m3aœWGEOL250_IDN GEOCODECBELTCKBELT2C!GROUP_C3TYPEC!FORMATIONCBEONCERACPERIODCABS_AGECREF_NUMCLEG_NUMN Shape_LengF Shape_AreaF DESCRIP_1CþDESCRIP_2CþDESCRIP_3Cþ 1Zml Blue Ridge Belt Blue Ridge Mount Rogers Formation Sedimentary and Metamorphic RocksMetagraywacke Proterozoic Late Proterozoic Late Proterozoic none none 18 4.08397987281e+003 9.63738736973e+005Interlayered with metaconglomerate, laminated metasiltstone, and slate; minor calcareous metasandstone, greenstone, and metarhyolite 2Zmf Blue Ridge Belt Blue Ridge Mount Rogers Formation Sedimentary and Metamorphic RocksMetafelsite Proterozoic Late Proterozoic Late Proterozoic 820 26 19 2.66282611565e+004 2.21891238779e+007Light-colored porphyritic extrusive rock 3Zml Blue Ridge Belt Blue Ridge Mount Rogers Formation Sedimentary and Metamorphic RocksMetagraywacke Proterozoic Late Proterozoic Late Proterozoic none none 18 3.33555846994e+003 5.79286883188e+005Interlayered with metaconglomerate, laminated metasiltstone, and slate; minor calcareous metasandstone, greenstone, and metarhyolite 4Zml Blue Ridge Belt Blue Ridge Mount Rogers Formation Sedimentary and Metamorphic RocksMetagraywacke Proterozoic Late Proterozoic Late Proterozoic none none 19 3.32529993069e+004 2.02255267697e+007Interlayered with metaconglomerate, laminated metasiltstone, and slate; minor calcareous metasandstone, greenstone, and metarhyolite 5Ybgg Blue Ridge Belt Blue Ridge Sedimentary and Metamorphic Rocks Sedimentary and Metamorphic RocksBiotite granitic gneiss Proterozoic Middle Proterozoic Middle Proterozoic 950-125014 4 1.81803770297e+005 4.50650730299e+008Pinkish gray to light gray, massive to well foliated, granitic to quartz monzonitic; includes variably mylonitized orthogneiss and paragneiss, interlayered amphibolite, calc-silicate rock, and marble. Includes granites of Bryson City area, Straight Fork window, and Elk Park Plutonic Suite 6Zml Blue Ridge Belt Blue Ridge Mount Rogers Formation Sedimentary and Metamorphic RocksMetagraywacke Proterozoic Late Proterozoic Late Proterozoic none none 18 1.79784292025e+004 6.38687426292e+006Interlayered with metaconglomerate, laminated metasiltstone, and slate; minor calcareous metasandstone, greenstone, and metarhyolite 7Ybgg Blue Ridge Belt Blue Ridge Sedimentary and Metamorphic Rocks Sedimentary and Metamorphic RocksBiotite granitic gneiss Proterozoic Middle Proterozoic Middle Proterozoic 950-121014 4 4.09609641199e+003 9.69311228272e+005Pinkish gray to light gray, massive to well foliated, granitic to quartz monzonitic; includes variably mylonitized orthogneiss and paragneiss, interlayered amphibolite, calc-silicate rock, and marble. Includes granites of Bryson City area, Straight Fork window, and Elk Park Plutonic Suite 8Zmf Blue Ridge Belt Blue Ridge Mount Rogers Formation Sedimentary and Metamorphic RocksMetafelsite Proterozoic Late Proterozoic Late Proterozoic 820 26 19 3.21340610930e+003 5.37840638244e+005Light-colored porphyritic extrusive rock 9Zml Blue Ridge Belt Blue Ridge Mount Rogers Formation Sedimentary and Metamorphic RocksMetagraywacke Proterozoic Late Proterozoic Late Proterozoic none none 18 1.63466048309e+004 3.38907873526e+006Interlayered with metaconglomerate, laminated metasiltstone, and slate; minor calcareous metasandstone, greenstone, and metarhyolite 10Zml Blue Ridge Belt Blue Ridge Mount Rogers Formation Sedimentary and Metamorphic RocksMetagraywacke Proterozoic Late Proterozoic Late Proterozoic none none 18 4.31916188372e+003 9.06132400318e+005Interlayered with metaconglomerate, laminated metasiltstone, and slate; minor calcareous metasandstone, greenstone, and metarhyolite 11Qp Coastal Plain Coastal Plain Quaternary Surficial deposits Surficial deposits, undivided Phanerozioc Cenozoic Quaternary none none 14 2.32209092203e+005 1.41526061046e+008Sand, clay, gravel, and peat deposited in marine, fluvial, eolian, and lacustrine environments. Quaternary deposits not shown at altitudes greater than approximately 25 feet above mean sea level (Suffolk Scarp, in part) 12Zatm Blue Ridge Belt Blue Ridge Ashe Metamorphic Suite and Tallulah Falls FormationSedimentary and Metamorphic RocksMuscovite-biotite gneiss Proterozoic Late Proterozoic Late Proterozoic none none 13 5.20131323487e+005 5.42964549748e+008Locally sulfidic; interlayered and gradational with mica schist, minor amphibolite, and hornblende gneiss 13Qp Coastal Plain Coastal Plain Quaternary Surficial deposits Surficial deposits, undivided Phanerozioc Cenozoic Quaternary none none 14 1.76766622822e+003 1.63779187766e+005Sand, clay, gravel, and peat deposited in marine, fluvial, eolian, and lacustrine environments. Quaternary deposits not shown at altitudes greater than approximately 25 feet above mean sea level (Suffolk Scarp, in part) 14Qp Coastal Plain Coastal Plain Quaternary Surficial deposits Surficial deposits, undivided Phanerozioc Cenozoic Quaternary none none 14 4.32565648188e+004 4.57839486406e+007Sand, clay, gravel, and peat deposited in marine, fluvial, eolian, and lacustrine environments. Quaternary deposits not shown at altitudes greater than approximately 25 feet above mean sea level (Suffolk Scarp, in part) 15Zata Blue Ridge Belt Blue Ridge Ashe Metamorphic Suite and Tallulah Falls FormationSedimentary and Metamorphic RocksAmphibolite Proterozoic Late Proterozoic Late Proterozoic none none 10 3.94958129422e+004 5.05473521800e+006Equigranular, massive to well foliated, interlayered, rarely discordant, metamorphosed intrusive and extrusive mafic rock; may include metasedimentary rock 16Zmf Blue Ridge Belt Blue Ridge Mount Rogers Formation Sedimentary and Metamorphic RocksMetafelsite Proterozoic Late Proterozoic Late Proterozoic 820 26 19 6.68509338588e+003 1.26142639638e+006Light-colored porphyritic extrusive rock 17Zata Blue Ridge Belt Blue Ridge Ashe Metamorphic Suite and Tallulah Falls FormationSedimentary and Metamorphic RocksAmphibolite Proterozoic Late Proterozoic Late Proterozoic none none 10 6.32864493429e+004 1.94890685240e+007Equigranular, massive to well foliated, interlayered, rarely discordant, metamorphosed intrusive and extrusive mafic rock; may include metasedimentary rock 18Qp Coastal Plain Coastal Plain Quaternary Surficial deposits Surficial deposits, undivided Phanerozioc Cenozoic Quaternary none none 14 3.35093687846e+004 2.78567302696e+007Sand, clay, gravel, and peat deposited in marine, fluvial, eolian, and lacustrine environments. Quaternary deposits not shown at altitudes greater than approximately 25 feet above mean sea level (Suffolk Scarp, in part) 19Qp Coastal Plain Coastal Plain Quaternary Surficial deposits Surficial deposits, undivided Phanerozioc Cenozoic Quaternary none none 14 1.83191384430e+003 1.48723714347e+005Sand, clay, gravel, and peat deposited in marine, fluvial, eolian, and lacustrine environments. Quaternary deposits not shown at altitudes greater than approximately 25 feet above mean sea level (Suffolk Scarp, in part) 20Ccl Blue Ridge Belt Blue Ridge Chilhowee Group Sedimentary and Metamorphic RocksLower Chilhowee Group Phanerozioc Paleozoic Cambrian none none 37 9.59451804139e+003 1.80767711117e+006Feldspathic arenite, white to yellowish gray. Minor silty shale, feldspathic siltstone, and conglomerate in lower part. Includes Unicoi Formation of Hot Springs window 21Qp Coastal Plain Coastal Plain Quaternary Surficial deposits Surficial deposits, undivided Phanerozioc Cenozoic Quaternary none none 14 6.68556263182e+005 2.68896328385e+009Sand, clay, gravel, and peat deposited in marine, fluvial, eolian, and lacustrine environments. Quaternary deposits not shown at altitudes greater than approximately 25 feet above mean sea level (Suffolk Scarp, in part) 22Qp Coastal Plain Coastal Plain Quaternary Surficial deposits Surficial deposits, undivided Phanerozioc Cenozoic Quaternary none none 14 2.57136998710e+003 2.61022386519e+005Sand, clay, gravel, and peat deposited in marine, fluvial, eolian, and lacustrine environments. Quaternary deposits not shown at altitudes greater than approximately 25 feet above mean sea level (Suffolk Scarp, in part) 23Zata Blue Ridge Belt Blue Ridge Ashe Metamorphic Suite and Tallulah Falls FormationSedimentary and Metamorphic RocksAmphibolite Proterozoic Late Proterozoic Late Proterozoic none none 10 2.70396427296e+004 6.48563425186e+006Equigranular, massive to well foliated, interlayered, rarely discordant, metamorphosed intrusive and extrusive mafic rock; may include metasedimentary rock 24Ccl Blue Ridge Belt Blue Ridge Chilhowee Group Sedimentary and Metamorphic RocksLower Chilhowee Group Phanerozioc Paleozoic Cambrian none none 37 9.73894722350e+003 3.16599984953e+006Feldspathic arenite, white to yellowish gray. Minor silty shale, feldspathic siltstone, and conglomerate in lower part. Includes Unicoi Formation of Hot Springs window 25Qp Coastal Plain Coastal Plain Quaternary Surficial deposits Surficial deposits, undivided Phanerozioc Cenozoic Quaternary none none 14 6.45700772541e+003 1.56599064570e+006Sand, clay, gravel, and peat deposited in marine, fluvial, eolian, and lacustrine environments. Quaternary deposits not shown at altitudes greater than approximately 25 feet above mean sea level (Suffolk Scarp, in part) 26Zabg Blue Ridge Belt Blue Ridge Alligator Back Formation Sedimentary and Metamorphic RocksGneiss Proterozoic Late Proterozoic Late Proterozoic none none 16 1.02811986033e+006 2.23307551738e+009Finely laminated to thin layered; locally contains massive gneiss and micaceous granule conglomerate; includes schist, phyllite, and amphibolite 27Qp Coastal Plain Coastal Plain Quaternary Surficial deposits Surficial deposits, undivided Phanerozioc Cenozoic Quaternary none none 14 4.71290769400e+003 8.40934969331e+005Sand, clay, gravel, and peat deposited in marine, fluvial, eolian, and lacustrine environments. Quaternary deposits not shown at altitudes greater than approximately 25 feet above mean sea level (Suffolk Scarp, in part) 28Tpy Coastal Plain Coastal Plain Tertiary Sedimentary Rocks Yorktown Formation and Duplin Formation, Undivided Phanerozioc Cenozoic Tertiary none none 10 1.65012252547e+006 1.39279914036e+010Yorktown Formation: Fossiliferous clay with varying amounts of fine-grained sand, bluish gray, shell material commonly concentrated in lenses; mainly in area north of Neuse River. Duplin Formation: Shelly, medium- to coarse-grained sand, sandy marl, and limestone, bluish gray; mainly in area south of Neuse River 29Zabs Blue Ridge Belt Blue Ridge Alligator Back Formation Sedimentary and Metamorphic RocksMica schist and phyllite Proterozoic Late Proterozoic Late Proterozoic none none 17 3.60161661813e+004 1.87918877385e+007Laminated to thin layered; interlayered with minor biotite-muscovite gneiss and amphibolite 30Qp Coastal Plain Coastal Plain Quaternary Surficial deposits Surficial deposits, undivided Phanerozioc Cenozoic Quaternary none none 14 3.69932346403e+003 3.90091137759e+005Sand, clay, gravel, and peat deposited in marine, fluvial, eolian, and lacustrine environments. Quaternary deposits not shown at altitudes greater than approximately 25 feet above mean sea level (Suffolk Scarp, in part) 31Ybgg Blue Ridge Belt Blue Ridge Sedimentary and Metamorphic Rocks Sedimentary and Metamorphic RocksBiotite granitic gneiss Proterozoic Middle Proterozoic Middle Proterozoic 950-125014 4 2.66751995246e+003 2.70608963286e+005Pinkish gray to light gray, massive to well foliated, granitic to quartz monzonitic; includes variably mylonitized orthogneiss and paragneiss, interlayered amphibolite, calc-silicate rock, and marble. Includes granites of Bryson City area, Straight Fork window, and Elk Park Plutonic Suite 32CZam Blue Ridge Belt Blue Ridge Intrusive Rocks Intrusive Rocks Amphibolite Proterozoic-PhanerozoicLater Proterozoic-PaleozoicLate Proterozoic-Cambriannone none 4 2.61227905401e+004 5.25945352578e+006Equigranular, massive to well foliated, dioritic to basaltic dikes and sills; variably metamorphosed 33Qp Coastal Plain Coastal Plain Quaternary Surficial deposits Surficial deposits, undivided Phanerozioc Cenozoic Quaternary none none 14 2.56733134446e+003 4.08624128928e+005Sand, clay, gravel, and peat deposited in marine, fluvial, eolian, and lacustrine environments. Quaternary deposits not shown at altitudes greater than approximately 25 feet above mean sea level (Suffolk Scarp, in part) 34Zabs Blue Ridge Belt Blue Ridge Alligator Back Formation Sedimentary and Metamorphic RocksMica schist and phyllite Proterozoic Late Proterozoic Late Proterozoic none none 17 2.72071224951e+005 4.28987643647e+008Laminated to thin layered; interlayered with minor biotite-muscovite gneiss and amphibolite 35Qp Coastal Plain Coastal Plain Quaternary Surficial deposits Surficial deposits, undivided Phanerozioc Cenozoic Quaternary none none 14 1.70516959043e+003 1.42459973066e+005Sand, clay, gravel, and peat deposited in marine, fluvial, eolian, and lacustrine environments. Quaternary deposits not shown at altitudes greater than approximately 25 feet above mean sea level (Suffolk Scarp, in part) 36CZbb Inner Piedmont, Chauga Belt, Smith River Allochthon, and Sauratown MountainSmith River Allochthon Metamorphic rocks Metamorphic Rocks Banded gneiss Proterozoic-PhanerozoicLater Proterozoic-PaleozoicLate Proterozoic-Cambriannone none 6 2.91819816347e+005 4.26802376382e+008Interlayered with calc-silicate rock, metaconglomerate, amphibolite, sillimanite-mica schist, and granitic rock 37Qp Coastal Plain Coastal Plain Quaternary Surficial deposits Surficial deposits, undivided Phanerozioc Cenozoic Quaternary none none 14 7.41352079505e+003 1.63274895584e+006Sand, clay, gravel, and peat deposited in marine, fluvial, eolian, and lacustrine environments. Quaternary deposits not shown at altitudes greater than approximately 25 feet above mean sea level (Suffolk Scarp, in part) 38OCg Inner Piedmont, Chauga Belt, Smith River Allochthon, and Sauratown MountainSmith River Allochthon Intrusive Rocks Intrusive Rocks Metamorphosed granitic rock Phanerozioc Paleozoic Cambrian-Ordovician 455-540 10 5 3.25152214973e+004 2.78570188828e+007Equigranular to megacrystic, foliated to massive. Includes Toluca Granite 39PzZq Eastern Slate Belt Eastern Slate Belt Intrusive Rocks Intrusive Rocks Metamorphosed quartz diorite Phanerozioc Paleozoic Permian none none 2 7.98462125088e+004 5.41450884087e+007Foliated to massive 40Tt Coastal Plain Coastal Plain Tertiary Sedimentary Rocks Terrace deposites and upland sediment Phanerozioc Cenozoic Tertiary none none 12 8.22847097069e+003 2.14153424927e+006Gravel, clayey sand, and sand, minor iron-oxide cemented sandstone 41Tt Coastal Plain Coastal Plain Tertiary Sedimentary Rocks Terrace deposites and upland sediment Phanerozioc Cenozoic Tertiary none none 12 2.78172584137e+004 1.95462664163e+007Gravel, clayey sand, and sand, minor iron-oxide cemented sandstone 42CZig Raleigh Belt Raleigh Belt Metamorphic rocks Metamorphic Rocks Injected gneiss Proterozoic-PhanerozoicLater Proterozoic-PaleozoicLate Proterozoic-Cambriannone none 4 1.92125894667e+004 7.16844239190e+006Biotite gneiss and schist intruded by numerous sills and dikes of granite, pegmatite, and aplite; minor hornblende gneiss 43Tt Coastal Plain Coastal Plain Tertiary Sedimentary Rocks Terrace deposites and upland sediment Phanerozioc Cenozoic Tertiary none none 12 3.51488951445e+004 1.43950735085e+007Gravel, clayey sand, and sand, minor iron-oxide cemented sandstone 44CZig Raleigh Belt Raleigh Belt Metamorphic rocks Metamorphic Rocks Injected gneiss Proterozoic-PhanerozoicLater Proterozoic-PaleozoicLate Proterozoic-Cambriannone none 4 6.44938612384e+003 1.41755174563e+006Biotite gneiss and schist intruded by numerous sills and dikes of granite, pegmatite, and aplite; minor hornblende gneiss 45CZms Raleigh Belt Raleigh Belt Metamorphic rocks Metamorphic Rocks Mica schist Proterozoic-PhanerozoicLater Proterozoic-PaleozoicLate Proterozoic-Cambriannone none 14 1.91857001538e+005 6.24146663204e+008Contains garnet, staurolite, kyanite, and sillimanite; includes lenses and layers of quartz schist, micaceous quartzite, biotite gneiss, amphibolite, and phyllite 46CZig Raleigh Belt Raleigh Belt Metamorphic rocks Metamorphic Rocks Injected gneiss Proterozoic-PhanerozoicLater Proterozoic-PaleozoicLate Proterozoic-Cambriannone none 4 1.97326668281e+003 2.02530111175e+005Biotite gneiss and schist intruded by numerous sills and dikes of granite, pegmatite, and aplite; minor hornblende gneiss 47OCg Inner Piedmont, Chauga Belt, Smith River Allochthon, and Sauratown MountainSmith River Allochthon Intrusive Rocks Intrusive Rocks Metamorphosed granitic rock Phanerozioc Paleozoic Cambrian-Ordovician 455-540 10 5 2.18399037321e+004 9.39272863964e+006Equigranular to megacrystic, foliated to massive. Includes Toluca Granite 48CZig Raleigh Belt Raleigh Belt Metamorphic rocks Metamorphic Rocks Injected gneiss Proterozoic-PhanerozoicLater Proterozoic-PaleozoicLate Proterozoic-Cambriannone none 4 8.58060900765e+004 1.04543532659e+008Biotite gneiss and schist intruded by numerous sills and dikes of granite, pegmatite, and aplite; minor hornblende gneiss 49PPmg Raleigh Belt Raleigh Belt Intrusive Rocks Intrusive Rocks Foliated to massive granitic rock Phanerozioc Paleozoic Pennsylvanian-Permian 270-320 4,22 4 4.80851796564e+004 4.31408823120e+007Megacrystic to equigranular. Rolesville suite, Wise and Lemon Springs (?) intrusives 50CZms Inner Piedmont, Chauga Belt, Smith River Allochthon, and Sauratown MountainSmith River Allochthon Metamorphic rocks Metamorphic Rocks Mica schist Proterozoic-PhanerozoicLater Proterozoic-PaleozoicLate Proterozoic-Cambriannone none 14 3.60231079325e+004 2.70004091702e+007Garnet, staurolite, kyanite, or sillimanite occur locally; lenses and layers of quartz schist, micaceous quartzite, calc-silicate rock, biotite gneiss, amphibolite, and phyllite 51PPg Raleigh Belt Raleigh Belt Intrusive Rocks Intrusive Rocks Granitic rock Phanerozioc Paleozoic Pennsylvanian-Permian 265-325 11 5 6.05739540341e+004 1.77747866761e+008Megacrystic to equigranular. Castalia and Wilton intrusives 52OCg Inner Piedmont, Chauga Belt, Smith River Allochthon, and Sauratown MountainSmith River Allochthon Intrusive Rocks Intrusive Rocks Metamorphosed granitic rock Phanerozioc Paleozoic Cambrian-Ordovician 455-540 10 5 1.49841235248e+004 6.62721406523e+006Equigranular to megacrystic, foliated to massive. Includes Toluca Granite 53CZma1Inner Piedmont, Chauga Belt, Smith River Allochthon, and Sauratown MountainSauratown Mountains AnticlinoriumMetamorphic rocks Metamorphic Rocks Metagraywacke, amphibolite, and kyanite schist Proterozoic-PhanerozoicLater Proterozoic-PaleozoicLate Proterozoic-Cambriannone none 8 1.62299946230e+005 1.05245601243e+008Metagraywacke (biotite gneiss) interlayered and gradational with amphibolite and kyanite schist; minor ultramafic and granitic rock 54CZbg Raleigh Belt Raleigh Belt Metamorphic rocks Metamorphic Rocks Biotite gneiss and schist Proterozoic-PhanerozoicLater Proterozoic-PaleozoicLate Proterozoic-Cambriannone none 6 1.75188593117e+005 3.42507332940e+008Inequigranular and megacrystic; in places contains garnet; interlayered and gradational with mica schist and amphibolite; includes small masses of granitic rock 55CZam Inner Piedmont, Chauga Belt, Smith River Allochthon, and Sauratown MountainSauratown Mountains AnticlinoriumIntrusive Rocks Intrusive Rocks Amphibolite Proterozoic-PhanerozoicLater Proterozoic-PaleozoicLate Proterozoic-Cambriannone none 12 9.42770734113e+003 2.95015723136e+006Metamorphosed mafic extrusive and intrusive rock; includes hornblende gneiss, thin layers of mica schist, calc-silicate rock, and, rarely, marble. Also includes small masses of metadiorite and metagabbro 56Qp Coastal Plain Coastal Plain Quaternary Surficial deposits Surficial deposits, undivided Phanerozioc Cenozoic Quaternary none none 14 1.09674317029e+003 8.67085482687e+004Sand, clay, gravel, and peat deposited in marine, fluvial, eolian, and lacustrine environments. Quaternary deposits not shown at altitudes greater than approximately 25 feet above mean sea level (Suffolk Scarp, in part) 57CZms Inner Piedmont, Chauga Belt, Smith River Allochthon, and Sauratown MountainSauratown Mountains AnticlinoriumMetamorphic rocks Metamorphic Rocks Mica schist Proterozoic-PhanerozoicLater Proterozoic-PaleozoicLate Proterozoic-Cambriannone none 14 1.81469420091e+005 1.08557130072e+008Garnet, staurolite, kyanite, or sillimanite occur locally; lenses and layers of quartz schist, micaceous quartzite, calc-silicate rock, biotite gneiss, amphibolite, and phyllite 58Zata Blue Ridge Belt Blue Ridge Ashe Metamorphic Suite and Tallulah Falls FormationSedimentary and Metamorphic RocksAmphibolite Proterozoic Late Proterozoic Late Proterozoic none none 10 4.85117034205e+005 3.47682525484e+008Equigranular, massive to well foliated, interlayered, rarely discordant, metamorphosed intrusive and extrusive mafic rock; may include metasedimentary rock 59CZph Carolina Slate Belt Carolina Slate Belt Metamorphic rocks Metamorphic Rocks Phyllite and schist Proterozoic-PhanerozoicLater Proterozoic-PaleozoicLate Proterozoic-Cambriannone none 1 7.34281704964e+004 1.63851257804e+007Locally laminated and pyritic; includes phyllonite, sheared fine-grained metasediment, and metavolcanic rock. In Lilesville granite aureole, includes hornfels (CZph1), and biotite gneiss and schist (CZbg) 60CZg Carolina Slate Belt Carolina Slate Belt Intrusive Rocks Intrusive Rocks Metamorphosed granitic rock Proterozoic-PhanerozoicLater Proterozoic-PaleozoicLate Proterozoic-Cambrian520-650 3,21,9,23,28,15 1 3.66344468416e+005 6.18695188589e+008Megacrystic, well foliated; locally contains hornblende. Chapel Hill, Chatham, Farrington, Meadow Flats, Mt. Moriah, Parks Crossroads plutons, and Roxboro and Vance County suites 61CZmg Inner Piedmont, Chauga Belt, Smith River Allochthon, and Sauratown MountainSauratown Mountains AnticlinoriumMetamorphic rocks Metamorphic Rocks Metagraywacke and muscovite-biotite schist Proterozoic-PhanerozoicLater Proterozoic-PaleozoicLate Proterozoic-Cambriannone none 9 4.56562137894e+005 9.12367047952e+008Metagraywacke (biotite gneiss) interlayered and gradational with muscovite-biotite schist; minor marble and granitic rock 62PPg Raleigh Belt Raleigh Belt Intrusive Rocks Intrusive Rocks Granitic rock Phanerozioc Paleozoic Pennsylvanian-Permian 265-325 11 5 1.73312852619e+004 9.94547610930e+006Megacrystic to equigranular. Castalia and Wilton intrusives 63CZve Carolina Slate Belt Carolina Slate Belt Metamorphic rocks Metamorphic Rocks Metavolcanic epi-clastic rock Proterozoic-PhanerozoicLater Proterozoic-PaleozoicLate Proterozoic-Cambriannone none 3 4.84313569669e+004 4.86779287894e+007Metamorphosed argillite, mudstone, volcanic sandstone, conglomerate, and volcanic rock 64TRds Triassic Basins Dan River Basin Dan River Group Sedimentary Rocks Stoneville Formation Phanerozioc Mesozoic Triassic none none 7 1.41146945043e+005 2.62305747128e+008Conglomerate, sandstone, and mudstone, lenticular and laterally-gradational bedding 65CZv Carolina Slate Belt Carolina Slate Belt Metamorphic rocks Metamorphic Rocks Metavolcanic rock Proterozoic-PhanerozoicLater Proterozoic-PaleozoicLate Proterozoic-Cambriannone none 4 1.50046341403e+005 2.28465994536e+008Interbedded felsic to mafic tuffs and flowrock 66PzZg Carolina Slate Belt Carolina Slate Belt Intrusive Rocks Intrusive Rocks Metamorphosed gabbro and diorite Phanerozioc Paleozoic Permian none none 4 1.35497644977e+004 7.84275097230e+006Foliated to masive 67TRdc Triassic Basins Dan River Basin Dan River Group Sedimentary Rocks Cow Branch Formation Phanerozioc Mesozoic Triassic none none 6 2.46784857399e+004 1.68804639713e+007Mudstone with minor sandstone, gray, laterally-continuous bedding. Intertongues with Stoneville and Pine Hall formations 68CZbg Charlotte and Milton Belts Milton Belt Metamorphic rocks Metamorphic Rocks Biotite gneiss and schist Proterozoic-PhanerozoicLater Proterozoic-PaleozoicLate Proterozoic-Cambriannone none 6 8.44868577486e+005 1.82863023533e+009Inequigranular and megacrystic; abundant potassic feldspar and garnet; interlayered and gradational with calc-silicate rock, sillimanite-mica schist, mica schist, and amphibolite. Contains small masses of granitic rock 69CZfv Carolina Slate Belt Carolina Slate Belt Metamorphic rocks Metamorphic Rocks Felsic metavolcanic rock Proterozoic-PhanerozoicLater Proterozoic-PaleozoicLate Proterozoic-Cambriannone none 6 2.77493633919e+004 2.77389404562e+007Metamorphosed dacitic to rhyolitic flows and tuffs, light gray to greenish gray; interbedded with mafic and intermediate metavolcanic rock, meta-argillite, and metamudstone. CZfv2 - Cid Formation (southwest of Asheboro), CZfv1 - Uwharrie Formation (at Asheboro and to south) 70TRdp Triassic Basins Dan River Basin Dan River Group Sedimentary Rocks Pine Hall Formation Phanerozioc Mesozoic Triassic none none 5 7.33569176059e+004 5.30557320541e+007Sandstone, mudstone, and conglomerate, yellowish orange to brown 71Sg Charlotte and Milton Belts Milton Belt Intrusive Rocks Intrusive Rocks Shelton granite gneiss Phanerozioc Paleozoic Silurian 429 21 6 5.94152486259e+004 6.74056695410e+007Poorly foliated, lineated granitic to quartz monzonitic gneiss 72CZve Carolina Slate Belt Carolina Slate Belt Metamorphic rocks Metamorphic Rocks Metavolcanic epi-clastic rock Proterozoic-PhanerozoicLater Proterozoic-PaleozoicLate Proterozoic-Cambriannone none 3 2.12208181245e+005 2.04735299876e+008Metamorphosed argillite, mudstone, volcanic sandstone, conglomerate, and volcanic rock 73CZfg Charlotte and Milton Belts Milton Belt Metamorphic rocks Metamorphic Rocks Felsic mica gneiss Proterozoic-PhanerozoicLater Proterozoic-PaleozoicLate Proterozoic-Cambriannone none 7 1.68509848360e+004 1.01794113599e+007Interlayered with biotite and hornblende gneiss and schist 74CZfg Charlotte and Milton Belts Milton Belt Metamorphic rocks Metamorphic Rocks Felsic mica gneiss Proterozoic-PhanerozoicLater Proterozoic-PaleozoicLate Proterozoic-Cambriannone none 7 3.00533369635e+004 1.01643521051e+007Interlayered with biotite and hornblende gneiss and schist 75CZfg Charlotte and Milton Belts Milton Belt Metamorphic rocks Metamorphic Rocks Felsic mica gneiss Proterozoic-PhanerozoicLater Proterozoic-PaleozoicLate Proterozoic-Cambriannone none 7 9.48421422785e+004 8.31762932898e+007Interlayered with biotite and hornblende gneiss and schist 76CZfv Carolina Slate Belt Carolina Slate Belt Metamorphic rocks Metamorphic Rocks Felsic metavolcanic rock Proterozoic-PhanerozoicLater Proterozoic-PaleozoicLate Proterozoic-Cambriannone none 6 4.76702742830e+004 6.19182258449e+007Metamorphosed dacitic to rhyolitic flows and tuffs, light gray to greenish gray; interbedded with mafic and intermediate metavolcanic rock, meta-argillite, and metamudstone. CZfv2 - Cid Formation (southwest of Asheboro), CZfv1 - Uwharrie Formation (at Asheboro and to south) 77CZv Carolina Slate Belt Carolina Slate Belt Metamorphic rocks Metamorphic Rocks Metavolcanic rock Proterozoic-PhanerozoicLater Proterozoic-PaleozoicLate Proterozoic-Cambriannone none 4 6.78112124061e+004 7.36555013621e+007Interbedded felsic to mafic tuffs and flowrock 78OCg Inner Piedmont, Chauga Belt, Smith River Allochthon, and Sauratown MountainSauratown Mountains AnticlinoriumIntrusive Rocks Intrusive Rocks Metamorphosed granitic rock Phanerozioc Paleozoic Cambrian-Ordovician 455-540 10 5 1.06871384425e+004 2.72502475685e+006Equigranular to megacrystic, foliated to massive. Includes Toluca Granite 79PzZg Charlotte and Milton Belts Milton Belt Intrusive Rocks Intrusive Rocks Metamorphosed gabbro and diorite Phanerozioc Paleozoic Permian none none 3 2.37378798942e+004 8.63493321892e+006Foliated to masive 80CZam Blue Ridge Belt Blue Ridge Intrusive Rocks Intrusive Rocks Amphibolite Proterozoic-PhanerozoicLater Proterozoic-PaleozoicLate Proterozoic-Cambriannone none 4 2.92590743648e+004 8.36081925020e+006Equigranular, massive to well foliated, dioritic to basaltic dikes and sills; variably metamorphosed 1837Zata Blue Ridge Belt Blue Ridge Ashe Metamorphic Suite and Tallulah Falls FormationSedimentary and Metamorphic RocksAmphibolite Proterozoic Late Proterozoic Late Proterozoic none none 10 3.01301623188e+004 4.25872678869e+006Equigranular, massive to well foliated, interlayered, rarely discordant, metamorphosed intrusive and extrusive mafic rock; may include metasedimentary rock 81CZfg Raleigh Belt Raleigh Belt Metamorphic rocks Metamorphic Rocks Felsic mica gneiss Proterozoic-PhanerozoicLater Proterozoic-PaleozoicLate Proterozoic-Cambriannone none 3 2.03752570436e+004 4.02662952096e+006Interlayered with graphitic mica schist and mica-garnet schist, commonly with kyanite; minor hornblende gneiss 82CZmd Eastern Slate Belt Eastern Slate Belt Metamorphic rocks Metamorphic Rocks Metamudstone and meta-argillite Proterozoic-PhanerozoicLater Proterozoic-PaleozoicLate Proterozoic-Cambriannone none 2 2.43348639549e+004 9.44133420561e+006Bedding plane and axial-planar cleavage common; interbedded with metasandstone, metaconglomerate, and metavolcanic rock 83Dqd Blue Ridge Belt Blue Ridge Intrusive Rocks Intrusive Rocks Quartz diorite to granodiorite Phanerozioc Paleozoic Devonian 390 4 7 2.83868506877e+004 5.13524739444e+007Contains biotite, muscovite, and xenocrysts. Includes Whiteside Mountain, Stone Mountain, Mount Airy, Spruce Pine, and other smaller plutons 84PzZg Carolina Slate Belt Carolina Slate Belt Intrusive Rocks Intrusive Rocks Metamorphosed gabbro and diorite Phanerozioc Paleozoic Permian none none 4 6.86509576825e+003 3.03315516151e+006Foliated to masive 85CZam Inner Piedmont, Chauga Belt, Smith River Allochthon, and Sauratown MountainSmith River Allochthon Intrusive Rocks Intrusive Rocks Amphibolite Proterozoic-PhanerozoicLater Proterozoic-PaleozoicLate Proterozoic-Cambriannone none 12 4.06227085419e+004 1.94235836073e+007Metamorphosed mafic extrusive and intrusive rock; includes hornblende gneiss, thin layers of mica schist, calc-silicate rock, and, rarely, marble. Also includes small masses of metadiorite and metagabbro 87Qp Coastal Plain Coastal Plain Quaternary Surficial deposits Surficial deposits, undivided Phanerozioc Cenozoic Quaternary none none 14 9.39932118368e+002 6.52064196374e+004Sand, clay, gravel, and peat deposited in marine, fluvial, eolian, and lacustrine environments. Quaternary deposits not shown at altitudes greater than approximately 25 feet above mean sea level (Suffolk Scarp, in part) 88PzZu Blue Ridge Belt Blue Ridge Intrusive Rocks Intrusive Rocks Meta-ultramafic rock Phanerozioc Paleozoic Permian none none 5 1.26739666009e+004 2.14439176630e+006Metamorphosed dunite, local peridotite; serpentinite, soapstone, and other altered ultramafic rock. Only larger bodies shown 89Zg Blue Ridge Belt Blue Ridge Intrusive Rocks Intrusive Rocks Metamorphosed granitic rock Proterozoic Late Proterozoic Late Proterozoic 680-710 25,27 3 4.57580561787e+003 8.13224495291e+005Massive to foliated, locally mylonitic. Beech, Crossnore, Brown Mountain, Lansing, and other granitic bodies 90OCg Inner Piedmont, Chauga Belt, Smith River Allochthon, and Sauratown MountainSauratown Mountains AnticlinoriumIntrusive Rocks Intrusive Rocks Metamorphosed granitic rock Phanerozioc Paleozoic Cambrian-Ordovician 455-540 10 5 1.07850931994e+004 3.53364119863e+006Equigranular to megacrystic, foliated to massive. Includes Toluca Granite 91Qp Coastal Plain Coastal Plain Quaternary Surficial deposits Surficial deposits, undivided Phanerozioc Cenozoic Quaternary none none 14 1.37703201009e+003 1.13337383328e+005Sand, clay, gravel, and peat deposited in marine, fluvial, eolian, and lacustrine environments. Quaternary deposits not shown at altitudes greater than approximately 25 feet above mean sea level (Suffolk Scarp, in part) 92Qp Coastal Plain Coastal Plain Quaternary Surficial deposits Surficial deposits, undivided Phanerozioc Cenozoic Quaternary none none 14 4.60170745811e+003 5.92826802347e+005Sand, clay, gravel, and peat deposited in marine, fluvial, eolian, and lacustrine environments. Quaternary deposits not shown at altitudes greater than approximately 25 feet above mean sea level (Suffolk Scarp, in part) 93Zats Blue Ridge Belt Blue Ridge Ashe Metamorphic Suite and Tallulah Falls FormationSedimentary and Metamorphic RocksMica schist Proterozoic Late Proterozoic Late Proterozoic none none 12 1.81312168535e+004 3.20137938416e+006Locally sulfidic and graphitic; minor interlayered mica gneiss and amphibolite 94Tt Coastal Plain Coastal Plain Tertiary Sedimentary Rocks Terrace deposites and upland sediment Phanerozioc Cenozoic Tertiary none none 12 2.65621239351e+003 5.12567160843e+005Gravel, clayey sand, and sand, minor iron-oxide cemented sandstone 95PzZg Carolina Slate Belt Carolina Slate Belt Intrusive Rocks Intrusive Rocks Metamorphosed gabbro and diorite Phanerozioc Paleozoic Permian none none 4 1.19995667594e+004 9.15082654395e+006Foliated to masive 96Qp Coastal Plain Coastal Plain Quaternary Surficial deposits Surficial deposits, undivided Phanerozioc Cenozoic Quaternary none none 14 2.01360618506e+003 1.86516593094e+005Sand, clay, gravel, and peat deposited in marine, fluvial, eolian, and lacustrine environments. Quaternary deposits not shown at altitudes greater than approximately 25 feet above mean sea level (Suffolk Scarp, in part) 1838Zabs Blue Ridge Belt Blue Ridge Alligator Back Formation Sedimentary and Metamorphic RocksMica schist and phyllite Proterozoic Late Proterozoic Late Proterozoic none none 17 1.93719077436e+004 5.75007480270e+006Laminated to thin layered; interlayered with minor biotite-muscovite gneiss and amphibolite 97CZbg Raleigh Belt Raleigh Belt Metamorphic rocks Metamorphic Rocks Biotite gneiss and schist Proterozoic-PhanerozoicLater Proterozoic-PaleozoicLate Proterozoic-Cambriannone none 6 1.03960595504e+004 2.58121631897e+006Inequigranular and megacrystic; in places contains garnet; interlayered and gradational with mica schist and amphibolite; includes small masses of granitic rock 98CZfg Charlotte and Milton Belts Milton Belt Metamorphic rocks Metamorphic Rocks Felsic mica gneiss Proterozoic-PhanerozoicLater Proterozoic-PaleozoicLate Proterozoic-Cambriannone none 7 8.87710548532e+003 4.66992907354e+006Interlayered with biotite and hornblende gneiss and schist 99Qp Coastal Plain Coastal Plain Quaternary Surficial deposits Surficial deposits, undivided Phanerozioc Cenozoic Quaternary none none 14 1.89407381834e+003 2.56458693166e+005Sand, clay, gravel, and peat deposited in marine, fluvial, eolian, and lacustrine environments. Quaternary deposits not shown at altitudes greater than approximately 25 feet above mean sea level (Suffolk Scarp, in part) 100TRdc Triassic Basins Dan River Basin Dan River Group Sedimentary Rocks Cow Branch Formation Phanerozioc Mesozoic Triassic none none 6 4.02927890512e+003 5.07589890638e+005Mudstone with minor sandstone, gray, laterally-continuous bedding. Intertongues with Stoneville and Pine Hall formations 101CZfv Eastern Slate Belt Eastern Slate Belt Metamorphic rocks Metamorphic Rocks Felsic metavolcanic rock Proterozoic-PhanerozoicLater Proterozoic-PaleozoicLate Proterozoic-Cambriannone none 6 4.28090466546e+004 2.37900861150e+007Metamorphosed dacitic to rhyolitic flows and tuffs, light gray to greenish gray; interbedded with mafic and intermediate metavolcanic rock, meta-argillite, and metamudstone 102Qp Coastal Plain Coastal Plain Quaternary Surficial deposits Surficial deposits, undivided Phanerozioc Cenozoic Quaternary none none 14 1.82256798193e+003 1.83127008234e+005Sand, clay, gravel, and peat deposited in marine, fluvial, eolian, and lacustrine environments. Quaternary deposits not shown at altitudes greater than approximately 25 feet above mean sea level (Suffolk Scarp, in part) 103Qp Coastal Plain Coastal Plain Quaternary Surficial deposits Surficial deposits, undivided Phanerozioc Cenozoic Quaternary none none 14 2.13535233505e+003 2.32087921550e+005Sand, clay, gravel, and peat deposited in marine, fluvial, eolian, and lacustrine environments. Quaternary deposits not shown at altitudes greater than approximately 25 feet above mean sea level (Suffolk Scarp, in part) 538CZba Inner Piedmont, Chauga Belt, Smith River Allochthon, and Sauratown MountainInner Piedmont Metamorphic rocks Metamorphic Rocks Megacrystic biotite gneiss Proterozoic-PhanerozoicLater Proterozoic-PaleozoicLate Proterozoic-Cambriannone none 11 7.64765027912e+004 2.91306967241e+007Poorly layered to massive; megacrysts of microcline and quartz; local mica schist, amphibolite, and biotite gneiss 539CZpg Inner Piedmont, Chauga Belt, Smith River Allochthon, and Sauratown MountainInner Piedmont Metamorphic rocks Metamorphic Rocks Inequigranular biotite gneiss Proterozoic-PhanerozoicLater Proterozoic-PaleozoicLate Proterozoic-Cambriannone none 4 4.29535765420e+004 1.20232827802e+007Weakly foliated to massive, contains plagioclase megacrysts and, rarely, larger megacrysts of quartz and feldspar 540OCg Inner Piedmont, Chauga Belt, Smith River Allochthon, and Sauratown MountainInner Piedmont Intrusive Rocks Intrusive Rocks Metamorphosed granitic rock Phanerozioc Paleozoic Cambrian-Ordovician 455-540 10 5 5.36731399026e+004 5.55842774060e+007Equigranular to megacrystic, foliated to massive. Includes Toluca Granite 541PzZg Carolina Slate Belt Carolina Slate Belt Intrusive Rocks Intrusive Rocks Metamorphosed gabbro and diorite Phanerozioc Paleozoic Permian none none 4 1.15653649559e+004 5.36772448987e+006Foliated to masive 542PzZm Charlotte and Milton Belts Charlotte Belt Intrusive Rocks Intrusive Rocks Metamorphosed mafic rock Phanerozioc Paleozoic Permian none none 3 1.22681532858e+005 1.44845799129e+008Metagabbro, metadiorite, and mafic plutonic-volcanic complexes 543Zsp Blue Ridge Belt Blue Ridge Snowbird Group Sedimentary and Metamorphic RocksPigeon Siltstone Proterozoic Late Proterozoic Late Proterozoic none none 23 1.68947926760e+004 1.16858300477e+007Thin bedded to laminated, commonly cross-bedded, metamorphosed; locally includes argillite and calcareous and ankeritic metasiltstone grading to silty metalimestone 544Tt Coastal Plain Coastal Plain Tertiary Sedimentary Rocks Terrace deposites and upland sediment Phanerozioc Cenozoic Tertiary none none 12 3.65692016108e+003 1.00993814957e+006Gravel, clayey sand, and sand, minor iron-oxide cemented sandstone 545Dqd Blue Ridge Belt Blue Ridge Intrusive Rocks Intrusive Rocks Quartz diorite to granodiorite Phanerozioc Paleozoic Devonian 390 4 7 4.76699315181e+003 7.80771482973e+005Contains biotite, muscovite, and xenocrysts. Includes Whiteside Mountain, Stone Mountain, Mount Airy, Spruce Pine, and other smaller plutons 546CZms Inner Piedmont, Chauga Belt, Smith River Allochthon, and Sauratown MountainInner Piedmont Metamorphic rocks Metamorphic Rocks Mica schist Proterozoic-PhanerozoicLater Proterozoic-PaleozoicLate Proterozoic-Cambriannone none 14 6.76169480844e+005 8.67975035673e+008Garnet, staurolite, kyanite, or sillimanite occur locally; lenses and layers of quartz schist, micaceous quartzite, calc-silicate rock, biotite gneiss, amphibolite, and phyllite 760Qp Coastal Plain Coastal Plain Quaternary Surficial deposits Surficial deposits, undivided Phanerozioc Cenozoic Quaternary none none 14 8.97187664636e+002 5.44675616844e+004Sand, clay, gravel, and peat deposited in marine, fluvial, eolian, and lacustrine environments. Quaternary deposits not shown at altitudes greater than approximately 25 feet above mean sea level (Suffolk Scarp, in part) 761PPg Eastern Slate Belt Eastern Slate Belt Intrusive Rocks Intrusive Rocks Granitic rock Phanerozioc Paleozoic Pennsylvanian-Permian 265-325 11,21,1,29 6 2.50047875453e+003 4.28768065394e+005Megacrystic to equigranular. Castalia, Lilington, Medoc Mountain, Sims, Contentnea Creek (?), and Elm City (?) intrusives 762OCg Inner Piedmont, Chauga Belt, Smith River Allochthon, and Sauratown MountainInner Piedmont Intrusive Rocks Intrusive Rocks Metamorphosed granitic rock Phanerozioc Paleozoic Cambrian-Ordovician 455-540 10 5 1.28886116402e+004 4.02134258777e+006Equigranular to megacrystic, foliated to massive. Includes Toluca Granite 763Tt Coastal Plain Coastal Plain Tertiary Sedimentary Rocks Terrace deposites and upland sediment Phanerozioc Cenozoic Tertiary none none 12 8.95772351562e+003 2.76906117962e+006Gravel, clayey sand, and sand, minor iron-oxide cemented sandstone 765CZg Carolina Slate Belt Carolina Slate Belt Intrusive Rocks Intrusive Rocks Metamorphosed granitic rock Proterozoic-PhanerozoicLater Proterozoic-PaleozoicLate Proterozoic-Cambrian520-650 3,21,9,23,28,15 1 5.99433610869e+003 2.06984485464e+006Megacrystic, well foliated; locally contains hornblende. Chapel Hill, Chatham, Farrington, Meadow Flats, Mt. Moriah, Parks Crossroads plutons, and Roxboro and Vance County suites 764Zsw Blue Ridge Belt Blue Ridge Snowbird Group Sedimentary and Metamorphic RocksWading Branch Formation Proterozoic Late Proterozoic Late Proterozoic none none 20 3.18447416886e+004 2.08183538135e+007Sandy slate to coarse-grained pebbly metagraywacke with local graded bedding. Basal quartz-sericite schist or phyllite 766CZg Raleigh Belt Raleigh Belt Intrusive Rocks Intrusive Rocks Metamorphosed granitic rock Proterozoic-PhanerozoicLater Proterozoic-PaleozoicLate Proterozoic-Cambrian520-650 7 1 1.21660499119e+004 4.66499762034e+006Megacrystic, well foliated, locally contains hornblende; Vance County suite and Buckhorn granite 767Ymam Blue Ridge Belt Blue Ridge Metamorphic rocks Sedimentary and Metamorphic RocksAmphibolite Proterozoic Middle Proterozoic Middle Proterozoic none none 1 1.63569228669e+004 3.61309279157e+006Equigranular, massive to well foliated, interlayered, rarely discordant, metamorphosed intrusive and extrusive mafic rock; may include metasedimentary rock 768Qp Coastal Plain Coastal Plain Quaternary Surficial deposits Surficial deposits, undivided Phanerozioc Cenozoic Quaternary none none 14 1.30196131935e+003 1.11656729388e+005Sand, clay, gravel, and peat deposited in marine, fluvial, eolian, and lacustrine environments. Quaternary deposits not shown at altitudes greater than approximately 25 feet above mean sea level (Suffolk Scarp, in part) 769Chg Inner Piedmont, Chauga Belt, Smith River Allochthon, and Sauratown MountainChauga Belt Intrusive Rocks Intrusive Rocks Henderson Gneiss Phanerozioc Paleozoic Cambrian 524 10 4 5.18682327307e+005 9.76444937328e+008Monzonitic to granodioritic, inequigranular 1172CZmd2Carolina Slate Belt Carolina Slate Belt Metamorphic rocks Metamorphic Rocks Cid Formation Proterozoic-PhanerozoicLater Proterozoic-PaleozoicLate Proterozoic-Cambriannone none 8 3.09034635810e+005 1.26786829655e+009Cid Formation (southwest of Asheboro) 1173CZph Raleigh Belt Raleigh Belt Metamorphic rocks Metamorphic Rocks Phyllite and schist Proterozoic-PhanerozoicLater Proterozoic-PaleozoicLate Proterozoic-Cambriannone none 1 8.51044543886e+003 2.25945075602e+006Minor biotite and pyrite; includes phyllonite, sheared fine-grained metasediment, and metavolcanic rock 1174Znt Murphy Belt Murphy Belt Metamorphic rocks Metamorphic Rocks Nantahala Formation and Tusquitee Quartzite, Undiv Proterozoic Late Proterozoic Late Proterozoic none none 2 1.46949880081e+005 1.13650176436e+008Nantahala Formation: slate and metasiltstone, dark gray, laminated to thin-bedded, sulfidic; Tusquitee Quartzite: white to light yellowish gray, numerous, thin slate layers 1176TRcc Triassic Basins Durham-Sanford Subbasins Chatham Group Sedimentary Rocks Cumnock Formation Phanerozioc Mesozoic Triassic none none 2 3.08142089009e+003 5.43871434509e+005Sandstone and mudstone, gray to black; coal beds and carbonaceous shale. Grades into Pekin and Sanford formations 1177CZph Raleigh Belt Raleigh Belt Metamorphic rocks Metamorphic Rocks Phyllite and schist Proterozoic-PhanerozoicLater Proterozoic-PaleozoicLate Proterozoic-Cambriannone none 1 7.30912425941e+004 4.05907674645e+007Minor biotite and pyrite; includes phyllonite, sheared fine-grained metasediment, and metavolcanic rock 1178Qp Coastal Plain Coastal Plain Quaternary Surficial deposits Surficial deposits, undivided Phanerozioc Cenozoic Quaternary none none 14 5.23797834080e+005 9.42740858212e+008Sand, clay, gravel, and peat deposited in marine, fluvial, eolian, and lacustrine environments. Quaternary deposits not shown at altitudes greater than approximately 25 feet above mean sea level (Suffolk Scarp, in part) 1179CZms Inner Piedmont, Chauga Belt, Smith River Allochthon, and Sauratown MountainInner Piedmont Metamorphic rocks Metamorphic Rocks Mica schist Proterozoic-PhanerozoicLater Proterozoic-PaleozoicLate Proterozoic-Cambriannone none 14 2.55166679229e+004 8.77952215204e+006Garnet, staurolite, kyanite, or sillimanite occur locally; lenses and layers of quartz schist, micaceous quartzite, calc-silicate rock, biotite gneiss, amphibolite, and phyllite 1180CZq Charlotte and Milton Belts Charlotte Belt Metamorphic rocks Metamorphic Rocks Quartzite Proterozoic-PhanerozoicLater Proterozoic-PaleozoicLate Proterozoic-Cambriannone none 2 3.55482342796e+003 7.72032838457e+005Massive to well foliated; contains andalusite, kyanite, or sillimanite, chloritoid, and pyrite 1181TRcc Triassic Basins Durham-Sanford Subbasins Chatham Group Sedimentary Rocks Cumnock Formation Phanerozioc Mesozoic Triassic none none 2 3.74103520581e+004 1.34935849458e+007Sandstone and mudstone, gray to black; coal beds and carbonaceous shale. Grades into Pekin and Sanford formations 1182Jd Triassic Basins Durham-Sanford Subbasins Intrusive Rocks Intrusive Rocks Diabase Phanerozioc Mesozoic Jurassic none none 1 2.28278004306e+003 2.41329476022e+005Dikes, gray to black 1421Tecs Coastal Plain Coastal Plain Tertiary Sedimentary Rocks Spring Garden Member-Castle Hayne Formation Phanerozioc Cenozoic Tertiary none none 7 7.76949050558e+004 3.25317223602e+008Molluscan-mold limestone, indurated, very sandy. Grades downward into a calcareous sand and laterally into Comfort Member 1422ZYba Blue Ridge Belt Blue Ridge Sedimentary and Metamorphic Rocks Sedimentary and Metamorphic RocksAmphibolite Proterozoic Middle-Late Proterozoic Middle-Late Proterozoic none none 7 2.56548397765e+003 3.27481181446e+005Equigranular, massive to well foliated, interlayered, rarely discordant, metamorphosed intrusive and extrusive mafic rock; may include metasedimentary rock 1423ZYba Blue Ridge Belt Blue Ridge Sedimentary and Metamorphic Rocks Sedimentary and Metamorphic RocksAmphibolite Proterozoic Middle-Late Proterozoic Middle-Late Proterozoic none none 7 2.73712302340e+003 3.76860366173e+005Equigranular, massive to well foliated, interlayered, rarely discordant, metamorphosed intrusive and extrusive mafic rock; may include metasedimentary rock 1424CZgmsInner Piedmont, Chauga Belt, Smith River Allochthon, and Sauratown MountainInner Piedmont Metamorphic rocks Metamorphic Rocks Garnet-mica schist Proterozoic-PhanerozoicLater Proterozoic-PaleozoicLate Proterozoic-Cambriannone none 2 6.00055824965e+003 1.37942540992e+006Interlayered with amphibolite 1425ZYba Blue Ridge Belt Blue Ridge Sedimentary and Metamorphic Rocks Sedimentary and Metamorphic RocksAmphibolite Proterozoic Middle-Late Proterozoic Middle-Late Proterozoic none none 7 2.03428804282e+003 2.10308286937e+005Equigranular, massive to well foliated, interlayered, rarely discordant, metamorphosed intrusive and extrusive mafic rock; may include metasedimentary rock 1426ZYba Blue Ridge Belt Blue Ridge Sedimentary and Metamorphic Rocks Sedimentary and Metamorphic RocksAmphibolite Proterozoic Middle-Late Proterozoic Middle-Late Proterozoic none none 7 4.61135211219e+004 1.65557576596e+007Equigranular, massive to well foliated, interlayered, rarely discordant, metamorphosed intrusive and extrusive mafic rock; may include metasedimentary rock 1427Tor Coastal Plain Coastal Plain Tertiary Sedimentary Rocks River Bend Formation Phanerozioc Cenozoic Tertiary none none 8 3.47319000498e+005 1.34980506424e+009Limestone, calcarenite overlain by and intercalated with indurated, sandy, molluscan-mold limestone 1428Zata Blue Ridge Belt Blue Ridge Ashe Metamorphic Suite and Tallulah Falls FormationSedimentary and Metamorphic RocksAmphibolite Proterozoic Late Proterozoic Late Proterozoic none none 10 1.79366086266e+004 3.36834498633e+006Equigranular, massive to well foliated, interlayered, rarely discordant, metamorphosed intrusive and extrusive mafic rock; may include metasedimentary rock 1429CZam Murphy Belt Murphy Belt Intrusive Rocks Intrusive Rocks Amphibolite Proterozoic-PhanerozoicLater Proterozoic-PaleozoicLate Proterozoic-Cambriannone none 1 1.64076125828e+003 1.45460302171e+005Equigranular, massive to well foliated, dioritic to basaltic dikes and sills; variably metamorphosed 1575Qp Coastal Plain Coastal Plain Quaternary Surficial deposits Surficial deposits, undivided Phanerozioc Cenozoic Quaternary none none 14 9.63605531274e+002 6.87892989781e+004Sand, clay, gravel, and peat deposited in marine, fluvial, eolian, and lacustrine environments. Quaternary deposits not shown at altitudes greater than approximately 25 feet above mean sea level (Suffolk Scarp, in part) 1576Qp Coastal Plain Coastal Plain Quaternary Surficial deposits Surficial deposits, undivided Phanerozioc Cenozoic Quaternary none none 14 1.24354494901e+003 1.16700384028e+005Sand, clay, gravel, and peat deposited in marine, fluvial, eolian, and lacustrine environments. Quaternary deposits not shown at altitudes greater than approximately 25 feet above mean sea level (Suffolk Scarp, in part) 1577Qp Coastal Plain Coastal Plain Quaternary Surficial deposits Surficial deposits, undivided Phanerozioc Cenozoic Quaternary none none 14 1.10237409277e+003 8.46676130188e+004Sand, clay, gravel, and peat deposited in marine, fluvial, eolian, and lacustrine environments. Quaternary deposits not shown at altitudes greater than approximately 25 feet above mean sea level (Suffolk Scarp, in part) 1578Tt Coastal Plain Coastal Plain Tertiary Sedimentary Rocks Terrace deposites and upland sediment Phanerozioc Cenozoic Tertiary none none 12 4.12619524975e+004 2.65094700585e+007Gravel, clayey sand, and sand, minor iron-oxide cemented sandstone 1579CZph Carolina Slate Belt Carolina Slate Belt Metamorphic rocks Metamorphic Rocks Phyllite and schist Proterozoic-PhanerozoicLater Proterozoic-PaleozoicLate Proterozoic-Cambriannone none 1 8.98312528567e+003 2.17539881777e+006Locally laminated and pyritic; includes phyllonite, sheared fine-grained metasediment, and metavolcanic rock. In Lilesville granite aureole, includes hornfels (CZph1), and biotite gneiss and schist (CZbg) 1580Km Coastal Plain Coastal Plain Cretaceous Sedimentary Rocks Middendorf Formation Phanerozioc Mesozoic Cretaceous none none 2 9.84456877056e+003 3.44268426422e+006Sand, sandstone, and mudstone, gray to pale gray with an orange cast, mottled; clay balls and iron-cemented concretions common, beds laterally discontinous, cross-bedding common 1581Kb Coastal Plain Coastal Plain Cretaceous Sedimentary Rocks Black Creek Formation Phanerozioc Mesozoic Cretaceous none none 3 1.24384042756e+004 8.42120432728e+006Clay, gray to black, lignitic; contains thin beds and laminae of fine-grained micaceous sand and thick lenses of cross-bedded sand. Glauconitic, fossiliferous clayey sand lenses in upper part 1582Tpy Coastal Plain Coastal Plain Tertiary Sedimentary Rocks Yorktown Formation and Duplin Formation, Undivided Phanerozioc Cenozoic Tertiary none none 10 3.64261069381e+004 5.57169969226e+007Yorktown Formation: Fossiliferous clay with varying amounts of fine-grained sand, bluish gray, shell material commonly concentrated in lenses; mainly in area north of Neuse River. Duplin Formation: Shelly, medium- to coarse-grained sand, sandy marl, and limestone, bluish gray; mainly in area south of Neuse River 1583Tt Coastal Plain Coastal Plain Tertiary Sedimentary Rocks Terrace deposites and upland sediment Phanerozioc Cenozoic Tertiary none none 12 2.05236185653e+004 9.81395958503e+006Gravel, clayey sand, and sand, minor iron-oxide cemented sandstone 1584PPgb Carolina Slate Belt Carolina Slate Belt Intrusive Rocks Intrusive Rocks Pee Dee Grabbro Phanerozioc Paleozoic Pennsylvanian 314 21 6 2.32927859339e+004 1.00924438387e+007Dark gray to black, medium to fine grained, massive 1585CZph Carolina Slate Belt Carolina Slate Belt Metamorphic rocks Metamorphic Rocks Phyllite and schist Proterozoic-PhanerozoicLater Proterozoic-PaleozoicLate Proterozoic-Cambriannone none 1 7.48832485728e+003 1.46368839755e+006Locally laminated and pyritic; includes phyllonite, sheared fine-grained metasediment, and metavolcanic rock. In Lilesville granite aureole, includes hornfels (CZph1), and biotite gneiss and schist (CZbg) 1725Qp Coastal Plain Coastal Plain Quaternary Surficial deposits Surficial deposits, undivided Phanerozioc Cenozoic Quaternary none none 14 1.56812412373e+003 1.07674804137e+005Sand, clay, gravel, and peat deposited in marine, fluvial, eolian, and lacustrine environments. Quaternary deposits not shown at altitudes greater than approximately 25 feet above mean sea level (Suffolk Scarp, in part) 1726Qp Coastal Plain Coastal Plain Quaternary Surficial deposits Surficial deposits, undivided Phanerozioc Cenozoic Quaternary none none 14 5.95084860322e+003 1.00549596330e+006Sand, clay, gravel, and peat deposited in marine, fluvial, eolian, and lacustrine environments. Quaternary deposits not shown at altitudes greater than approximately 25 feet above mean sea level (Suffolk Scarp, in part) 1727Qp Coastal Plain Coastal Plain Quaternary Surficial deposits Surficial deposits, undivided Phanerozioc Cenozoic Quaternary none none 14 3.71218590153e+004 1.77684095677e+007Sand, clay, gravel, and peat deposited in marine, fluvial, eolian, and lacustrine environments. Quaternary deposits not shown at altitudes greater than approximately 25 feet above mean sea level (Suffolk Scarp, in part) 1728Qp Coastal Plain Coastal Plain Quaternary Surficial deposits Surficial deposits, undivided Phanerozioc Cenozoic Quaternary none none 14 2.03035939481e+003 1.91611437500e+005Sand, clay, gravel, and peat deposited in marine, fluvial, eolian, and lacustrine environments. Quaternary deposits not shown at altitudes greater than approximately 25 feet above mean sea level (Suffolk Scarp, in part) 1729Qp Coastal Plain Coastal Plain Quaternary Surficial deposits Surficial deposits, undivided Phanerozioc Cenozoic Quaternary none none 14 1.11086263823e+003 8.55253811063e+004Sand, clay, gravel, and peat deposited in marine, fluvial, eolian, and lacustrine environments. Quaternary deposits not shown at altitudes greater than approximately 25 feet above mean sea level (Suffolk Scarp, in part) 1730Qp Coastal Plain Coastal Plain Quaternary Surficial deposits Surficial deposits, undivided Phanerozioc Cenozoic Quaternary none none 14 3.53374939098e+003 6.73347118993e+005Sand, clay, gravel, and peat deposited in marine, fluvial, eolian, and lacustrine environments. Quaternary deposits not shown at altitudes greater than approximately 25 feet above mean sea level (Suffolk Scarp, in part) 1731Qp Coastal Plain Coastal Plain Quaternary Surficial deposits Surficial deposits, undivided Phanerozioc Cenozoic Quaternary none none 14 4.95105915216e+003 1.03070445352e+006Sand, clay, gravel, and peat deposited in marine, fluvial, eolian, and lacustrine environments. Quaternary deposits not shown at altitudes greater than approximately 25 feet above mean sea level (Suffolk Scarp, in part) 1732Qp Coastal Plain Coastal Plain Quaternary Surficial deposits Surficial deposits, undivided Phanerozioc Cenozoic Quaternary none none 14 1.86983961698e+003 1.63065369991e+005Sand, clay, gravel, and peat deposited in marine, fluvial, eolian, and lacustrine environments. Quaternary deposits not shown at altitudes greater than approximately 25 feet above mean sea level (Suffolk Scarp, in part) 1733Qp Coastal Plain Coastal Plain Quaternary Surficial deposits Surficial deposits, undivided Phanerozioc Cenozoic Quaternary none none 14 1.39184033414e+004 3.34700627856e+006Sand, clay, gravel, and peat deposited in marine, fluvial, eolian, and lacustrine environments. Quaternary deposits not shown at altitudes greater than approximately 25 feet above mean sea level (Suffolk Scarp, in part) 1734Qp Coastal Plain Coastal Plain Quaternary Surficial deposits Surficial deposits, undivided Phanerozioc Cenozoic Quaternary none none 14 3.67728021551e+003 5.76138243325e+005Sand, clay, gravel, and peat deposited in marine, fluvial, eolian, and lacustrine environments. Quaternary deposits not shown at altitudes greater than approximately 25 feet above mean sea level (Suffolk Scarp, in part) 1735Tpyw Coastal Plain Coastal Plain Tertiary Sedimentary Rocks Waccamaw Formation Phanerozioc Cenozoic Tertiary none none 11 7.11805713999e+003 3.66035067688e+006Fossiliferous sand with silt and clay, bluish-gray to tan, loosely consolidated. Straddles Pleistocene-Pliocene boundary 1736Tor Coastal Plain Coastal Plain Tertiary Sedimentary Rocks River Bend Formation Phanerozioc Cenozoic Tertiary none none 8 2.82932298533e+004 1.49714863240e+007Limestone, calcarenite overlain by and intercalated with indurated, sandy, molluscan-mold limestone 104Qp Coastal Plain Coastal Plain Quaternary Surficial deposits Surficial deposits, undivided Phanerozioc Cenozoic Quaternary none none 14 2.26993402214e+003 3.16707218538e+005Sand, clay, gravel, and peat deposited in marine, fluvial, eolian, and lacustrine environments. Quaternary deposits not shown at altitudes greater than approximately 25 feet above mean sea level (Suffolk Scarp, in part) 105Qp Coastal Plain Coastal Plain Quaternary Surficial deposits Surficial deposits, undivided Phanerozioc Cenozoic Quaternary none none 14 1.52449908727e+003 1.40538143566e+005Sand, clay, gravel, and peat deposited in marine, fluvial, eolian, and lacustrine environments. Quaternary deposits not shown at altitudes greater than approximately 25 feet above mean sea level (Suffolk Scarp, in part) 106Qp Coastal Plain Coastal Plain Quaternary Surficial deposits Surficial deposits, undivided Phanerozioc Cenozoic Quaternary none none 14 1.08195708758e+003 7.15565082812e+004Sand, clay, gravel, and peat deposited in marine, fluvial, eolian, and lacustrine environments. Quaternary deposits not shown at altitudes greater than approximately 25 feet above mean sea level (Suffolk Scarp, in part) 107PzZu Blue Ridge Belt Blue Ridge Intrusive Rocks Intrusive Rocks Meta-ultramafic rock Phanerozioc Paleozoic Permian none none 5 1.12674047940e+004 2.22244698309e+006Metamorphosed dunite, local peridotite; serpentinite, soapstone, and other altered ultramafic rock. Only larger bodies shown 108PzZu Blue Ridge Belt Blue Ridge Intrusive Rocks Intrusive Rocks Meta-ultramafic rock Phanerozioc Paleozoic Permian none none 5 1.07964297495e+004 2.33798372815e+006Metamorphosed dunite, local peridotite; serpentinite, soapstone, and other altered ultramafic rock. Only larger bodies shown 109Zg Blue Ridge Belt Blue Ridge Intrusive Rocks Intrusive Rocks Metamorphosed granitic rock Proterozoic Late Proterozoic Late Proterozoic 680-710 25,27 3 2.69541659364e+004 6.85244138685e+006Massive to foliated, locally mylonitic. Beech, Crossnore, Brown Mountain, Lansing, and other granitic bodies 110TRdc Triassic Basins Dan River Basin Dan River Group Sedimentary Rocks Cow Branch Formation Phanerozioc Mesozoic Triassic none none 6 1.13529621096e+005 3.75244835635e+007Mudstone with minor sandstone, gray, laterally-continuous bedding. Intertongues with Stoneville and Pine Hall formations 111CZfg Charlotte and Milton Belts Milton Belt Metamorphic rocks Metamorphic Rocks Felsic mica gneiss Proterozoic-PhanerozoicLater Proterozoic-PaleozoicLate Proterozoic-Cambriannone none 7 1.35478953583e+005 1.57430531257e+008Interlayered with biotite and hornblende gneiss and schist 112CZfg Charlotte and Milton Belts Milton Belt Metamorphic rocks Metamorphic Rocks Felsic mica gneiss Proterozoic-PhanerozoicLater Proterozoic-PaleozoicLate Proterozoic-Cambriannone none 7 2.75341309929e+004 1.07348936947e+007Interlayered with biotite and hornblende gneiss and schist 113Qp Coastal Plain Coastal Plain Quaternary Surficial deposits Surficial deposits, undivided Phanerozioc Cenozoic Quaternary none none 14 4.20205971961e+003 7.15347017963e+005Sand, clay, gravel, and peat deposited in marine, fluvial, eolian, and lacustrine environments. Quaternary deposits not shown at altitudes greater than approximately 25 feet above mean sea level (Suffolk Scarp, in part) 114Qp Coastal Plain Coastal Plain Quaternary Surficial deposits Surficial deposits, undivided Phanerozioc Cenozoic Quaternary none none 14 1.18108978937e+003 7.72676955345e+004Sand, clay, gravel, and peat deposited in marine, fluvial, eolian, and lacustrine environments. Quaternary deposits not shown at altitudes greater than approximately 25 feet above mean sea level (Suffolk Scarp, in part) 115Qp Coastal Plain Coastal Plain Quaternary Surficial deposits Surficial deposits, undivided Phanerozioc Cenozoic Quaternary none none 14 2.69734260973e+003 2.72260028528e+005Sand, clay, gravel, and peat deposited in marine, fluvial, eolian, and lacustrine environments. Quaternary deposits not shown at altitudes greater than approximately 25 feet above mean sea level (Suffolk Scarp, in part) 116Zg Inner Piedmont, Chauga Belt, Smith River Allochthon, and Sauratown MountainSauratown Mountains AnticlinoriumIntrusive Rocks Intrusive Rocks Metamorphosed granitic rock Proterozoic Late Proterozoic Late Proterozoic 680-710 18 1 8.87164067553e+003 4.17642066906e+006Massive to foliated, locally mylonitic 117Tt Coastal Plain Coastal Plain Tertiary Sedimentary Rocks Terrace deposites and upland sediment Phanerozioc Cenozoic Tertiary none none 12 9.21825927958e+003 2.57092098644e+006Gravel, clayey sand, and sand, minor iron-oxide cemented sandstone 118Tt Coastal Plain Coastal Plain Tertiary Sedimentary Rocks Terrace deposites and upland sediment Phanerozioc Cenozoic Tertiary none none 12 1.57403448977e+004 4.18721628084e+006Gravel, clayey sand, and sand, minor iron-oxide cemented sandstone 119PzZu Blue Ridge Belt Blue Ridge Intrusive Rocks Intrusive Rocks Meta-ultramafic rock Phanerozioc Paleozoic Permian none none 5 7.64238184889e+003 1.51057285080e+006Metamorphosed dunite, local peridotite; serpentinite, soapstone, and other altered ultramafic rock. Only larger bodies shown 120Qp Coastal Plain Coastal Plain Quaternary Surficial deposits Surficial deposits, undivided Phanerozioc Cenozoic Quaternary none none 14 8.59908523825e+002 5.26298059719e+004Sand, clay, gravel, and peat deposited in marine, fluvial, eolian, and lacustrine environments. Quaternary deposits not shown at altitudes greater than approximately 25 feet above mean sea level (Suffolk Scarp, in part) 121CZms Inner Piedmont, Chauga Belt, Smith River Allochthon, and Sauratown MountainSmith River Allochthon Metamorphic rocks Metamorphic Rocks Mica schist Proterozoic-PhanerozoicLater Proterozoic-PaleozoicLate Proterozoic-Cambriannone none 14 4.55300777737e+004 2.46545303652e+007Garnet, staurolite, kyanite, or sillimanite occur locally; lenses and layers of quartz schist, micaceous quartzite, calc-silicate rock, biotite gneiss, amphibolite, and phyllite 122PzZu Blue Ridge Belt Blue Ridge Intrusive Rocks Intrusive Rocks Meta-ultramafic rock Phanerozioc Paleozoic Permian none none 5 4.14364588953e+003 7.06508182537e+005Metamorphosed dunite, local peridotite; serpentinite, soapstone, and other altered ultramafic rock. Only larger bodies shown 86CZfg Charlotte and Milton Belts Milton Belt Metamorphic rocks Metamorphic Rocks Felsic mica gneiss Proterozoic-PhanerozoicLater Proterozoic-PaleozoicLate Proterozoic-Cambriannone none 7 5.09194940178e+004 4.43983577074e+007Interlayered with biotite and hornblende gneiss and schist 123Qp Coastal Plain Coastal Plain Quaternary Surficial deposits Surficial deposits, undivided Phanerozioc Cenozoic Quaternary none none 14 1.02658843985e+003 5.05616538314e+004Sand, clay, gravel, and peat deposited in marine, fluvial, eolian, and lacustrine environments. Quaternary deposits not shown at altitudes greater than approximately 25 feet above mean sea level (Suffolk Scarp, in part) 124CZbg Charlotte and Milton Belts Milton Belt Metamorphic rocks Metamorphic Rocks Biotite gneiss and schist Proterozoic-PhanerozoicLater Proterozoic-PaleozoicLate Proterozoic-Cambriannone none 6 1.67454916814e+004 1.01896969935e+007Inequigranular and megacrystic; abundant potassic feldspar and garnet; interlayered and gradational with calc-silicate rock, sillimanite-mica schist, mica schist, and amphibolite. Contains small masses of granitic rock 125Qp Coastal Plain Coastal Plain Quaternary Surficial deposits Surficial deposits, undivided Phanerozioc Cenozoic Quaternary none none 14 2.46463318435e+003 2.15288258363e+005Sand, clay, gravel, and peat deposited in marine, fluvial, eolian, and lacustrine environments. Quaternary deposits not shown at altitudes greater than approximately 25 feet above mean sea level (Suffolk Scarp, in part) 126Zabs Blue Ridge Belt Blue Ridge Alligator Back Formation Sedimentary and Metamorphic RocksMica schist and phyllite Proterozoic Late Proterozoic Late Proterozoic none none 17 5.22878912265e+004 1.37609439168e+007Laminated to thin layered; interlayered with minor biotite-muscovite gneiss and amphibolite 127Qp Coastal Plain Coastal Plain Quaternary Surficial deposits Surficial deposits, undivided Phanerozioc Cenozoic Quaternary none none 14 2.97249594854e+003 5.08889444216e+005Sand, clay, gravel, and peat deposited in marine, fluvial, eolian, and lacustrine environments. Quaternary deposits not shown at altitudes greater than approximately 25 feet above mean sea level (Suffolk Scarp, in part) 128Qp Coastal Plain Coastal Plain Quaternary Surficial deposits Surficial deposits, undivided Phanerozioc Cenozoic Quaternary none none 14 7.01441318231e+002 3.18370834250e+004Sand, clay, gravel, and peat deposited in marine, fluvial, eolian, and lacustrine environments. Quaternary deposits not shown at altitudes greater than approximately 25 feet above mean sea level (Suffolk Scarp, in part) 129Tt Coastal Plain Coastal Plain Tertiary Sedimentary Rocks Terrace deposites and upland sediment Phanerozioc Cenozoic Tertiary none none 12 1.10203466791e+005 5.38474970626e+007Gravel, clayey sand, and sand, minor iron-oxide cemented sandstone 130Zats Blue Ridge Belt Blue Ridge Ashe Metamorphic Suite and Tallulah Falls FormationSedimentary and Metamorphic RocksMica schist Proterozoic Late Proterozoic Late Proterozoic none none 12 2.96599375831e+004 9.14427945919e+006Locally sulfidic and graphitic; minor interlayered mica gneiss and amphibolite 131Tt Coastal Plain Coastal Plain Tertiary Sedimentary Rocks Terrace deposites and upland sediment Phanerozioc Cenozoic Tertiary none none 12 4.97681424164e+003 1.26480068768e+006Gravel, clayey sand, and sand, minor iron-oxide cemented sandstone 132Zatm Blue Ridge Belt Blue Ridge Ashe Metamorphic Suite and Tallulah Falls FormationSedimentary and Metamorphic RocksMuscovite-biotite gneiss Proterozoic Late Proterozoic Late Proterozoic none none 13 3.05925591822e+004 6.08972918530e+006Locally sulfidic; interlayered and gradational with mica schist, minor amphibolite, and hornblende gneiss 134PzZq Eastern Slate Belt Eastern Slate Belt Intrusive Rocks Intrusive Rocks Metamorphosed quartz diorite Phanerozioc Paleozoic Permian none none 4 5.41314335831e+004 2.38727084478e+007Foliated to massive 133Zatm Blue Ridge Belt Blue Ridge Ashe Metamorphic Suite and Tallulah Falls FormationSedimentary and Metamorphic RocksMuscovite-biotite gneiss Proterozoic Late Proterozoic Late Proterozoic none none 13 2.89089674489e+004 7.49450462225e+006Locally sulfidic; interlayered and gradational with mica schist, minor amphibolite, and hornblende gneiss 135CZg Carolina Slate Belt Carolina Slate Belt Intrusive Rocks Intrusive Rocks Metamorphosed granitic rock Proterozoic-PhanerozoicLater Proterozoic-PaleozoicLate Proterozoic-Cambrian520-650 3,21,9,23,28,15 1 2.40001519509e+005 2.74618435314e+008Megacrystic, well foliated; locally contains hornblende. Chapel Hill, Chatham, Farrington, Meadow Flats, Mt. Moriah, Parks Crossroads plutons, and Roxboro and Vance County suites 136CZfv Carolina Slate Belt Carolina Slate Belt Metamorphic rocks Metamorphic Rocks Felsic metavolcanic rock Proterozoic-PhanerozoicLater Proterozoic-PaleozoicLate Proterozoic-Cambriannone none 6 1.20129091702e+006 1.52023741288e+009Metamorphosed dacitic to rhyolitic flows and tuffs, light gray to greenish gray; interbedded with mafic and intermediate metavolcanic rock, meta-argillite, and metamudstone. CZfv2 - Cid Formation (southwest of Asheboro), CZfv1 - Uwharrie Formation (at Asheboro and to south) 137CZiv Eastern Slate Belt Eastern Slate Belt Metamorphic rocks Metamorphic Rocks Intermediate metavolcanic rock Proterozoic-PhanerozoicLater Proterozoic-PaleozoicLate Proterozoic-Cambriannone none 5 1.29300630325e+004 2.31733948141e+006Metamorphosed andesitic tuffs and flows, medium to dark grayish green; minor felsic and mafic metavolcanic rock 138Zabs Blue Ridge Belt Blue Ridge Alligator Back Formation Sedimentary and Metamorphic RocksMica schist and phyllite Proterozoic Late Proterozoic Late Proterozoic none none 17 1.20039830693e+004 2.47364735058e+006Laminated to thin layered; interlayered with minor biotite-muscovite gneiss and amphibolite 139Zatm Blue Ridge Belt Blue Ridge Ashe Metamorphic Suite and Tallulah Falls FormationSedimentary and Metamorphic RocksMuscovite-biotite gneiss Proterozoic Late Proterozoic Late Proterozoic none none 13 3.83778977883e+004 3.12386631470e+007Locally sulfidic; interlayered and gradational with mica schist, minor amphibolite, and hornblende gneiss 140PzZg Carolina Slate Belt Carolina Slate Belt Intrusive Rocks Intrusive Rocks Metamorphosed gabbro and diorite Phanerozioc Paleozoic Permian none none 4 9.61344660426e+003 3.53655039106e+006Foliated to masive 141Tt Coastal Plain Coastal Plain Tertiary Sedimentary Rocks Terrace deposites and upland sediment Phanerozioc Cenozoic Tertiary none none 12 1.30529334325e+004 3.62130989669e+006Gravel, clayey sand, and sand, minor iron-oxide cemented sandstone 142CZg Carolina Slate Belt Carolina Slate Belt Intrusive Rocks Intrusive Rocks Metamorphosed granitic rock Proterozoic-PhanerozoicLater Proterozoic-PaleozoicLate Proterozoic-Cambrian520-650 3,21,9,23,28,15 1 7.83922244197e+005 1.93507149827e+009Megacrystic, well foliated; locally contains hornblende. Chapel Hill, Chatham, Farrington, Meadow Flats, Mt. Moriah, Parks Crossroads plutons, and Roxboro and Vance County suites 143Tt Coastal Plain Coastal Plain Tertiary Sedimentary Rocks Terrace deposites and upland sediment Phanerozioc Cenozoic Tertiary none none 12 6.27976373493e+004 2.31688448766e+007Gravel, clayey sand, and sand, minor iron-oxide cemented sandstone 144Qp Coastal Plain Coastal Plain Quaternary Surficial deposits Surficial deposits, undivided Phanerozioc Cenozoic Quaternary none none 14 1.27773465248e+003 9.08816552844e+004Sand, clay, gravel, and peat deposited in marine, fluvial, eolian, and lacustrine environments. Quaternary deposits not shown at altitudes greater than approximately 25 feet above mean sea level (Suffolk Scarp, in part) 145Qp Coastal Plain Coastal Plain Quaternary Surficial deposits Surficial deposits, undivided Phanerozioc Cenozoic Quaternary none none 14 1.01036224891e+003 6.53881955593e+004Sand, clay, gravel, and peat deposited in marine, fluvial, eolian, and lacustrine environments. Quaternary deposits not shown at altitudes greater than approximately 25 feet above mean sea level (Suffolk Scarp, in part) 146Zaba Blue Ridge Belt Blue Ridge Alligator Back Formation Sedimentary and Metamorphic RocksAmphibolite Proterozoic Late Proterozoic Late Proterozoic none none 15 1.26149689641e+005 2.60116800377e+007Equigranular, massive to well foliated, interlayered, rarely discordant, metamorphosed intrusive and extrusive mafic rock; may include metasedimentary rock 147PzZg Carolina Slate Belt Carolina Slate Belt Intrusive Rocks Intrusive Rocks Metamorphosed gabbro and diorite Phanerozioc Paleozoic Permian none none 4 2.30623313973e+005 1.28713013355e+008Foliated to masive 148PPmg Raleigh Belt Raleigh Belt Intrusive Rocks Intrusive Rocks Foliated to massive granitic rock Phanerozioc Paleozoic Pennsylvanian-Permian 270-320 4,22 4 3.88316204226e+005 1.65620842353e+009Megacrystic to equigranular. Rolesville suite, Wise and Lemon Springs (?) intrusives 149PzZu Blue Ridge Belt Blue Ridge Intrusive Rocks Intrusive Rocks Meta-ultramafic rock Phanerozioc Paleozoic Permian none none 5 3.43489115279e+003 5.10763572452e+005Metamorphosed dunite, local peridotite; serpentinite, soapstone, and other altered ultramafic rock. Only larger bodies shown 150PzZq Eastern Slate Belt Eastern Slate Belt Intrusive Rocks Intrusive Rocks Metamorphosed quartz diorite Phanerozioc Paleozoic Permian none none 4 1.34212017304e+005 8.69273735475e+007Foliated to massive 151Qp Coastal Plain Coastal Plain Quaternary Surficial deposits Surficial deposits, undivided Phanerozioc Cenozoic Quaternary none none 14 9.34608141814e+002 6.01501221624e+004Sand, clay, gravel, and peat deposited in marine, fluvial, eolian, and lacustrine environments. Quaternary deposits not shown at altitudes greater than approximately 25 feet above mean sea level (Suffolk Scarp, in part) 152Tt Coastal Plain Coastal Plain Tertiary Sedimentary Rocks Terrace deposites and upland sediment Phanerozioc Cenozoic Tertiary none none 12 4.23649244512e+003 1.12938087907e+006Gravel, clayey sand, and sand, minor iron-oxide cemented sandstone 153CZfg Raleigh Belt Raleigh Belt Metamorphic rocks Metamorphic Rocks Felsic mica gneiss Proterozoic-PhanerozoicLater Proterozoic-PaleozoicLate Proterozoic-Cambriannone none 3 2.06131872624e+004 1.20348535103e+007Interlayered with graphitic mica schist and mica-garnet schist, commonly with kyanite; minor hornblende gneiss 154CZmd Eastern Slate Belt Eastern Slate Belt Metamorphic rocks Metamorphic Rocks Metamudstone and meta-argillite Proterozoic-PhanerozoicLater Proterozoic-PaleozoicLate Proterozoic-Cambriannone none 2 3.53241601126e+004 2.83142770782e+007Bedding plane and axial-planar cleavage common; interbedded with metasandstone, metaconglomerate, and metavolcanic rock 155Zabs Blue Ridge Belt Blue Ridge Alligator Back Formation Sedimentary and Metamorphic RocksMica schist and phyllite Proterozoic Late Proterozoic Late Proterozoic none none 17 6.40033829856e+003 1.44294980091e+006Laminated to thin layered; interlayered with minor biotite-muscovite gneiss and amphibolite 156Qp Coastal Plain Coastal Plain Quaternary Surficial deposits Surficial deposits, undivided Phanerozioc Cenozoic Quaternary none none 14 2.20958389191e+003 2.71895497862e+005Sand, clay, gravel, and peat deposited in marine, fluvial, eolian, and lacustrine environments. Quaternary deposits not shown at altitudes greater than approximately 25 feet above mean sea level (Suffolk Scarp, in part) 157Tt Coastal Plain Coastal Plain Tertiary Sedimentary Rocks Terrace deposites and upland sediment Phanerozioc Cenozoic Tertiary none none 12 1.49260533122e+004 4.50698289127e+006Gravel, clayey sand, and sand, minor iron-oxide cemented sandstone 158PzZg Carolina Slate Belt Carolina Slate Belt Intrusive Rocks Intrusive Rocks Metamorphosed gabbro and diorite Phanerozioc Paleozoic Permian none none 4 2.39529076434e+004 1.50795369705e+007Foliated to masive 159PPmg Raleigh Belt Raleigh Belt Intrusive Rocks Intrusive Rocks Foliated to massive granitic rock Phanerozioc Paleozoic Pennsylvanian-Permian 270-320 4,22 4 1.58080952074e+005 1.37221407797e+008Megacrystic to equigranular. Rolesville suite, Wise and Lemon Springs (?) intrusives 160Tt Coastal Plain Coastal Plain Tertiary Sedimentary Rocks Terrace deposites and upland sediment Phanerozioc Cenozoic Tertiary none none 12 1.39392346107e+004 4.61781552231e+006Gravel, clayey sand, and sand, minor iron-oxide cemented sandstone 161CZq Inner Piedmont, Chauga Belt, Smith River Allochthon, and Sauratown MountainSauratown Mountains AnticlinoriumMetamorphic rocks Metamorphic Rocks Quartzite Proterozoic-PhanerozoicLater Proterozoic-PaleozoicLate Proterozoic-Cambriannone none 10 5.53774163858e+004 4.71417989652e+007Interlayered with quartz-muscovite schist, contains muscovite, andalusite, kyanite, and sillimanite 162Zatm Blue Ridge Belt Blue Ridge Ashe Metamorphic Suite and Tallulah Falls FormationSedimentary and Metamorphic RocksMuscovite-biotite gneiss Proterozoic Late Proterozoic Late Proterozoic none none 13 2.18881004540e+004 5.92763083497e+006Locally sulfidic; interlayered and gradational with mica schist, minor amphibolite, and hornblende gneiss 163Qp Coastal Plain Coastal Plain Quaternary Surficial deposits Surficial deposits, undivided Phanerozioc Cenozoic Quaternary none none 14 3.21124231593e+003 3.90963185781e+005Sand, clay, gravel, and peat deposited in marine, fluvial, eolian, and lacustrine environments. Quaternary deposits not shown at altitudes greater than approximately 25 feet above mean sea level (Suffolk Scarp, in part) 164TRdc Triassic Basins Dan River Basin Dan River Group Sedimentary Rocks Cow Branch Formation Phanerozioc Mesozoic Triassic none none 6 4.28218807561e+003 6.47012890866e+005Mudstone with minor sandstone, gray, laterally-continuous bedding. Intertongues with Stoneville and Pine Hall formations 165Tt Coastal Plain Coastal Plain Tertiary Sedimentary Rocks Terrace deposites and upland sediment Phanerozioc Cenozoic Tertiary none none 12 3.75751638551e+003 6.74173382619e+005Gravel, clayey sand, and sand, minor iron-oxide cemented sandstone 166Zabs Blue Ridge Belt Blue Ridge Alligator Back Formation Sedimentary and Metamorphic RocksMica schist and phyllite Proterozoic Late Proterozoic Late Proterozoic none none 17 1.34157690876e+004 3.67436177725e+006Laminated to thin layered; interlayered with minor biotite-muscovite gneiss and amphibolite 167PzZu Blue Ridge Belt Blue Ridge Intrusive Rocks Intrusive Rocks Meta-ultramafic rock Phanerozioc Paleozoic Permian none none 5 1.62185077003e+004 3.52417739482e+006Metamorphosed dunite, local peridotite; serpentinite, soapstone, and other altered ultramafic rock. Only larger bodies shown 168PzZq Eastern Slate Belt Eastern Slate Belt Intrusive Rocks Intrusive Rocks Metamorphosed quartz diorite Phanerozioc Paleozoic Permian none none 4 2.14766969910e+004 7.03118673248e+006Foliated to massive 169PzZg Carolina Slate Belt Carolina Slate Belt Intrusive Rocks Intrusive Rocks Metamorphosed gabbro and diorite Phanerozioc Paleozoic Permian none none 4 2.15491467501e+004 1.54988465617e+007Foliated to masive 170CZph Carolina Slate Belt Carolina Slate Belt Metamorphic rocks Metamorphic Rocks Phyllite and schist Proterozoic-PhanerozoicLater Proterozoic-PaleozoicLate Proterozoic-Cambriannone none 1 7.00459405927e+004 6.72547154497e+007Locally laminated and pyritic; includes phyllonite, sheared fine-grained metasediment, and metavolcanic rock. In Lilesville granite aureole, includes hornfels (CZph1), and biotite gneiss and schist (CZbg) 171Zg Inner Piedmont, Chauga Belt, Smith River Allochthon, and Sauratown MountainSauratown Mountains AnticlinoriumIntrusive Rocks Intrusive Rocks Metamorphosed granitic rock Proterozoic Late Proterozoic Late Proterozoic 680-710 18 1 1.88877367423e+004 9.61141506096e+006Massive to foliated, locally mylonitic 172TRdc Triassic Basins Dan River Basin Dan River Group Sedimentary Rocks Cow Branch Formation Phanerozioc Mesozoic Triassic none none 6 4.18623579572e+003 6.36943252886e+005Mudstone with minor sandstone, gray, laterally-continuous bedding. Intertongues with Stoneville and Pine Hall formations 173Qp Coastal Plain Coastal Plain Quaternary Surficial deposits Surficial deposits, undivided Phanerozioc Cenozoic Quaternary none none 14 1.31324859631e+003 7.70727146032e+004Sand, clay, gravel, and peat deposited in marine, fluvial, eolian, and lacustrine environments. Quaternary deposits not shown at altitudes greater than approximately 25 feet above mean sea level (Suffolk Scarp, in part) 174TRdc Triassic Basins Dan River Basin Dan River Group Sedimentary Rocks Cow Branch Formation Phanerozioc Mesozoic Triassic none none 6 5.05514315774e+003 8.02845747648e+005Mudstone with minor sandstone, gray, laterally-continuous bedding. Intertongues with Stoneville and Pine Hall formations 175PPg Charlotte and Milton Belts Charlotte Belt Intrusive Rocks Intrusive Rocks Granitic rock Phanerozioc Paleozoic Pennsylvanian-Permian 265-325 11,9 11 4.67911191140e+005 1.35308669647e+009Megacrystic to equigranular. Churchland Plutonic Suite (Western group) - Churchland, Landis, and Mooresville intrusives 176PzZu Blue Ridge Belt Blue Ridge Intrusive Rocks Intrusive Rocks Meta-ultramafic rock Phanerozioc Paleozoic Permian none none 5 2.77352918717e+003 4.32104607551e+005Metamorphosed dunite, local peridotite; serpentinite, soapstone, and other altered ultramafic rock. Only larger bodies shown 177Tt Coastal Plain Coastal Plain Tertiary Sedimentary Rocks Terrace deposites and upland sediment Phanerozioc Cenozoic Tertiary none none 12 2.39156940511e+003 3.05633294006e+005Gravel, clayey sand, and sand, minor iron-oxide cemented sandstone 178Yg Inner Piedmont, Chauga Belt, Smith River Allochthon, and Sauratown MountainSauratown Mountains AnticlinoriumMetamorphic rocks Metamorphic Rocks Granitic gneiss Proterozoic Middle Proterozoic Middle Proterozoic 1192 27 1 6.52578692404e+004 4.29765585377e+007Megacrystic, in places contains amphibolite 179Zg Blue Ridge Belt Blue Ridge Intrusive Rocks Intrusive Rocks Metamorphosed granitic rock Proterozoic Late Proterozoic Late Proterozoic 680-710 25,27 3 3.87666953010e+003 7.80230875326e+005Massive to foliated, locally mylonitic. Beech, Crossnore, Brown Mountain, Lansing, and other granitic bodies 180Qp Coastal Plain Coastal Plain Quaternary Surficial deposits Surficial deposits, undivided Phanerozioc Cenozoic Quaternary none none 14 1.13948113027e+003 8.97930818468e+004Sand, clay, gravel, and peat deposited in marine, fluvial, eolian, and lacustrine environments. Quaternary deposits not shown at altitudes greater than approximately 25 feet above mean sea level (Suffolk Scarp, in part) 181Dqd Blue Ridge Belt Blue Ridge Intrusive Rocks Intrusive Rocks Quartz diorite to granodiorite Phanerozioc Paleozoic Devonian 390 4 7 3.47928877968e+004 8.02167447729e+007Contains biotite, muscovite, and xenocrysts. Includes Whiteside Mountain, Stone Mountain, Mount Airy, Spruce Pine, and other smaller plutons 182Tt Coastal Plain Coastal Plain Tertiary Sedimentary Rocks Terrace deposites and upland sediment Phanerozioc Cenozoic Tertiary none none 12 1.01624652112e+004 3.06040617320e+006Gravel, clayey sand, and sand, minor iron-oxide cemented sandstone 183Zg Inner Piedmont, Chauga Belt, Smith River Allochthon, and Sauratown MountainSauratown Mountains AnticlinoriumIntrusive Rocks Intrusive Rocks Metamorphosed granitic rock Proterozoic Late Proterozoic Late Proterozoic 680-710 18 1 1.82681651847e+004 8.09177512396e+006Massive to foliated, locally mylonitic 184CZg Charlotte and Milton Belts Milton Belt Intrusive Rocks Intrusive Rocks Metamorphosed granitic rock Proterozoic-PhanerozoicLater Proterozoic-PaleozoicLate Proterozoic-Cambriannone none 1 1.39479008691e+004 1.19479339098e+007Megacrystic, well foliated; locally contains hornblende 185CZms Inner Piedmont, Chauga Belt, Smith River Allochthon, and Sauratown MountainSauratown Mountains AnticlinoriumMetamorphic rocks Metamorphic Rocks Mica schist Proterozoic-PhanerozoicLater Proterozoic-PaleozoicLate Proterozoic-Cambriannone none 14 4.80269457795e+004 1.24401647390e+007Garnet, staurolite, kyanite, or sillimanite occur locally; lenses and layers of quartz schist, micaceous quartzite, calc-silicate rock, biotite gneiss, amphibolite, and phyllite 186CZma1Inner Piedmont, Chauga Belt, Smith River Allochthon, and Sauratown MountainSauratown Mountains AnticlinoriumMetamorphic rocks Metamorphic Rocks Metagraywacke, amphibolite, and kyanite schist Proterozoic-PhanerozoicLater Proterozoic-PaleozoicLate Proterozoic-Cambriannone none 8 1.42285366748e+005 1.14069441260e+008Metagraywacke (biotite gneiss) interlayered and gradational with amphibolite and kyanite schist; minor ultramafic and granitic rock 187Zatm Blue Ridge Belt Blue Ridge Ashe Metamorphic Suite and Tallulah Falls FormationSedimentary and Metamorphic RocksMuscovite-biotite gneiss Proterozoic Late Proterozoic Late Proterozoic none none 13 1.11374776531e+004 2.24161027168e+006Locally sulfidic; interlayered and gradational with mica schist, minor amphibolite, and hornblende gneiss 188Zatm Blue Ridge Belt Blue Ridge Ashe Metamorphic Suite and Tallulah Falls FormationSedimentary and Metamorphic RocksMuscovite-biotite gneiss Proterozoic Late Proterozoic Late Proterozoic none none 13 5.05593935161e+003 1.00844971839e+006Locally sulfidic; interlayered and gradational with mica schist, minor amphibolite, and hornblende gneiss 189Tt Coastal Plain Coastal Plain Tertiary Sedimentary Rocks Terrace deposites and upland sediment Phanerozioc Cenozoic Tertiary none none 12 1.26243465690e+004 4.05184433677e+006Gravel, clayey sand, and sand, minor iron-oxide cemented sandstone 190TRdp Triassic Basins Dan River Basin Dan River Group Sedimentary Rocks Pine Hall Formation Phanerozioc Mesozoic Triassic none none 5 7.37298419591e+004 2.13799774153e+007Sandstone, mudstone, and conglomerate, yellowish orange to brown 191Zatm Blue Ridge Belt Blue Ridge Ashe Metamorphic Suite and Tallulah Falls FormationSedimentary and Metamorphic RocksMuscovite-biotite gneiss Proterozoic Late Proterozoic Late Proterozoic none none 13 1.72082840288e+004 3.57947558846e+006Locally sulfidic; interlayered and gradational with mica schist, minor amphibolite, and hornblende gneiss 192CZfv Carolina Slate Belt Carolina Slate Belt Metamorphic rocks Metamorphic Rocks Felsic metavolcanic rock Proterozoic-PhanerozoicLater Proterozoic-PaleozoicLate Proterozoic-Cambriannone none 6 4.88310970989e+004 2.62784479554e+007Metamorphosed dacitic to rhyolitic flows and tuffs, light gray to greenish gray; interbedded with mafic and intermediate metavolcanic rock, meta-argillite, and metamudstone. CZfv2 - Cid Formation (southwest of Asheboro), CZfv1 - Uwharrie Formation (at Asheboro and to south) 193Zatm Blue Ridge Belt Blue Ridge Ashe Metamorphic Suite and Tallulah Falls FormationSedimentary and Metamorphic RocksMuscovite-biotite gneiss Proterozoic Late Proterozoic Late Proterozoic none none 13 1.59544284056e+004 2.52089363014e+006Locally sulfidic; interlayered and gradational with mica schist, minor amphibolite, and hornblende gneiss 194Ccl Blue Ridge Belt Blue Ridge Chilhowee Group Sedimentary and Metamorphic RocksLower Chilhowee Group Phanerozioc Paleozoic Cambrian none none 37 2.80231834661e+004 9.39261734622e+006Feldspathic arenite, white to yellowish gray. Minor silty shale, feldspathic siltstone, and conglomerate in lower part. Includes Unicoi Formation of Hot Springs window 195CZbg Raleigh Belt Raleigh Belt Metamorphic rocks Metamorphic Rocks Biotite gneiss and schist Proterozoic-PhanerozoicLater Proterozoic-PaleozoicLate Proterozoic-Cambriannone none 6 1.10595804300e+005 1.48427834835e+008Inequigranular and megacrystic; in places contains garnet; interlayered and gradational with mica schist and amphibolite; includes small masses of granitic rock 196PzZq Eastern Slate Belt Eastern Slate Belt Intrusive Rocks Intrusive Rocks Metamorphosed quartz diorite Phanerozioc Paleozoic Permian 270-320 8 4 1.65934361376e+004 3.58654129912e+006Foliated to massive 197CZfv Carolina Slate Belt Carolina Slate Belt Metamorphic rocks Metamorphic Rocks Felsic metavolcanic rock Proterozoic-PhanerozoicLater Proterozoic-PaleozoicLate Proterozoic-Cambriannone none 6 8.32915624412e+003 2.01760134111e+006Metamorphosed dacitic to rhyolitic flows and tuffs, light gray to greenish gray; interbedded with mafic and intermediate metavolcanic rock, meta-argillite, and metamudstone. CZfv2 - Cid Formation (southwest of Asheboro), CZfv1 - Uwharrie Formation (at Asheboro and to south) 198Tpy Coastal Plain Coastal Plain Tertiary Sedimentary Rocks Yorktown Formation and Duplin Formation, Undivided Phanerozioc Cenozoic Tertiary none none 10 2.14183635440e+003 2.79392467919e+005Yorktown Formation: Fossiliferous clay with varying amounts of fine-grained sand, bluish gray, shell material commonly concentrated in lenses; mainly in area north of Neuse River. Duplin Formation: Shelly, medium- to coarse-grained sand, sandy marl, and limestone, bluish gray; mainly in area south of Neuse River 199Ygg Blue Ridge Belt Blue Ridge Metamorphic rocks Sedimentary and Metamorphic RocksGranodiorite gneiss Proterozoic Middle Proterozoic Middle Proterozoic 1175 2 6 5.41736766447e+004 8.61863926469e+007Greenish gray to pinkish gray, porphyroclastic to mylonitic; epidote, sericite, and chlorite common 200PzZg Carolina Slate Belt Carolina Slate Belt Intrusive Rocks Intrusive Rocks Metamorphosed gabbro and diorite Phanerozioc Paleozoic Permian none none 4 2.73609082667e+004 1.76710509101e+007Foliated to masive 201Qp Coastal Plain Coastal Plain Quaternary Surficial deposits Surficial deposits, undivided Phanerozioc Cenozoic Quaternary none none 14 1.45158572580e+003 1.40362624853e+005Sand, clay, gravel, and peat deposited in marine, fluvial, eolian, and lacustrine environments. Quaternary deposits not shown at altitudes greater than approximately 25 feet above mean sea level (Suffolk Scarp, in part) 202Ybgg Blue Ridge Belt Blue Ridge Sedimentary and Metamorphic Rocks Sedimentary and Metamorphic RocksBiotite granitic gneiss Proterozoic Middle Proterozoic Middle Proterozoic 950-125014 4 3.22150273210e+005 3.78306363687e+008Pinkish gray to light gray, massive to well foliated, granitic to quartz monzonitic; includes variably mylonitized orthogneiss and paragneiss, interlayered amphibolite, calc-silicate rock, and marble. Includes granites of Bryson City area, Straight Fork window, and Elk Park Plutonic Suite 203Tt Coastal Plain Coastal Plain Tertiary Sedimentary Rocks Terrace deposites and upland sediment Phanerozioc Cenozoic Tertiary none none 12 1.98591999623e+004 6.91518052149e+006Gravel, clayey sand, and sand, minor iron-oxide cemented sandstone 204Qp Coastal Plain Coastal Plain Quaternary Surficial deposits Surficial deposits, undivided Phanerozioc Cenozoic Quaternary none none 14 1.30307999256e+003 1.06079844662e+005Sand, clay, gravel, and peat deposited in marine, fluvial, eolian, and lacustrine environments. Quaternary deposits not shown at altitudes greater than approximately 25 feet above mean sea level (Suffolk Scarp, in part) 205Tt Coastal Plain Coastal Plain Tertiary Sedimentary Rocks Terrace deposites and upland sediment Phanerozioc Cenozoic Tertiary none none 12 7.31133043532e+004 3.71849907879e+007Gravel, clayey sand, and sand, minor iron-oxide cemented sandstone 206Zatm Blue Ridge Belt Blue Ridge Ashe Metamorphic Suite and Tallulah Falls FormationSedimentary and Metamorphic RocksMuscovite-biotite gneiss Proterozoic Late Proterozoic Late Proterozoic none none 13 6.30710991216e+003 8.58815420309e+005Locally sulfidic; interlayered and gradational with mica schist, minor amphibolite, and hornblende gneiss 207PzZu Carolina Slate Belt Carolina Slate Belt Intrusive Rocks Intrusive Rocks Meta-ultramafic rock Phanerozioc Paleozoic Permian none none 2 7.28076286761e+003 2.01556702794e+006Metamorphosed dunite, local peridotite; serpentinite, soapstone, and other altered ultramafic rock. Only larger bodies shown 208Zg Inner Piedmont, Chauga Belt, Smith River Allochthon, and Sauratown MountainSauratown Mountains AnticlinoriumIntrusive Rocks Intrusive Rocks Metamorphosed granitic rock Proterozoic Late Proterozoic Late Proterozoic 680-710 18 1 2.14333492200e+004 1.05213565121e+007Massive to foliated, locally mylonitic 209Qp Coastal Plain Coastal Plain Quaternary Surficial deposits Surficial deposits, undivided Phanerozioc Cenozoic Quaternary none none 14 1.53208272741e+003 1.50541693181e+005Sand, clay, gravel, and peat deposited in marine, fluvial, eolian, and lacustrine environments. Quaternary deposits not shown at altitudes greater than approximately 25 feet above mean sea level (Suffolk Scarp, in part) 210Qp Coastal Plain Coastal Plain Quaternary Surficial deposits Surficial deposits, undivided Phanerozioc Cenozoic Quaternary none none 14 4.03488844231e+003 7.51156977503e+005Sand, clay, gravel, and peat deposited in marine, fluvial, eolian, and lacustrine environments. Quaternary deposits not shown at altitudes greater than approximately 25 feet above mean sea level (Suffolk Scarp, in part) 211PzZu Blue Ridge Belt Blue Ridge Intrusive Rocks Intrusive Rocks Meta-ultramafic rock Phanerozioc Paleozoic Permian none none 5 1.72128686990e+004 5.13780952718e+006Metamorphosed dunite, local peridotite; serpentinite, soapstone, and other altered ultramafic rock. Only larger bodies shown 357PzZu Inner Piedmont, Chauga Belt, Smith River Allochthon, and Sauratown MountainInner Piedmont Intrusive Rocks Intrusive Rocks Meta-ultramafic rock Phanerozioc Paleozoic Permian none none 2 2.09490693565e+003 2.95213850807e+005Metamorphosed dunite, local peridotite; serpentinite, soapstone, and other altered ultramafic rock. Only larger bodies shown 358CZiv Carolina Slate Belt Carolina Slate Belt Metamorphic rocks Metamorphic Rocks Intermediate metavolcanic rock Proterozoic-PhanerozoicLater Proterozoic-PaleozoicLate Proterozoic-Cambriannone none 5 3.58696423594e+004 3.53088629523e+007Metamorphosed andesitic tuffs and flows, medium to dark grayish green; minor felsic and mafic metavolcanic rock 1842CZmd Eastern Slate Belt Eastern Slate Belt Metamorphic rocks Metamorphic Rocks Metamudstone and meta-argillite Proterozoic-PhanerozoicLater Proterozoic-PaleozoicLate Proterozoic-Cambriannone none 2 1.39429839217e+003 8.60583494188e+004Bedding plane and axial-planar cleavage common; interbedded with metasandstone, metaconglomerate, and metavolcanic rock 359Tt Coastal Plain Coastal Plain Tertiary Sedimentary Rocks Terrace deposites and upland sediment Phanerozioc Cenozoic Tertiary none none 12 3.07468974870e+003 5.97491912369e+005Gravel, clayey sand, and sand, minor iron-oxide cemented sandstone 360PzZu Eastern Slate Belt Eastern Slate Belt Intrusive Rocks Intrusive Rocks Meta-ultramafic rock Phanerozioc Paleozoic Permian none none 2 4.47763265077e+003 8.72570931947e+005Metamorphosed dunite, local peridotite; serpentinite, soapstone, and other altered ultramafic rock. Only larger bodies shown 361PPg Raleigh Belt Raleigh Belt Intrusive Rocks Intrusive Rocks Granitic rock Phanerozioc Paleozoic Pennsylvanian-Permian 265-325 11 5 1.03216467274e+005 3.03896640808e+008Megacrystic to equigranular. Castalia and Wilton intrusives 362PzZg Carolina Slate Belt Carolina Slate Belt Intrusive Rocks Intrusive Rocks Metamorphosed gabbro and diorite Phanerozioc Paleozoic Permian none none 4 1.16334423892e+004 5.32456978691e+006Foliated to masive 363Ybrg Grandfather Mountain Window Grandfather Mountain Window Metamorphic rocks Metamorphic Rocks Blowing Rock Gneiss Proterozoic Middle Proterozoic Middle Proterozoic 1000 10 2 1.00866481199e+005 1.16977719944e+008Abundant white potassic feldspar megacrysts in finely banded biotite schist, locally calcareous; interlayered with quartz-feldspar schist, calcareous biotite schist phyllite, black slate, calcareous quartzite, sulfidic greenstone, and siliceous tuff 364PzZg Carolina Slate Belt Carolina Slate Belt Intrusive Rocks Intrusive Rocks Metamorphosed gabbro and diorite Phanerozioc Paleozoic Permian none none 4 4.31014614143e+004 3.97745031454e+007Foliated to masive 365CZiv Carolina Slate Belt Carolina Slate Belt Metamorphic rocks Metamorphic Rocks Intermediate metavolcanic rock Proterozoic-PhanerozoicLater Proterozoic-PaleozoicLate Proterozoic-Cambriannone none 5 1.11203878335e+005 4.91119462848e+007Metamorphosed andesitic tuffs and flows, medium to dark grayish green; minor felsic and mafic metavolcanic rock 645Ybrg Grandfather Mountain Window Grandfather Mountain Window Metamorphic rocks Metamorphic Rocks Blowing Rock Gneiss Proterozoic Middle Proterozoic Middle Proterozoic 1000 10 2 5.12245351265e+003 5.51827139217e+005Abundant white potassic feldspar megacrysts in finely banded biotite schist, locally calcareous; interlayered with quartz-feldspar schist, calcareous biotite schist phyllite, black slate, calcareous quartzite, sulfidic greenstone, and siliceous tuff 646Ccl Blue Ridge Belt Hot Springs Window Chilhowee Group Sedimentary and Metamorphic RocksLower Chilhowee Group Phanerozioc Paleozoic Cambrian none none 37 3.01916094021e+004 1.28652726239e+007Feldspathic arenite, white to yellowish gray. Minor silty shale, feldspathic siltstone, and conglomerate in lower part. Includes Unicoi Formation of Hot Springs window 647Qp Coastal Plain Coastal Plain Quaternary Surficial deposits Surficial deposits, undivided Phanerozioc Cenozoic Quaternary none none 14 1.92008373590e+003 2.56206641691e+005Sand, clay, gravel, and peat deposited in marine, fluvial, eolian, and lacustrine environments. Quaternary deposits not shown at altitudes greater than approximately 25 feet above mean sea level (Suffolk Scarp, in part) 648Dqd Blue Ridge Belt Blue Ridge Intrusive Rocks Intrusive Rocks Quartz diorite to granodiorite Phanerozioc Paleozoic Devonian 390 4 7 4.56580103946e+003 5.88062893172e+005Contains biotite, muscovite, and xenocrysts. Includes Whiteside Mountain, Stone Mountain, Mount Airy, Spruce Pine, and other smaller plutons 1846Tpy Coastal Plain Coastal Plain Tertiary Sedimentary Rocks Yorktown Formation and Duplin Formation, Undivided Phanerozioc Cenozoic Tertiary none none 10 8.24618617489e+003 3.20385116417e+006Yorktown Formation: Fossiliferous clay with varying amounts of fine-grained sand, bluish gray, shell material commonly concentrated in lenses; mainly in area north of Neuse River. Duplin Formation: Shelly, medium- to coarse-grained sand, sandy marl, and limestone, bluish gray; mainly in area south of Neuse River 649PzZu Raleigh Belt Raleigh Belt Intrusive Rocks Intrusive Rocks Meta-ultramafic rock Phanerozioc Paleozoic Permian none none 2 1.85746156682e+003 1.60996208113e+005Metamorphosed dunite, local peridotite; serpentinite, soapstone, and other altered ultramafic rock. Only larger bodies shown 650CZms Inner Piedmont, Chauga Belt, Smith River Allochthon, and Sauratown MountainInner Piedmont Metamorphic rocks Metamorphic Rocks Mica schist Proterozoic-PhanerozoicLater Proterozoic-PaleozoicLate Proterozoic-Cambriannone none 14 2.93311792349e+004 6.73517244273e+006Garnet, staurolite, kyanite, or sillimanite occur locally; lenses and layers of quartz schist, micaceous quartzite, calc-silicate rock, biotite gneiss, amphibolite, and phyllite 651CZfv1Carolina Slate Belt Carolina Slate Belt Metamorphic rocks Metamorphic Rocks Cid Formation Proterozoic-PhanerozoicLater Proterozoic-PaleozoicLate Proterozoic-Cambriannone none 6 4.22326387600e+005 1.04108245101e+009Uwharrie Formation (at Asheboro and to south) 652PzZu Inner Piedmont, Chauga Belt, Smith River Allochthon, and Sauratown MountainInner Piedmont Intrusive Rocks Intrusive Rocks Meta-ultramafic rock Phanerozioc Paleozoic Permian none none 2 2.05193019705e+004 1.48106171427e+007Metamorphosed dunite, local peridotite; serpentinite, soapstone, and other altered ultramafic rock. Only larger bodies shown 653CZg Charlotte and Milton Belts Charlotte Belt Intrusive Rocks Intrusive Rocks Metamorphosed granitic rock Proterozoic-PhanerozoicLater Proterozoic-PaleozoicLate Proterozoic-Cambriannone none 1 2.93962722265e+004 1.69135353642e+007Megacrystic, well foliated; locally contains hornblende 1430Zman Murphy Belt Murphy Belt Metamorphic rocks Metamorphic Rocks Murphy Marble, Andrews Formation, and Nottely Quartzite, undividedProterozoic Late Proterozoic Late Proterozoic none none 4 3.56186644774e+004 9.03411747904e+006Murphy Marble: calcareous to dolomitic; Andrews Formation: calcarous cross-biotite schist; Nottely Quartzite: meta-orthoquartzite with slate 1431Tpy Coastal Plain Coastal Plain Tertiary Sedimentary Rocks Yorktown Formation and Duplin Formation, Undivided Phanerozioc Cenozoic Tertiary none none 10 8.95927394335e+003 1.92934739330e+006Yorktown Formation: Fossiliferous clay with varying amounts of fine-grained sand, bluish gray, shell material commonly concentrated in lenses; mainly in area north of Neuse River. Duplin Formation: Shelly, medium- to coarse-grained sand, sandy marl, and limestone, bluish gray; mainly in area south of Neuse River 1432PzZu Blue Ridge Belt Blue Ridge Intrusive Rocks Intrusive Rocks Meta-ultramafic rock Phanerozioc Paleozoic Permian none none 5 2.16831830929e+003 2.63397866482e+005Metamorphosed dunite, local peridotite; serpentinite, soapstone, and other altered ultramafic rock. Only larger bodies shown 1433TRc Triassic Basins Durham-Sanford Subbasins Newark Supergroup Sedimentary Rocks Chatham Group, Undivided Phanerozioc Mesozoic Triassic none none 4 2.03767653540e+004 6.15999907636e+006Conglomerate, fanglomerate, sandstone, and mudstone. Conglomerate and fanglomerate shown by pattern 1434Zch Blue Ridge Belt Blue Ridge Ocoee Supergroup Sedimentary and Metamorphic RocksCopper Hill Formation Proterozoic Late Proterozoic Late Proterozoic none none 30 2.52595993571e+004 1.13727142920e+007Metagraywacke, massive, graded bedding common; includes dark-gray slate, mica schist, and nodular calcsilicate rock 1435PzZu Blue Ridge Belt Blue Ridge Intrusive Rocks Intrusive Rocks Meta-ultramafic rock Phanerozioc Paleozoic Permian none none 5 1.75156456115e+003 1.90241616919e+005Metamorphosed dunite, local peridotite; serpentinite, soapstone, and other altered ultramafic rock. Only larger bodies shown 1436CZmd Carolina Slate Belt Carolina Slate Belt Metamorphic rocks Metamorphic Rocks Metamudstone and meta-argillite Proterozoic-PhanerozoicLater Proterozoic-PaleozoicLate Proterozoic-Cambriannone none 8 1.08967135045e+005 1.32908367847e+008Thin to thick bedded; bedding plane and axial-planar cleavage common; interbedded with metasandstone, metaconglomerate, and metavolcanic rock. CZmd3 - Floyd Church Formation, CZmd2 - Cid Formation, CZmd1 - Tillery Formation: (southwest of Asheboro) 1437Zco Blue Ridge Belt Blue Ridge Metamorphic rocks Sedimentary and Metamorphic RocksCoweeta Group Proterozoic Late Proterozoic Late Proterozoic none none 9 7.00810596243e+004 7.22142905445e+007Quartz dioritic gneiss, feldspar-quartz-biotite gneiss, metasandstone and quartzite, alumino-silicate schist, garnetiferous biotite gneiss, and minor amphibolite. Quartz dioritic gneiss predominant 1438Zata Blue Ridge Belt Blue Ridge Ashe Metamorphic Suite and Tallulah Falls FormationSedimentary and Metamorphic RocksAmphibolite Proterozoic Late Proterozoic Late Proterozoic none none 10 2.99696412303e+004 4.50783586290e+006Equigranular, massive to well foliated, interlayered, rarely discordant, metamorphosed intrusive and extrusive mafic rock; may include metasedimentary rock 1439ZYba Blue Ridge Belt Blue Ridge Sedimentary and Metamorphic Rocks Sedimentary and Metamorphic RocksAmphibolite Proterozoic Middle-Late Proterozoic Middle-Late Proterozoic none none 7 3.81835879055e+004 1.52842231661e+007Equigranular, massive to well foliated, interlayered, rarely discordant, metamorphosed intrusive and extrusive mafic rock; may include metasedimentary rock 1681Qp Coastal Plain Coastal Plain Quaternary Surficial deposits Surficial deposits, undivided Phanerozioc Cenozoic Quaternary none none 14 6.90930422401e+003 9.37509516069e+005Sand, clay, gravel, and peat deposited in marine, fluvial, eolian, and lacustrine environments. Quaternary deposits not shown at altitudes greater than approximately 25 feet above mean sea level (Suffolk Scarp, in part) 1682Qp Coastal Plain Coastal Plain Quaternary Surficial deposits Surficial deposits, undivided Phanerozioc Cenozoic Quaternary none none 14 1.49806464373e+003 1.25923533107e+005Sand, clay, gravel, and peat deposited in marine, fluvial, eolian, and lacustrine environments. Quaternary deposits not shown at altitudes greater than approximately 25 feet above mean sea level (Suffolk Scarp, in part) 1683Qp Coastal Plain Coastal Plain Quaternary Surficial deposits Surficial deposits, undivided Phanerozioc Cenozoic Quaternary none none 14 1.89885227127e+003 1.62096780841e+005Sand, clay, gravel, and peat deposited in marine, fluvial, eolian, and lacustrine environments. Quaternary deposits not shown at altitudes greater than approximately 25 feet above mean sea level (Suffolk Scarp, in part) 1684Qp Coastal Plain Coastal Plain Quaternary Surficial deposits Surficial deposits, undivided Phanerozioc Cenozoic Quaternary none none 14 2.90965063310e+003 2.72315812628e+005Sand, clay, gravel, and peat deposited in marine, fluvial, eolian, and lacustrine environments. Quaternary deposits not shown at altitudes greater than approximately 25 feet above mean sea level (Suffolk Scarp, in part) 1685Qp Coastal Plain Coastal Plain Quaternary Surficial deposits Surficial deposits, undivided Phanerozioc Cenozoic Quaternary none none 14 1.52278915922e+003 1.50963893460e+005Sand, clay, gravel, and peat deposited in marine, fluvial, eolian, and lacustrine environments. Quaternary deposits not shown at altitudes greater than approximately 25 feet above mean sea level (Suffolk Scarp, in part) 1686Tpy Coastal Plain Coastal Plain Tertiary Sedimentary Rocks Yorktown Formation and Duplin Formation, Undivided Phanerozioc Cenozoic Tertiary none none 10 2.79002905975e+004 5.63188083705e+007Yorktown Formation: Fossiliferous clay with varying amounts of fine-grained sand, bluish gray, shell material commonly concentrated in lenses; mainly in area north of Neuse River. Duplin Formation: Shelly, medium- to coarse-grained sand, sandy marl, and limestone, bluish gray; mainly in area south of Neuse River 1687Qp Coastal Plain Coastal Plain Quaternary Surficial deposits Surficial deposits, undivided Phanerozioc Cenozoic Quaternary none none 14 1.43501474865e+003 1.43064785975e+005Sand, clay, gravel, and peat deposited in marine, fluvial, eolian, and lacustrine environments. Quaternary deposits not shown at altitudes greater than approximately 25 feet above mean sea level (Suffolk Scarp, in part) 1688Qp Coastal Plain Coastal Plain Quaternary Surficial deposits Surficial deposits, undivided Phanerozioc Cenozoic Quaternary none none 14 1.39107245168e+003 1.18012752785e+005Sand, clay, gravel, and peat deposited in marine, fluvial, eolian, and lacustrine environments. Quaternary deposits not shown at altitudes greater than approximately 25 feet above mean sea level (Suffolk Scarp, in part) 1689Qp Coastal Plain Coastal Plain Quaternary Surficial deposits Surficial deposits, undivided Phanerozioc Cenozoic Quaternary none none 14 1.74650886023e+003 1.44091237856e+005Sand, clay, gravel, and peat deposited in marine, fluvial, eolian, and lacustrine environments. Quaternary deposits not shown at altitudes greater than approximately 25 feet above mean sea level (Suffolk Scarp, in part) 1690Qp Coastal Plain Coastal Plain Quaternary Surficial deposits Surficial deposits, undivided Phanerozioc Cenozoic Quaternary none none 14 2.34445611265e+003 2.23977968297e+005Sand, clay, gravel, and peat deposited in marine, fluvial, eolian, and lacustrine environments. Quaternary deposits not shown at altitudes greater than approximately 25 feet above mean sea level (Suffolk Scarp, in part) 1691Tpy Coastal Plain Coastal Plain Tertiary Sedimentary Rocks Yorktown Formation and Duplin Formation, Undivided Phanerozioc Cenozoic Tertiary none none 10 1.59853791797e+003 1.81529208047e+005Yorktown Formation: Fossiliferous clay with varying amounts of fine-grained sand, bluish gray, shell material commonly concentrated in lenses; mainly in area north of Neuse River. Duplin Formation: Shelly, medium- to coarse-grained sand, sandy marl, and limestone, bluish gray; mainly in area south of Neuse River 212CZam Raleigh Belt Raleigh Belt Intrusive Rocks Intrusive Rocks Amphibolite Proterozoic-PhanerozoicLater Proterozoic-PaleozoicLate Proterozoic-Cambriannone none 7 9.76046815592e+003 2.18386221063e+006Metamorphosed mafic extrusive and intrusive rock; includes hornblende gneiss, thin layers of mica schist, and small nonlayered masses of metadiorite and metagabbro 213Qp Coastal Plain Coastal Plain Quaternary Surficial deposits Surficial deposits, undivided Phanerozioc Cenozoic Quaternary none none 14 6.97846193000e+003 2.24773946895e+006Sand, clay, gravel, and peat deposited in marine, fluvial, eolian, and lacustrine environments. Quaternary deposits not shown at altitudes greater than approximately 25 feet above mean sea level (Suffolk Scarp, in part) 214CZq Inner Piedmont, Chauga Belt, Smith River Allochthon, and Sauratown MountainSauratown Mountains AnticlinoriumMetamorphic rocks Metamorphic Rocks Quartzite Proterozoic-PhanerozoicLater Proterozoic-PaleozoicLate Proterozoic-Cambriannone none 10 9.88601186096e+003 2.22011853480e+006Interlayered with quartz-muscovite schist, contains muscovite, andalusite, kyanite, and sillimanite 215PPmg Eastern Slate Belt Eastern Slate Belt Intrusive Rocks Intrusive Rocks Foliated to massive granitic rock Phanerozioc Paleozoic Pennsylvanian-Permian 270-320 8 4 2.37429020311e+003 3.71986194066e+005Megacrystic to equigranular. Butterwood Creek intrusive and Rocky Mount intrusive suite 216Kc Coastal Plain Coastal Plain Cretaceous Sedimentary Rocks Cape Fear Formation Phanerozioc Mesozoic Cretaceous none none 1 1.05441526448e+005 2.51043393051e+008Sandstone and sandy mudstone, yellowish gray to bluish gray, mottled red to yellowish orange, indurated, graded and laterally continuous bedding, blocky clay, faint cross-bedding, feldspar and mica common 217CZfg Raleigh Belt Raleigh Belt Metamorphic rocks Metamorphic Rocks Felsic mica gneiss Proterozoic-PhanerozoicLater Proterozoic-PaleozoicLate Proterozoic-Cambriannone none 3 1.98808722039e+005 2.61215327097e+008Interlayered with graphitic mica schist and mica-garnet schist, commonly with kyanite; minor hornblende gneiss 218Kc Coastal Plain Coastal Plain Cretaceous Sedimentary Rocks Cape Fear Formation Phanerozioc Mesozoic Cretaceous none none 1 4.45001422699e+003 1.46669528433e+006Sandstone and sandy mudstone, yellowish gray to bluish gray, mottled red to yellowish orange, indurated, graded and laterally continuous bedding, blocky clay, faint cross-bedding, feldspar and mica common 219CZam Raleigh Belt Raleigh Belt Intrusive Rocks Intrusive Rocks Amphibolite Proterozoic-PhanerozoicLater Proterozoic-PaleozoicLate Proterozoic-Cambriannone none 7 1.42809644493e+004 4.33861118129e+006Metamorphosed mafic extrusive and intrusive rock; includes hornblende gneiss, thin layers of mica schist, and small nonlayered masses of metadiorite and metagabbro 220Qp Coastal Plain Coastal Plain Quaternary Surficial deposits Surficial deposits, undivided Phanerozioc Cenozoic Quaternary none none 14 2.19669996839e+003 2.63071051875e+005Sand, clay, gravel, and peat deposited in marine, fluvial, eolian, and lacustrine environments. Quaternary deposits not shown at altitudes greater than approximately 25 feet above mean sea level (Suffolk Scarp, in part) 221Tt Coastal Plain Coastal Plain Tertiary Sedimentary Rocks Terrace deposites and upland sediment Phanerozioc Cenozoic Tertiary none none 12 4.13925001604e+003 9.14507007481e+005Gravel, clayey sand, and sand, minor iron-oxide cemented sandstone 222PzZu Blue Ridge Belt Blue Ridge Intrusive Rocks Intrusive Rocks Meta-ultramafic rock Phanerozioc Paleozoic Permian none none 5 3.07996437499e+003 2.32136169342e+005Metamorphosed dunite, local peridotite; serpentinite, soapstone, and other altered ultramafic rock. Only larger bodies shown 223Qp Coastal Plain Coastal Plain Quaternary Surficial deposits Surficial deposits, undivided Phanerozioc Cenozoic Quaternary none none 14 1.16745110329e+003 8.62105955094e+004Sand, clay, gravel, and peat deposited in marine, fluvial, eolian, and lacustrine environments. Quaternary deposits not shown at altitudes greater than approximately 25 feet above mean sea level (Suffolk Scarp, in part) 224Qp Coastal Plain Coastal Plain Quaternary Surficial deposits Surficial deposits, undivided Phanerozioc Cenozoic Quaternary none none 14 1.18816661571e+003 7.65915899563e+004Sand, clay, gravel, and peat deposited in marine, fluvial, eolian, and lacustrine environments. Quaternary deposits not shown at altitudes greater than approximately 25 feet above mean sea level (Suffolk Scarp, in part) 225PzZg Carolina Slate Belt Carolina Slate Belt Intrusive Rocks Intrusive Rocks Metamorphosed gabbro and diorite Phanerozioc Paleozoic Permian none none 4 7.85858628539e+003 2.13459011604e+006Foliated to masive 226Qp Coastal Plain Coastal Plain Quaternary Surficial deposits Surficial deposits, undivided Phanerozioc Cenozoic Quaternary none none 14 2.64459560126e+003 3.23620156456e+005Sand, clay, gravel, and peat deposited in marine, fluvial, eolian, and lacustrine environments. Quaternary deposits not shown at altitudes greater than approximately 25 feet above mean sea level (Suffolk Scarp, in part) 227Qp Coastal Plain Coastal Plain Quaternary Surficial deposits Surficial deposits, undivided Phanerozioc Cenozoic Quaternary none none 14 3.31211193806e+003 3.48273278516e+005Sand, clay, gravel, and peat deposited in marine, fluvial, eolian, and lacustrine environments. Quaternary deposits not shown at altitudes greater than approximately 25 feet above mean sea level (Suffolk Scarp, in part) 228Zg Blue Ridge Belt Blue Ridge Intrusive Rocks Intrusive Rocks Metamorphosed granitic rock Proterozoic Late Proterozoic Late Proterozoic 680-710 25,27 3 2.69362998562e+004 8.13774059786e+006Massive to foliated, locally mylonitic. Beech, Crossnore, Brown Mountain, Lansing, and other granitic bodies 229PzZu Carolina Slate Belt Carolina Slate Belt Intrusive Rocks Intrusive Rocks Meta-ultramafic rock Phanerozioc Paleozoic Permian none none 2 6.67371862113e+003 1.98126297011e+006Metamorphosed dunite, local peridotite; serpentinite, soapstone, and other altered ultramafic rock. Only larger bodies shown 230Qp Coastal Plain Coastal Plain Quaternary Surficial deposits Surficial deposits, undivided Phanerozioc Cenozoic Quaternary none none 14 3.86825234063e+003 7.40222387815e+005Sand, clay, gravel, and peat deposited in marine, fluvial, eolian, and lacustrine environments. Quaternary deposits not shown at altitudes greater than approximately 25 feet above mean sea level (Suffolk Scarp, in part) 231Zatm Blue Ridge Belt Blue Ridge Ashe Metamorphic Suite and Tallulah Falls FormationSedimentary and Metamorphic RocksMuscovite-biotite gneiss Proterozoic Late Proterozoic Late Proterozoic none none 13 1.18592655501e+004 4.00684342409e+006Locally sulfidic; interlayered and gradational with mica schist, minor amphibolite, and hornblende gneiss 232PPg Charlotte and Milton Belts Milton Belt Intrusive Rocks Intrusive Rocks Granitic rock Phanerozioc Paleozoic Pennsylvanian-Permian 265-325 11,9 11 8.19060533840e+003 2.52527733653e+006Megacrystic to equigranular. Churchland Plutonic Suite (Western group) - Churchland, Landis, and Mooresville intrusives 233PzZq Eastern Slate Belt Eastern Slate Belt Intrusive Rocks Intrusive Rocks Metamorphosed quartz diorite Phanerozioc Paleozoic Permian none none 4 6.04284943212e+003 1.48229278779e+006Foliated to massive 234Yg Inner Piedmont, Chauga Belt, Smith River Allochthon, and Sauratown MountainSauratown Mountains AnticlinoriumMetamorphic rocks Metamorphic Rocks Granitic gneiss Proterozoic Middle Proterozoic Middle Proterozoic 1192 27 1 1.13373506555e+005 1.60460193073e+008Megacrystic, in places contains amphibolite 235CZg Carolina Slate Belt Carolina Slate Belt Intrusive Rocks Intrusive Rocks Metamorphosed granitic rock Proterozoic-PhanerozoicLater Proterozoic-PaleozoicLate Proterozoic-Cambrian520-650 3,21,9,23,28,15 1 1.02344818280e+004 4.98426624972e+006Megacrystic, well foliated; locally contains hornblende. Chapel Hill, Chatham, Farrington, Meadow Flats, Mt. Moriah, Parks Crossroads plutons, and Roxboro and Vance County suites 236Qp Coastal Plain Coastal Plain Quaternary Surficial deposits Surficial deposits, undivided Phanerozioc Cenozoic Quaternary none none 14 1.31744191136e+003 1.03730748547e+005Sand, clay, gravel, and peat deposited in marine, fluvial, eolian, and lacustrine environments. Quaternary deposits not shown at altitudes greater than approximately 25 feet above mean sea level (Suffolk Scarp, in part) 237Qp Coastal Plain Coastal Plain Quaternary Surficial deposits Surficial deposits, undivided Phanerozioc Cenozoic Quaternary none none 14 1.03962711975e+003 7.48020224187e+004Sand, clay, gravel, and peat deposited in marine, fluvial, eolian, and lacustrine environments. Quaternary deposits not shown at altitudes greater than approximately 25 feet above mean sea level (Suffolk Scarp, in part) 238Qp Coastal Plain Coastal Plain Quaternary Surficial deposits Surficial deposits, undivided Phanerozioc Cenozoic Quaternary none none 14 1.62766548448e+003 1.39898844394e+005Sand, clay, gravel, and peat deposited in marine, fluvial, eolian, and lacustrine environments. Quaternary deposits not shown at altitudes greater than approximately 25 feet above mean sea level (Suffolk Scarp, in part) 239PzZg Carolina Slate Belt Carolina Slate Belt Intrusive Rocks Intrusive Rocks Metamorphosed gabbro and diorite Phanerozioc Paleozoic Permian none none 4 1.65061407881e+004 9.47476503517e+006Foliated to masive 240Zatm Blue Ridge Belt Blue Ridge Ashe Metamorphic Suite and Tallulah Falls FormationSedimentary and Metamorphic RocksMuscovite-biotite gneiss Proterozoic Late Proterozoic Late Proterozoic none none 13 1.83375087924e+004 7.64737275984e+006Locally sulfidic; interlayered and gradational with mica schist, minor amphibolite, and hornblende gneiss 241PzZg Carolina Slate Belt Carolina Slate Belt Intrusive Rocks Intrusive Rocks Metamorphosed gabbro and diorite Phanerozioc Paleozoic Permian none none 4 6.27589051896e+004 6.15044747505e+007Foliated to masive 242PzZg Carolina Slate Belt Carolina Slate Belt Intrusive Rocks Intrusive Rocks Metamorphosed gabbro and diorite Phanerozioc Paleozoic Permian none none 4 4.17342415532e+003 1.10284327030e+006Foliated to masive 243CZmv Carolina Slate Belt Carolina Slate Belt Metamorphic rocks Metamorphic Rocks Mafic metavolcanic rock Proterozoic-PhanerozoicLater Proterozoic-PaleozoicLate Proterozoic-Cambriannone none 7 1.01810688083e+005 1.29586730055e+008Metamorphosed basaltic flows and tuffs, dark green to black; interbedded with felsic and intermediate metavolcanic rock and metamudstone. CZmv1 - Cid Formation (southwest of Asheboro) 244Qp Coastal Plain Coastal Plain Quaternary Surficial deposits Surficial deposits, undivided Phanerozioc Cenozoic Quaternary none none 14 3.39379584228e+003 5.45280276078e+005Sand, clay, gravel, and peat deposited in marine, fluvial, eolian, and lacustrine environments. Quaternary deposits not shown at altitudes greater than approximately 25 feet above mean sea level (Suffolk Scarp, in part) 245PzZq Eastern Slate Belt Eastern Slate Belt Intrusive Rocks Intrusive Rocks Metamorphosed quartz diorite Phanerozioc Paleozoic Permian none none 4 1.47095009729e+004 7.90848398684e+006Foliated to massive 246PzZq Eastern Slate Belt Eastern Slate Belt Intrusive Rocks Intrusive Rocks Metamorphosed quartz diorite Phanerozioc Paleozoic Permian none none 4 1.29660194132e+005 7.33813576705e+007Foliated to massive 247CZfg Charlotte and Milton Belts Milton Belt Metamorphic rocks Metamorphic Rocks Felsic mica gneiss Proterozoic-PhanerozoicLater Proterozoic-PaleozoicLate Proterozoic-Cambriannone none 7 6.05545690098e+004 1.00195554610e+008Interlayered with biotite and hornblende gneiss and schist 248Qp Coastal Plain Coastal Plain Quaternary Surficial deposits Surficial deposits, undivided Phanerozioc Cenozoic Quaternary none none 14 1.88883642694e+003 1.82721357119e+005Sand, clay, gravel, and peat deposited in marine, fluvial, eolian, and lacustrine environments. Quaternary deposits not shown at altitudes greater than approximately 25 feet above mean sea level (Suffolk Scarp, in part) 249Qp Coastal Plain Coastal Plain Quaternary Surficial deposits Surficial deposits, undivided Phanerozioc Cenozoic Quaternary none none 14 3.58824250093e+003 5.60176199675e+005Sand, clay, gravel, and peat deposited in marine, fluvial, eolian, and lacustrine environments. Quaternary deposits not shown at altitudes greater than approximately 25 feet above mean sea level (Suffolk Scarp, in part) 250CZfv Carolina Slate Belt Carolina Slate Belt Metamorphic rocks Metamorphic Rocks Felsic metavolcanic rock Proterozoic-PhanerozoicLater Proterozoic-PaleozoicLate Proterozoic-Cambriannone none 6 3.85077323392e+004 6.89738664671e+007Metamorphosed dacitic to rhyolitic flows and tuffs, light gray to greenish gray; interbedded with mafic and intermediate metavolcanic rock, meta-argillite, and metamudstone. CZfv2 - Cid Formation (southwest of Asheboro), CZfv1 - Uwharrie Formation (at Asheboro and to south) 251CZg Raleigh Belt Raleigh Belt Intrusive Rocks Intrusive Rocks Metamorphosed granitic rock Proterozoic-PhanerozoicLater Proterozoic-PaleozoicLate Proterozoic-Cambrian520-650 7 1 5.72339467461e+003 2.01108328457e+006Megacrystic, well foliated, locally contains hornblende; Vance County suite and Buckhorn granite 252Tt Coastal Plain Coastal Plain Tertiary Sedimentary Rocks Terrace deposites and upland sediment Phanerozioc Cenozoic Tertiary none none 12 8.89421603928e+003 2.43389752169e+006Gravel, clayey sand, and sand, minor iron-oxide cemented sandstone 255CZmd Eastern Slate Belt Eastern Slate Belt Metamorphic rocks Metamorphic Rocks Metamudstone and meta-argillite Proterozoic-PhanerozoicLater Proterozoic-PaleozoicLate Proterozoic-Cambriannone none 2 3.30390560970e+005 3.68376978046e+008Bedding plane and axial-planar cleavage common; interbedded with metasandstone, metaconglomerate, and metavolcanic rock 253Qp Coastal Plain Coastal Plain Quaternary Surficial deposits Surficial deposits, undivided Phanerozioc Cenozoic Quaternary none none 14 1.74502101143e+003 1.62165374628e+005Sand, clay, gravel, and peat deposited in marine, fluvial, eolian, and lacustrine environments. Quaternary deposits not shown at altitudes greater than approximately 25 feet above mean sea level (Suffolk Scarp, in part) 254Qp Coastal Plain Coastal Plain Quaternary Surficial deposits Surficial deposits, undivided Phanerozioc Cenozoic Quaternary none none 14 2.69943310959e+003 2.95972900716e+005Sand, clay, gravel, and peat deposited in marine, fluvial, eolian, and lacustrine environments. Quaternary deposits not shown at altitudes greater than approximately 25 feet above mean sea level (Suffolk Scarp, in part) 256Qp Coastal Plain Coastal Plain Quaternary Surficial deposits Surficial deposits, undivided Phanerozioc Cenozoic Quaternary none none 14 1.34474897096e+003 1.20022697603e+005Sand, clay, gravel, and peat deposited in marine, fluvial, eolian, and lacustrine environments. Quaternary deposits not shown at altitudes greater than approximately 25 feet above mean sea level (Suffolk Scarp, in part) 257Qp Coastal Plain Coastal Plain Quaternary Surficial deposits Surficial deposits, undivided Phanerozioc Cenozoic Quaternary none none 14 4.04280975259e+003 5.48007493766e+005Sand, clay, gravel, and peat deposited in marine, fluvial, eolian, and lacustrine environments. Quaternary deposits not shown at altitudes greater than approximately 25 feet above mean sea level (Suffolk Scarp, in part) 258CZfg Charlotte and Milton Belts Milton Belt Metamorphic rocks Metamorphic Rocks Felsic mica gneiss Proterozoic-PhanerozoicLater Proterozoic-PaleozoicLate Proterozoic-Cambriannone none 7 9.58979302508e+003 2.74020430371e+006Interlayered with biotite and hornblende gneiss and schist 259Tpy Coastal Plain Coastal Plain Tertiary Sedimentary Rocks Yorktown Formation and Duplin Formation, Undivided Phanerozioc Cenozoic Tertiary none none 10 4.57572628975e+003 8.77101023869e+005Yorktown Formation: Fossiliferous clay with varying amounts of fine-grained sand, bluish gray, shell material commonly concentrated in lenses; mainly in area north of Neuse River. Duplin Formation: Shelly, medium- to coarse-grained sand, sandy marl, and limestone, bluish gray; mainly in area south of Neuse River 260Qp Coastal Plain Coastal Plain Quaternary Surficial deposits Surficial deposits, undivided Phanerozioc Cenozoic Quaternary none none 14 4.94187793868e+003 1.01251756551e+006Sand, clay, gravel, and peat deposited in marine, fluvial, eolian, and lacustrine environments. Quaternary deposits not shown at altitudes greater than approximately 25 feet above mean sea level (Suffolk Scarp, in part) 261Zg Inner Piedmont, Chauga Belt, Smith River Allochthon, and Sauratown MountainSauratown Mountains AnticlinoriumIntrusive Rocks Intrusive Rocks Metamorphosed granitic rock Proterozoic Late Proterozoic Late Proterozoic 680-710 18 1 1.03907375740e+004 2.82630069903e+006Massive to foliated, locally mylonitic 262CZlg Raleigh Belt Raleigh Belt Metamorphic rocks Metamorphic Rocks Lineated felsic mica gneiss Proterozoic-PhanerozoicLater Proterozoic-PaleozoicLate Proterozoic-Cambriannone none 2 1.53095093717e+005 9.92505007985e+007White to pink, with strong lineation of muscovite-biotite streaks and prismatic quartz aggregates; planar foliation and layering weak; minor schist and hornblende gneiss 263CZfv Carolina Slate Belt Carolina Slate Belt Metamorphic rocks Metamorphic Rocks Felsic metavolcanic rock Proterozoic-PhanerozoicLater Proterozoic-PaleozoicLate Proterozoic-Cambriannone none 6 7.33425259600e+003 2.35871222587e+006Metamorphosed dacitic to rhyolitic flows and tuffs, light gray to greenish gray; interbedded with mafic and intermediate metavolcanic rock, meta-argillite, and metamudstone. CZfv2 - Cid Formation (southwest of Asheboro), CZfv1 - Uwharrie Formation (at Asheboro and to south) 265Qp Coastal Plain Coastal Plain Quaternary Surficial deposits Surficial deposits, undivided Phanerozioc Cenozoic Quaternary none none 14 2.88897968640e+003 3.26585288909e+005Sand, clay, gravel, and peat deposited in marine, fluvial, eolian, and lacustrine environments. Quaternary deposits not shown at altitudes greater than approximately 25 feet above mean sea level (Suffolk Scarp, in part) 264Dqd Blue Ridge Belt Blue Ridge Intrusive Rocks Intrusive Rocks Quartz diorite to granodiorite Phanerozioc Paleozoic Devonian 390 4 7 1.64353859379e+004 8.30724716111e+006Contains biotite, muscovite, and xenocrysts. Includes Whiteside Mountain, Stone Mountain, Mount Airy, Spruce Pine, and other smaller plutons 266Qp Coastal Plain Coastal Plain Quaternary Surficial deposits Surficial deposits, undivided Phanerozioc Cenozoic Quaternary none none 14 1.13559357664e+003 8.06749904812e+004Sand, clay, gravel, and peat deposited in marine, fluvial, eolian, and lacustrine environments. Quaternary deposits not shown at altitudes greater than approximately 25 feet above mean sea level (Suffolk Scarp, in part) 267PzZg Carolina Slate Belt Carolina Slate Belt Intrusive Rocks Intrusive Rocks Metamorphosed gabbro and diorite Phanerozioc Paleozoic Permian none none 4 9.95329957496e+003 3.73659348908e+006Foliated to masive 268Tt Coastal Plain Coastal Plain Tertiary Sedimentary Rocks Terrace deposites and upland sediment Phanerozioc Cenozoic Tertiary none none 12 6.56359504380e+003 2.81257446587e+006Gravel, clayey sand, and sand, minor iron-oxide cemented sandstone 269Qp Coastal Plain Coastal Plain Quaternary Surficial deposits Surficial deposits, undivided Phanerozioc Cenozoic Quaternary none none 14 4.43945048355e+003 6.89243484400e+005Sand, clay, gravel, and peat deposited in marine, fluvial, eolian, and lacustrine environments. Quaternary deposits not shown at altitudes greater than approximately 25 feet above mean sea level (Suffolk Scarp, in part) 270CZig Raleigh Belt Raleigh Belt Metamorphic rocks Metamorphic Rocks Injected gneiss Proterozoic-PhanerozoicLater Proterozoic-PaleozoicLate Proterozoic-Cambriannone none 4 1.91354519093e+005 3.33074602783e+008Biotite gneiss and schist intruded by numerous sills and dikes of granite, pegmatite, and aplite; minor hornblende gneiss 271Ccl Blue Ridge Belt Blue Ridge Chilhowee Group Sedimentary and Metamorphic RocksLower Chilhowee Group Phanerozioc Paleozoic Cambrian none none 37 2.34410550265e+003 3.19679241846e+005Feldspathic arenite, white to yellowish gray. Minor silty shale, feldspathic siltstone, and conglomerate in lower part. Includes Unicoi Formation of Hot Springs window 272Kc Coastal Plain Coastal Plain Cretaceous Sedimentary Rocks Cape Fear Formation Phanerozioc Mesozoic Cretaceous none none 1 1.13265884557e+004 9.40721169307e+006Sandstone and sandy mudstone, yellowish gray to bluish gray, mottled red to yellowish orange, indurated, graded and laterally continuous bedding, blocky clay, faint cross-bedding, feldspar and mica common 273Tt Coastal Plain Coastal Plain Tertiary Sedimentary Rocks Terrace deposites and upland sediment Phanerozioc Cenozoic Tertiary none none 12 2.24897710449e+004 8.08005913688e+006Gravel, clayey sand, and sand, minor iron-oxide cemented sandstone 274Qp Coastal Plain Coastal Plain Quaternary Surficial deposits Surficial deposits, undivided Phanerozioc Cenozoic Quaternary none none 14 3.92649977727e+003 5.01704055959e+005Sand, clay, gravel, and peat deposited in marine, fluvial, eolian, and lacustrine environments. Quaternary deposits not shown at altitudes greater than approximately 25 feet above mean sea level (Suffolk Scarp, in part) 275Qp Coastal Plain Coastal Plain Quaternary Surficial deposits Surficial deposits, undivided Phanerozioc Cenozoic Quaternary none none 14 4.98925986991e+003 8.59435191678e+005Sand, clay, gravel, and peat deposited in marine, fluvial, eolian, and lacustrine environments. Quaternary deposits not shown at altitudes greater than approximately 25 feet above mean sea level (Suffolk Scarp, in part) 276Qp Coastal Plain Coastal Plain Quaternary Surficial deposits Surficial deposits, undivided Phanerozioc Cenozoic Quaternary none none 14 1.47477253185e+003 1.17133510534e+005Sand, clay, gravel, and peat deposited in marine, fluvial, eolian, and lacustrine environments. Quaternary deposits not shown at altitudes greater than approximately 25 feet above mean sea level (Suffolk Scarp, in part) 277PzZg Carolina Slate Belt Carolina Slate Belt Intrusive Rocks Intrusive Rocks Metamorphosed gabbro and diorite Phanerozioc Paleozoic Permian none none 4 1.47927129476e+004 9.36168802526e+006Foliated to masive 278Ybgg Blue Ridge Belt Blue Ridge Sedimentary and Metamorphic Rocks Sedimentary and Metamorphic RocksBiotite granitic gneiss Proterozoic Middle Proterozoic Middle Proterozoic 950-125014 4 3.02040042468e+004 2.03111192562e+007Pinkish gray to light gray, massive to well foliated, granitic to quartz monzonitic; includes variably mylonitized orthogneiss and paragneiss, interlayered amphibolite, calc-silicate rock, and marble. Includes granites of Bryson City area, Straight Fork window, and Elk Park Plutonic Suite 279Qp Coastal Plain Coastal Plain Quaternary Surficial deposits Surficial deposits, undivided Phanerozioc Cenozoic Quaternary none none 14 2.93862305620e+003 4.78302979056e+005Sand, clay, gravel, and peat deposited in marine, fluvial, eolian, and lacustrine environments. Quaternary deposits not shown at altitudes greater than approximately 25 feet above mean sea level (Suffolk Scarp, in part) 286Tt Coastal Plain Coastal Plain Tertiary Sedimentary Rocks Terrace deposites and upland sediment Phanerozioc Cenozoic Tertiary none none 12 2.11339421789e+004 8.06392171020e+006Gravel, clayey sand, and sand, minor iron-oxide cemented sandstone 280PzZg Carolina Slate Belt Carolina Slate Belt Intrusive Rocks Intrusive Rocks Metamorphosed gabbro and diorite Phanerozioc Paleozoic Permian none none 4 4.14548035363e+004 3.92707113498e+007Foliated to masive 281Zg Inner Piedmont, Chauga Belt, Smith River Allochthon, and Sauratown MountainSauratown Mountains AnticlinoriumIntrusive Rocks Intrusive Rocks Metamorphosed granitic rock Proterozoic Late Proterozoic Late Proterozoic 680-710 18 1 5.15233140833e+003 1.36936879582e+006Massive to foliated, locally mylonitic 282CZma1Inner Piedmont, Chauga Belt, Smith River Allochthon, and Sauratown MountainSauratown Mountains AnticlinoriumMetamorphic rocks Metamorphic Rocks Metagraywack and schist Proterozoic-PhanerozoicLater Proterozoic-PaleozoicLate Proterozoic-Cambriannone none 8 1.35512628849e+004 2.56229883358e+006Metagraywacke (biotite gneiss) interlayered and gradational with amphibolite and kyanite schist; minor ultramafic and granitic rock 283PzZg Carolina Slate Belt Carolina Slate Belt Intrusive Rocks Intrusive Rocks Metamorphosed gabbro and diorite Phanerozioc Paleozoic Permian none none 4 1.30090916608e+004 4.53194755815e+006Foliated to masive 284Qp Coastal Plain Coastal Plain Quaternary Surficial deposits Surficial deposits, undivided Phanerozioc Cenozoic Quaternary none none 14 2.72343840717e+003 3.95018890232e+005Sand, clay, gravel, and peat deposited in marine, fluvial, eolian, and lacustrine environments. Quaternary deposits not shown at altitudes greater than approximately 25 feet above mean sea level (Suffolk Scarp, in part) 285Qp Coastal Plain Coastal Plain Quaternary Surficial deposits Surficial deposits, undivided Phanerozioc Cenozoic Quaternary none none 14 1.08957318157e+003 8.84012209283e+004Sand, clay, gravel, and peat deposited in marine, fluvial, eolian, and lacustrine environments. Quaternary deposits not shown at altitudes greater than approximately 25 feet above mean sea level (Suffolk Scarp, in part) 287CZbg Inner Piedmont, Chauga Belt, Smith River Allochthon, and Sauratown MountainInner Piedmont Metamorphic rocks Metamorphic Rocks Biotite gneiss and schist Proterozoic-PhanerozoicLater Proterozoic-PaleozoicLate Proterozoic-Cambriannone none 16 1.97227049203e+006 1.92331221998e+009Inequigranular, locally abundant potassic feldspar and garnet; interlayered and gradational with calc-silicate rock, sillimanite-mica schist, and amphibolite. Contains small masses of granitic rock 288CZg Carolina Slate Belt Carolina Slate Belt Intrusive Rocks Intrusive Rocks Metamorphosed granitic rock Proterozoic-PhanerozoicLater Proterozoic-PaleozoicLate Proterozoic-Cambrian520-650 3,21,9,23,28,15 1 7.06565366919e+003 3.38651029955e+006Megacrystic, well foliated; locally contains hornblende. Chapel Hill, Chatham, Farrington, Meadow Flats, Mt. Moriah, Parks Crossroads plutons, and Roxboro and Vance County suites 289PzZq Kings Mountain Belt Kings Mountain Belt Intrusive Rocks Intrusive Rocks Metamorphosed quartz diorite Phanerozioc Paleozoic Permian none none 1 6.25961709861e+003 1.86226796858e+006Foliated to massive 290CZg Raleigh Belt Raleigh Belt Intrusive Rocks Intrusive Rocks Metamorphosed granitic rock Proterozoic-PhanerozoicLater Proterozoic-PaleozoicLate Proterozoic-Cambrian520-650 7 1 5.56993268960e+003 1.92159175968e+006Megacrystic, well foliated, locally contains hornblende; Vance County suite and Buckhorn granite 292Qp Coastal Plain Coastal Plain Quaternary Surficial deposits Surficial deposits, undivided Phanerozioc Cenozoic Quaternary none none 14 8.43304215641e+002 5.27601903282e+004Sand, clay, gravel, and peat deposited in marine, fluvial, eolian, and lacustrine environments. Quaternary deposits not shown at altitudes greater than approximately 25 feet above mean sea level (Suffolk Scarp, in part) 291CZma1Inner Piedmont, Chauga Belt, Smith River Allochthon, and Sauratown MountainSauratown Mountains AnticlinoriumMetamorphic rocks Metamorphic Rocks Metagraywacke, amphibolite, and kyanite schist Proterozoic-PhanerozoicLater Proterozoic-PaleozoicLate Proterozoic-Cambriannone none 8 1.97272279307e+005 2.20287907463e+008Metagraywacke (biotite gneiss) interlayered and gradational with amphibolite and kyanite schist; minor ultramafic and granitic rock 293Tt Coastal Plain Coastal Plain Tertiary Sedimentary Rocks Terrace deposites and upland sediment Phanerozioc Cenozoic Tertiary none none 12 4.49354113660e+003 1.05053393718e+006Gravel, clayey sand, and sand, minor iron-oxide cemented sandstone 294Qp Coastal Plain Coastal Plain Quaternary Surficial deposits Surficial deposits, undivided Phanerozioc Cenozoic Quaternary none none 14 7.05608185711e+002 3.32242422811e+004Sand, clay, gravel, and peat deposited in marine, fluvial, eolian, and lacustrine environments. Quaternary deposits not shown at altitudes greater than approximately 25 feet above mean sea level (Suffolk Scarp, in part) 295CZma1Inner Piedmont, Chauga Belt, Smith River Allochthon, and Sauratown MountainSauratown Mountains AnticlinoriumMetamorphic rocks Metamorphic Rocks Metagraywacke, amphibolite, and kyanite schist Proterozoic-PhanerozoicLater Proterozoic-PaleozoicLate Proterozoic-Cambriannone none 8 4.61938299738e+003 8.54887065141e+005Metagraywacke (biotite gneiss) interlayered and gradational with amphibolite and kyanite schist; minor ultramafic and granitic rock 296Qp Coastal Plain Coastal Plain Quaternary Surficial deposits Surficial deposits, undivided Phanerozioc Cenozoic Quaternary none none 14 3.63789279954e+003 5.52397387565e+005Sand, clay, gravel, and peat deposited in marine, fluvial, eolian, and lacustrine environments. Quaternary deposits not shown at altitudes greater than approximately 25 feet above mean sea level (Suffolk Scarp, in part) 297Tt Coastal Plain Coastal Plain Tertiary Sedimentary Rocks Terrace deposites and upland sediment Phanerozioc Cenozoic Tertiary none none 12 5.02319421008e+003 1.12925948621e+006Gravel, clayey sand, and sand, minor iron-oxide cemented sandstone 298Qp Coastal Plain Coastal Plain Quaternary Surficial deposits Surficial deposits, undivided Phanerozioc Cenozoic Quaternary none none 14 1.33331111645e+003 1.07961099087e+005Sand, clay, gravel, and peat deposited in marine, fluvial, eolian, and lacustrine environments. Quaternary deposits not shown at altitudes greater than approximately 25 feet above mean sea level (Suffolk Scarp, in part) 299CZms Inner Piedmont, Chauga Belt, Smith River Allochthon, and Sauratown MountainSauratown Mountains AnticlinoriumMetamorphic rocks Metamorphic Rocks Mica schist Proterozoic-PhanerozoicLater Proterozoic-PaleozoicLate Proterozoic-Cambriannone none 14 1.05336852215e+005 4.60099175502e+007Garnet, staurolite, kyanite, or sillimanite occur locally; lenses and layers of quartz schist, micaceous quartzite, calc-silicate rock, biotite gneiss, amphibolite, and phyllite 300Qp Coastal Plain Coastal Plain Quaternary Surficial deposits Surficial deposits, undivided Phanerozioc Cenozoic Quaternary none none 14 2.87302959165e+003 4.40735652809e+005Sand, clay, gravel, and peat deposited in marine, fluvial, eolian, and lacustrine environments. Quaternary deposits not shown at altitudes greater than approximately 25 feet above mean sea level (Suffolk Scarp, in part) 301Qp Coastal Plain Coastal Plain Quaternary Surficial deposits Surficial deposits, undivided Phanerozioc Cenozoic Quaternary none none 14 1.31925840035e+003 9.66140360501e+004Sand, clay, gravel, and peat deposited in marine, fluvial, eolian, and lacustrine environments. Quaternary deposits not shown at altitudes greater than approximately 25 feet above mean sea level (Suffolk Scarp, in part) 303PzZg Carolina Slate Belt Carolina Slate Belt Intrusive Rocks Intrusive Rocks Metamorphosed gabbro and diorite Phanerozioc Paleozoic Permian none none 4 1.05963144860e+004 3.04597263612e+006Foliated to masive 304CZbf Inner Piedmont, Chauga Belt, Smith River Allochthon, and Sauratown MountainInner Piedmont Metamorphic rocks Metamorphic Rocks Fine-grained biotite gneiss Proterozoic-PhanerozoicLater Proterozoic-PaleozoicLate Proterozoic-Cambriannone none 15 1.17723527257e+005 4.86021985688e+007Strongly foliated; minor layers of amphibolite and muscovite schist 305CZbg Inner Piedmont, Chauga Belt, Smith River Allochthon, and Sauratown MountainSauratown Mountains AnticlinoriumMetamorphic rocks Metamorphic Rocks Biotite gneiss and schist Proterozoic-PhanerozoicLater Proterozoic-PaleozoicLate Proterozoic-Cambriannone none 16 4.71967943429e+004 1.21990146197e+007Inequigranular, locally abundant potassic feldspar and garnet; interlayered and gradational with calc-silicate rock, sillimanite-mica schist, and amphibolite. Contains small masses of granitic rock 306TRc Triassic Basins Durham-Sanford Subbasins Newark Supergroup Sedimentary Rocks Chatham Group, Undivided Phanerozioc Mesozoic Triassic none none 4 1.29935915828e+004 4.01471188373e+006Conglomerate, fanglomerate, sandstone, and mudstone. Conglomerate and fanglomerate shown by pattern 307Zg Inner Piedmont, Chauga Belt, Smith River Allochthon, and Sauratown MountainInner Piedmont Intrusive Rocks Intrusive Rocks Metamorphosed granitic rock Proterozoic Late Proterozoic Late Proterozoic 680-710 18 1 9.41247991027e+004 2.93406752193e+007Massive to foliated, locally mylonitic 308PzZg Carolina Slate Belt Carolina Slate Belt Intrusive Rocks Intrusive Rocks Metamorphosed gabbro and diorite Phanerozioc Paleozoic Permian none none 4 1.22027596032e+004 4.26400034098e+006Foliated to masive 309CZma2Inner Piedmont, Chauga Belt, Smith River Allochthon, and Sauratown MountainSauratown Mountains AnticlinoriumMetamorphic rocks Metamorphic Rocks Metagraywacke Proterozoic-PhanerozoicLater Proterozoic-PaleozoicLate Proterozoic-Cambriannone none 7 1.05700743539e+005 1.18787136219e+008Contains quartz and microcline porphyroblasts 310Qp Coastal Plain Coastal Plain Quaternary Surficial deposits Surficial deposits, undivided Phanerozioc Cenozoic Quaternary none none 14 2.08244771736e+003 1.61069866953e+005Sand, clay, gravel, and peat deposited in marine, fluvial, eolian, and lacustrine environments. Quaternary deposits not shown at altitudes greater than approximately 25 feet above mean sea level (Suffolk Scarp, in part) 311Yg Inner Piedmont, Chauga Belt, Smith River Allochthon, and Sauratown MountainSauratown Mountains AnticlinoriumMetamorphic rocks Metamorphic Rocks Granitic gneiss Proterozoic Middle Proterozoic Middle Proterozoic 1192 27 1 6.84429060247e+003 1.52355284152e+006Megacrystic, in places contains amphibolite 312CZam Raleigh Belt Raleigh Belt Intrusive Rocks Intrusive Rocks Amphibolite Proterozoic-PhanerozoicLater Proterozoic-PaleozoicLate Proterozoic-Cambriannone none 7 2.37110436633e+004 6.50084228460e+006Metamorphosed mafic extrusive and intrusive rock; includes hornblende gneiss, thin layers of mica schist, and small nonlayered masses of metadiorite and metagabbro 313CZms Inner Piedmont, Chauga Belt, Smith River Allochthon, and Sauratown MountainSauratown Mountains AnticlinoriumMetamorphic rocks Metamorphic Rocks Mica schist Proterozoic-PhanerozoicLater Proterozoic-PaleozoicLate Proterozoic-Cambriannone none 14 7.07424467811e+003 1.52730146343e+006Garnet, staurolite, kyanite, or sillimanite occur locally; lenses and layers of quartz schist, micaceous quartzite, calc-silicate rock, biotite gneiss, amphibolite, and phyllite 314Tt Coastal Plain Coastal Plain Tertiary Sedimentary Rocks Terrace deposites and upland sediment Phanerozioc Cenozoic Tertiary none none 12 2.06700128038e+003 2.86204888553e+005Gravel, clayey sand, and sand, minor iron-oxide cemented sandstone 315Zg Blue Ridge Belt Blue Ridge Intrusive Rocks Intrusive Rocks Metamorphosed granitic rock Proterozoic Late Proterozoic Late Proterozoic 680-710 25,27 3 4.63699116375e+004 6.18838275063e+007Massive to foliated, locally mylonitic. Beech, Crossnore, Brown Mountain, Lansing, and other granitic bodies 316CZms Inner Piedmont, Chauga Belt, Smith River Allochthon, and Sauratown MountainSauratown Mountains AnticlinoriumMetamorphic rocks Metamorphic Rocks Mica schist Proterozoic-PhanerozoicLater Proterozoic-PaleozoicLate Proterozoic-Cambriannone none 14 3.33461692347e+004 1.08857222789e+007Garnet, staurolite, kyanite, or sillimanite occur locally; lenses and layers of quartz schist, micaceous quartzite, calc-silicate rock, biotite gneiss, amphibolite, and phyllite 1839CZiv Eastern Slate Belt Eastern Slate Belt Metamorphic rocks Metamorphic Rocks Intermediate metavolcanic rock Proterozoic-PhanerozoicLater Proterozoic-PaleozoicLate Proterozoic-Cambriannone none 5 2.01353042105e+004 6.76428299028e+006Metamorphosed andesitic tuffs and flows, medium to dark grayish green; minor felsic and mafic metavolcanic rock 317Qp Coastal Plain Coastal Plain Quaternary Surficial deposits Surficial deposits, undivided Phanerozioc Cenozoic Quaternary none none 14 2.08536683534e+003 1.78438609534e+005Sand, clay, gravel, and peat deposited in marine, fluvial, eolian, and lacustrine environments. Quaternary deposits not shown at altitudes greater than approximately 25 feet above mean sea level (Suffolk Scarp, in part) 318CZve Carolina Slate Belt Carolina Slate Belt Metamorphic rocks Metamorphic Rocks Metavolcanic epi-clastic rock Proterozoic-PhanerozoicLater Proterozoic-PaleozoicLate Proterozoic-Cambriannone none 3 8.64497320330e+004 6.86121008505e+007Metamorphosed argillite, mudstone, volcanic sandstone, conglomerate, and volcanic rock 319Qp Coastal Plain Coastal Plain Quaternary Surficial deposits Surficial deposits, undivided Phanerozioc Cenozoic Quaternary none none 14 8.93840483628e+002 5.90955895219e+004Sand, clay, gravel, and peat deposited in marine, fluvial, eolian, and lacustrine environments. Quaternary deposits not shown at altitudes greater than approximately 25 feet above mean sea level (Suffolk Scarp, in part) 320PPg Charlotte and Milton Belts Milton Belt Intrusive Rocks Intrusive Rocks Granitic rock Phanerozioc Paleozoic Pennsylvanian-Permian 265-325 11,9 11 2.31525196199e+004 3.82174662970e+007Megacrystic to equigranular. Churchland Plutonic Suite (Western group) - Churchland, Landis, and Mooresville intrusives 321Yg Inner Piedmont, Chauga Belt, Smith River Allochthon, and Sauratown MountainSauratown Mountains AnticlinoriumMetamorphic rocks Metamorphic Rocks Granitic gneiss Proterozoic Middle Proterozoic Middle Proterozoic 1192 27 1 4.14948605718e+003 9.40806070763e+005Megacrystic, in places contains amphibolite 322PPg Eastern Slate Belt Eastern Slate Belt Intrusive Rocks Intrusive Rocks Granitic rock Phanerozioc Paleozoic Pennsylvanian-Permian 265-325 11,21,1,29 6 7.96781434326e+003 3.80535876848e+006Megacrystic to equigranular. Castalia, Lilington, Medoc Mountain, Sims, Contentnea Creek (?), and Elm City (?) intrusives 323Qp Coastal Plain Coastal Plain Quaternary Surficial deposits Surficial deposits, undivided Phanerozioc Cenozoic Quaternary none none 14 1.06543336364e+003 8.33376019532e+004Sand, clay, gravel, and peat deposited in marine, fluvial, eolian, and lacustrine environments. Quaternary deposits not shown at altitudes greater than approximately 25 feet above mean sea level (Suffolk Scarp, in part) 324PzZg Carolina Slate Belt Carolina Slate Belt Intrusive Rocks Intrusive Rocks Metamorphosed gabbro and diorite Phanerozioc Paleozoic Permian none none 4 9.99502469779e+003 5.23156935287e+006Foliated to masive 325Qp Coastal Plain Coastal Plain Quaternary Surficial deposits Surficial deposits, undivided Phanerozioc Cenozoic Quaternary none none 14 8.12877197962e+003 1.21844819414e+006Sand, clay, gravel, and peat deposited in marine, fluvial, eolian, and lacustrine environments. Quaternary deposits not shown at altitudes greater than approximately 25 feet above mean sea level (Suffolk Scarp, in part) 326PPg Carolina Slate Belt Carolina Slate Belt Intrusive Rocks Intrusive Rocks Granitic rock Phanerozioc Paleozoic Pennsylvanian-Permian 265-325 11 7 1.23680754243e+004 6.84495665611e+006Megacrystic to equigranular. Lilesville granite 327Qp Coastal Plain Coastal Plain Quaternary Surficial deposits Surficial deposits, undivided Phanerozioc Cenozoic Quaternary none none 14 1.10215072393e+003 8.07821187439e+004Sand, clay, gravel, and peat deposited in marine, fluvial, eolian, and lacustrine environments. Quaternary deposits not shown at altitudes greater than approximately 25 feet above mean sea level (Suffolk Scarp, in part) 328CZms Inner Piedmont, Chauga Belt, Smith River Allochthon, and Sauratown MountainSauratown Mountains AnticlinoriumMetamorphic rocks Metamorphic Rocks Mica schist Proterozoic-PhanerozoicLater Proterozoic-PaleozoicLate Proterozoic-Cambriannone none 14 4.80186248212e+003 8.63434091156e+005Garnet, staurolite, kyanite, or sillimanite occur locally; lenses and layers of quartz schist, micaceous quartzite, calc-silicate rock, biotite gneiss, amphibolite, and phyllite 329Tt Coastal Plain Coastal Plain Tertiary Sedimentary Rocks Terrace deposites and upland sediment Phanerozioc Cenozoic Tertiary none none 12 5.26521515762e+004 1.83521889176e+007Gravel, clayey sand, and sand, minor iron-oxide cemented sandstone 330PzZg Carolina Slate Belt Carolina Slate Belt Intrusive Rocks Intrusive Rocks Metamorphosed gabbro and diorite Phanerozioc Paleozoic Permian none none 4 5.22303395168e+003 1.99330157509e+006Foliated to masive 331Tt Coastal Plain Coastal Plain Tertiary Sedimentary Rocks Terrace deposites and upland sediment Phanerozioc Cenozoic Tertiary none none 12 3.58773866326e+003 5.74632831966e+005Gravel, clayey sand, and sand, minor iron-oxide cemented sandstone 332Tt Coastal Plain Coastal Plain Tertiary Sedimentary Rocks Terrace deposites and upland sediment Phanerozioc Cenozoic Tertiary none none 12 4.19201059168e+003 7.68391833969e+005Gravel, clayey sand, and sand, minor iron-oxide cemented sandstone 333Tt Coastal Plain Coastal Plain Tertiary Sedimentary Rocks Terrace deposites and upland sediment Phanerozioc Cenozoic Tertiary none none 12 5.27986121082e+003 8.21182881309e+005Gravel, clayey sand, and sand, minor iron-oxide cemented sandstone 334OCg Inner Piedmont, Chauga Belt, Smith River Allochthon, and Sauratown MountainInner Piedmont Intrusive Rocks Intrusive Rocks Metamorphosed granitic rock Phanerozioc Paleozoic Cambrian-Ordovician 455-540 10 5 2.24851027542e+005 4.17941243707e+008Equigranular to megacrystic, foliated to massive. Includes Toluca Granite 335CZbg Charlotte and Milton Belts Milton Belt Metamorphic rocks Metamorphic Rocks Biotite gneiss and schist Proterozoic-PhanerozoicLater Proterozoic-PaleozoicLate Proterozoic-Cambriannone none 6 3.46282441456e+004 2.62914996528e+007Inequigranular and megacrystic; abundant potassic feldspar and garnet; interlayered and gradational with calc-silicate rock, sillimanite-mica schist, mica schist, and amphibolite. Contains small masses of granitic rock 336Jd Triassic Basins Durham-Sanford Subbasins Intrusive Rocks Intrusive Rocks Diabase Phanerozioc Mesozoic Jurassic none none 1 6.32977646149e+003 1.75289477191e+006Dikes, gray to black 337Tt Coastal Plain Coastal Plain Tertiary Sedimentary Rocks Terrace deposites and upland sediment Phanerozioc Cenozoic Tertiary none none 12 2.47692474532e+003 4.41388883550e+005Gravel, clayey sand, and sand, minor iron-oxide cemented sandstone 338CZph Carolina Slate Belt Carolina Slate Belt Metamorphic rocks Metamorphic Rocks Phyllite and schist Proterozoic-PhanerozoicLater Proterozoic-PaleozoicLate Proterozoic-Cambriannone none 1 1.10518055134e+005 6.91299379047e+007Locally laminated and pyritic; includes phyllonite, sheared fine-grained metasediment, and metavolcanic rock. In Lilesville granite aureole, includes hornfels (CZph1), and biotite gneiss and schist (CZbg) 462CZms Inner Piedmont, Chauga Belt, Smith River Allochthon, and Sauratown MountainInner Piedmont Metamorphic rocks Metamorphic Rocks Mica schist Proterozoic-PhanerozoicLater Proterozoic-PaleozoicLate Proterozoic-Cambriannone none 14 5.86020364131e+004 3.55650689079e+007Garnet, staurolite, kyanite, or sillimanite occur locally; lenses and layers of quartz schist, micaceous quartzite, calc-silicate rock, biotite gneiss, amphibolite, and phyllite 463CZg Carolina Slate Belt Carolina Slate Belt Intrusive Rocks Intrusive Rocks Metamorphosed granitic rock Proterozoic-PhanerozoicLater Proterozoic-PaleozoicLate Proterozoic-Cambrian520-650 3,21,9,23,28,15 1 2.07395781342e+004 1.00958276292e+007Megacrystic, well foliated; locally contains hornblende. Chapel Hill, Chatham, Farrington, Meadow Flats, Mt. Moriah, Parks Crossroads plutons, and Roxboro and Vance County suites 464CZam Inner Piedmont, Chauga Belt, Smith River Allochthon, and Sauratown MountainInner Piedmont Intrusive Rocks Intrusive Rocks Amphibolite Proterozoic-PhanerozoicLater Proterozoic-PaleozoicLate Proterozoic-Cambriannone none 12 2.12422698977e+004 6.31741517543e+006Metamorphosed mafic extrusive and intrusive rock; includes hornblende gneiss, thin layers of mica schist, calc-silicate rock, and, rarely, marble. Also includes small masses of metadiorite and metagabbro 465TRd Triassic Basins Davie Basin Newark Supergroup Sedimentary Rocks Dan River Group, Undivided Phanerozioc Mesozoic Triassic none none 8 5.29293812617e+004 5.19141096639e+007Basin-margin conglomerate and sandstone, red to brown, interfingering with basin-center sandstone and mudstone, green to brown. Conglomerate shown by pattern 466Zatm Blue Ridge Belt Blue Ridge Ashe Metamorphic Suite and Tallulah Falls FormationSedimentary and Metamorphic RocksMuscovite-biotite gneiss Proterozoic Late Proterozoic Late Proterozoic none none 13 8.50078494446e+005 2.23756361646e+009Locally sulfidic; interlayered and gradational with mica schist, minor amphibolite, and hornblende gneiss 467CZiv Carolina Slate Belt Carolina Slate Belt Metamorphic rocks Metamorphic Rocks Intermediate metavolcanic rock Proterozoic-PhanerozoicLater Proterozoic-PaleozoicLate Proterozoic-Cambriannone none 5 1.97158544476e+004 6.10397326691e+006Metamorphosed andesitic tuffs and flows, medium to dark grayish green; minor felsic and mafic metavolcanic rock 468CZmv Carolina Slate Belt Carolina Slate Belt Metamorphic rocks Metamorphic Rocks Mafic metavolcanic rock Proterozoic-PhanerozoicLater Proterozoic-PaleozoicLate Proterozoic-Cambriannone none 7 1.98573546660e+004 4.83592165192e+006Metamorphosed basaltic flows and tuffs, dark green to black; interbedded with felsic and intermediate metavolcanic rock and metamudstone. CZmv1 - Cid Formation (southwest of Asheboro) 469Tt Coastal Plain Coastal Plain Tertiary Sedimentary Rocks Terrace deposites and upland sediment Phanerozioc Cenozoic Tertiary none none 12 2.78043209649e+004 1.11955801974e+007Gravel, clayey sand, and sand, minor iron-oxide cemented sandstone 470Zlm Grandfather Mountain Window Grandfather Mountain Window Intrusive Rocks Intrusive Rocks Linville Metadiabase Proterozoic Late Proterozoic Late Proterozoic none none 2 8.41033287313e+003 1.32435950689e+006Metadiabase, greenstone, and amphibolite dikes and sills; massive to schistose 562Zsr Blue Ridge Belt Blue Ridge Snowbird Group Sedimentary and Metamorphic RocksRoaring Fork Sandstone Proterozoic Late Proterozoic Late Proterozoic none none 22 4.73930159660e+004 3.20675832185e+007Greenish gray, fine to medium grained, locally cross-bedded, metamorphosed; interbedded metasiltstone and phyllite 563CZg Carolina Slate Belt Carolina Slate Belt Intrusive Rocks Intrusive Rocks Metamorphosed granitic rock Proterozoic-PhanerozoicLater Proterozoic-PaleozoicLate Proterozoic-Cambrian520-650 3,21,9,23,28,15 1 9.10370308709e+003 2.75300670319e+006Megacrystic, well foliated; locally contains hornblende. Chapel Hill, Chatham, Farrington, Meadow Flats, Mt. Moriah, Parks Crossroads plutons, and Roxboro and Vance County suites 564CZms Inner Piedmont, Chauga Belt, Smith River Allochthon, and Sauratown MountainInner Piedmont Metamorphic rocks Metamorphic Rocks Mica schist Proterozoic-PhanerozoicLater Proterozoic-PaleozoicLate Proterozoic-Cambriannone none 14 1.47144469713e+004 3.11274010993e+006Garnet, staurolite, kyanite, or sillimanite occur locally; lenses and layers of quartz schist, micaceous quartzite, calc-silicate rock, biotite gneiss, amphibolite, and phyllite 565Tt Coastal Plain Coastal Plain Tertiary Sedimentary Rocks Terrace deposites and upland sediment Phanerozioc Cenozoic Tertiary none none 12 1.88670702241e+004 7.80269855187e+006Gravel, clayey sand, and sand, minor iron-oxide cemented sandstone 566PPg Charlotte and Milton Belts Charlotte Belt Intrusive Rocks Intrusive Rocks Granitic rock Phanerozioc Paleozoic Pennsylvanian-Permian 265-325 11,9 11 1.69645042005e+004 9.19068803198e+006Megacrystic to equigranular. Churchland Plutonic Suite (Western group) - Churchland, Landis, and Mooresville intrusives 567CZfv Carolina Slate Belt Carolina Slate Belt Metamorphic rocks Metamorphic Rocks Felsic metavolcanic rock Proterozoic-PhanerozoicLater Proterozoic-PaleozoicLate Proterozoic-Cambriannone none 6 6.02610850791e+003 1.22227005093e+006Metamorphosed dacitic to rhyolitic flows and tuffs, light gray to greenish gray; interbedded with mafic and intermediate metavolcanic rock, meta-argillite, and metamudstone. CZfv2 - Cid Formation (southwest of Asheboro), CZfv1 - Uwharrie Formation (at Asheboro and to south) 568PzZg Carolina Slate Belt Carolina Slate Belt Intrusive Rocks Intrusive Rocks Metamorphosed gabbro and diorite Phanerozioc Paleozoic Permian none none 4 3.17753695856e+004 2.98099047284e+007Foliated to masive 569Zaba Blue Ridge Belt Blue Ridge Alligator Back Formation Sedimentary and Metamorphic RocksAmphibolite Proterozoic Late Proterozoic Late Proterozoic none none 15 5.24988178391e+003 1.80051352809e+006Equigranular, massive to well foliated, interlayered, rarely discordant, metamorphosed intrusive and extrusive mafic rock; may include metasedimentary rock 570CZiv Eastern Slate Belt Eastern Slate Belt Metamorphic rocks Metamorphic Rocks Intermediate metavolcanic rock Proterozoic-PhanerozoicLater Proterozoic-PaleozoicLate Proterozoic-Cambriannone none 5 8.26896014203e+003 2.38968550311e+006Metamorphosed andesitic tuffs and flows, medium to dark grayish green; minor felsic and mafic metavolcanic rock 812CZiv Carolina Slate Belt Carolina Slate Belt Metamorphic rocks Metamorphic Rocks Intermediate metavolcanic rock Proterozoic-PhanerozoicLater Proterozoic-PaleozoicLate Proterozoic-Cambriannone none 5 7.43063365491e+003 1.97897456105e+006Metamorphosed andesitic tuffs and flows, medium to dark grayish green; minor felsic and mafic metavolcanic rock 813CZmd Eastern Slate Belt Eastern Slate Belt Metamorphic rocks Metamorphic Rocks Metamudstone and meta-argillite Proterozoic-PhanerozoicLater Proterozoic-PaleozoicLate Proterozoic-Cambriannone none 2 2.21661552238e+004 1.11442599026e+007Bedding plane and axial-planar cleavage common; interbedded with metasandstone, metaconglomerate, and metavolcanic rock 814CZfv Eastern Slate Belt Eastern Slate Belt Metamorphic rocks Metamorphic Rocks Felsic metavolcanic rock Proterozoic-PhanerozoicLater Proterozoic-PaleozoicLate Proterozoic-Cambriannone none 6 1.35837014622e+004 3.25827342760e+006Metamorphosed dacitic to rhyolitic flows and tuffs, light gray to greenish gray; interbedded with mafic and intermediate metavolcanic rock, meta-argillite, and metamudstone 815Ybgg Blue Ridge Belt Blue Ridge Sedimentary and Metamorphic Rocks Sedimentary and Metamorphic RocksBiotite granitic gneiss Proterozoic Middle Proterozoic Middle Proterozoic 950-125014 4 5.20726350636e+003 1.39774615469e+006Pinkish gray to light gray, massive to well foliated, granitic to quartz monzonitic; includes variably mylonitized orthogneiss and paragneiss, interlayered amphibolite, calc-silicate rock, and marble. Includes granites of Bryson City area, Straight Fork window, and Elk Park Plutonic Suite 816PzZm Charlotte and Milton Belts Charlotte Belt Intrusive Rocks Intrusive Rocks Metamorphosed mafic rock Phanerozioc Paleozoic Permian none none 3 1.88738994263e+004 2.06641630205e+007Metagabbro, metadiorite, and mafic plutonic-volcanic complexes 817PPg Eastern Slate Belt Eastern Slate Belt Intrusive Rocks Intrusive Rocks Granitic rock Phanerozioc Paleozoic Pennsylvanian-Permian 265-325 11,21,1,29 6 2.64419772594e+003 3.57908864244e+005Megacrystic to equigranular. Castalia, Lilington, Medoc Mountain, Sims, Contentnea Creek (?), and Elm City (?) intrusives 818CZmv1Carolina Slate Belt Carolina Slate Belt Metamorphic rocks Metamorphic Rocks Cid Formation Proterozoic-PhanerozoicLater Proterozoic-PaleozoicLate Proterozoic-Cambriannone none 7 1.00969104703e+005 4.73979674960e+007Cid Formation (southwest of Asheboro) 819CZbg Raleigh Belt Raleigh Belt Metamorphic rocks Metamorphic Rocks Biotite gneiss and schist Proterozoic-PhanerozoicLater Proterozoic-PaleozoicLate Proterozoic-Cambriannone none 6 7.10665558186e+003 2.36242987582e+006Inequigranular and megacrystic; in places contains garnet; interlayered and gradational with mica schist and amphibolite; includes small masses of granitic rock 820CZc Carolina Slate Belt Carolina Slate Belt Metamorphic rocks Metamorphic Rocks Volcanic metaconglomerate Proterozoic-PhanerozoicLater Proterozoic-PaleozoicLate Proterozoic-Cambriannone none 2 1.38440154974e+004 3.72425045620e+006Includes metagraywacke and metamudstone 1256Qp Coastal Plain Coastal Plain Quaternary Surficial deposits Surficial deposits, undivided Phanerozioc Cenozoic Quaternary none none 14 2.02609679103e+003 2.33338218334e+005Sand, clay, gravel, and peat deposited in marine, fluvial, eolian, and lacustrine environments. Quaternary deposits not shown at altitudes greater than approximately 25 feet above mean sea level (Suffolk Scarp, in part) 1257CZph Raleigh Belt Raleigh Belt Metamorphic rocks Metamorphic Rocks Phyllite and schist Proterozoic-PhanerozoicLater Proterozoic-PaleozoicLate Proterozoic-Cambriannone none 1 1.87230813450e+004 5.59472743967e+006Minor biotite and pyrite; includes phyllonite, sheared fine-grained metasediment, and metavolcanic rock 1258PPg Eastern Slate Belt Eastern Slate Belt Intrusive Rocks Intrusive Rocks Granitic rock Phanerozioc Paleozoic Pennsylvanian-Permian 265-325 11,21,1,29 6 6.96988122169e+003 3.12316010890e+006Megacrystic to equigranular. Castalia, Lilington, Medoc Mountain, Sims, Contentnea Creek (?), and Elm City (?) intrusives 1259Qp Coastal Plain Coastal Plain Quaternary Surficial deposits Surficial deposits, undivided Phanerozioc Cenozoic Quaternary none none 14 7.53965638821e+003 3.05874906898e+006Sand, clay, gravel, and peat deposited in marine, fluvial, eolian, and lacustrine environments. Quaternary deposits not shown at altitudes greater than approximately 25 feet above mean sea level (Suffolk Scarp, in part) 1260CZbg Inner Piedmont, Chauga Belt, Smith River Allochthon, and Sauratown MountainInner Piedmont Metamorphic rocks Metamorphic Rocks Biotite gneiss and schist Proterozoic-PhanerozoicLater Proterozoic-PaleozoicLate Proterozoic-Cambriannone none 16 1.90005137889e+004 2.16490833941e+007Inequigranular, locally abundant potassic feldspar and garnet; interlayered and gradational with calc-silicate rock, sillimanite-mica schist, and amphibolite. Contains small masses of granitic rock 1261TRcs Triassic Basins Durham-Sanford Subbasins Chatham Group Sedimentary Rocks Sanford Formation Phanerozioc Mesozoic Triassic none none 3 1.08375961598e+004 5.42470747280e+006Conglomerate, fanglomerate, sandstone, and mudstone 1262CZve Eastern Slate Belt Eastern Slate Belt Metamorphic rocks Metamorphic Rocks Metavolcanic epi-clastic rock Proterozoic-PhanerozoicLater Proterozoic-PaleozoicLate Proterozoic-Cambriannone none 3 2.41473236770e+004 6.33400351822e+006Metamorphosed argillite, mudstone, volcanic sandstone, conglomerate, and volcanic rock 1263Zch Blue Ridge Belt Blue Ridge Ocoee Supergroup Sedimentary and Metamorphic RocksCopper Hill Formation Proterozoic Late Proterozoic Late Proterozoic none none 30 6.74518005770e+004 7.57724264941e+007Metagraywacke, massive, graded bedding common; includes dark-gray slate, mica schist, and nodular calcsilicate rock 1264Zchs Blue Ridge Belt Blue Ridge Ocoee Supergroup Sedimentary and Metamorphic RocksSlate of Copper Hill Formation Proterozoic Late Proterozoic Late Proterozoic none none 29 1.60764570241e+004 3.84381479460e+006Slate to phyllite, dark gray, graphitic, sulfidic; includes metagraywacke with local graded bedding 1265Zf Blue Ridge Belt Blue Ridge Ocoee Supergroup Sedimentary and Metamorphic RocksPhyllite Proterozoic Late Proterozoic Late Proterozoic none none 28 2.96806001267e+004 1.31398889813e+007Dark olive gray, graphitic and sulfidic 1553Qp Coastal Plain Coastal Plain Quaternary Surficial deposits Surficial deposits, undivided Phanerozioc Cenozoic Quaternary none none 14 6.28337654274e+003 7.78607686581e+005Sand, clay, gravel, and peat deposited in marine, fluvial, eolian, and lacustrine environments. Quaternary deposits not shown at altitudes greater than approximately 25 feet above mean sea level (Suffolk Scarp, in part) 1554Qp Coastal Plain Coastal Plain Quaternary Surficial deposits Surficial deposits, undivided Phanerozioc Cenozoic Quaternary none none 14 1.11696968753e+003 8.50295669000e+004Sand, clay, gravel, and peat deposited in marine, fluvial, eolian, and lacustrine environments. Quaternary deposits not shown at altitudes greater than approximately 25 feet above mean sea level (Suffolk Scarp, in part) 1555Qp Coastal Plain Coastal Plain Quaternary Surficial deposits Surficial deposits, undivided Phanerozioc Cenozoic Quaternary none none 14 1.05030354544e+003 7.83582752185e+004Sand, clay, gravel, and peat deposited in marine, fluvial, eolian, and lacustrine environments. Quaternary deposits not shown at altitudes greater than approximately 25 feet above mean sea level (Suffolk Scarp, in part) 1556Qp Coastal Plain Coastal Plain Quaternary Surficial deposits Surficial deposits, undivided Phanerozioc Cenozoic Quaternary none none 14 7.01176219675e+003 1.13911488967e+006Sand, clay, gravel, and peat deposited in marine, fluvial, eolian, and lacustrine environments. Quaternary deposits not shown at altitudes greater than approximately 25 feet above mean sea level (Suffolk Scarp, in part) 1557Tpy Coastal Plain Coastal Plain Tertiary Sedimentary Rocks Yorktown Formation and Duplin Formation, Undivided Phanerozioc Cenozoic Tertiary none none 10 1.03226574564e+004 6.57056010648e+006Yorktown Formation: Fossiliferous clay with varying amounts of fine-grained sand, bluish gray, shell material commonly concentrated in lenses; mainly in area north of Neuse River. Duplin Formation: Shelly, medium- to coarse-grained sand, sandy marl, and limestone, bluish gray; mainly in area south of Neuse River 1558Qp Coastal Plain Coastal Plain Quaternary Surficial deposits Surficial deposits, undivided Phanerozioc Cenozoic Quaternary none none 14 1.02225497672e+003 7.05878759969e+004Sand, clay, gravel, and peat deposited in marine, fluvial, eolian, and lacustrine environments. Quaternary deposits not shown at altitudes greater than approximately 25 feet above mean sea level (Suffolk Scarp, in part) 1559CZph Carolina Slate Belt Carolina Slate Belt Metamorphic rocks Metamorphic Rocks Phyllite and schist Proterozoic-PhanerozoicLater Proterozoic-PaleozoicLate Proterozoic-Cambriannone none 1 3.36472990551e+004 1.49033384871e+007Locally laminated and pyritic; includes phyllonite, sheared fine-grained metasediment, and metavolcanic rock. In Lilesville granite aureole, includes hornfels (CZph1), and biotite gneiss and schist (CZbg) 1560CZg Charlotte and Milton Belts Charlotte Belt Intrusive Rocks Intrusive Rocks Metamorphosed granitic rock Proterozoic-PhanerozoicLater Proterozoic-PaleozoicLate Proterozoic-Cambriannone none 1 7.42017387404e+003 2.91897792065e+006Megacrystic, well foliated; locally contains hornblende 1561Tt Coastal Plain Coastal Plain Tertiary Sedimentary Rocks Terrace deposites and upland sediment Phanerozioc Cenozoic Tertiary none none 12 6.00101304165e+003 1.70174188576e+006Gravel, clayey sand, and sand, minor iron-oxide cemented sandstone 1562Qp Coastal Plain Coastal Plain Quaternary Surficial deposits Surficial deposits, undivided Phanerozioc Cenozoic Quaternary none none 14 1.35599866699e+003 1.35922722009e+005Sand, clay, gravel, and peat deposited in marine, fluvial, eolian, and lacustrine environments. Quaternary deposits not shown at altitudes greater than approximately 25 feet above mean sea level (Suffolk Scarp, in part) 1563Km Coastal Plain Coastal Plain Cretaceous Sedimentary Rocks Middendorf Formation Phanerozioc Mesozoic Cretaceous none none 2 2.68884699319e+003 5.52226598572e+005Sand, sandstone, and mudstone, gray to pale gray with an orange cast, mottled; clay balls and iron-cemented concretions common, beds laterally discontinous, cross-bedding common 339CZmg Inner Piedmont, Chauga Belt, Smith River Allochthon, and Sauratown MountainSauratown Mountains AnticlinoriumMetamorphic rocks Metamorphic Rocks Metagraywacke and muscovite-biotite schist Proterozoic-PhanerozoicLater Proterozoic-PaleozoicLate Proterozoic-Cambriannone none 9 3.31946009102e+004 3.08696500813e+007Metagraywacke (biotite gneiss) interlayered and gradational with muscovite-biotite schist; minor marble and granitic rock 340TRc Triassic Basins Durham-Sanford Subbasins Newark Supergroup Sedimentary Rocks Chatham Group, Undivided Phanerozioc Mesozoic Triassic none none 4 4.07652716935e+005 1.43004700472e+009Conglomerate, fanglomerate, sandstone, and mudstone. Conglomerate and fanglomerate shown by pattern 341PzZq Eastern Slate Belt Eastern Slate Belt Intrusive Rocks Intrusive Rocks Metamorphosed quartz diorite Phanerozioc Paleozoic Permian none none 4 2.05933705222e+004 7.25502720892e+006Foliated to massive 342CZfv Carolina Slate Belt Carolina Slate Belt Metamorphic rocks Metamorphic Rocks Felsic metavolcanic rock Proterozoic-PhanerozoicLater Proterozoic-PaleozoicLate Proterozoic-Cambriannone none 6 8.39119651360e+003 2.79015609675e+006Metamorphosed dacitic to rhyolitic flows and tuffs, light gray to greenish gray; interbedded with mafic and intermediate metavolcanic rock, meta-argillite, and metamudstone. CZfv2 - Cid Formation (southwest of Asheboro), CZfv1 - Uwharrie Formation (at Asheboro and to south) 343CZmv Eastern Slate Belt Eastern Slate Belt Metamorphic rocks Metamorphic Rocks Mafic metavolcanic rock Proterozoic-PhanerozoicLater Proterozoic-PaleozoicLate Proterozoic-Cambriannone none 4 2.67171601534e+004 1.61985731732e+007Metamorphosed basaltic flows and tuffs, grayish green to black; interbedded with felsic and intermediate metavolcanic rock and metamudstone 344Tt Coastal Plain Coastal Plain Tertiary Sedimentary Rocks Terrace deposites and upland sediment Phanerozioc Cenozoic Tertiary none none 12 2.70773989797e+003 4.93787518944e+005Gravel, clayey sand, and sand, minor iron-oxide cemented sandstone 345CZiv Carolina Slate Belt Carolina Slate Belt Metamorphic rocks Metamorphic Rocks Intermediate metavolcanic rock Proterozoic-PhanerozoicLater Proterozoic-PaleozoicLate Proterozoic-Cambriannone none 5 7.32332243271e+004 2.73549067505e+007Metamorphosed andesitic tuffs and flows, medium to dark grayish green; minor felsic and mafic metavolcanic rock 346Zgma Grandfather Mountain Window Grandfather Mountain Window Grandfather Mountain Formation Metamorphic Rocks Meta-arkose Proterozoic Late Proterozoic Late Proterozoic none none 8 1.81602992152e+005 9.59050163794e+007Sericitic, conglomeratic, locally cross-bedded; interlayered metasiltstone and slate 347Zgms Grandfather Mountain Window Grandfather Mountain Window Grandfather Mountain Formation Metamorphic Rocks Metasiltstone Proterozoic Late Proterozoic Late Proterozoic none none 5 7.65004250268e+004 3.40448606769e+007Locally contains thin bedded iron-bearing dolomitic marble; interlayered with phyllite metagraywacke, and meta-arkose 348Zgmf Grandfather Mountain Window Grandfather Mountain Window Grandfather Mountain Formation Metamorphic Rocks Porphyritic felsic volcanic rock Proterozoic Late Proterozoic Late Proterozoic 820 26 6 8.29193130935e+003 1.28755105153e+006Phyllitic to schistose, contains euhedral to subeuhedral phenocrysts of gray quartz and pink potassium feldspar. Resembles quartzite and meta-arkose 349Zgmg Grandfather Mountain Window Grandfather Mountain Window Grandfather Mountain Formation Metamorphic Rocks Greenstone Proterozoic Late Proterozoic Late Proterozoic none none 7 6.70555461668e+004 3.10695732332e+007Schistose to massive, amygdaloidal; interlayered with metasedimentary rocks. Includes Montezuma Member (metabasalt) in upper part 350CZiv Eastern Slate Belt Eastern Slate Belt Metamorphic rocks Metamorphic Rocks Intermediate metavolcanic rock Proterozoic-PhanerozoicLater Proterozoic-PaleozoicLate Proterozoic-Cambriannone none 5 9.79515101153e+003 2.85863029034e+006Metamorphosed andesitic tuffs and flows, medium to dark grayish green; minor felsic and mafic metavolcanic rock 351CZfv Carolina Slate Belt Carolina Slate Belt Metamorphic rocks Metamorphic Rocks Felsic metavolcanic rock Proterozoic-PhanerozoicLater Proterozoic-PaleozoicLate Proterozoic-Cambriannone none 6 3.18221069467e+004 3.42600355593e+007Metamorphosed dacitic to rhyolitic flows and tuffs, light gray to greenish gray; interbedded with mafic and intermediate metavolcanic rock, meta-argillite, and metamudstone. CZfv2 - Cid Formation (southwest of Asheboro), CZfv1 - Uwharrie Formation (at Asheboro and to south) 352CZfv Carolina Slate Belt Carolina Slate Belt Metamorphic rocks Metamorphic Rocks Felsic metavolcanic rock Proterozoic-PhanerozoicLater Proterozoic-PaleozoicLate Proterozoic-Cambriannone none 6 2.27571184843e+004 1.28691080377e+007Metamorphosed dacitic to rhyolitic flows and tuffs, light gray to greenish gray; interbedded with mafic and intermediate metavolcanic rock, meta-argillite, and metamudstone. CZfv2 - Cid Formation (southwest of Asheboro), CZfv1 - Uwharrie Formation (at Asheboro and to south) 1841Zgmw Grandfather Mountain Window Grandfather Mountain Window Grandfather Mountain Formation Metamorphic Rocks Metagraywacke Proterozoic Late Proterozoic Late Proterozoic none none 4 1.81980927479e+005 1.48619044073e+008Cross-bedding and graded bedding common, locally conglomeratic; interlayered with metasiltstone and phyllite 354Tt Coastal Plain Coastal Plain Tertiary Sedimentary Rocks Terrace deposites and upland sediment Phanerozioc Cenozoic Tertiary none none 12 4.35323878551e+003 1.05131826642e+006Gravel, clayey sand, and sand, minor iron-oxide cemented sandstone 355PzZq Carolina Slate Belt Carolina Slate Belt Intrusive Rocks Intrusive Rocks Metamorphosed quartz diorite Phanerozioc Paleozoic Permian none none 5 3.79208240704e+004 2.55287742111e+007Foliated to massive 356Zgms Grandfather Mountain Window Grandfather Mountain Window Grandfather Mountain Formation Metamorphic Rocks Metasiltstone Proterozoic Late Proterozoic Late Proterozoic none none 5 5.21417984496e+004 3.18606945486e+007Locally contains thin bedded iron-bearing dolomitic marble; interlayered with phyllite metagraywacke, and meta-arkose 1833Ybgg Grandfather Mountain Window Grandfather Mountain Window Metamorphic rocks Metamorphic Rocks Biotite granitic gneiss Proterozoic Middle Proterozoic Middle Proterozoic 950-125014 1 2.04213496999e+005 1.74799946523e+008Contains paragneiss and granitic to quartz monzonitic orthogneiss; locally schistose and mylonitic. Locally includes tectonic slices, infolded remnants, or recrystallized equivalents of the Grandfather Mountain Formation. Equivalent to the Wilson Creek Gneiss 366Zgmu Grandfather Mountain Window Grandfather Mountain Window Grandfather Mountain Formation Metamorphic Rocks Felsic metavolcanic rocks and metasedimentary rock Proterozoic Late Proterozoic Late Proterozoic 820 26 3 1.13446792275e+004 1.92853990023e+006Tentatively correlated with Grandfather Mountain Formation 367Zgmg Grandfather Mountain Window Grandfather Mountain Window Grandfather Mountain Formation Metamorphic Rocks Greenstone Proterozoic Late Proterozoic Late Proterozoic none none 7 1.51080731373e+004 3.77082524873e+006Schistose to massive, amygdaloidal; interlayered with metasedimentary rocks. Includes Montezuma Member (metabasalt) in upper part 368CZms Inner Piedmont, Chauga Belt, Smith River Allochthon, and Sauratown MountainInner Piedmont Metamorphic rocks Metamorphic Rocks Mica schist Proterozoic-PhanerozoicLater Proterozoic-PaleozoicLate Proterozoic-Cambriannone none 14 1.74752810741e+004 5.79196160954e+006Garnet, staurolite, kyanite, or sillimanite occur locally; lenses and layers of quartz schist, micaceous quartzite, calc-silicate rock, biotite gneiss, amphibolite, and phyllite 369CZmg Inner Piedmont, Chauga Belt, Smith River Allochthon, and Sauratown MountainSauratown Mountains AnticlinoriumMetamorphic rocks Metamorphic Rocks Metagraywacke and muscovite-biotite schist Proterozoic-PhanerozoicLater Proterozoic-PaleozoicLate Proterozoic-Cambriannone none 9 5.85409318645e+003 1.31397800293e+006Metagraywacke (biotite gneiss) interlayered and gradational with muscovite-biotite schist; minor marble and granitic rock 370CZam Raleigh Belt Raleigh Belt Intrusive Rocks Intrusive Rocks Amphibolite Proterozoic-PhanerozoicLater Proterozoic-PaleozoicLate Proterozoic-Cambriannone none 7 1.25072512878e+004 2.34126894199e+006Metamorphosed mafic extrusive and intrusive rock; includes hornblende gneiss, thin layers of mica schist, and small nonlayered masses of metadiorite and metagabbro 371Jd Triassic Basins Durham-Sanford Subbasins Intrusive Rocks Intrusive Rocks Diabase Phanerozioc Mesozoic Jurassic none none 1 4.61761243266e+003 1.06518694293e+006Dikes, gray to black 372Ygg Blue Ridge Belt Blue Ridge Metamorphic rocks Sedimentary and Metamorphic RocksGranodiorite gneiss Proterozoic Middle Proterozoic Middle Proterozoic 1175 2 6 9.09489291318e+004 1.37068813616e+008Greenish gray to pinkish gray, porphyroclastic to mylonitic; epidote, sericite, and chlorite common 373Zgma Grandfather Mountain Window Grandfather Mountain Window Grandfather Mountain Formation Metamorphic Rocks Meta-arkose Proterozoic Late Proterozoic Late Proterozoic none none 8 6.11297000407e+003 1.12622456868e+006Sericitic, conglomeratic, locally cross-bedded; interlayered metasiltstone and slate 374CZms Inner Piedmont, Chauga Belt, Smith River Allochthon, and Sauratown MountainSauratown Mountains AnticlinoriumMetamorphic rocks Metamorphic Rocks Mica schist Proterozoic-PhanerozoicLater Proterozoic-PaleozoicLate Proterozoic-Cambriannone none 14 2.70237548416e+003 3.52499518482e+005Garnet, staurolite, kyanite, or sillimanite occur locally; lenses and layers of quartz schist, micaceous quartzite, calc-silicate rock, biotite gneiss, amphibolite, and phyllite 375CZfv Carolina Slate Belt Carolina Slate Belt Metamorphic rocks Metamorphic Rocks Felsic metavolcanic rock Proterozoic-PhanerozoicLater Proterozoic-PaleozoicLate Proterozoic-Cambriannone none 6 2.93552975870e+004 2.09191304779e+007Metamorphosed dacitic to rhyolitic flows and tuffs, light gray to greenish gray; interbedded with mafic and intermediate metavolcanic rock, meta-argillite, and metamudstone. CZfv2 - Cid Formation (southwest of Asheboro), CZfv1 - Uwharrie Formation (at Asheboro and to south) 376CZfv Carolina Slate Belt Carolina Slate Belt Metamorphic rocks Metamorphic Rocks Felsic metavolcanic rock Proterozoic-PhanerozoicLater Proterozoic-PaleozoicLate Proterozoic-Cambriannone none 6 7.24014929438e+003 1.46735360088e+006Metamorphosed dacitic to rhyolitic flows and tuffs, light gray to greenish gray; interbedded with mafic and intermediate metavolcanic rock, meta-argillite, and metamudstone. CZfv2 - Cid Formation (southwest of Asheboro), CZfv1 - Uwharrie Formation (at Asheboro and to south) 377PzZu Carolina Slate Belt Carolina Slate Belt Intrusive Rocks Intrusive Rocks Meta-ultramafic rock Phanerozioc Paleozoic Permian none none 2 8.39989854484e+003 1.99346346812e+006Metamorphosed dunite, local peridotite; serpentinite, soapstone, and other altered ultramafic rock. Only larger bodies shown 378Ymg Blue Ridge Belt Blue Ridge Metamorphic rocks Sedimentary and Metamorphic RocksMigmatitic biotite-hornblende gneisses Proterozoic Middle Proterozoic Middle Proterozoic 1214 12 2 2.81357859308e+005 5.39069553809e+008Layered biotite-granite gneiss, biotite-hornblende gneiss, amphibolite, calc-silicate rock, locally contains relict granulite facies rock 379CZve Carolina Slate Belt Carolina Slate Belt Metamorphic rocks Metamorphic Rocks Metavolcanic epi-clastic rock Proterozoic-PhanerozoicLater Proterozoic-PaleozoicLate Proterozoic-Cambriannone none 3 5.20324069757e+003 1.72568271686e+006Metamorphosed argillite, mudstone, volcanic sandstone, conglomerate, and volcanic rock 380CZq Eastern Slate Belt Eastern Slate Belt Metamorphic rocks Metamorphic Rocks Quartzite Proterozoic-PhanerozoicLater Proterozoic-PaleozoicLate Proterozoic-Cambriannone none 3 1.06362430115e+004 2.68519313772e+006Garnet, andalusite, kyanite, or sillimanite occur locally 381Tt Coastal Plain Coastal Plain Tertiary Sedimentary Rocks Terrace deposites and upland sediment Phanerozioc Cenozoic Tertiary none none 12 4.64264607899e+003 1.05285257397e+006Gravel, clayey sand, and sand, minor iron-oxide cemented sandstone 382PzZg Carolina Slate Belt Carolina Slate Belt Intrusive Rocks Intrusive Rocks Metamorphosed gabbro and diorite Phanerozioc Paleozoic Permian none none 4 5.03321246230e+004 3.25923944038e+007Foliated to masive 383PzZu Inner Piedmont, Chauga Belt, Smith River Allochthon, and Sauratown MountainInner Piedmont Intrusive Rocks Intrusive Rocks Meta-ultramafic rock Phanerozioc Paleozoic Permian none none 2 1.88361601690e+003 1.89130376708e+005Metamorphosed dunite, local peridotite; serpentinite, soapstone, and other altered ultramafic rock. Only larger bodies shown 384CZq Eastern Slate Belt Eastern Slate Belt Metamorphic rocks Metamorphic Rocks Quartzite Proterozoic-PhanerozoicLater Proterozoic-PaleozoicLate Proterozoic-Cambriannone none 3 4.77950198796e+003 6.84917893600e+005Garnet, andalusite, kyanite, or sillimanite occur locally 385Jd Triassic Basins Durham-Sanford Subbasins Intrusive Rocks Intrusive Rocks Diabase Phanerozioc Mesozoic Jurassic none none 1 1.22797945653e+004 3.61558188326e+006Dikes, gray to black 386Zgmu Grandfather Mountain Window Grandfather Mountain Window Grandfather Mountain Formation Metamorphic Rocks Felsic metavolcanic rocks and metasedimentary rock Proterozoic Late Proterozoic Late Proterozoic 820 26 3 5.04390976114e+004 1.52988067612e+007Tentatively correlated with Grandfather Mountain Formation 387CZam Raleigh Belt Raleigh Belt Intrusive Rocks Intrusive Rocks Amphibolite Proterozoic-PhanerozoicLater Proterozoic-PaleozoicLate Proterozoic-Cambriannone none 7 1.20343439183e+004 3.33166465892e+006Metamorphosed mafic extrusive and intrusive rock; includes hornblende gneiss, thin layers of mica schist, and small nonlayered masses of metadiorite and metagabbro 388Zgmf Grandfather Mountain Window Grandfather Mountain Window Grandfather Mountain Formation Metamorphic Rocks Porphyritic felsic volcanic rock Proterozoic Late Proterozoic Late Proterozoic 820 26 6 4.33311432281e+003 6.27211503002e+005Phyllitic to schistose, contains euhedral to subeuhedral phenocrysts of gray quartz and pink potassium feldspar. Resembles quartzite and meta-arkose 389Zgmg Grandfather Mountain Window Grandfather Mountain Window Grandfather Mountain Formation Metamorphic Rocks Greenstone Proterozoic Late Proterozoic Late Proterozoic none none 7 5.16680037398e+003 9.37240676434e+005Schistose to massive, amygdaloidal; interlayered with metasedimentary rocks. Includes Montezuma Member (metabasalt) in upper part 390PPg Raleigh Belt Raleigh Belt Intrusive Rocks Intrusive Rocks Granitic rock Phanerozioc Paleozoic Pennsylvanian-Permian 265-325 11 6 1.39480722619e+004 7.94524083444e+006Megacrystic to equigranular. Castalia and Wilton intrusives 391Zlm Grandfather Mountain Window Grandfather Mountain Window Intrusive Rocks Intrusive Rocks Linville Metadiabase Proterozoic Late Proterozoic Late Proterozoic none none 2 6.58645484472e+003 9.83561199109e+005Metadiabase, greenstone, and amphibolite dikes and sills; massive to schistose 392CZmv Eastern Slate Belt Eastern Slate Belt Metamorphic rocks Metamorphic Rocks Mafic metavolcanic rock Proterozoic-PhanerozoicLater Proterozoic-PaleozoicLate Proterozoic-Cambriannone none 4 4.01093063366e+004 3.81049498457e+007Metamorphosed basaltic flows and tuffs, grayish green to black; interbedded with felsic and intermediate metavolcanic rock and metamudstone 393CZms Inner Piedmont, Chauga Belt, Smith River Allochthon, and Sauratown MountainSauratown Mountains AnticlinoriumMetamorphic rocks Metamorphic Rocks Mica schist Proterozoic-PhanerozoicLater Proterozoic-PaleozoicLate Proterozoic-Cambriannone none 14 2.65911371009e+003 3.40072356037e+005Garnet, staurolite, kyanite, or sillimanite occur locally; lenses and layers of quartz schist, micaceous quartzite, calc-silicate rock, biotite gneiss, amphibolite, and phyllite 394CZmg Inner Piedmont, Chauga Belt, Smith River Allochthon, and Sauratown MountainSauratown Mountains AnticlinoriumMetamorphic rocks Metamorphic Rocks Metagraywacke and muscovite-biotite schist Proterozoic-PhanerozoicLater Proterozoic-PaleozoicLate Proterozoic-Cambriannone none 9 3.12581104237e+004 1.32609664253e+007Metagraywacke (biotite gneiss) interlayered and gradational with muscovite-biotite schist; minor marble and granitic rock 395OCgm Inner Piedmont, Chauga Belt, Smith River Allochthon, and Sauratown MountainInner Piedmont Intrusive Rocks Intrusive Rocks Migmatitic granitic gneiss Phanerozioc Paleozoic Cambrian-Ordovician none none 6 6.77498729924e+005 1.01525713250e+009Foliated to massive, granitic to quartz dioritic; biotite gneiss and amphibolite common 396Ccl Blue Ridge Belt Blue Ridge Chilhowee Group Sedimentary and Metamorphic RocksLower Chilhowee Group Phanerozioc Paleozoic Cambrian none none 37 5.34721744318e+003 1.33227878856e+006Feldspathic arenite, white to yellowish gray. Minor silty shale, feldspathic siltstone, and conglomerate in lower part. Includes Unicoi Formation of Hot Springs window 1844PPmg Eastern Slate Belt Eastern Slate Belt Intrusive Rocks Intrusive Rocks Foliated to massive granitic rock Phanerozioc Paleozoic Pennsylvanian-Permian 270-320 8 5 2.07888628463e+005 1.22922492899e+008Megacrystic to equigranular. Butterwood Creek intrusive and Rocky Mount intrusive suite 398Ybgg Blue Ridge Belt Blue Ridge Sedimentary and Metamorphic Rocks Sedimentary and Metamorphic RocksBiotite granitic gneiss Proterozoic Middle Proterozoic Middle Proterozoic 950-125014 4 3.29449891828e+005 8.89969694794e+008Pinkish gray to light gray, massive to well foliated, granitic to quartz monzonitic; includes variably mylonitized orthogneiss and paragneiss, interlayered amphibolite, calc-silicate rock, and marble. Includes granites of Bryson City area, Straight Fork window, and Elk Park Plutonic Suite 399CZq Eastern Slate Belt Eastern Slate Belt Metamorphic rocks Metamorphic Rocks Quartzite Proterozoic-PhanerozoicLater Proterozoic-PaleozoicLate Proterozoic-Cambriannone none 3 1.56285237558e+003 1.47597115150e+005Garnet, andalusite, kyanite, or sillimanite occur locally 400CZiv Carolina Slate Belt Carolina Slate Belt Metamorphic rocks Metamorphic Rocks Intermediate metavolcanic rock Proterozoic-PhanerozoicLater Proterozoic-PaleozoicLate Proterozoic-Cambriannone none 5 7.06908590992e+004 7.90196044938e+007Metamorphosed andesitic tuffs and flows, medium to dark grayish green; minor felsic and mafic metavolcanic rock 401Tt Coastal Plain Coastal Plain Tertiary Sedimentary Rocks Terrace deposites and upland sediment Phanerozioc Cenozoic Tertiary none none 12 3.60132884179e+004 1.31420355903e+007Gravel, clayey sand, and sand, minor iron-oxide cemented sandstone 402Zgmg Grandfather Mountain Window Grandfather Mountain Window Grandfather Mountain Formation Metamorphic Rocks Greenstone Proterozoic Late Proterozoic Late Proterozoic none none 7 5.08812170328e+003 8.74356027657e+005Schistose to massive, amygdaloidal; interlayered with metasedimentary rocks. Includes Montezuma Member (metabasalt) in upper part 403CZms Inner Piedmont, Chauga Belt, Smith River Allochthon, and Sauratown MountainSauratown Mountains AnticlinoriumMetamorphic rocks Metamorphic Rocks Mica schist Proterozoic-PhanerozoicLater Proterozoic-PaleozoicLate Proterozoic-Cambriannone none 14 2.77533267710e+003 3.50466962707e+005Garnet, staurolite, kyanite, or sillimanite occur locally; lenses and layers of quartz schist, micaceous quartzite, calc-silicate rock, biotite gneiss, amphibolite, and phyllite 404Ybgg Grandfather Mountain Window Grandfather Mountain Window Metamorphic rocks Metamorphic Rocks Biotite granitic gneiss Proterozoic Middle Proterozoic Middle Proterozoic 950-125014 1 1.48744483674e+005 2.47103020560e+008Contains paragneiss and granitic to quartz monzonitic orthogneiss; locally schistose and mylonitic. Locally includes tectonic slices, infolded remnants, or recrystallized equivalents of the Grandfather Mountain Formation. Equivalent to the Wilson Creek Gneiss 405CZbg Raleigh Belt Raleigh Belt Metamorphic rocks Metamorphic Rocks Biotite gneiss and schist Proterozoic-PhanerozoicLater Proterozoic-PaleozoicLate Proterozoic-Cambriannone none 6 2.19849066569e+005 2.17998157588e+008Inequigranular and megacrystic; in places contains garnet; interlayered and gradational with mica schist and amphibolite; includes small masses of granitic rock 406Zlm Grandfather Mountain Window Grandfather Mountain Window Intrusive Rocks Intrusive Rocks Linville Metadiabase Proterozoic Late Proterozoic Late Proterozoic none none 2 2.86702283558e+003 4.30176956237e+005Metadiabase, greenstone, and amphibolite dikes and sills; massive to schistose 407Jd Triassic Basins Durham-Sanford Subbasins Intrusive Rocks Intrusive Rocks Diabase Phanerozioc Mesozoic Jurassic none none 1 1.03150455844e+004 2.66735663433e+006Dikes, gray to black 408PzZg Carolina Slate Belt Carolina Slate Belt Intrusive Rocks Intrusive Rocks Metamorphosed gabbro and diorite Phanerozioc Paleozoic Permian none none 4 3.99729585700e+003 8.55452734328e+005Foliated to masive 409Zlm Grandfather Mountain Window Grandfather Mountain Window Intrusive Rocks Intrusive Rocks Linville Metadiabase Proterozoic Late Proterozoic Late Proterozoic none none 2 5.48160074098e+003 9.07495813213e+005Metadiabase, greenstone, and amphibolite dikes and sills; massive to schistose 410CZms Inner Piedmont, Chauga Belt, Smith River Allochthon, and Sauratown MountainSauratown Mountains AnticlinoriumMetamorphic rocks Metamorphic Rocks Mica schist Proterozoic-PhanerozoicLater Proterozoic-PaleozoicLate Proterozoic-Cambriannone none 14 2.90361286387e+003 4.26152439269e+005Garnet, staurolite, kyanite, or sillimanite occur locally; lenses and layers of quartz schist, micaceous quartzite, calc-silicate rock, biotite gneiss, amphibolite, and phyllite 411PzZu Carolina Slate Belt Carolina Slate Belt Intrusive Rocks Intrusive Rocks Meta-ultramafic rock Phanerozioc Paleozoic Permian none none 2 1.98596840884e+003 2.06895201666e+005Metamorphosed dunite, local peridotite; serpentinite, soapstone, and other altered ultramafic rock. Only larger bodies shown 412Ybrg Grandfather Mountain Window Grandfather Mountain Window Metamorphic rocks Metamorphic Rocks Blowing Rock Gneiss Proterozoic Middle Proterozoic Middle Proterozoic 1000 10 1 2.17403727825e+004 1.23124304620e+007Abundant white potassic feldspar megacrysts in finely banded biotite schist, locally calcareous; interlayered with quartz-feldspar schist, calcareous biotite schist phyllite, black slate, calcareous quartzite, sulfidic greenstone, and siliceous tuff 413CZms Inner Piedmont, Chauga Belt, Smith River Allochthon, and Sauratown MountainSauratown Mountains AnticlinoriumMetamorphic rocks Metamorphic Rocks Mica schist Proterozoic-PhanerozoicLater Proterozoic-PaleozoicLate Proterozoic-Cambriannone none 14 2.75033824755e+003 4.04670448813e+005Garnet, staurolite, kyanite, or sillimanite occur locally; lenses and layers of quartz schist, micaceous quartzite, calc-silicate rock, biotite gneiss, amphibolite, and phyllite 414Ccl Blue Ridge Belt Blue Ridge Chilhowee Group Sedimentary and Metamorphic RocksLower Chilhowee Group Phanerozioc Paleozoic Cambrian none none 37 1.69402315101e+003 1.25946533803e+005Feldspathic arenite, white to yellowish gray. Minor silty shale, feldspathic siltstone, and conglomerate in lower part. Includes Unicoi Formation of Hot Springs window 415CZq Eastern Slate Belt Eastern Slate Belt Metamorphic rocks Metamorphic Rocks Quartzite Proterozoic-PhanerozoicLater Proterozoic-PaleozoicLate Proterozoic-Cambriannone none 3 5.62501123623e+003 1.11743864881e+006Garnet, andalusite, kyanite, or sillimanite occur locally 416Zlm Grandfather Mountain Window Grandfather Mountain Window Intrusive Rocks Intrusive Rocks Linville Metadiabase Proterozoic Late Proterozoic Late Proterozoic none none 2 1.07053457296e+004 2.16582266827e+006Metadiabase, greenstone, and amphibolite dikes and sills; massive to schistose 417Zlm Grandfather Mountain Window Grandfather Mountain Window Intrusive Rocks Intrusive Rocks Linville Metadiabase Proterozoic Late Proterozoic Late Proterozoic none none 2 6.95638572999e+003 1.77825455238e+006Metadiabase, greenstone, and amphibolite dikes and sills; massive to schistose 418Ccl Blue Ridge Belt Blue Ridge Chilhowee Group Sedimentary and Metamorphic RocksLower Chilhowee Group Phanerozioc Paleozoic Cambrian none none 37 2.29229308875e+004 1.54491458253e+007Feldspathic arenite, white to yellowish gray. Minor silty shale, feldspathic siltstone, and conglomerate in lower part. Includes Unicoi Formation of Hot Springs window 419CZmd Eastern Slate Belt Eastern Slate Belt Metamorphic rocks Metamorphic Rocks Metamudstone and meta-argillite Proterozoic-PhanerozoicLater Proterozoic-PaleozoicLate Proterozoic-Cambriannone none 2 1.10007029921e+004 3.73524400560e+006Bedding plane and axial-planar cleavage common; interbedded with metasandstone, metaconglomerate, and metavolcanic rock 420CZms Inner Piedmont, Chauga Belt, Smith River Allochthon, and Sauratown MountainSauratown Mountains AnticlinoriumMetamorphic rocks Metamorphic Rocks Mica schist Proterozoic-PhanerozoicLater Proterozoic-PaleozoicLate Proterozoic-Cambriannone none 14 2.65479419878e+003 3.80877221167e+005Garnet, staurolite, kyanite, or sillimanite occur locally; lenses and layers of quartz schist, micaceous quartzite, calc-silicate rock, biotite gneiss, amphibolite, and phyllite 421Zlm Grandfather Mountain Window Grandfather Mountain Window Intrusive Rocks Intrusive Rocks Linville Metadiabase Proterozoic Late Proterozoic Late Proterozoic none none 2 1.23837330018e+004 2.09835817907e+006Metadiabase, greenstone, and amphibolite dikes and sills; massive to schistose 422CZms Inner Piedmont, Chauga Belt, Smith River Allochthon, and Sauratown MountainSauratown Mountains AnticlinoriumMetamorphic rocks Metamorphic Rocks Mica schist Proterozoic-PhanerozoicLater Proterozoic-PaleozoicLate Proterozoic-Cambriannone none 14 1.91076465658e+004 4.43415313153e+006Garnet, staurolite, kyanite, or sillimanite occur locally; lenses and layers of quartz schist, micaceous quartzite, calc-silicate rock, biotite gneiss, amphibolite, and phyllite 423PzZg Carolina Slate Belt Carolina Slate Belt Intrusive Rocks Intrusive Rocks Metamorphosed gabbro and diorite Phanerozioc Paleozoic Permian none none 4 1.84940169791e+004 1.14054908597e+007Foliated to masive 424Zlm Grandfather Mountain Window Grandfather Mountain Window Intrusive Rocks Intrusive Rocks Linville Metadiabase Proterozoic Late Proterozoic Late Proterozoic none none 2 5.90943842334e+003 1.45829630617e+006Metadiabase, greenstone, and amphibolite dikes and sills; massive to schistose 425Jd Triassic Basins Durham-Sanford Subbasins Intrusive Rocks Intrusive Rocks Diabase Phanerozioc Mesozoic Jurassic none none 1 3.82988496705e+004 1.76109465391e+007Dikes, gray to black 426Tt Coastal Plain Coastal Plain Tertiary Sedimentary Rocks Terrace deposites and upland sediment Phanerozioc Cenozoic Tertiary none none 12 3.63743278166e+003 8.08396378700e+005Gravel, clayey sand, and sand, minor iron-oxide cemented sandstone 427CZiv Carolina Slate Belt Carolina Slate Belt Metamorphic rocks Metamorphic Rocks Intermediate metavolcanic rock Proterozoic-PhanerozoicLater Proterozoic-PaleozoicLate Proterozoic-Cambriannone none 5 9.04254498950e+003 4.41696594737e+006Metamorphosed andesitic tuffs and flows, medium to dark grayish green; minor felsic and mafic metavolcanic rock 428CZms Inner Piedmont, Chauga Belt, Smith River Allochthon, and Sauratown MountainSauratown Mountains AnticlinoriumMetamorphic rocks Metamorphic Rocks Mica schist Proterozoic-PhanerozoicLater Proterozoic-PaleozoicLate Proterozoic-Cambriannone none 14 6.75686298369e+003 1.09470084737e+006Garnet, staurolite, kyanite, or sillimanite occur locally; lenses and layers of quartz schist, micaceous quartzite, calc-silicate rock, biotite gneiss, amphibolite, and phyllite 429PzZg Inner Piedmont, Chauga Belt, Smith River Allochthon, and Sauratown MountainSauratown Mountains AnticlinoriumIntrusive Rocks Intrusive Rocks Metamorphosed gabbro and diorite Phanerozioc Paleozoic Permian none none 3 1.16187705840e+004 6.93808742443e+006Foliated to masive 430Ccu Blue Ridge Belt Blue Ridge Chilhowee Group Sedimentary and Metamorphic RocksUpper Chilhowee Group Phanerozioc Paleozoic Cambrian none none 38 7.91677346884e+003 3.20790806154e+006Vitreous quartz arenite, white to light gray; interbedded sandy siltstone and shale. Erwin and Hampton formations of Hot Springs Window 431Zlm Grandfather Mountain Window Grandfather Mountain Window Intrusive Rocks Intrusive Rocks Linville Metadiabase Proterozoic Late Proterozoic Late Proterozoic none none 2 7.16733028377e+003 1.50266685453e+006Metadiabase, greenstone, and amphibolite dikes and sills; massive to schistose 432CZam Raleigh Belt Raleigh Belt Intrusive Rocks Intrusive Rocks Amphibolite Proterozoic-PhanerozoicLater Proterozoic-PaleozoicLate Proterozoic-Cambriannone none 7 9.67812123136e+003 2.54358072914e+006Metamorphosed mafic extrusive and intrusive rock; includes hornblende gneiss, thin layers of mica schist, and small nonlayered masses of metadiorite and metagabbro 433Tt Coastal Plain Coastal Plain Tertiary Sedimentary Rocks Terrace deposites and upland sediment Phanerozioc Cenozoic Tertiary none none 12 2.67851474357e+003 3.93349810944e+005Gravel, clayey sand, and sand, minor iron-oxide cemented sandstone 434CZmv Carolina Slate Belt Carolina Slate Belt Metamorphic rocks Metamorphic Rocks Mafic metavolcanic rock Proterozoic-PhanerozoicLater Proterozoic-PaleozoicLate Proterozoic-Cambriannone none 7 9.01983550283e+004 7.70520268530e+007Metamorphosed basaltic flows and tuffs, dark green to black; interbedded with felsic and intermediate metavolcanic rock and metamudstone. CZmv1 - Cid Formation (southwest of Asheboro) 435PzZg Carolina Slate Belt Carolina Slate Belt Intrusive Rocks Intrusive Rocks Metamorphosed gabbro and diorite Phanerozioc Paleozoic Permian none none 4 5.88582643707e+004 5.91835719488e+007Foliated to masive 436Zgmu Grandfather Mountain Window Grandfather Mountain Window Grandfather Mountain Formation Metamorphic Rocks Felsic metavolcanic rocks and metasedimentary rock Proterozoic Late Proterozoic Late Proterozoic 820 26 3 5.76790800178e+004 3.28053487606e+007Tentatively correlated with Grandfather Mountain Formation 437PzZu Carolina Slate Belt Carolina Slate Belt Intrusive Rocks Intrusive Rocks Meta-ultramafic rock Phanerozioc Paleozoic Permian none none 2 3.58500812577e+003 6.57006845607e+005Metamorphosed dunite, local peridotite; serpentinite, soapstone, and other altered ultramafic rock. Only larger bodies shown 438Zlm Grandfather Mountain Window Grandfather Mountain Window Intrusive Rocks Intrusive Rocks Linville Metadiabase Proterozoic Late Proterozoic Late Proterozoic none none 2 2.45607437084e+003 3.79272472462e+005Metadiabase, greenstone, and amphibolite dikes and sills; massive to schistose 439Zs Blue Ridge Belt Blue Ridge Sedimentary and Metamorphic Rocks Sedimentary and Metamorphic RocksSnowbird Group, Undivided Proterozoic Late Proterozoic Late Proterozoic none none 24 3.00345240640e+004 2.48233670383e+007Feldspathic metasiltstone, metasandstone, and phyllite. Basal schist contains lenses of quartz-pebble conglomerate 440Zlm Grandfather Mountain Window Grandfather Mountain Window Intrusive Rocks Intrusive Rocks Linville Metadiabase Proterozoic Late Proterozoic Late Proterozoic none none 2 2.11781426817e+004 6.57084938045e+006Metadiabase, greenstone, and amphibolite dikes and sills; massive to schistose 441Zlm Grandfather Mountain Window Grandfather Mountain Window Intrusive Rocks Intrusive Rocks Linville Metadiabase Proterozoic Late Proterozoic Late Proterozoic none none 2 2.89151831051e+003 3.84667245806e+005Metadiabase, greenstone, and amphibolite dikes and sills; massive to schistose 442Zlm Grandfather Mountain Window Grandfather Mountain Window Intrusive Rocks Intrusive Rocks Linville Metadiabase Proterozoic Late Proterozoic Late Proterozoic none none 2 5.01528526759e+003 7.72337722237e+005Metadiabase, greenstone, and amphibolite dikes and sills; massive to schistose 443CZg Carolina Slate Belt Carolina Slate Belt Intrusive Rocks Intrusive Rocks Metamorphosed granitic rock Proterozoic-PhanerozoicLater Proterozoic-PaleozoicLate Proterozoic-Cambrian520-650 3,21,9,23,28,15 1 3.66848926867e+004 3.25985431369e+007Megacrystic, well foliated; locally contains hornblende. Chapel Hill, Chatham, Farrington, Meadow Flats, Mt. Moriah, Parks Crossroads plutons, and Roxboro and Vance County suites 444Zgmg Grandfather Mountain Window Grandfather Mountain Window Grandfather Mountain Formation Metamorphic Rocks Greenstone Proterozoic Late Proterozoic Late Proterozoic none none 7 4.80748654300e+003 8.25430124830e+005Schistose to massive, amygdaloidal; interlayered with metasedimentary rocks. Includes Montezuma Member (metabasalt) in upper part 445Tt Coastal Plain Coastal Plain Tertiary Sedimentary Rocks Terrace deposites and upland sediment Phanerozioc Cenozoic Tertiary none none 12 4.58990683126e+003 1.16490653753e+006Gravel, clayey sand, and sand, minor iron-oxide cemented sandstone 446Zlm Grandfather Mountain Window Grandfather Mountain Window Intrusive Rocks Intrusive Rocks Linville Metadiabase Proterozoic Late Proterozoic Late Proterozoic none none 2 2.81412712506e+003 4.39619705889e+005Metadiabase, greenstone, and amphibolite dikes and sills; massive to schistose 447Zgmu Grandfather Mountain Window Grandfather Mountain Window Grandfather Mountain Formation Metamorphic Rocks Felsic metavolcanic rocks and metasedimentary rock Proterozoic Late Proterozoic Late Proterozoic 820 26 3 5.40148532979e+004 1.17459805296e+007Tentatively correlated with Grandfather Mountain Formation 448CZiv Carolina Slate Belt Carolina Slate Belt Metamorphic rocks Metamorphic Rocks Intermediate metavolcanic rock Proterozoic-PhanerozoicLater Proterozoic-PaleozoicLate Proterozoic-Cambriannone none 5 2.78630886768e+004 7.04003825183e+006Metamorphosed andesitic tuffs and flows, medium to dark grayish green; minor felsic and mafic metavolcanic rock 449PzZg Carolina Slate Belt Carolina Slate Belt Intrusive Rocks Intrusive Rocks Metamorphosed gabbro and diorite Phanerozioc Paleozoic Permian none none 4 2.89157555568e+004 4.67446167563e+007Foliated to masive 450PzZm Charlotte and Milton Belts Charlotte Belt Intrusive Rocks Intrusive Rocks Metamorphosed mafic rock Phanerozioc Paleozoic Permian none none 3 3.72536460205e+005 4.50421740435e+008Metagabbro, metadiorite, and mafic plutonic-volcanic complexes 451Ccl Blue Ridge Belt Blue Ridge Chilhowee Group Sedimentary and Metamorphic RocksLower Chilhowee Group Phanerozioc Paleozoic Cambrian none none 37 3.06415802656e+004 1.73309011126e+007Feldspathic arenite, white to yellowish gray. Minor silty shale, feldspathic siltstone, and conglomerate in lower part. Includes Unicoi Formation of Hot Springs window 452Ygg Blue Ridge Belt Blue Ridge Metamorphic rocks Sedimentary and Metamorphic RocksGranodiorite gneiss Proterozoic Middle Proterozoic Middle Proterozoic 1175 2 6 2.84625037148e+003 5.28525907459e+005Greenish gray to pinkish gray, porphyroclastic to mylonitic; epidote, sericite, and chlorite common 453Tt Coastal Plain Coastal Plain Tertiary Sedimentary Rocks Terrace deposites and upland sediment Phanerozioc Cenozoic Tertiary none none 12 4.23238843764e+003 7.49437386900e+005Gravel, clayey sand, and sand, minor iron-oxide cemented sandstone 547Dqd Blue Ridge Belt Blue Ridge Intrusive Rocks Intrusive Rocks Quartz diorite to granodiorite Phanerozioc Paleozoic Devonian 390 4 7 4.79998517965e+003 8.87891258494e+005Contains biotite, muscovite, and xenocrysts. Includes Whiteside Mountain, Stone Mountain, Mount Airy, Spruce Pine, and other smaller plutons 1855Tpy Coastal Plain Coastal Plain Tertiary Sedimentary Rocks Yorktown Formation and Duplin Formation, Undivided Phanerozioc Cenozoic Tertiary none none 10 2.82729419472e+004 2.48307625439e+007Yorktown Formation: Fossiliferous clay with varying amounts of fine-grained sand, bluish gray, shell material commonly concentrated in lenses; mainly in area north of Neuse River. Duplin Formation: Shelly, medium- to coarse-grained sand, sandy marl, and limestone, bluish gray; mainly in area south of Neuse River 1845CZms Inner Piedmont, Chauga Belt, Smith River Allochthon, and Sauratown MountainInner Piedmont Metamorphic rocks Metamorphic Rocks Mica schist Proterozoic-PhanerozoicLater Proterozoic-PaleozoicLate Proterozoic-Cambriannone none 14 2.29054169981e+004 9.78880263366e+006Garnet, staurolite, kyanite, or sillimanite occur locally; lenses and layers of quartz schist, micaceous quartzite, calc-silicate rock, biotite gneiss, amphibolite, and phyllite 548CZab Inner Piedmont, Chauga Belt, Smith River Allochthon, and Sauratown MountainInner Piedmont Metamorphic rocks Metamorphic Rocks Amphibolite and biotite gneiss Proterozoic-PhanerozoicLater Proterozoic-PaleozoicLate Proterozoic-Cambriannone none 13 2.15301424867e+004 2.30332792732e+007Interlayered; minor layers and lenses of hornblende gneiss, metagabbro, mica schist, and granitic rock 549CZms Inner Piedmont, Chauga Belt, Smith River Allochthon, and Sauratown MountainInner Piedmont Metamorphic rocks Metamorphic Rocks Mica schist Proterozoic-PhanerozoicLater Proterozoic-PaleozoicLate Proterozoic-Cambriannone none 14 1.11751853594e+004 5.15295895228e+006Garnet, staurolite, kyanite, or sillimanite occur locally; lenses and layers of quartz schist, micaceous quartzite, calc-silicate rock, biotite gneiss, amphibolite, and phyllite 550CZms Inner Piedmont, Chauga Belt, Smith River Allochthon, and Sauratown MountainInner Piedmont Metamorphic rocks Metamorphic Rocks Mica schist Proterozoic-PhanerozoicLater Proterozoic-PaleozoicLate Proterozoic-Cambriannone none 14 4.71594133404e+004 2.73467725990e+007Garnet, staurolite, kyanite, or sillimanite occur locally; lenses and layers of quartz schist, micaceous quartzite, calc-silicate rock, biotite gneiss, amphibolite, and phyllite 551CZg Charlotte and Milton Belts Charlotte Belt Intrusive Rocks Intrusive Rocks Metamorphosed granitic rock Proterozoic-PhanerozoicLater Proterozoic-PaleozoicLate Proterozoic-Cambriannone none 1 1.33795093743e+004 9.74600124139e+006Megacrystic, well foliated; locally contains hornblende 552CZq Charlotte and Milton Belts Charlotte Belt Metamorphic rocks Metamorphic Rocks Quartzite Proterozoic-PhanerozoicLater Proterozoic-PaleozoicLate Proterozoic-Cambriannone none 2 8.51270258645e+003 3.42722278624e+006Massive to well foliated; contains andalusite, kyanite, or sillimanite, chloritoid, and pyrite 739Qp Coastal Plain Coastal Plain Quaternary Surficial deposits Surficial deposits, undivided Phanerozioc Cenozoic Quaternary none none 14 3.37497937257e+003 6.05834619919e+005Sand, clay, gravel, and peat deposited in marine, fluvial, eolian, and lacustrine environments. Quaternary deposits not shown at altitudes greater than approximately 25 feet above mean sea level (Suffolk Scarp, in part) 740PzZq Charlotte and Milton Belts Charlotte Belt Intrusive Rocks Intrusive Rocks Metamorphosed quartz diorite Phanerozioc Paleozoic Permian none none 5 4.04752026437e+003 9.75785998473e+005Foliated to massive 741PzZu Blue Ridge Belt Blue Ridge Intrusive Rocks Intrusive Rocks Meta-ultramafic rock Phanerozioc Paleozoic Permian none none 5 3.47169454440e+003 5.81429952072e+005Metamorphosed dunite, local peridotite; serpentinite, soapstone, and other altered ultramafic rock. Only larger bodies shown 742CZiv Carolina Slate Belt Carolina Slate Belt Metamorphic rocks Metamorphic Rocks Intermediate metavolcanic rock Proterozoic-PhanerozoicLater Proterozoic-PaleozoicLate Proterozoic-Cambriannone none 5 5.41758104899e+003 1.53593866999e+006Metamorphosed andesitic tuffs and flows, medium to dark grayish green; minor felsic and mafic metavolcanic rock 743Qp Coastal Plain Coastal Plain Quaternary Surficial deposits Surficial deposits, undivided Phanerozioc Cenozoic Quaternary none none 14 1.74940711316e+003 2.02929893762e+005Sand, clay, gravel, and peat deposited in marine, fluvial, eolian, and lacustrine environments. Quaternary deposits not shown at altitudes greater than approximately 25 feet above mean sea level (Suffolk Scarp, in part) 744CZiv Carolina Slate Belt Carolina Slate Belt Metamorphic rocks Metamorphic Rocks Intermediate metavolcanic rock Proterozoic-PhanerozoicLater Proterozoic-PaleozoicLate Proterozoic-Cambriannone none 5 5.63194109882e+003 1.92761257461e+006Metamorphosed andesitic tuffs and flows, medium to dark grayish green; minor felsic and mafic metavolcanic rock 745CZg Charlotte and Milton Belts Charlotte Belt Intrusive Rocks Intrusive Rocks Metamorphosed granitic rock Proterozoic-PhanerozoicLater Proterozoic-PaleozoicLate Proterozoic-Cambriannone none 1 5.99820843842e+003 1.80240350793e+006Megacrystic, well foliated; locally contains hornblende 746Qp Coastal Plain Coastal Plain Quaternary Surficial deposits Surficial deposits, undivided Phanerozioc Cenozoic Quaternary none none 14 8.27468883086e+002 4.86186699186e+004Sand, clay, gravel, and peat deposited in marine, fluvial, eolian, and lacustrine environments. Quaternary deposits not shown at altitudes greater than approximately 25 feet above mean sea level (Suffolk Scarp, in part) 747PzZu Inner Piedmont, Chauga Belt, Smith River Allochthon, and Sauratown MountainInner Piedmont Intrusive Rocks Intrusive Rocks Meta-ultramafic rock Phanerozioc Paleozoic Permian none none 2 2.66691227892e+003 3.47418508868e+005Metamorphosed dunite, local peridotite; serpentinite, soapstone, and other altered ultramafic rock. Only larger bodies shown 748Zsw Blue Ridge Belt Blue Ridge Snowbird Group Sedimentary and Metamorphic RocksWading Branch Formation Proterozoic Late Proterozoic Late Proterozoic none none 20 1.03087205554e+004 4.48010516922e+006Sandy slate to coarse-grained pebbly metagraywacke with local graded bedding. Basal quartz-sericite schist or phyllite 1044CZg Raleigh Belt Raleigh Belt Intrusive Rocks Intrusive Rocks Metamorphosed granitic rock Proterozoic-PhanerozoicLater Proterozoic-PaleozoicLate Proterozoic-Cambrian520-650 7 1 1.29670984526e+004 5.93816971664e+006Megacrystic, well foliated, locally contains hornblende; Vance County suite and Buckhorn granite 1045CZmd Carolina Slate Belt Carolina Slate Belt Metamorphic rocks Metamorphic Rocks Metamudstone and meta-argillite Proterozoic-PhanerozoicLater Proterozoic-PaleozoicLate Proterozoic-Cambriannone none 8 3.22021668129e+004 2.70084323732e+007Thin to thick bedded; bedding plane and axial-planar cleavage common; interbedded with metasandstone, metaconglomerate, and metavolcanic rock. CZmd3 - Floyd Church Formation, CZmd2 - Cid Formation, CZmd1 - Tillery Formation: (southwest of Asheboro) 1046CZam Blue Ridge Belt Blue Ridge Intrusive Rocks Intrusive Rocks Amphibolite Proterozoic-PhanerozoicLater Proterozoic-PaleozoicLate Proterozoic-Cambriannone none 4 2.54152232777e+003 4.18225698353e+005Equigranular, massive to well foliated, dioritic to basaltic dikes and sills; variably metamorphosed 1047SOgg Inner Piedmont, Chauga Belt, Smith River Allochthon, and Sauratown MountainChauga Belt Intrusive Rocks Intrusive Rocks Granite gneiss Phanerozioc Paleozoic Ordovician-Silurian 438 17 7 1.18755054022e+005 1.03682787920e+008Poorly foliated; interlayered with biotite augen gneiss 1048PzZm Charlotte and Milton Belts Charlotte Belt Intrusive Rocks Intrusive Rocks Metamorphosed mafic rock Phanerozioc Paleozoic Permian none none 3 1.70272893470e+004 1.30133557396e+007Metagabbro, metadiorite, and mafic plutonic-volcanic complexes 1052CZbg Inner Piedmont, Chauga Belt, Smith River Allochthon, and Sauratown MountainInner Piedmont Metamorphic rocks Metamorphic Rocks Mica schist Proterozoic-PhanerozoicLater Proterozoic-PaleozoicLate Proterozoic-Cambriannone none 14 7.21770280497e+005 7.65673467967e+008Garnet, staurolite, kyanite, or sillimanite occur locally; lenses and layers of quartz schist, micaceous quartzite, calc-silicate rock, biotite gneiss, amphibolite, and phyllite 1050CZph Eastern Slate Belt Eastern Slate Belt Metamorphic rocks Metamorphic Rocks Phyllite and schist Proterozoic-PhanerozoicLater Proterozoic-PaleozoicLate Proterozoic-Cambriannone none 1 1.08494552243e+005 6.07154631991e+007Minor biotite and pyrite; includes phyllonite, sheared fine-grained metasediment, and metavolcanic rock 1051CZbg Raleigh Belt Raleigh Belt Metamorphic rocks Metamorphic Rocks Biotite gneiss and schist Proterozoic-PhanerozoicLater Proterozoic-PaleozoicLate Proterozoic-Cambriannone none 6 3.51809292387e+004 1.96405144050e+007Inequigranular and megacrystic; in places contains garnet; interlayered and gradational with mica schist and amphibolite; includes small masses of granitic rock 1053ZYbn Blue Ridge Belt Blue Ridge Sedimentary and Metamorphic Rocks Sedimentary and Metamorphic RocksBiotite gneiss Proterozoic Middle-Late Proterozoic Middle-Late Proterozoic none none 8 1.04636278948e+004 3.03384599063e+006Migmatitic; interlayered and gradational with biotite-garnet gneiss and amphibolite; locally abundant quartz and alumino-silicates. Stratigraphic position uncertain 1470Tor Coastal Plain Coastal Plain Tertiary Sedimentary Rocks River Bend Formation Phanerozioc Cenozoic Tertiary none none 8 1.99193651987e+004 1.82430460178e+007Limestone, calcarenite overlain by and intercalated with indurated, sandy, molluscan-mold limestone 1471Km Coastal Plain Coastal Plain Cretaceous Sedimentary Rocks Middendorf Formation Phanerozioc Mesozoic Cretaceous none none 2 1.82039000046e+004 4.98938339624e+006Sand, sandstone, and mudstone, gray to pale gray with an orange cast, mottled; clay balls and iron-cemented concretions common, beds laterally discontinous, cross-bedding common 1472CZam Murphy Belt Murphy Belt Intrusive Rocks Intrusive Rocks Amphibolite Proterozoic-PhanerozoicLater Proterozoic-PaleozoicLate Proterozoic-Cambriannone none 1 2.18454199799e+003 2.11742035255e+005Equigranular, massive to well foliated, dioritic to basaltic dikes and sills; variably metamorphosed 1473Tp Coastal Plain Coastal Plain Tertiary Sedimentary Rocks Pinehurst Formation Phanerozioc Cenozoic Tertiary none none 13 1.04510565019e+005 5.40974231828e+007Sand, medium- to coarse-grained, crossbedding and rhythmic bands of clayey sand common, unconsolidated 1474Qp Coastal Plain Coastal Plain Quaternary Surficial deposits Surficial deposits, undivided Phanerozioc Cenozoic Quaternary none none 14 1.07437996887e+003 8.00495856220e+004Sand, clay, gravel, and peat deposited in marine, fluvial, eolian, and lacustrine environments. Quaternary deposits not shown at altitudes greater than approximately 25 feet above mean sea level (Suffolk Scarp, in part) 1475Zata Blue Ridge Belt Blue Ridge Ashe Metamorphic Suite and Tallulah Falls FormationSedimentary and Metamorphic RocksAmphibolite Proterozoic Late Proterozoic Late Proterozoic none none 10 6.74266776532e+003 1.02707555707e+006Equigranular, massive to well foliated, interlayered, rarely discordant, metamorphosed intrusive and extrusive mafic rock; may include metasedimentary rock 1476Qp Coastal Plain Coastal Plain Quaternary Surficial deposits Surficial deposits, undivided Phanerozioc Cenozoic Quaternary none none 14 1.06567008542e+003 8.47817218157e+004Sand, clay, gravel, and peat deposited in marine, fluvial, eolian, and lacustrine environments. Quaternary deposits not shown at altitudes greater than approximately 25 feet above mean sea level (Suffolk Scarp, in part) 1477Zman Murphy Belt Murphy Belt Metamorphic rocks Metamorphic Rocks Murphy Marble, Andrews Formation, and Nottely Quartzite, undividedProterozoic Late Proterozoic Late Proterozoic none none 4 5.64395277732e+003 8.79449581342e+005Murphy Marble: calcareous to dolomitic; Andrews Formation: calcarous cross-biotite schist; Nottely Quartzite: meta-orthoquartzite with slate 1478Qp Coastal Plain Coastal Plain Quaternary Surficial deposits Surficial deposits, undivided Phanerozioc Cenozoic Quaternary none none 14 1.01596215657e+003 7.40234303406e+004Sand, clay, gravel, and peat deposited in marine, fluvial, eolian, and lacustrine environments. Quaternary deposits not shown at altitudes greater than approximately 25 feet above mean sea level (Suffolk Scarp, in part) 1479ZYba Blue Ridge Belt Blue Ridge Sedimentary and Metamorphic Rocks Sedimentary and Metamorphic RocksAmphibolite Proterozoic Middle-Late Proterozoic Middle-Late Proterozoic none none 7 4.00199176377e+003 4.82092830583e+005Equigranular, massive to well foliated, interlayered, rarely discordant, metamorphosed intrusive and extrusive mafic rock; may include metasedimentary rock 1480Dqd Blue Ridge Belt Blue Ridge Intrusive Rocks Intrusive Rocks Quartz diorite to granodiorite Phanerozioc Paleozoic Devonian 390 4 7 1.65975614815e+004 4.24689598595e+006Contains biotite, muscovite, and xenocrysts. Includes Whiteside Mountain, Stone Mountain, Mount Airy, Spruce Pine, and other smaller plutons 454Tt Coastal Plain Coastal Plain Tertiary Sedimentary Rocks Terrace deposites and upland sediment Phanerozioc Cenozoic Tertiary none none 12 1.38236597717e+003 1.35766052194e+005Gravel, clayey sand, and sand, minor iron-oxide cemented sandstone 455CZfv Eastern Slate Belt Eastern Slate Belt Metamorphic rocks Metamorphic Rocks Felsic metavolcanic rock Proterozoic-PhanerozoicLater Proterozoic-PaleozoicLate Proterozoic-Cambriannone none 6 1.52235479632e+004 4.12764009641e+006Metamorphosed dacitic to rhyolitic flows and tuffs, light gray to greenish gray; interbedded with mafic and intermediate metavolcanic rock, meta-argillite, and metamudstone 353Zgmw Grandfather Mountain Window Grandfather Mountain Window Grandfather Mountain Formation Metamorphic Rocks Metagraywacke Proterozoic Late Proterozoic Late Proterozoic none none 4 3.71933076871e+003 5.25377268530e+005Cross-bedding and graded bedding common, locally conglomeratic; interlayered with metasiltstone and phyllite 456Tt Coastal Plain Coastal Plain Tertiary Sedimentary Rocks Terrace deposites and upland sediment Phanerozioc Cenozoic Tertiary none none 12 5.45323828591e+003 1.37831833893e+006Gravel, clayey sand, and sand, minor iron-oxide cemented sandstone 457CZiv Carolina Slate Belt Carolina Slate Belt Metamorphic rocks Metamorphic Rocks Intermediate metavolcanic rock Proterozoic-PhanerozoicLater Proterozoic-PaleozoicLate Proterozoic-Cambriannone none 5 1.36331532039e+004 4.46926031125e+006Metamorphosed andesitic tuffs and flows, medium to dark grayish green; minor felsic and mafic metavolcanic rock 458Zata Blue Ridge Belt Blue Ridge Ashe Metamorphic Suite and Tallulah Falls FormationSedimentary and Metamorphic RocksAmphibolite Proterozoic Late Proterozoic Late Proterozoic none none 10 7.57422009974e+004 5.51907919216e+007Equigranular, massive to well foliated, interlayered, rarely discordant, metamorphosed intrusive and extrusive mafic rock; may include metasedimentary rock 459Zgmg Grandfather Mountain Window Grandfather Mountain Window Grandfather Mountain Formation Metamorphic Rocks Greenstone Proterozoic Late Proterozoic Late Proterozoic none none 7 1.00302097325e+004 1.95997821104e+006Schistose to massive, amygdaloidal; interlayered with metasedimentary rocks. Includes Montezuma Member (metabasalt) in upper part 460CZbg Inner Piedmont, Chauga Belt, Smith River Allochthon, and Sauratown MountainInner Piedmont Metamorphic rocks Metamorphic Rocks Biotite gneiss and schist Proterozoic-PhanerozoicLater Proterozoic-PaleozoicLate Proterozoic-Cambriannone none 16 6.00865175618e+004 8.96336707338e+007Inequigranular, locally abundant potassic feldspar and garnet; interlayered and gradational with calc-silicate rock, sillimanite-mica schist, and amphibolite. Contains small masses of granitic rock 461CZmd Carolina Slate Belt Carolina Slate Belt Metamorphic rocks Metamorphic Rocks Metamudstone and meta-argillite Proterozoic-PhanerozoicLater Proterozoic-PaleozoicLate Proterozoic-Cambriannone none 8 2.39744484511e+004 5.00527267443e+006Thin to thick bedded; bedding plane and axial-planar cleavage common; interbedded with metasandstone, metaconglomerate, and metavolcanic rock. CZmd3 - Floyd Church Formation, CZmd2 - Cid Formation, CZmd1 - Tillery Formation: (southwest of Asheboro) 471PzZu Blue Ridge Belt Blue Ridge Intrusive Rocks Intrusive Rocks Meta-ultramafic rock Phanerozioc Paleozoic Permian none none 5 1.78137829540e+003 1.64501089022e+005Metamorphosed dunite, local peridotite; serpentinite, soapstone, and other altered ultramafic rock. Only larger bodies shown 472Zwc Blue Ridge Belt Blue Ridge Ocoee Supergroup Sedimentary and Metamorphic RocksWalden Creek Group, Undivided Proterozoic Late Proterozoic Late Proterozoic none none 36 4.93818694669e+004 6.88680499385e+007Slate to metasiltstone, local limy beds and pods; interbedded with quartz-pebble metaconglomerate and metasandstone 473Ybgg Grandfather Mountain Window Grandfather Mountain Window Metamorphic rocks Metamorphic Rocks Biotite granitic gneiss Proterozoic Middle Proterozoic Middle Proterozoic 950-125014 1 6.14110107479e+003 6.34978691168e+005Contains paragneiss and granitic to quartz monzonitic orthogneiss; locally schistose and mylonitic. Locally includes tectonic slices, infolded remnants, or recrystallized equivalents of the Grandfather Mountain Formation. Equivalent to the Wilson Creek Gneiss 474Zlm Grandfather Mountain Window Grandfather Mountain Window Intrusive Rocks Intrusive Rocks Linville Metadiabase Proterozoic Late Proterozoic Late Proterozoic none none 2 9.80080718082e+003 1.41076236785e+006Metadiabase, greenstone, and amphibolite dikes and sills; massive to schistose 475PzZu Carolina Slate Belt Carolina Slate Belt Intrusive Rocks Intrusive Rocks Meta-ultramafic rock Phanerozioc Paleozoic Permian none none 2 4.91610881880e+003 9.44512297891e+005Metamorphosed dunite, local peridotite; serpentinite, soapstone, and other altered ultramafic rock. Only larger bodies shown 476PzZu Blue Ridge Belt Blue Ridge Intrusive Rocks Intrusive Rocks Meta-ultramafic rock Phanerozioc Paleozoic Permian none none 5 2.41452499682e+003 4.19244695804e+005Metamorphosed dunite, local peridotite; serpentinite, soapstone, and other altered ultramafic rock. Only larger bodies shown 477PzZg Carolina Slate Belt Carolina Slate Belt Intrusive Rocks Intrusive Rocks Metamorphosed gabbro and diorite Phanerozioc Paleozoic Permian none none 4 1.25181240239e+005 1.61213512708e+008Foliated to masive 478Qp Coastal Plain Coastal Plain Quaternary Surficial deposits Surficial deposits, undivided Phanerozioc Cenozoic Quaternary none none 14 1.18444790828e+003 1.03325362694e+005Sand, clay, gravel, and peat deposited in marine, fluvial, eolian, and lacustrine environments. Quaternary deposits not shown at altitudes greater than approximately 25 feet above mean sea level (Suffolk Scarp, in part) 479Jd Triassic Basins Durham-Sanford Subbasins Intrusive Rocks Intrusive Rocks Diabase Phanerozioc Mesozoic Jurassic none none 1 1.82317913494e+004 9.65174799523e+006Dikes, gray to black 480CZph Charlotte and Milton Belts Charlotte Belt Metamorphic rocks Metamorphic Rocks Phyllite and schist Proterozoic-PhanerozoicLater Proterozoic-PaleozoicLate Proterozoic-Cambriannone none 1 3.39192439506e+003 7.28271832992e+005Minor biotite, pyrite, and sillimanite; includes minor quartzite 481Zlm Grandfather Mountain Window Grandfather Mountain Window Intrusive Rocks Intrusive Rocks Linville Metadiabase Proterozoic Late Proterozoic Late Proterozoic none none 2 5.43822051239e+003 9.89431574069e+005Metadiabase, greenstone, and amphibolite dikes and sills; massive to schistose 482Tt Coastal Plain Coastal Plain Tertiary Sedimentary Rocks Terrace deposites and upland sediment Phanerozioc Cenozoic Tertiary none none 12 5.99365268076e+004 3.28332412359e+007Gravel, clayey sand, and sand, minor iron-oxide cemented sandstone 483Qp Coastal Plain Coastal Plain Quaternary Surficial deposits Surficial deposits, undivided Phanerozioc Cenozoic Quaternary none none 14 1.32758725583e+003 1.06466215156e+005Sand, clay, gravel, and peat deposited in marine, fluvial, eolian, and lacustrine environments. Quaternary deposits not shown at altitudes greater than approximately 25 feet above mean sea level (Suffolk Scarp, in part) 484Qp Coastal Plain Coastal Plain Quaternary Surficial deposits Surficial deposits, undivided Phanerozioc Cenozoic Quaternary none none 14 1.92168289855e+003 2.34315695981e+005Sand, clay, gravel, and peat deposited in marine, fluvial, eolian, and lacustrine environments. Quaternary deposits not shown at altitudes greater than approximately 25 feet above mean sea level (Suffolk Scarp, in part) 485PzZu Raleigh Belt Raleigh Belt Intrusive Rocks Intrusive Rocks Meta-ultramafic rock Phanerozioc Paleozoic Permian none none 2 3.48956102479e+003 6.43612052419e+005Metamorphosed dunite, local peridotite; serpentinite, soapstone, and other altered ultramafic rock. Only larger bodies shown 486Ygg Blue Ridge Belt Blue Ridge Metamorphic rocks Sedimentary and Metamorphic RocksGranodiorite gneiss Proterozoic Middle Proterozoic Middle Proterozoic 1175 2 6 1.58772160406e+005 1.37549588214e+008Greenish gray to pinkish gray, porphyroclastic to mylonitic; epidote, sericite, and chlorite common 487Qp Coastal Plain Coastal Plain Quaternary Surficial deposits Surficial deposits, undivided Phanerozioc Cenozoic Quaternary none none 14 2.23443742578e+003 3.04756415475e+005Sand, clay, gravel, and peat deposited in marine, fluvial, eolian, and lacustrine environments. Quaternary deposits not shown at altitudes greater than approximately 25 feet above mean sea level (Suffolk Scarp, in part) 488CZph Charlotte and Milton Belts Charlotte Belt Metamorphic rocks Metamorphic Rocks Phyllite and schist Proterozoic-PhanerozoicLater Proterozoic-PaleozoicLate Proterozoic-Cambriannone none 1 3.83032128199e+003 1.07963673869e+006Minor biotite, pyrite, and sillimanite; includes minor quartzite 489PzZm Charlotte and Milton Belts Charlotte Belt Intrusive Rocks Intrusive Rocks Metamorphosed mafic rock Phanerozioc Paleozoic Permian none none 3 1.61150058228e+004 1.37266692210e+007Metagabbro, metadiorite, and mafic plutonic-volcanic complexes 490Zg Grandfather Mountain Window Grandfather Mountain Window Intrusive Rocks Intrusive Rocks Metamorphosed granitic rock Proterozoic Late Proterozoic Late Proterozoic 680-710 25,27 1 6.30794413187e+003 1.28352275657e+006Massive to foliated, locally mylonitic. Equivalent to Brown Mountain Granite 491Zgmg Grandfather Mountain Window Grandfather Mountain Window Grandfather Mountain Formation Metamorphic Rocks Greenstone Proterozoic Late Proterozoic Late Proterozoic none none 7 2.22767514772e+003 3.31444025298e+005Schistose to massive, amygdaloidal; interlayered with metasedimentary rocks. Includes Montezuma Member (metabasalt) in upper part 492CZfv Carolina Slate Belt Carolina Slate Belt Metamorphic rocks Metamorphic Rocks Felsic metavolcanic rock Proterozoic-PhanerozoicLater Proterozoic-PaleozoicLate Proterozoic-Cambriannone none 6 7.28180919139e+003 3.21408340364e+006Metamorphosed dacitic to rhyolitic flows and tuffs, light gray to greenish gray; interbedded with mafic and intermediate metavolcanic rock, meta-argillite, and metamudstone. CZfv2 - Cid Formation (southwest of Asheboro), CZfv1 - Uwharrie Formation (at Asheboro and to south) 493Qp Coastal Plain Coastal Plain Quaternary Surficial deposits Surficial deposits, undivided Phanerozioc Cenozoic Quaternary none none 14 1.84480191940e+003 2.49935316957e+005Sand, clay, gravel, and peat deposited in marine, fluvial, eolian, and lacustrine environments. Quaternary deposits not shown at altitudes greater than approximately 25 feet above mean sea level (Suffolk Scarp, in part) 494CZiv Carolina Slate Belt Carolina Slate Belt Metamorphic rocks Metamorphic Rocks Intermediate metavolcanic rock Proterozoic-PhanerozoicLater Proterozoic-PaleozoicLate Proterozoic-Cambriannone none 5 1.09329253573e+004 4.56727119682e+006Metamorphosed andesitic tuffs and flows, medium to dark grayish green; minor felsic and mafic metavolcanic rock 495Tt Coastal Plain Coastal Plain Tertiary Sedimentary Rocks Terrace deposites and upland sediment Phanerozioc Cenozoic Tertiary none none 12 8.27670019114e+003 2.15862915382e+006Gravel, clayey sand, and sand, minor iron-oxide cemented sandstone 496CZmv Carolina Slate Belt Carolina Slate Belt Metamorphic rocks Metamorphic Rocks Mafic metavolcanic rock Proterozoic-PhanerozoicLater Proterozoic-PaleozoicLate Proterozoic-Cambriannone none 7 1.64436333344e+004 7.23012427773e+006Metamorphosed basaltic flows and tuffs, dark green to black; interbedded with felsic and intermediate metavolcanic rock and metamudstone. CZmv1 - Cid Formation (southwest of Asheboro) 497CZiv Carolina Slate Belt Carolina Slate Belt Metamorphic rocks Metamorphic Rocks Intermediate metavolcanic rock Proterozoic-PhanerozoicLater Proterozoic-PaleozoicLate Proterozoic-Cambriannone none 5 3.40266896914e+004 1.08839954963e+007Metamorphosed andesitic tuffs and flows, medium to dark grayish green; minor felsic and mafic metavolcanic rock 498CZms Inner Piedmont, Chauga Belt, Smith River Allochthon, and Sauratown MountainInner Piedmont Metamorphic rocks Metamorphic Rocks Mica schist Proterozoic-PhanerozoicLater Proterozoic-PaleozoicLate Proterozoic-Cambriannone none 14 9.61229671464e+004 7.61735058207e+007Garnet, staurolite, kyanite, or sillimanite occur locally; lenses and layers of quartz schist, micaceous quartzite, calc-silicate rock, biotite gneiss, amphibolite, and phyllite 499Qp Coastal Plain Coastal Plain Quaternary Surficial deposits Surficial deposits, undivided Phanerozioc Cenozoic Quaternary none none 14 4.60322961913e+003 8.48404942853e+005Sand, clay, gravel, and peat deposited in marine, fluvial, eolian, and lacustrine environments. Quaternary deposits not shown at altitudes greater than approximately 25 feet above mean sea level (Suffolk Scarp, in part) 500Jd Triassic Basins Durham-Sanford Subbasins Intrusive Rocks Intrusive Rocks Diabase Phanerozioc Mesozoic Jurassic none none 1 9.00528783391e+003 3.04703140158e+006Dikes, gray to black 501Qp Coastal Plain Coastal Plain Quaternary Surficial deposits Surficial deposits, undivided Phanerozioc Cenozoic Quaternary none none 14 1.64315257210e+004 7.60317840673e+006Sand, clay, gravel, and peat deposited in marine, fluvial, eolian, and lacustrine environments. Quaternary deposits not shown at altitudes greater than approximately 25 feet above mean sea level (Suffolk Scarp, in part) 502Jd Triassic Basins Durham-Sanford Subbasins Intrusive Rocks Intrusive Rocks Diabase Phanerozioc Mesozoic Jurassic none none 1 3.92470272757e+003 7.44861652141e+005Dikes, gray to black 503CZiv Carolina Slate Belt Carolina Slate Belt Metamorphic rocks Metamorphic Rocks Intermediate metavolcanic rock Proterozoic-PhanerozoicLater Proterozoic-PaleozoicLate Proterozoic-Cambriannone none 5 2.42328894706e+004 1.83811593271e+007Metamorphosed andesitic tuffs and flows, medium to dark grayish green; minor felsic and mafic metavolcanic rock 504CZph Charlotte and Milton Belts Charlotte Belt Metamorphic rocks Metamorphic Rocks Phyllite and schist Proterozoic-PhanerozoicLater Proterozoic-PaleozoicLate Proterozoic-Cambriannone none 1 7.00650396614e+003 2.50886147648e+006Minor biotite, pyrite, and sillimanite; includes minor quartzite 505Zss Blue Ridge Belt Blue Ridge Ocoee Supergroup Sedimentary and Metamorphic RocksSandsuck Formation Proterozoic Late Proterozoic Late Proterozoic none none 35 1.15424399864e+004 3.96501777679e+006Slate and metasiltstone, dark green to black. Metaconglomerate lentils in upper part; calcareous metasandstone, sandy metalimestone, and quartzite in lower part 506PzZg Carolina Slate Belt Carolina Slate Belt Intrusive Rocks Intrusive Rocks Metamorphosed gabbro and diorite Phanerozioc Paleozoic Permian none none 4 1.63728716858e+004 1.72989765590e+007Foliated to masive 507Zg Blue Ridge Belt Blue Ridge Intrusive Rocks Intrusive Rocks Metamorphosed granitic rock Proterozoic Late Proterozoic Late Proterozoic 680-710 25,27 3 5.52464582431e+003 9.06915981168e+005Massive to foliated, locally mylonitic. Beech, Crossnore, Brown Mountain, Lansing, and other granitic bodies 508Jd Triassic Basins Durham-Sanford Subbasins Intrusive Rocks Intrusive Rocks Diabase Phanerozioc Mesozoic Jurassic none none 1 1.34042010429e+004 7.39696468883e+006Dikes, gray to black 509PzZg Raleigh Belt Raleigh Belt Intrusive Rocks Intrusive Rocks Metamorphosed gabbro and diorite Phanerozioc Paleozoic Permian none none 3 4.46042881478e+004 2.55596888862e+007Foliated to masive 510CZmv Carolina Slate Belt Carolina Slate Belt Metamorphic rocks Metamorphic Rocks Mafic metavolcanic rock Proterozoic-PhanerozoicLater Proterozoic-PaleozoicLate Proterozoic-Cambriannone none 7 5.51554225015e+003 1.40714590909e+006Metamorphosed basaltic flows and tuffs, dark green to black; interbedded with felsic and intermediate metavolcanic rock and metamudstone. CZmv1 - Cid Formation (southwest of Asheboro) 511CZfv Carolina Slate Belt Carolina Slate Belt Metamorphic rocks Metamorphic Rocks Felsic metavolcanic rock Proterozoic-PhanerozoicLater Proterozoic-PaleozoicLate Proterozoic-Cambriannone none 6 1.03976648108e+004 2.63738513521e+006Metamorphosed dacitic to rhyolitic flows and tuffs, light gray to greenish gray; interbedded with mafic and intermediate metavolcanic rock, meta-argillite, and metamudstone. CZfv2 - Cid Formation (southwest of Asheboro), CZfv1 - Uwharrie Formation (at Asheboro and to south) 512Jd Triassic Basins Durham-Sanford Subbasins Intrusive Rocks Intrusive Rocks Diabase Phanerozioc Mesozoic Jurassic none none 1 7.54492139577e+003 2.84337209820e+006Dikes, gray to black 513Zata Blue Ridge Belt Blue Ridge Ashe Metamorphic Suite and Tallulah Falls FormationSedimentary and Metamorphic RocksAmphibolite Proterozoic Late Proterozoic Late Proterozoic none none 10 1.34504093489e+004 2.31718639669e+006Equigranular, massive to well foliated, interlayered, rarely discordant, metamorphosed intrusive and extrusive mafic rock; may include metasedimentary rock 514Zata Blue Ridge Belt Blue Ridge Ashe Metamorphic Suite and Tallulah Falls FormationSedimentary and Metamorphic RocksAmphibolite Proterozoic Late Proterozoic Late Proterozoic none none 10 3.77126573239e+004 4.28745055136e+007Equigranular, massive to well foliated, interlayered, rarely discordant, metamorphosed intrusive and extrusive mafic rock; may include metasedimentary rock 515CZg Carolina Slate Belt Carolina Slate Belt Intrusive Rocks Intrusive Rocks Metamorphosed granitic rock Proterozoic-PhanerozoicLater Proterozoic-PaleozoicLate Proterozoic-Cambrian520-650 3,21,9,23,28,15 1 1.67932084976e+004 4.78657741921e+006Megacrystic, well foliated; locally contains hornblende. Chapel Hill, Chatham, Farrington, Meadow Flats, Mt. Moriah, Parks Crossroads plutons, and Roxboro and Vance County suites 516CZg Carolina Slate Belt Carolina Slate Belt Intrusive Rocks Intrusive Rocks Metamorphosed granitic rock Proterozoic-PhanerozoicLater Proterozoic-PaleozoicLate Proterozoic-Cambrian520-650 3,21,9,23,28,15 1 5.88997762210e+003 2.57932561497e+006Megacrystic, well foliated; locally contains hornblende. Chapel Hill, Chatham, Farrington, Meadow Flats, Mt. Moriah, Parks Crossroads plutons, and Roxboro and Vance County suites 517OCg Inner Piedmont, Chauga Belt, Smith River Allochthon, and Sauratown MountainInner Piedmont Intrusive Rocks Intrusive Rocks Metamorphosed granitic rock Phanerozioc Paleozoic Cambrian-Ordovician 455-540 10 5 3.42421556837e+004 1.58896578378e+007Equigranular to megacrystic, foliated to massive. Includes Toluca Granite 518CZph Charlotte and Milton Belts Charlotte Belt Metamorphic rocks Metamorphic Rocks Phyllite and schist Proterozoic-PhanerozoicLater Proterozoic-PaleozoicLate Proterozoic-Cambriannone none 1 4.10406125821e+004 3.54469728264e+007Minor biotite, pyrite, and sillimanite; includes minor quartzite 519PzZg Carolina Slate Belt Carolina Slate Belt Intrusive Rocks Intrusive Rocks Metamorphosed gabbro and diorite Phanerozioc Paleozoic Permian none none 4 2.72437838398e+004 1.74527390691e+007Foliated to masive 520Dqd Blue Ridge Belt Blue Ridge Intrusive Rocks Intrusive Rocks Quartz diorite to granodiorite Phanerozioc Paleozoic Devonian 390 4 7 1.63897695595e+004 3.23533267292e+006Contains biotite, muscovite, and xenocrysts. Includes Whiteside Mountain, Stone Mountain, Mount Airy, Spruce Pine, and other smaller plutons 521Ccl Grandfather Mountain Window Grandfather Mountain Window Chilhowee Group Metamorphic Rocks Lower Chilhowee Group Phanerozioc Paleozoic Cambrian none none 9 1.22120149658e+005 6.58402998804e+007Feldspathic arenite, white to yellowish gray. Minor silty shale, feldspathic metasiltstone, and metaconglomerate in lower part 522Zata Blue Ridge Belt Blue Ridge Ashe Metamorphic Suite and Tallulah Falls FormationSedimentary and Metamorphic RocksAmphibolite Proterozoic Late Proterozoic Late Proterozoic none none 10 8.44970824380e+003 1.47927695969e+006Equigranular, massive to well foliated, interlayered, rarely discordant, metamorphosed intrusive and extrusive mafic rock; may include metasedimentary rock 523DOgb Charlotte and Milton Belts Charlotte Belt Intrusive Rocks Intrusive Rocks Gabbro of Concord Plutonic Suite Phanerozioc Paleozoic Ordovician-Devonian 399-479 24 8 2.74628179395e+004 3.96041604743e+007Barber, Concord, Farmington, Mecklenburg, and Weddington intrusives 524Tt Coastal Plain Coastal Plain Tertiary Sedimentary Rocks Terrace deposites and upland sediment Phanerozioc Cenozoic Tertiary none none 12 1.19698718118e+004 3.25668624709e+006Gravel, clayey sand, and sand, minor iron-oxide cemented sandstone 525CZph Charlotte and Milton Belts Charlotte Belt Metamorphic rocks Metamorphic Rocks Phyllite and schist Proterozoic-PhanerozoicLater Proterozoic-PaleozoicLate Proterozoic-Cambriannone none 1 3.49198450028e+003 7.38901307754e+005Minor biotite, pyrite, and sillimanite; includes minor quartzite 526PzZu Raleigh Belt Raleigh Belt Intrusive Rocks Intrusive Rocks Meta-ultramafic rock Phanerozioc Paleozoic Permian none none 2 5.46046742528e+003 1.03955812559e+006Metamorphosed dunite, local peridotite; serpentinite, soapstone, and other altered ultramafic rock. Only larger bodies shown 527CZiv Carolina Slate Belt Carolina Slate Belt Metamorphic rocks Metamorphic Rocks Intermediate metavolcanic rock Proterozoic-PhanerozoicLater Proterozoic-PaleozoicLate Proterozoic-Cambriannone none 5 1.95332060975e+004 9.39949931091e+006Metamorphosed andesitic tuffs and flows, medium to dark grayish green; minor felsic and mafic metavolcanic rock 528Zlm Grandfather Mountain Window Grandfather Mountain Window Intrusive Rocks Intrusive Rocks Linville Metadiabase Proterozoic Late Proterozoic Late Proterozoic none none 2 4.95565984800e+003 6.76254736796e+005Metadiabase, greenstone, and amphibolite dikes and sills; massive to schistose 529Ccu Grandfather Mountain Window Grandfather Mountain Window Chilhowee Group Metamorphic Rocks Upper Chilhowee Group Phanerozioc Paleozoic Cambrian none none 10 5.47936920363e+004 3.71280834670e+007Vitreous quartzite; white to light gray; interbedded sand metasiltstone and slate 530Zata Blue Ridge Belt Blue Ridge Ashe Metamorphic Suite and Tallulah Falls FormationSedimentary and Metamorphic RocksAmphibolite Proterozoic Late Proterozoic Late Proterozoic none none 10 1.48915829915e+004 3.59766724987e+006Equigranular, massive to well foliated, interlayered, rarely discordant, metamorphosed intrusive and extrusive mafic rock; may include metasedimentary rock 531Zata Blue Ridge Belt Blue Ridge Ashe Metamorphic Suite and Tallulah Falls FormationSedimentary and Metamorphic RocksAmphibolite Proterozoic Late Proterozoic Late Proterozoic none none 10 5.79353145500e+004 1.89044860202e+007Equigranular, massive to well foliated, interlayered, rarely discordant, metamorphosed intrusive and extrusive mafic rock; may include metasedimentary rock 532Chg Inner Piedmont, Chauga Belt, Smith River Allochthon, and Sauratown MountainChauga Belt Intrusive Rocks Intrusive Rocks Henderson Gneiss Phanerozioc Paleozoic Cambrian 524 10 4 2.71874368096e+004 6.63638051591e+006Monzonitic to granodioritic, inequigranular 533Chg Inner Piedmont, Chauga Belt, Smith River Allochthon, and Sauratown MountainChauga Belt Intrusive Rocks Intrusive Rocks Henderson Gneiss Phanerozioc Paleozoic Cambrian 524 10 4 1.21385496515e+004 2.57388059722e+006Monzonitic to granodioritic, inequigranular 534Zlm Grandfather Mountain Window Grandfather Mountain Window Intrusive Rocks Intrusive Rocks Linville Metadiabase Proterozoic Late Proterozoic Late Proterozoic none none 2 4.13088031640e+003 6.07423807996e+005Metadiabase, greenstone, and amphibolite dikes and sills; massive to schistose 535CZmd Carolina Slate Belt Carolina Slate Belt Metamorphic rocks Metamorphic Rocks Metamudstone and meta-argillite Proterozoic-PhanerozoicLater Proterozoic-PaleozoicLate Proterozoic-Cambriannone none 8 4.43357539650e+003 1.03126824797e+006Thin to thick bedded; bedding plane and axial-planar cleavage common; interbedded with metasandstone, metaconglomerate, and metavolcanic rock. CZmd3 - Floyd Church Formation, CZmd2 - Cid Formation, CZmd1 - Tillery Formation: (southwest of Asheboro) 536Zgmu Grandfather Mountain Window Grandfather Mountain Window Grandfather Mountain Formation Metamorphic Rocks Felsic metavolcanic rocks and metasedimentary rock Proterozoic Late Proterozoic Late Proterozoic 820 26 3 1.48755814924e+004 5.86369727461e+006Tentatively correlated with Grandfather Mountain Formation 537Qp Coastal Plain Coastal Plain Quaternary Surficial deposits Surficial deposits, undivided Phanerozioc Cenozoic Quaternary none none 14 1.03918489838e+006 5.03098665270e+009Sand, clay, gravel, and peat deposited in marine, fluvial, eolian, and lacustrine environments. Quaternary deposits not shown at altitudes greater than approximately 25 feet above mean sea level (Suffolk Scarp, in part) 553OCg Inner Piedmont, Chauga Belt, Smith River Allochthon, and Sauratown MountainInner Piedmont Intrusive Rocks Intrusive Rocks Metamorphosed granitic rock Phanerozioc Paleozoic Cambrian-Ordovician 455-540 10 5 2.75713358927e+004 1.65487945511e+007Equigranular to megacrystic, foliated to massive. Includes Toluca Granite 554Qp Coastal Plain Coastal Plain Quaternary Surficial deposits Surficial deposits, undivided Phanerozioc Cenozoic Quaternary none none 14 2.28160202671e+004 1.61804816818e+007Sand, clay, gravel, and peat deposited in marine, fluvial, eolian, and lacustrine environments. Quaternary deposits not shown at altitudes greater than approximately 25 feet above mean sea level (Suffolk Scarp, in part) 555PzZu Blue Ridge Belt Blue Ridge Intrusive Rocks Intrusive Rocks Meta-ultramafic rock Phanerozioc Paleozoic Permian none none 5 2.83220843925e+003 4.93778367641e+005Metamorphosed dunite, local peridotite; serpentinite, soapstone, and other altered ultramafic rock. Only larger bodies shown 556Zss Blue Ridge Belt Hot Springs Window Ocoee Supergroup Sedimentary and Metamorphic RocksSandsuck Formation Proterozoic Late Proterozoic Late Proterozoic none none 35 1.75195510601e+004 1.01262097552e+007Slate and metasiltstone, dark green to black. Metaconglomerate lentils in upper part; calcareous metasandstone, sandy metalimestone, and quartzite in lower part 557CZfv Eastern Slate Belt Eastern Slate Belt Metamorphic rocks Metamorphic Rocks Felsic metavolcanic rock Proterozoic-PhanerozoicLater Proterozoic-PaleozoicLate Proterozoic-Cambriannone none 6 2.53375801374e+005 3.53697376826e+008Metamorphosed dacitic to rhyolitic flows and tuffs, light gray to greenish gray; interbedded with mafic and intermediate metavolcanic rock, meta-argillite, and metamudstone 558CZab Inner Piedmont, Chauga Belt, Smith River Allochthon, and Sauratown MountainInner Piedmont Metamorphic rocks Metamorphic Rocks Amphibolite and biotite gneiss Proterozoic-PhanerozoicLater Proterozoic-PaleozoicLate Proterozoic-Cambriannone none 13 3.39876804913e+004 1.48599534926e+007Interlayered; minor layers and lenses of hornblende gneiss, metagabbro, mica schist, and granitic rock 559Zlm Grandfather Mountain Window Grandfather Mountain Window Intrusive Rocks Intrusive Rocks Linville Metadiabase Proterozoic Late Proterozoic Late Proterozoic none none 2 3.15630124269e+003 4.20242048982e+005Metadiabase, greenstone, and amphibolite dikes and sills; massive to schistose 560Zata Blue Ridge Belt Blue Ridge Ashe Metamorphic Suite and Tallulah Falls FormationSedimentary and Metamorphic RocksAmphibolite Proterozoic Late Proterozoic Late Proterozoic none none 10 1.47777427324e+004 5.54155532088e+006Equigranular, massive to well foliated, interlayered, rarely discordant, metamorphosed intrusive and extrusive mafic rock; may include metasedimentary rock 561Zs Blue Ridge Belt Blue Ridge Sedimentary and Metamorphic Rocks Sedimentary and Metamorphic RocksSnowbird Group, Undivided Proterozoic Late Proterozoic Late Proterozoic none none 24 1.78229541927e+004 1.29063058094e+007Feldspathic metasiltstone, metasandstone, and phyllite. Basal schist contains lenses of quartz-pebble conglomerate 571PzZu Raleigh Belt Raleigh Belt Intrusive Rocks Intrusive Rocks Meta-ultramafic rock Phanerozioc Paleozoic Permian none none 2 4.18922443554e+003 7.35993012122e+005Metamorphosed dunite, local peridotite; serpentinite, soapstone, and other altered ultramafic rock. Only larger bodies shown 572CZbg Inner Piedmont, Chauga Belt, Smith River Allochthon, and Sauratown MountainInner Piedmont Metamorphic rocks Metamorphic Rocks Biotite gneiss and schist Proterozoic-PhanerozoicLater Proterozoic-PaleozoicLate Proterozoic-Cambriannone none 16 1.62667123196e+004 1.03784939494e+007Inequigranular, locally abundant potassic feldspar and garnet; interlayered and gradational with calc-silicate rock, sillimanite-mica schist, and amphibolite. Contains small masses of granitic rock 573CZiv Carolina Slate Belt Carolina Slate Belt Metamorphic rocks Metamorphic Rocks Intermediate metavolcanic rock Proterozoic-PhanerozoicLater Proterozoic-PaleozoicLate Proterozoic-Cambriannone none 5 8.87973643272e+003 3.12640396159e+006Metamorphosed andesitic tuffs and flows, medium to dark grayish green; minor felsic and mafic metavolcanic rock 574PzZu Raleigh Belt Raleigh Belt Intrusive Rocks Intrusive Rocks Meta-ultramafic rock Phanerozioc Paleozoic Permian none none 2 6.55109556241e+003 1.29981593148e+006Metamorphosed dunite, local peridotite; serpentinite, soapstone, and other altered ultramafic rock. Only larger bodies shown 575CZg Carolina Slate Belt Carolina Slate Belt Intrusive Rocks Intrusive Rocks Metamorphosed granitic rock Proterozoic-PhanerozoicLater Proterozoic-PaleozoicLate Proterozoic-Cambrian520-650 3,21,9,23,28,15 1 6.13428455886e+003 1.69497578545e+006Megacrystic, well foliated; locally contains hornblende. Chapel Hill, Chatham, Farrington, Meadow Flats, Mt. Moriah, Parks Crossroads plutons, and Roxboro and Vance County suites 576Zata Blue Ridge Belt Blue Ridge Ashe Metamorphic Suite and Tallulah Falls FormationSedimentary and Metamorphic RocksAmphibolite Proterozoic Late Proterozoic Late Proterozoic none none 10 8.22825946040e+003 1.71379015299e+006Equigranular, massive to well foliated, interlayered, rarely discordant, metamorphosed intrusive and extrusive mafic rock; may include metasedimentary rock 577PzZg Carolina Slate Belt Carolina Slate Belt Intrusive Rocks Intrusive Rocks Metamorphosed gabbro and diorite Phanerozioc Paleozoic Permian none none 4 1.60260230429e+004 6.37423080126e+006Foliated to masive 578Dqd Blue Ridge Belt Blue Ridge Intrusive Rocks Intrusive Rocks Quartz diorite to granodiorite Phanerozioc Paleozoic Devonian 390 4 7 5.88170735685e+003 1.14872148515e+006Contains biotite, muscovite, and xenocrysts. Includes Whiteside Mountain, Stone Mountain, Mount Airy, Spruce Pine, and other smaller plutons 579CZve Carolina Slate Belt Carolina Slate Belt Metamorphic rocks Metamorphic Rocks Metavolcanic epi-clastic rock Proterozoic-PhanerozoicLater Proterozoic-PaleozoicLate Proterozoic-Cambriannone none 3 2.74110876819e+004 1.47953567085e+007Metamorphosed argillite, mudstone, volcanic sandstone, conglomerate, and volcanic rock 580CZve Carolina Slate Belt Carolina Slate Belt Metamorphic rocks Metamorphic Rocks Metavolcanic epi-clastic rock Proterozoic-PhanerozoicLater Proterozoic-PaleozoicLate Proterozoic-Cambriannone none 3 1.25849362298e+004 4.38058669059e+006Metamorphosed argillite, mudstone, volcanic sandstone, conglomerate, and volcanic rock 581Ccl Blue Ridge Belt Hot Springs Window Chilhowee Group Sedimentary and Metamorphic RocksLower Chilhowee Group Phanerozioc Paleozoic Cambrian none none 37 1.34806428431e+004 8.46769547861e+006Feldspathic arenite, white to yellowish gray. Minor silty shale, feldspathic siltstone, and conglomerate in lower part. Includes Unicoi Formation of Hot Springs window 582Dqd Blue Ridge Belt Blue Ridge Intrusive Rocks Intrusive Rocks Quartz diorite to granodiorite Phanerozioc Paleozoic Devonian 390 4 7 3.42087106807e+003 5.56547497572e+005Contains biotite, muscovite, and xenocrysts. Includes Whiteside Mountain, Stone Mountain, Mount Airy, Spruce Pine, and other smaller plutons 583CZve Carolina Slate Belt Carolina Slate Belt Metamorphic rocks Metamorphic Rocks Metavolcanic epi-clastic rock Proterozoic-PhanerozoicLater Proterozoic-PaleozoicLate Proterozoic-Cambriannone none 3 9.56411247941e+004 9.49551334543e+007Metamorphosed argillite, mudstone, volcanic sandstone, conglomerate, and volcanic rock 584CZbg Raleigh Belt Raleigh Belt Metamorphic rocks Metamorphic Rocks Biotite gneiss and schist Proterozoic-PhanerozoicLater Proterozoic-PaleozoicLate Proterozoic-Cambriannone none 6 5.64386259707e+004 4.17966379841e+007Inequigranular and megacrystic; in places contains garnet; interlayered and gradational with mica schist and amphibolite; includes small masses of granitic rock 585Dqd Blue Ridge Belt Blue Ridge Intrusive Rocks Intrusive Rocks Quartz diorite to granodiorite Phanerozioc Paleozoic Devonian 390 4 7 1.16806421483e+004 4.48225499593e+006Contains biotite, muscovite, and xenocrysts. Includes Whiteside Mountain, Stone Mountain, Mount Airy, Spruce Pine, and other smaller plutons 586Zata Blue Ridge Belt Blue Ridge Ashe Metamorphic Suite and Tallulah Falls FormationSedimentary and Metamorphic RocksAmphibolite Proterozoic Late Proterozoic Late Proterozoic none none 10 1.85470846979e+004 1.29088879880e+007Equigranular, massive to well foliated, interlayered, rarely discordant, metamorphosed intrusive and extrusive mafic rock; may include metasedimentary rock 587Dqd Blue Ridge Belt Blue Ridge Intrusive Rocks Intrusive Rocks Quartz diorite to granodiorite Phanerozioc Paleozoic Devonian 390 4 7 7.71753583156e+003 2.16029709400e+006Contains biotite, muscovite, and xenocrysts. Includes Whiteside Mountain, Stone Mountain, Mount Airy, Spruce Pine, and other smaller plutons 588Dqd Blue Ridge Belt Blue Ridge Intrusive Rocks Intrusive Rocks Quartz diorite to granodiorite Phanerozioc Paleozoic Devonian 390 4 7 8.83763225543e+003 1.35915317713e+006Contains biotite, muscovite, and xenocrysts. Includes Whiteside Mountain, Stone Mountain, Mount Airy, Spruce Pine, and other smaller plutons 589Zss Blue Ridge Belt Hot Springs Window Ocoee Supergroup Sedimentary and Metamorphic RocksSandsuck Formation Proterozoic Late Proterozoic Late Proterozoic none none 35 2.38825246529e+003 3.63436385532e+005Slate and metasiltstone, dark green to black. Metaconglomerate lentils in upper part; calcareous metasandstone, sandy metalimestone, and quartzite in lower part 590CZg Charlotte and Milton Belts Charlotte Belt Intrusive Rocks Intrusive Rocks Metamorphosed granitic rock Proterozoic-PhanerozoicLater Proterozoic-PaleozoicLate Proterozoic-Cambriannone none 1 4.25191793888e+004 4.57800986738e+007Megacrystic, well foliated; locally contains hornblende 591Tt Coastal Plain Coastal Plain Tertiary Sedimentary Rocks Terrace deposites and upland sediment Phanerozioc Cenozoic Tertiary none none 12 1.59270053986e+004 5.71672849946e+006Gravel, clayey sand, and sand, minor iron-oxide cemented sandstone 592Zgmf Grandfather Mountain Window Grandfather Mountain Window Grandfather Mountain Formation Metamorphic Rocks Porphyritic felsic volcanic rock Proterozoic Late Proterozoic Late Proterozoic 820 26 6 1.43607599385e+004 6.64912160828e+006Phyllitic to schistose, contains euhedral to subeuhedral phenocrysts of gray quartz and pink potassium feldspar. Resembles quartzite and meta-arkose 593Tt Coastal Plain Coastal Plain Tertiary Sedimentary Rocks Terrace deposites and upland sediment Phanerozioc Cenozoic Tertiary none none 12 6.08037145012e+004 4.51927765876e+007Gravel, clayey sand, and sand, minor iron-oxide cemented sandstone 594Qp Coastal Plain Coastal Plain Quaternary Surficial deposits Surficial deposits, undivided Phanerozioc Cenozoic Quaternary none none 14 1.79852470121e+003 2.15293989556e+005Sand, clay, gravel, and peat deposited in marine, fluvial, eolian, and lacustrine environments. Quaternary deposits not shown at altitudes greater than approximately 25 feet above mean sea level (Suffolk Scarp, in part) 595Zsl Blue Ridge Belt Blue Ridge Snowbird Group Sedimentary and Metamorphic RocksLongarm Quartzite Proterozoic Late Proterozoic Late Proterozoic none none 21 1.79661526935e+004 1.33030108800e+007Cross-bedded, feldspathic, locally conglomeratic; includes dark slate and metasiltstone 596Dqd Blue Ridge Belt Blue Ridge Intrusive Rocks Intrusive Rocks Quartz diorite to granodiorite Phanerozioc Paleozoic Devonian 390 4 7 3.29471981213e+004 1.31377882351e+007Contains biotite, muscovite, and xenocrysts. Includes Whiteside Mountain, Stone Mountain, Mount Airy, Spruce Pine, and other smaller plutons 597PzZg Carolina Slate Belt Carolina Slate Belt Intrusive Rocks Intrusive Rocks Metamorphosed gabbro and diorite Phanerozioc Paleozoic Permian none none 4 7.01877942707e+003 2.27003803438e+006Foliated to masive 598PzZu Raleigh Belt Raleigh Belt Intrusive Rocks Intrusive Rocks Meta-ultramafic rock Phanerozioc Paleozoic Permian none none 2 7.00257240489e+003 1.34014041243e+006Metamorphosed dunite, local peridotite; serpentinite, soapstone, and other altered ultramafic rock. Only larger bodies shown 599PzZg Carolina Slate Belt Carolina Slate Belt Intrusive Rocks Intrusive Rocks Metamorphosed gabbro and diorite Phanerozioc Paleozoic Permian none none 4 7.44077866697e+003 3.56152296831e+006Foliated to masive 600CZab Inner Piedmont, Chauga Belt, Smith River Allochthon, and Sauratown MountainInner Piedmont Metamorphic rocks Metamorphic Rocks Amphibolite and biotite gneiss Proterozoic-PhanerozoicLater Proterozoic-PaleozoicLate Proterozoic-Cambriannone none 13 4.02636806392e+005 8.43521044073e+008Interlayered; minor layers and lenses of hornblende gneiss, metagabbro, mica schist, and granitic rock 601Dqd Blue Ridge Belt Blue Ridge Intrusive Rocks Intrusive Rocks Quartz diorite to granodiorite Phanerozioc Paleozoic Devonian 390 4 7 6.90020462026e+003 2.02812993281e+006Contains biotite, muscovite, and xenocrysts. Includes Whiteside Mountain, Stone Mountain, Mount Airy, Spruce Pine, and other smaller plutons 602CZiv Carolina Slate Belt Carolina Slate Belt Metamorphic rocks Metamorphic Rocks Intermediate metavolcanic rock Proterozoic-PhanerozoicLater Proterozoic-PaleozoicLate Proterozoic-Cambriannone none 5 8.69030955601e+003 2.33865747436e+006Metamorphosed andesitic tuffs and flows, medium to dark grayish green; minor felsic and mafic metavolcanic rock 603CZg Carolina Slate Belt Carolina Slate Belt Intrusive Rocks Intrusive Rocks Metamorphosed granitic rock Proterozoic-PhanerozoicLater Proterozoic-PaleozoicLate Proterozoic-Cambrian520-650 3,21,9,23,28,15 1 2.03377883403e+004 1.02009523055e+007Megacrystic, well foliated; locally contains hornblende. Chapel Hill, Chatham, Farrington, Meadow Flats, Mt. Moriah, Parks Crossroads plutons, and Roxboro and Vance County suites 604Zm Blue Ridge Belt Blue Ridge Intrusive Rocks Intrusive Rocks Max Patch Granite Proterozoic Late Proterozoic Late Proterozoic none none 2 3.46742768431e+003 5.14069898939e+005Mottled pink and light green, coarse grained to porphyritic, massive; contains biotite 605Qp Coastal Plain Coastal Plain Quaternary Surficial deposits Surficial deposits, undivided Phanerozioc Cenozoic Quaternary none none 14 5.43846796953e+004 4.76160820087e+007Sand, clay, gravel, and peat deposited in marine, fluvial, eolian, and lacustrine environments. Quaternary deposits not shown at altitudes greater than approximately 25 feet above mean sea level (Suffolk Scarp, in part) 606CZg Carolina Slate Belt Carolina Slate Belt Intrusive Rocks Intrusive Rocks Metamorphosed granitic rock Proterozoic-PhanerozoicLater Proterozoic-PaleozoicLate Proterozoic-Cambrian520-650 3,21,9,23,28,15 1 1.03501763810e+005 1.34909074638e+008Megacrystic, well foliated; locally contains hornblende. Chapel Hill, Chatham, Farrington, Meadow Flats, Mt. Moriah, Parks Crossroads plutons, and Roxboro and Vance County suites 607Zg Grandfather Mountain Window Grandfather Mountain Window Intrusive Rocks Intrusive Rocks Metamorphosed granitic rock Proterozoic Late Proterozoic Late Proterozoic 680-710 25,27 1 2.95981558794e+003 6.51911048531e+005Massive to foliated, locally mylonitic. Equivalent to Brown Mountain Granite 608DOgb Charlotte and Milton Belts Charlotte Belt Intrusive Rocks Intrusive Rocks Gabbro of Concord Plutonic Suite Phanerozioc Paleozoic Ordovician-Devonian 399-479 24 8 8.59841633964e+003 4.65782877872e+006Barber, Concord, Farmington, Mecklenburg, and Weddington intrusives 778CZmd Carolina Slate Belt Carolina Slate Belt Metamorphic rocks Metamorphic Rocks Metamudstone and meta-argillite Proterozoic-PhanerozoicLater Proterozoic-PaleozoicLate Proterozoic-Cambriannone none 8 8.73371356240e+003 2.39774865358e+006Thin to thick bedded; bedding plane and axial-planar cleavage common; interbedded with metasandstone, metaconglomerate, and metavolcanic rock. CZmd3 - Floyd Church Formation, CZmd2 - Cid Formation, CZmd1 - Tillery Formation: (southwest of Asheboro) 779CZmd Eastern Slate Belt Eastern Slate Belt Metamorphic rocks Metamorphic Rocks Metamudstone and meta-argillite Proterozoic-PhanerozoicLater Proterozoic-PaleozoicLate Proterozoic-Cambriannone none 2 1.81586480115e+005 1.70604605691e+008Bedding plane and axial-planar cleavage common; interbedded with metasandstone, metaconglomerate, and metavolcanic rock 780PzZu Blue Ridge Belt Blue Ridge Intrusive Rocks Intrusive Rocks Meta-ultramafic rock Phanerozioc Paleozoic Permian none none 5 4.30621264878e+003 7.49019079867e+005Metamorphosed dunite, local peridotite; serpentinite, soapstone, and other altered ultramafic rock. Only larger bodies shown 781Zch Blue Ridge Belt Blue Ridge Ocoee Supergroup Sedimentary and Metamorphic RocksCopper Hill Formation Proterozoic Late Proterozoic Late Proterozoic none none 30 6.74580744921e+005 1.50242430112e+009Metagraywacke, massive, graded bedding common; includes dark-gray slate, mica schist, and nodular calcsilicate rock 782CZbg Raleigh Belt Raleigh Belt Metamorphic rocks Metamorphic Rocks Biotite gneiss and schist Proterozoic-PhanerozoicLater Proterozoic-PaleozoicLate Proterozoic-Cambriannone none 6 9.32191665241e+003 5.01284524278e+006Inequigranular and megacrystic; in places contains garnet; interlayered and gradational with mica schist and amphibolite; includes small masses of granitic rock 783Qp Coastal Plain Coastal Plain Quaternary Surficial deposits Surficial deposits, undivided Phanerozioc Cenozoic Quaternary none none 14 1.84812201464e+005 9.30619322208e+007Sand, clay, gravel, and peat deposited in marine, fluvial, eolian, and lacustrine environments. Quaternary deposits not shown at altitudes greater than approximately 25 feet above mean sea level (Suffolk Scarp, in part) 784CZph Carolina Slate Belt Carolina Slate Belt Metamorphic rocks Metamorphic Rocks Phyllite and schist Proterozoic-PhanerozoicLater Proterozoic-PaleozoicLate Proterozoic-Cambriannone none 1 1.03058224072e+004 2.50873807423e+006Locally laminated and pyritic; includes phyllonite, sheared fine-grained metasediment, and metavolcanic rock. In Lilesville granite aureole, includes hornfels (CZph1), and biotite gneiss and schist (CZbg) 785Cs Grandfather Mountain Window Grandfather Mountain Window Sedimentary and Metamorphic Rocks Metamorphic Rocks Shady Dolomite Phanerozioc Paleozoic Cambrian none none 11 6.36516560887e+003 2.66381862252e+006Light gray, fine grained, massive, locally thin bedded or ribboned. Thin beds of phyllite 786PzZu Charlotte and Milton Belts Charlotte Belt Intrusive Rocks Intrusive Rocks Meta-ultramafic rock Phanerozioc Paleozoic Permian none none 2 2.97518314719e+003 5.98906488753e+005Metamorphosed dunite, local peridotite; serpentinite, soapstone, and other altered ultramafic rock. Only larger bodies shown 1323Tt Coastal Plain Coastal Plain Tertiary Sedimentary Rocks Terrace deposites and upland sediment Phanerozioc Cenozoic Tertiary none none 12 2.70472219956e+003 5.21767841353e+005Gravel, clayey sand, and sand, minor iron-oxide cemented sandstone 1324CZpg Inner Piedmont, Chauga Belt, Smith River Allochthon, and Sauratown MountainInner Piedmont Metamorphic rocks Metamorphic Rocks Inequigranular biotite gneiss Proterozoic-PhanerozoicLater Proterozoic-PaleozoicLate Proterozoic-Cambriannone none 4 5.45593965567e+004 6.57351043204e+007Weakly foliated to massive, contains plagioclase megacrysts and, rarely, larger megacrysts of quartz and feldspar 1325Tpa Coastal Plain Coastal Plain Tertiary Sedimentary Rocks Beaufort Formation, Undivided Phanerozioc Cenozoic Tertiary none none 5 2.23430047236e+004 1.69094980500e+007Unnamed upper member: Sand and silty clay, glauconitic, fossiliferous, and locally calcareous. Jericho Run Member: Siliceous mudstone with sandstone lenses, thin bedded; basal phosphatic pebble conglomerate 1326Zata Blue Ridge Belt Blue Ridge Ashe Metamorphic Suite and Tallulah Falls FormationSedimentary and Metamorphic RocksAmphibolite Proterozoic Late Proterozoic Late Proterozoic none none 10 1.47554547243e+004 2.89904364801e+006Equigranular, massive to well foliated, interlayered, rarely discordant, metamorphosed intrusive and extrusive mafic rock; may include metasedimentary rock 1327CZpg Inner Piedmont, Chauga Belt, Smith River Allochthon, and Sauratown MountainInner Piedmont Metamorphic rocks Metamorphic Rocks Inequigranular biotite gneiss Proterozoic-PhanerozoicLater Proterozoic-PaleozoicLate Proterozoic-Cambriannone none 4 1.24355656665e+004 3.21472208686e+006Weakly foliated to massive, contains plagioclase megacrysts and, rarely, larger megacrysts of quartz and feldspar 1328OCg Inner Piedmont, Chauga Belt, Smith River Allochthon, and Sauratown MountainInner Piedmont Intrusive Rocks Intrusive Rocks Metamorphosed granitic rock Phanerozioc Paleozoic Cambrian-Ordovician 455-540 10 5 7.29103989804e+003 2.51276425922e+006Equigranular to megacrystic, foliated to massive. Includes Toluca Granite 1329Dqd Blue Ridge Belt Blue Ridge Intrusive Rocks Intrusive Rocks Quartz diorite to granodiorite Phanerozioc Paleozoic Devonian 390 4 7 8.63482524499e+003 1.46457991883e+006Contains biotite, muscovite, and xenocrysts. Includes Whiteside Mountain, Stone Mountain, Mount Airy, Spruce Pine, and other smaller plutons 1330CZpg Inner Piedmont, Chauga Belt, Smith River Allochthon, and Sauratown MountainInner Piedmont Metamorphic rocks Metamorphic Rocks Inequigranular biotite gneiss Proterozoic-PhanerozoicLater Proterozoic-PaleozoicLate Proterozoic-Cambriannone none 4 2.03799841736e+004 7.58153180371e+006Weakly foliated to massive, contains plagioclase megacrysts and, rarely, larger megacrysts of quartz and feldspar 609Zaba Blue Ridge Belt Blue Ridge Alligator Back Formation Sedimentary and Metamorphic RocksAmphibolite Proterozoic Late Proterozoic Late Proterozoic none none 15 1.11289690584e+005 4.58726383108e+007Equigranular, massive to well foliated, interlayered, rarely discordant, metamorphosed intrusive and extrusive mafic rock; may include metasedimentary rock 610Zgmu Grandfather Mountain Window Grandfather Mountain Window Grandfather Mountain Formation Metamorphic Rocks Felsic metavolcanic rocks and metasedimentary rock Proterozoic Late Proterozoic Late Proterozoic 820 26 3 1.72486772956e+004 2.98143717105e+006Tentatively correlated with Grandfather Mountain Formation 611Cr Blue Ridge Belt Hot Springs Window Rome Formation Sedimentary and Metamorphic RocksRome Formation Phanerozioc Paleozoic Cambrian none none 40 1.46819620278e+004 5.92642178763e+006Shale and siltstone, variegated red to brown; interbedded fine-grained sandstone and shaly dolomite 612Jd Triassic Basins Durham-Sanford Subbasins Intrusive Rocks Intrusive Rocks Diabase Phanerozioc Mesozoic Jurassic none none 1 4.65408251441e+003 1.34520479492e+006Dikes, gray to black 613Zaba Blue Ridge Belt Blue Ridge Alligator Back Formation Sedimentary and Metamorphic RocksAmphibolite Proterozoic Late Proterozoic Late Proterozoic none none 15 3.09097317279e+003 3.55978424323e+005Equigranular, massive to well foliated, interlayered, rarely discordant, metamorphosed intrusive and extrusive mafic rock; may include metasedimentary rock 614Cs Grandfather Mountain Window Grandfather Mountain Window Sedimentary and Metamorphic Rocks Metamorphic Rocks Shady Dolomite Phanerozioc Paleozoic Cambrian none none 11 1.65515278340e+004 3.98035970466e+006Light gray, fine grained, massive, locally thin bedded or ribboned. Thin beds of phyllite 615Tpy Coastal Plain Coastal Plain Tertiary Sedimentary Rocks Yorktown Formation and Duplin Formation, Undivided Phanerozioc Cenozoic Tertiary none none 10 9.72162096237e+003 4.48777117980e+006Yorktown Formation: Fossiliferous clay with varying amounts of fine-grained sand, bluish gray, shell material commonly concentrated in lenses; mainly in area north of Neuse River. Duplin Formation: Shelly, medium- to coarse-grained sand, sandy marl, and limestone, bluish gray; mainly in area south of Neuse River 616Zg Grandfather Mountain Window Grandfather Mountain Window Intrusive Rocks Intrusive Rocks Metamorphosed granitic rock Proterozoic Late Proterozoic Late Proterozoic 680-710 25,27 1 2.11336008320e+004 2.42275319716e+007Massive to foliated, locally mylonitic. Equivalent to Brown Mountain Granite 617CZms Inner Piedmont, Chauga Belt, Smith River Allochthon, and Sauratown MountainInner Piedmont Metamorphic rocks Metamorphic Rocks Mica schist Proterozoic-PhanerozoicLater Proterozoic-PaleozoicLate Proterozoic-Cambriannone none 14 8.24574219778e+003 3.09260368022e+006Garnet, staurolite, kyanite, or sillimanite occur locally; lenses and layers of quartz schist, micaceous quartzite, calc-silicate rock, biotite gneiss, amphibolite, and phyllite 618CZg Carolina Slate Belt Carolina Slate Belt Intrusive Rocks Intrusive Rocks Metamorphosed granitic rock Proterozoic-PhanerozoicLater Proterozoic-PaleozoicLate Proterozoic-Cambrian520-650 3,21,9,23,28,15 1 2.68155363950e+004 2.15277136524e+007Megacrystic, well foliated; locally contains hornblende. Chapel Hill, Chatham, Farrington, Meadow Flats, Mt. Moriah, Parks Crossroads plutons, and Roxboro and Vance County suites 619Kc Coastal Plain Coastal Plain Cretaceous Sedimentary Rocks Cape Fear Formation Phanerozioc Mesozoic Cretaceous none none 1 8.54088235690e+004 4.06262172460e+007Sandstone and sandy mudstone, yellowish gray to bluish gray, mottled red to yellowish orange, indurated, graded and laterally continuous bedding, blocky clay, faint cross-bedding, feldspar and mica common 620CZfv Eastern Slate Belt Eastern Slate Belt Metamorphic rocks Metamorphic Rocks Felsic metavolcanic rock Proterozoic-PhanerozoicLater Proterozoic-PaleozoicLate Proterozoic-Cambriannone none 6 4.75850888517e+004 2.84765782739e+007Metamorphosed dacitic to rhyolitic flows and tuffs, light gray to greenish gray; interbedded with mafic and intermediate metavolcanic rock, meta-argillite, and metamudstone 621Cs Blue Ridge Belt Hot Springs Window Shady Dolomite Sedimentary and Metamorphic RocksShady Dolomite Phanerozioc Paleozoic Cambrian none none 39 1.87517181991e+004 5.54548936524e+006Light gray, fine grained, massive, locally thin bedded or ribboned 622Tpy Coastal Plain Coastal Plain Tertiary Sedimentary Rocks Yorktown Formation and Duplin Formation, Undivided Phanerozioc Cenozoic Tertiary none none 10 1.13900895443e+004 5.36362721979e+006Yorktown Formation: Fossiliferous clay with varying amounts of fine-grained sand, bluish gray, shell material commonly concentrated in lenses; mainly in area north of Neuse River. Duplin Formation: Shelly, medium- to coarse-grained sand, sandy marl, and limestone, bluish gray; mainly in area south of Neuse River 623PzZu Raleigh Belt Raleigh Belt Intrusive Rocks Intrusive Rocks Meta-ultramafic rock Phanerozioc Paleozoic Permian none none 2 4.14728634075e+003 6.99194679550e+005Metamorphosed dunite, local peridotite; serpentinite, soapstone, and other altered ultramafic rock. Only larger bodies shown 624CZiv Carolina Slate Belt Carolina Slate Belt Metamorphic rocks Metamorphic Rocks Intermediate metavolcanic rock Proterozoic-PhanerozoicLater Proterozoic-PaleozoicLate Proterozoic-Cambriannone none 5 8.39589651287e+003 2.44931756780e+006Metamorphosed andesitic tuffs and flows, medium to dark grayish green; minor felsic and mafic metavolcanic rock 625CZmd Eastern Slate Belt Eastern Slate Belt Metamorphic rocks Metamorphic Rocks Metamudstone and meta-argillite Proterozoic-PhanerozoicLater Proterozoic-PaleozoicLate Proterozoic-Cambriannone none 2 1.55917003853e+005 1.00265682253e+008Bedding plane and axial-planar cleavage common; interbedded with metasandstone, metaconglomerate, and metavolcanic rock 626CZms Inner Piedmont, Chauga Belt, Smith River Allochthon, and Sauratown MountainInner Piedmont Metamorphic rocks Metamorphic Rocks Mica schist Proterozoic-PhanerozoicLater Proterozoic-PaleozoicLate Proterozoic-Cambriannone none 14 6.72665666495e+004 3.42179108119e+007Garnet, staurolite, kyanite, or sillimanite occur locally; lenses and layers of quartz schist, micaceous quartzite, calc-silicate rock, biotite gneiss, amphibolite, and phyllite 627PzZu Raleigh Belt Raleigh Belt Intrusive Rocks Intrusive Rocks Meta-ultramafic rock Phanerozioc Paleozoic Permian none none 2 1.42686359415e+003 1.02228864050e+005Metamorphosed dunite, local peridotite; serpentinite, soapstone, and other altered ultramafic rock. Only larger bodies shown 628CZg Charlotte and Milton Belts Charlotte Belt Intrusive Rocks Intrusive Rocks Metamorphosed granitic rock Proterozoic-PhanerozoicLater Proterozoic-PaleozoicLate Proterozoic-Cambriannone none 1 7.31183505132e+004 5.54133406937e+007Megacrystic, well foliated; locally contains hornblende 629OCg Inner Piedmont, Chauga Belt, Smith River Allochthon, and Sauratown MountainInner Piedmont Intrusive Rocks Intrusive Rocks Metamorphosed granitic rock Phanerozioc Paleozoic Cambrian-Ordovician 455-540 10 5 1.07332408771e+004 3.30171209712e+006Equigranular to megacrystic, foliated to massive. Includes Toluca Granite 630Chg Inner Piedmont, Chauga Belt, Smith River Allochthon, and Sauratown MountainChauga Belt Intrusive Rocks Intrusive Rocks Henderson Gneiss Phanerozioc Paleozoic Cambrian 524 10 4 2.77338159605e+003 3.34772829174e+005Monzonitic to granodioritic, inequigranular 631Ccu Blue Ridge Belt Hot Springs Window Chilhowee Group Sedimentary and Metamorphic RocksUpper Chilhowee Group Phanerozioc Paleozoic Cambrian none none 38 3.24452869553e+004 1.53830018300e+007Vitreous quartz arenite, white to light gray; interbedded sandy siltstone and shale. Erwin and Hampton formations of Hot Springs Window 632Zgmg Grandfather Mountain Window Grandfather Mountain Window Grandfather Mountain Formation Metamorphic Rocks Greenstone Proterozoic Late Proterozoic Late Proterozoic none none 7 6.68614690881e+003 1.00086783497e+006Schistose to massive, amygdaloidal; interlayered with metasedimentary rocks. Includes Montezuma Member (metabasalt) in upper part 633PzZu Blue Ridge Belt Blue Ridge Intrusive Rocks Intrusive Rocks Meta-ultramafic rock Phanerozioc Paleozoic Permian none none 5 2.17559856175e+003 2.81618766395e+005Metamorphosed dunite, local peridotite; serpentinite, soapstone, and other altered ultramafic rock. Only larger bodies shown 634CZms Inner Piedmont, Chauga Belt, Smith River Allochthon, and Sauratown MountainInner Piedmont Metamorphic rocks Metamorphic Rocks Mica schist Proterozoic-PhanerozoicLater Proterozoic-PaleozoicLate Proterozoic-Cambriannone none 14 2.01747936519e+004 1.05388685190e+007Garnet, staurolite, kyanite, or sillimanite occur locally; lenses and layers of quartz schist, micaceous quartzite, calc-silicate rock, biotite gneiss, amphibolite, and phyllite 635CZg Carolina Slate Belt Carolina Slate Belt Intrusive Rocks Intrusive Rocks Metamorphosed granitic rock Proterozoic-PhanerozoicLater Proterozoic-PaleozoicLate Proterozoic-Cambrian520-650 3,21,9,23,28,15 1 8.84147577805e+003 1.89773872115e+006Megacrystic, well foliated; locally contains hornblende. Chapel Hill, Chatham, Farrington, Meadow Flats, Mt. Moriah, Parks Crossroads plutons, and Roxboro and Vance County suites 636bz Inner Piedmont, Chauga Belt, Smith River Allochthon, and Sauratown MountainInner Piedmont Metamorphic rocks Metamorphic Rocks Rocks of Brevard Fault Zone unknown unknown unknown none none 17 3.31344081384e+005 1.72406883780e+008"Fish scale" schist and phyllonite, graphitic; interlayered with feldspathic metasandstone, marble lenses 637CZg Carolina Slate Belt Carolina Slate Belt Intrusive Rocks Intrusive Rocks Metamorphosed granitic rock Proterozoic-PhanerozoicLater Proterozoic-PaleozoicLate Proterozoic-Cambrian520-650 3,21,9,23,28,15 1 1.04958656660e+004 7.21613175535e+006Megacrystic, well foliated; locally contains hornblende. Chapel Hill, Chatham, Farrington, Meadow Flats, Mt. Moriah, Parks Crossroads plutons, and Roxboro and Vance County suites 638PzZu Raleigh Belt Raleigh Belt Intrusive Rocks Intrusive Rocks Meta-ultramafic rock Phanerozioc Paleozoic Permian none none 2 3.56057128658e+003 6.79716582606e+005Metamorphosed dunite, local peridotite; serpentinite, soapstone, and other altered ultramafic rock. Only larger bodies shown 639Tt Coastal Plain Coastal Plain Tertiary Sedimentary Rocks Terrace deposites and upland sediment Phanerozioc Cenozoic Tertiary none none 12 4.57094304351e+003 1.21340481827e+006Gravel, clayey sand, and sand, minor iron-oxide cemented sandstone 640PzZu Raleigh Belt Raleigh Belt Intrusive Rocks Intrusive Rocks Meta-ultramafic rock Phanerozioc Paleozoic Permian none none 2 1.93342569178e+003 1.94023088484e+005Metamorphosed dunite, local peridotite; serpentinite, soapstone, and other altered ultramafic rock. Only larger bodies shown 641CZg Carolina Slate Belt Carolina Slate Belt Intrusive Rocks Intrusive Rocks Metamorphosed granitic rock Proterozoic-PhanerozoicLater Proterozoic-PaleozoicLate Proterozoic-Cambrian520-650 3,21,9,23,28,15 1 1.54647548409e+005 2.08775771610e+008Megacrystic, well foliated; locally contains hornblende. Chapel Hill, Chatham, Farrington, Meadow Flats, Mt. Moriah, Parks Crossroads plutons, and Roxboro and Vance County suites 642CZg Charlotte and Milton Belts Charlotte Belt Intrusive Rocks Intrusive Rocks Metamorphosed granitic rock Proterozoic-PhanerozoicLater Proterozoic-PaleozoicLate Proterozoic-Cambriannone none 1 2.84261769763e+004 1.90727106447e+007Megacrystic, well foliated; locally contains hornblende 643CZms Inner Piedmont, Chauga Belt, Smith River Allochthon, and Sauratown MountainInner Piedmont Metamorphic rocks Metamorphic Rocks Mica schist Proterozoic-PhanerozoicLater Proterozoic-PaleozoicLate Proterozoic-Cambriannone none 14 4.05507158807e+004 3.26929483862e+007Garnet, staurolite, kyanite, or sillimanite occur locally; lenses and layers of quartz schist, micaceous quartzite, calc-silicate rock, biotite gneiss, amphibolite, and phyllite 644Dqd Blue Ridge Belt Blue Ridge Intrusive Rocks Intrusive Rocks Quartz diorite to granodiorite Phanerozioc Paleozoic Devonian 390 4 7 3.61192845765e+003 4.38397368496e+005Contains biotite, muscovite, and xenocrysts. Includes Whiteside Mountain, Stone Mountain, Mount Airy, Spruce Pine, and other smaller plutons 654Tt Coastal Plain Coastal Plain Tertiary Sedimentary Rocks Terrace deposites and upland sediment Phanerozioc Cenozoic Tertiary none none 12 2.13224741117e+004 9.33740505035e+006Gravel, clayey sand, and sand, minor iron-oxide cemented sandstone 655PPmg Raleigh Belt Raleigh Belt Intrusive Rocks Intrusive Rocks Foliated to massive granitic rock Phanerozioc Paleozoic Pennsylvanian-Permian 270-320 4,22 4 8.82256152144e+003 2.96613742222e+006Megacrystic to equigranular. Rolesville suite, Wise and Lemon Springs (?) intrusives 656Zss Blue Ridge Belt Hot Springs Window Ocoee Supergroup Sedimentary and Metamorphic RocksSandsuck Formation Proterozoic Late Proterozoic Late Proterozoic none none 35 2.72294184037e+004 5.46320569430e+006Slate and metasiltstone, dark green to black. Metaconglomerate lentils in upper part; calcareous metasandstone, sandy metalimestone, and quartzite in lower part 657Tt Coastal Plain Coastal Plain Tertiary Sedimentary Rocks Terrace deposites and upland sediment Phanerozioc Cenozoic Tertiary none none 12 4.08351745759e+004 2.43667287306e+007Gravel, clayey sand, and sand, minor iron-oxide cemented sandstone 658PzZg Carolina Slate Belt Carolina Slate Belt Intrusive Rocks Intrusive Rocks Metamorphosed gabbro and diorite Phanerozioc Paleozoic Permian none none 4 1.35954207660e+004 1.20030921303e+007Foliated to masive 659Qp Coastal Plain Coastal Plain Quaternary Surficial deposits Surficial deposits, undivided Phanerozioc Cenozoic Quaternary none none 14 1.87263816264e+003 2.31222110397e+005Sand, clay, gravel, and peat deposited in marine, fluvial, eolian, and lacustrine environments. Quaternary deposits not shown at altitudes greater than approximately 25 feet above mean sea level (Suffolk Scarp, in part) 660Tt Coastal Plain Coastal Plain Tertiary Sedimentary Rocks Terrace deposites and upland sediment Phanerozioc Cenozoic Tertiary none none 12 1.04183590358e+004 4.08738502288e+006Gravel, clayey sand, and sand, minor iron-oxide cemented sandstone 661Zs Blue Ridge Belt Hot Springs Window Sedimentary and Metamorphic Rocks Sedimentary and Metamorphic RocksSnowbird Group, Undivided Proterozoic Late Proterozoic Late Proterozoic none none 24 5.08516037309e+004 3.14276399420e+007Feldspathic metasiltstone, metasandstone, and phyllite. Basal schist contains lenses of quartz-pebble conglomerate 662Qp Coastal Plain Coastal Plain Quaternary Surficial deposits Surficial deposits, undivided Phanerozioc Cenozoic Quaternary none none 14 9.76658671818e+002 5.92123592063e+004Sand, clay, gravel, and peat deposited in marine, fluvial, eolian, and lacustrine environments. Quaternary deposits not shown at altitudes greater than approximately 25 feet above mean sea level (Suffolk Scarp, in part) 663Qp Coastal Plain Coastal Plain Quaternary Surficial deposits Surficial deposits, undivided Phanerozioc Cenozoic Quaternary none none 14 9.63486691360e+002 6.57779190532e+004Sand, clay, gravel, and peat deposited in marine, fluvial, eolian, and lacustrine environments. Quaternary deposits not shown at altitudes greater than approximately 25 feet above mean sea level (Suffolk Scarp, in part) 664Zm Blue Ridge Belt Hot Springs Window Intrusive Rocks Intrusive Rocks Max Patch Granite Proterozoic Late Proterozoic Late Proterozoic none none 2 1.74186295064e+004 1.45882762254e+007Mottled pink and light green, coarse grained to porphyritic, massive; contains biotite 665PzZu Raleigh Belt Raleigh Belt Intrusive Rocks Intrusive Rocks Meta-ultramafic rock Phanerozioc Paleozoic Permian none none 2 4.08309767691e+003 5.59731885009e+005Metamorphosed dunite, local peridotite; serpentinite, soapstone, and other altered ultramafic rock. Only larger bodies shown 666Qp Coastal Plain Coastal Plain Quaternary Surficial deposits Surficial deposits, undivided Phanerozioc Cenozoic Quaternary none none 14 1.37698245845e+003 7.89556165501e+004Sand, clay, gravel, and peat deposited in marine, fluvial, eolian, and lacustrine environments. Quaternary deposits not shown at altitudes greater than approximately 25 feet above mean sea level (Suffolk Scarp, in part) 667Tt Coastal Plain Coastal Plain Tertiary Sedimentary Rocks Terrace deposites and upland sediment Phanerozioc Cenozoic Tertiary none none 12 9.18989984341e+003 2.70041606992e+006Gravel, clayey sand, and sand, minor iron-oxide cemented sandstone 668Qp Coastal Plain Coastal Plain Quaternary Surficial deposits Surficial deposits, undivided Phanerozioc Cenozoic Quaternary none none 14 2.14825692741e+003 3.05384722141e+005Sand, clay, gravel, and peat deposited in marine, fluvial, eolian, and lacustrine environments. Quaternary deposits not shown at altitudes greater than approximately 25 feet above mean sea level (Suffolk Scarp, in part) 669Zatw Blue Ridge Belt Blue Ridge Ashe Metamorphic Suite and Tallulah Falls FormationSedimentary and Metamorphic RocksMetagraywacke Proterozoic Late Proterozoic Late Proterozoic none none 14 1.82372433972e+005 5.97884511935e+008Foliated to massive, locally conglomeratic; interlayered and gradational with mica schist, muscovite-biotite gneiss, and rare graphitic schist 670OCg Inner Piedmont, Chauga Belt, Smith River Allochthon, and Sauratown MountainInner Piedmont Intrusive Rocks Intrusive Rocks Metamorphosed granitic rock Phanerozioc Paleozoic Cambrian-Ordovician 455-540 10 5 7.30233581384e+003 3.49175977290e+006Equigranular to megacrystic, foliated to massive. Includes Toluca Granite 671Tt Coastal Plain Coastal Plain Tertiary Sedimentary Rocks Terrace deposites and upland sediment Phanerozioc Cenozoic Tertiary none none 12 1.03936283853e+004 3.00873135419e+006Gravel, clayey sand, and sand, minor iron-oxide cemented sandstone 672CZg Carolina Slate Belt Carolina Slate Belt Intrusive Rocks Intrusive Rocks Metamorphosed granitic rock Proterozoic-PhanerozoicLater Proterozoic-PaleozoicLate Proterozoic-Cambrian520-650 3,21,9,23,28,15 1 7.62336568840e+003 3.01174417308e+006Megacrystic, well foliated; locally contains hornblende. Chapel Hill, Chatham, Farrington, Meadow Flats, Mt. Moriah, Parks Crossroads plutons, and Roxboro and Vance County suites 673Zsw Blue Ridge Belt Hot Springs Window Snowbird Group Sedimentary and Metamorphic RocksWading Branch Formation Proterozoic Late Proterozoic Late Proterozoic none none 20 4.33055248900e+003 5.35328645100e+005Sandy slate to coarse-grained pebbly metagraywacke with local graded bedding. Basal quartz-sericite schist or phyllite 674Dqd Blue Ridge Belt Blue Ridge Intrusive Rocks Intrusive Rocks Quartz diorite to granodiorite Phanerozioc Paleozoic Devonian 390 4 7 5.45337347544e+003 1.07959289082e+006Contains biotite, muscovite, and xenocrysts. Includes Whiteside Mountain, Stone Mountain, Mount Airy, Spruce Pine, and other smaller plutons 1847Tpy Coastal Plain Coastal Plain Tertiary Sedimentary Rocks Yorktown Formation and Duplin Formation, Undivided Phanerozioc Cenozoic Tertiary none none 10 8.69724207917e+003 3.07675465039e+006Yorktown Formation: Fossiliferous clay with varying amounts of fine-grained sand, bluish gray, shell material commonly concentrated in lenses; mainly in area north of Neuse River. Duplin Formation: Shelly, medium- to coarse-grained sand, sandy marl, and limestone, bluish gray; mainly in area south of Neuse River 675CZq Charlotte and Milton Belts Charlotte Belt Metamorphic rocks Metamorphic Rocks Quartzite Proterozoic-PhanerozoicLater Proterozoic-PaleozoicLate Proterozoic-Cambriannone none 2 5.58130491152e+003 2.31937796177e+006Massive to well foliated; contains andalusite, kyanite, or sillimanite, chloritoid, and pyrite 676Ccl Grandfather Mountain Window Grandfather Mountain Window Chilhowee Group Metamorphic Rocks Lower Chilhowee Group Phanerozioc Paleozoic Cambrian none none 9 2.08490313980e+003 3.07810909965e+005Feldspathic arenite, white to yellowish gray. Minor silty shale, feldspathic metasiltstone, and metaconglomerate in lower part 677CZmv Carolina Slate Belt Carolina Slate Belt Metamorphic rocks Metamorphic Rocks Mafic metavolcanic rock Proterozoic-PhanerozoicLater Proterozoic-PaleozoicLate Proterozoic-Cambriannone none 7 8.79238879856e+003 2.78284607375e+006Metamorphosed basaltic flows and tuffs, dark green to black; interbedded with felsic and intermediate metavolcanic rock and metamudstone. CZmv1 - Cid Formation (southwest of Asheboro) 678PzZu Inner Piedmont, Chauga Belt, Smith River Allochthon, and Sauratown MountainInner Piedmont Intrusive Rocks Intrusive Rocks Meta-ultramafic rock Phanerozioc Paleozoic Permian none none 2 7.02935750689e+003 1.01258254983e+006Metamorphosed dunite, local peridotite; serpentinite, soapstone, and other altered ultramafic rock. Only larger bodies shown 679Zabg Blue Ridge Belt Blue Ridge Alligator Back Formation Sedimentary and Metamorphic RocksGneiss Proterozoic Late Proterozoic Late Proterozoic none none 16 7.80400023334e+003 1.01542763228e+006Finely laminated to thin layered; locally contains massive gneiss and micaceous granule conglomerate; includes schist, phyllite, and amphibolite 681Qp Coastal Plain Coastal Plain Quaternary Surficial deposits Surficial deposits, undivided Phanerozioc Cenozoic Quaternary none none 14 1.75430882242e+003 1.51879257934e+005Sand, clay, gravel, and peat deposited in marine, fluvial, eolian, and lacustrine environments. Quaternary deposits not shown at altitudes greater than approximately 25 feet above mean sea level (Suffolk Scarp, in part) 680CZbg Inner Piedmont, Chauga Belt, Smith River Allochthon, and Sauratown MountainInner Piedmont Metamorphic rocks Metamorphic Rocks Biotite gneiss and schist Proterozoic-PhanerozoicLater Proterozoic-PaleozoicLate Proterozoic-Cambriannone none 16 3.67097439829e+004 2.96623807961e+007Inequigranular, locally abundant potassic feldspar and garnet; interlayered and gradational with calc-silicate rock, sillimanite-mica schist, and amphibolite. Contains small masses of granitic rock 682Zm Blue Ridge Belt Blue Ridge Intrusive Rocks Intrusive Rocks Max Patch Granite Proterozoic Late Proterozoic Late Proterozoic none none 2 6.66937732539e+004 5.94074272937e+007Mottled pink and light green, coarse grained to porphyritic, massive; contains biotite 683CZab Inner Piedmont, Chauga Belt, Smith River Allochthon, and Sauratown MountainInner Piedmont Metamorphic rocks Metamorphic Rocks Amphibolite and biotite gneiss Proterozoic-PhanerozoicLater Proterozoic-PaleozoicLate Proterozoic-Cambriannone none 13 1.73696360651e+004 2.01462572807e+007Interlayered; minor layers and lenses of hornblende gneiss, metagabbro, mica schist, and granitic rock 684OCg Inner Piedmont, Chauga Belt, Smith River Allochthon, and Sauratown MountainInner Piedmont Intrusive Rocks Intrusive Rocks Metamorphosed granitic rock Phanerozioc Paleozoic Cambrian-Ordovician 455-540 10 5 1.02876674866e+004 5.50084244403e+006Equigranular to megacrystic, foliated to massive. Includes Toluca Granite 685Dqd Blue Ridge Belt Blue Ridge Intrusive Rocks Intrusive Rocks Quartz diorite to granodiorite Phanerozioc Paleozoic Devonian 390 4 7 3.91227376034e+003 8.06233016775e+005Contains biotite, muscovite, and xenocrysts. Includes Whiteside Mountain, Stone Mountain, Mount Airy, Spruce Pine, and other smaller plutons 686PzZu Inner Piedmont, Chauga Belt, Smith River Allochthon, and Sauratown MountainInner Piedmont Intrusive Rocks Intrusive Rocks Meta-ultramafic rock Phanerozioc Paleozoic Permian none none 2 1.03081697193e+004 3.27834955447e+006Metamorphosed dunite, local peridotite; serpentinite, soapstone, and other altered ultramafic rock. Only larger bodies shown 687Chg Inner Piedmont, Chauga Belt, Smith River Allochthon, and Sauratown MountainChauga Belt Intrusive Rocks Intrusive Rocks Henderson Gneiss Phanerozioc Paleozoic Cambrian 524 10 4 1.46554168335e+004 3.12730956375e+006Monzonitic to granodioritic, inequigranular 688CZv Charlotte and Milton Belts Charlotte Belt Metamorphic rocks Metamorphic Rocks Metavolcanic rock Proterozoic-PhanerozoicLater Proterozoic-PaleozoicLate Proterozoic-Cambriannone none 5 4.24933252884e+004 5.10774474153e+007Interbedded felsic to mafic tuffs and flowrock 689Zabg Blue Ridge Belt Blue Ridge Alligator Back Formation Sedimentary and Metamorphic RocksGneiss Proterozoic Late Proterozoic Late Proterozoic none none 16 9.76445241836e+003 1.59157345552e+006Finely laminated to thin layered; locally contains massive gneiss and micaceous granule conglomerate; includes schist, phyllite, and amphibolite 690Tt Coastal Plain Coastal Plain Tertiary Sedimentary Rocks Terrace deposites and upland sediment Phanerozioc Cenozoic Tertiary none none 12 1.36392846447e+004 5.32566414454e+006Gravel, clayey sand, and sand, minor iron-oxide cemented sandstone 691PzZu Blue Ridge Belt Blue Ridge Intrusive Rocks Intrusive Rocks Meta-ultramafic rock Phanerozioc Paleozoic Permian none none 5 2.44957771323e+003 3.27578361895e+005Metamorphosed dunite, local peridotite; serpentinite, soapstone, and other altered ultramafic rock. Only larger bodies shown 692Zgmf Grandfather Mountain Window Grandfather Mountain Window Grandfather Mountain Formation Metamorphic Rocks Porphyritic felsic volcanic rock Proterozoic Late Proterozoic Late Proterozoic 820 26 6 7.68438163520e+003 1.02975421996e+006Phyllitic to schistose, contains euhedral to subeuhedral phenocrysts of gray quartz and pink potassium feldspar. Resembles quartzite and meta-arkose 693CZv Carolina Slate Belt Carolina Slate Belt Metamorphic rocks Metamorphic Rocks Metavolcanic rock Proterozoic-PhanerozoicLater Proterozoic-PaleozoicLate Proterozoic-Cambriannone none 4 6.97764035369e+003 1.53514483577e+006Interbedded felsic to mafic tuffs and flowrock 694Chg Inner Piedmont, Chauga Belt, Smith River Allochthon, and Sauratown MountainChauga Belt Intrusive Rocks Intrusive Rocks Henderson Gneiss Phanerozioc Paleozoic Cambrian 524 10 4 5.24597622844e+003 1.00629453349e+006Monzonitic to granodioritic, inequigranular 695PzZu Raleigh Belt Raleigh Belt Intrusive Rocks Intrusive Rocks Meta-ultramafic rock Phanerozioc Paleozoic Permian none none 2 2.31801320842e+003 3.39973284453e+005Metamorphosed dunite, local peridotite; serpentinite, soapstone, and other altered ultramafic rock. Only larger bodies shown 696CZbg Inner Piedmont, Chauga Belt, Smith River Allochthon, and Sauratown MountainInner Piedmont Metamorphic rocks Metamorphic Rocks Biotite gneiss and schist Proterozoic-PhanerozoicLater Proterozoic-PaleozoicLate Proterozoic-Cambriannone none 16 1.10962462736e+005 1.19978785282e+008Inequigranular, locally abundant potassic feldspar and garnet; interlayered and gradational with calc-silicate rock, sillimanite-mica schist, and amphibolite. Contains small masses of granitic rock 697Ybam Blue Ridge Belt Blue Ridge Sedimentary and Metamorphic Rocks Sedimentary and Metamorphic RocksAmphibolite Proterozoic Middle Proterozoic Middle Proterozoic none none 3 1.90922876203e+004 3.81127875876e+006Equigranular, massive to well foliated, interlayered, rarely discordant, metamorphosed intrusive and extrusive mafic rock; may include metasedimentary rock 698Zabg Blue Ridge Belt Blue Ridge Alligator Back Formation Sedimentary and Metamorphic RocksGneiss Proterozoic Late Proterozoic Late Proterozoic none none 16 1.25289880776e+004 3.67854014822e+006Finely laminated to thin layered; locally contains massive gneiss and micaceous granule conglomerate; includes schist, phyllite, and amphibolite 699CZfv Carolina Slate Belt Carolina Slate Belt Metamorphic rocks Metamorphic Rocks Felsic metavolcanic rock Proterozoic-PhanerozoicLater Proterozoic-PaleozoicLate Proterozoic-Cambriannone none 6 5.47454789731e+004 3.54952738030e+007Metamorphosed dacitic to rhyolitic flows and tuffs, light gray to greenish gray; interbedded with mafic and intermediate metavolcanic rock, meta-argillite, and metamudstone. CZfv2 - Cid Formation (southwest of Asheboro), CZfv1 - Uwharrie Formation (at Asheboro and to south) 700Ccl Grandfather Mountain Window Grandfather Mountain Window Chilhowee Group Metamorphic Rocks Lower Chilhowee Group Phanerozioc Paleozoic Cambrian none none 9 4.45972226406e+003 8.63012343942e+005Feldspathic arenite, white to yellowish gray. Minor silty shale, feldspathic metasiltstone, and metaconglomerate in lower part 701Dqd Blue Ridge Belt Blue Ridge Intrusive Rocks Intrusive Rocks Quartz diorite to granodiorite Phanerozioc Paleozoic Devonian 390 4 7 8.12000787018e+003 2.81022401264e+006Contains biotite, muscovite, and xenocrysts. Includes Whiteside Mountain, Stone Mountain, Mount Airy, Spruce Pine, and other smaller plutons 702Dqd Blue Ridge Belt Blue Ridge Intrusive Rocks Intrusive Rocks Quartz diorite to granodiorite Phanerozioc Paleozoic Devonian 390 4 7 4.00193690551e+003 4.90795126478e+005Contains biotite, muscovite, and xenocrysts. Includes Whiteside Mountain, Stone Mountain, Mount Airy, Spruce Pine, and other smaller plutons 703CZiv Carolina Slate Belt Carolina Slate Belt Metamorphic rocks Metamorphic Rocks Intermediate metavolcanic rock Proterozoic-PhanerozoicLater Proterozoic-PaleozoicLate Proterozoic-Cambriannone none 5 1.05090108017e+004 4.07883277392e+006Metamorphosed andesitic tuffs and flows, medium to dark grayish green; minor felsic and mafic metavolcanic rock 704PzZu Blue Ridge Belt Blue Ridge Intrusive Rocks Intrusive Rocks Meta-ultramafic rock Phanerozioc Paleozoic Permian none none 5 2.07972913598e+003 2.19588136175e+005Metamorphosed dunite, local peridotite; serpentinite, soapstone, and other altered ultramafic rock. Only larger bodies shown 705Tt Coastal Plain Coastal Plain Tertiary Sedimentary Rocks Terrace deposites and upland sediment Phanerozioc Cenozoic Tertiary none none 12 4.28781497133e+003 8.87116289916e+005Gravel, clayey sand, and sand, minor iron-oxide cemented sandstone 706Ymg Blue Ridge Belt Blue Ridge Metamorphic rocks Sedimentary and Metamorphic RocksMigmatitic biotite-hornblende gneisses Proterozoic Middle Proterozoic Middle Proterozoic 1214 12 2 1.41821876703e+005 1.16420799572e+008Layered biotite-granite gneiss, biotite-hornblende gneiss, amphibolite, calc-silicate rock, locally contains relict granulite facies rock 707Ybam Blue Ridge Belt Blue Ridge Sedimentary and Metamorphic Rocks Sedimentary and Metamorphic RocksAmphibolite Proterozoic Middle Proterozoic Middle Proterozoic none none 3 2.17197000260e+003 2.53364316425e+005Equigranular, massive to well foliated, interlayered, rarely discordant, metamorphosed intrusive and extrusive mafic rock; may include metasedimentary rock 708CZfv Eastern Slate Belt Eastern Slate Belt Metamorphic rocks Metamorphic Rocks Felsic metavolcanic rock Proterozoic-PhanerozoicLater Proterozoic-PaleozoicLate Proterozoic-Cambriannone none 6 2.87135352703e+003 4.85427635881e+005Metamorphosed dacitic to rhyolitic flows and tuffs, light gray to greenish gray; interbedded with mafic and intermediate metavolcanic rock, meta-argillite, and metamudstone 709OCg Inner Piedmont, Chauga Belt, Smith River Allochthon, and Sauratown MountainInner Piedmont Intrusive Rocks Intrusive Rocks Metamorphosed granitic rock Phanerozioc Paleozoic Cambrian-Ordovician 455-540 10 5 1.25774313968e+004 3.32571216950e+006Equigranular to megacrystic, foliated to massive. Includes Toluca Granite 710Tt Coastal Plain Coastal Plain Tertiary Sedimentary Rocks Terrace deposites and upland sediment Phanerozioc Cenozoic Tertiary none none 12 2.75176387742e+003 4.44757916359e+005Gravel, clayey sand, and sand, minor iron-oxide cemented sandstone 711OCg Inner Piedmont, Chauga Belt, Smith River Allochthon, and Sauratown MountainInner Piedmont Intrusive Rocks Intrusive Rocks Metamorphosed granitic rock Phanerozioc Paleozoic Cambrian-Ordovician 455-540 10 5 4.91203696483e+004 4.51188800131e+007Equigranular to megacrystic, foliated to massive. Includes Toluca Granite 712PzZu Blue Ridge Belt Blue Ridge Intrusive Rocks Intrusive Rocks Meta-ultramafic rock Phanerozioc Paleozoic Permian none none 5 2.70079146294e+003 4.04774153926e+005Metamorphosed dunite, local peridotite; serpentinite, soapstone, and other altered ultramafic rock. Only larger bodies shown 713Ybam Blue Ridge Belt Blue Ridge Sedimentary and Metamorphic Rocks Sedimentary and Metamorphic RocksAmphibolite Proterozoic Middle Proterozoic Middle Proterozoic none none 3 3.13729048077e+003 5.28691971904e+005Equigranular, massive to well foliated, interlayered, rarely discordant, metamorphosed intrusive and extrusive mafic rock; may include metasedimentary rock 714OCg Inner Piedmont, Chauga Belt, Smith River Allochthon, and Sauratown MountainInner Piedmont Intrusive Rocks Intrusive Rocks Metamorphosed granitic rock Phanerozioc Paleozoic Cambrian-Ordovician 455-540 10 5 2.43143005002e+004 1.10945517390e+007Equigranular to megacrystic, foliated to massive. Includes Toluca Granite 715CZv Charlotte and Milton Belts Charlotte Belt Metamorphic rocks Metamorphic Rocks Metavolcanic rock Proterozoic-PhanerozoicLater Proterozoic-PaleozoicLate Proterozoic-Cambriannone none 5 3.47908844182e+005 5.84185242388e+008Interbedded felsic to mafic tuffs and flowrock 716CZfv Carolina Slate Belt Carolina Slate Belt Metamorphic rocks Metamorphic Rocks Felsic metavolcanic rock Proterozoic-PhanerozoicLater Proterozoic-PaleozoicLate Proterozoic-Cambriannone none 6 6.00748653279e+003 2.11846728837e+006Metamorphosed dacitic to rhyolitic flows and tuffs, light gray to greenish gray; interbedded with mafic and intermediate metavolcanic rock, meta-argillite, and metamudstone. CZfv2 - Cid Formation (southwest of Asheboro), CZfv1 - Uwharrie Formation (at Asheboro and to south) 717Chg Inner Piedmont, Chauga Belt, Smith River Allochthon, and Sauratown MountainChauga Belt Intrusive Rocks Intrusive Rocks Henderson Gneiss Phanerozioc Paleozoic Cambrian 524 10 4 1.42965788557e+004 3.70235461690e+006Monzonitic to granodioritic, inequigranular 718Chg Inner Piedmont, Chauga Belt, Smith River Allochthon, and Sauratown MountainChauga Belt Intrusive Rocks Intrusive Rocks Henderson Gneiss Phanerozioc Paleozoic Cambrian 524 10 4 8.95021882072e+003 1.87292119893e+006Monzonitic to granodioritic, inequigranular 719Tt Coastal Plain Coastal Plain Tertiary Sedimentary Rocks Terrace deposites and upland sediment Phanerozioc Cenozoic Tertiary none none 12 1.17847870005e+005 7.53457805007e+007Gravel, clayey sand, and sand, minor iron-oxide cemented sandstone 720CZam Raleigh Belt Raleigh Belt Intrusive Rocks Intrusive Rocks Amphibolite Proterozoic-PhanerozoicLater Proterozoic-PaleozoicLate Proterozoic-Cambriannone none 7 1.98103759935e+004 7.22781298043e+006Metamorphosed mafic extrusive and intrusive rock; includes hornblende gneiss, thin layers of mica schist, and small nonlayered masses of metadiorite and metagabbro 721Qp Coastal Plain Coastal Plain Quaternary Surficial deposits Surficial deposits, undivided Phanerozioc Cenozoic Quaternary none none 14 1.59291257694e+003 1.57748821991e+005Sand, clay, gravel, and peat deposited in marine, fluvial, eolian, and lacustrine environments. Quaternary deposits not shown at altitudes greater than approximately 25 feet above mean sea level (Suffolk Scarp, in part) 722Ymam Blue Ridge Belt Blue Ridge Metamorphic rocks Sedimentary and Metamorphic RocksAmphibolite Proterozoic Middle Proterozoic Middle Proterozoic none none 1 1.82823432047e+004 4.35631407994e+006Equigranular, massive to well foliated, interlayered, rarely discordant, metamorphosed intrusive and extrusive mafic rock; may include metasedimentary rock 723CZg Carolina Slate Belt Carolina Slate Belt Intrusive Rocks Intrusive Rocks Metamorphosed granitic rock Proterozoic-PhanerozoicLater Proterozoic-PaleozoicLate Proterozoic-Cambrian520-650 3,21,9,23,28,15 1 7.65019702452e+003 3.62434191894e+006Megacrystic, well foliated; locally contains hornblende. Chapel Hill, Chatham, Farrington, Meadow Flats, Mt. Moriah, Parks Crossroads plutons, and Roxboro and Vance County suites 724Qp Coastal Plain Coastal Plain Quaternary Surficial deposits Surficial deposits, undivided Phanerozioc Cenozoic Quaternary none none 14 2.77447497921e+003 3.02429222009e+005Sand, clay, gravel, and peat deposited in marine, fluvial, eolian, and lacustrine environments. Quaternary deposits not shown at altitudes greater than approximately 25 feet above mean sea level (Suffolk Scarp, in part) 725CZmv Carolina Slate Belt Carolina Slate Belt Metamorphic rocks Metamorphic Rocks Mafic metavolcanic rock Proterozoic-PhanerozoicLater Proterozoic-PaleozoicLate Proterozoic-Cambriannone none 7 8.24670447994e+004 7.81096437945e+007Metamorphosed basaltic flows and tuffs, dark green to black; interbedded with felsic and intermediate metavolcanic rock and metamudstone. CZmv1 - Cid Formation (southwest of Asheboro) 726Ccu Grandfather Mountain Window Grandfather Mountain Window Chilhowee Group Metamorphic Rocks Upper Chilhowee Group Phanerozioc Paleozoic Cambrian none none 10 1.54639975970e+004 9.18257043732e+006Vitreous quartzite; white to light gray; interbedded sand metasiltstone and slate 727Tt Coastal Plain Coastal Plain Tertiary Sedimentary Rocks Terrace deposites and upland sediment Phanerozioc Cenozoic Tertiary none none 12 6.13054283230e+004 3.41543492983e+007Gravel, clayey sand, and sand, minor iron-oxide cemented sandstone 728Tt Coastal Plain Coastal Plain Tertiary Sedimentary Rocks Terrace deposites and upland sediment Phanerozioc Cenozoic Tertiary none none 12 2.65086996774e+004 1.87607807356e+007Gravel, clayey sand, and sand, minor iron-oxide cemented sandstone 729Qp Coastal Plain Coastal Plain Quaternary Surficial deposits Surficial deposits, undivided Phanerozioc Cenozoic Quaternary none none 14 2.39116826897e+003 2.51613241362e+005Sand, clay, gravel, and peat deposited in marine, fluvial, eolian, and lacustrine environments. Quaternary deposits not shown at altitudes greater than approximately 25 feet above mean sea level (Suffolk Scarp, in part) 730CZfv Eastern Slate Belt Eastern Slate Belt Metamorphic rocks Metamorphic Rocks Felsic metavolcanic rock Proterozoic-PhanerozoicLater Proterozoic-PaleozoicLate Proterozoic-Cambriannone none 6 8.19013409057e+003 2.25443712805e+006Metamorphosed dacitic to rhyolitic flows and tuffs, light gray to greenish gray; interbedded with mafic and intermediate metavolcanic rock, meta-argillite, and metamudstone 731Qp Coastal Plain Coastal Plain Quaternary Surficial deposits Surficial deposits, undivided Phanerozioc Cenozoic Quaternary none none 14 4.14029424148e+003 6.71957068971e+005Sand, clay, gravel, and peat deposited in marine, fluvial, eolian, and lacustrine environments. Quaternary deposits not shown at altitudes greater than approximately 25 feet above mean sea level (Suffolk Scarp, in part) 732Ybam Blue Ridge Belt Blue Ridge Sedimentary and Metamorphic Rocks Sedimentary and Metamorphic RocksAmphibolite Proterozoic Middle Proterozoic Middle Proterozoic none none 3 1.81774012375e+003 2.01149719012e+005Equigranular, massive to well foliated, interlayered, rarely discordant, metamorphosed intrusive and extrusive mafic rock; may include metasedimentary rock 733CZms Inner Piedmont, Chauga Belt, Smith River Allochthon, and Sauratown MountainInner Piedmont Metamorphic rocks Metamorphic Rocks Mica schist Proterozoic-PhanerozoicLater Proterozoic-PaleozoicLate Proterozoic-Cambriannone none 14 1.96482336149e+004 1.35908102818e+007Garnet, staurolite, kyanite, or sillimanite occur locally; lenses and layers of quartz schist, micaceous quartzite, calc-silicate rock, biotite gneiss, amphibolite, and phyllite 734CZmd Eastern Slate Belt Eastern Slate Belt Metamorphic rocks Metamorphic Rocks Metamudstone and meta-argillite Proterozoic-PhanerozoicLater Proterozoic-PaleozoicLate Proterozoic-Cambriannone none 2 2.72704301798e+004 1.03143383500e+007Bedding plane and axial-planar cleavage common; interbedded with metasandstone, metaconglomerate, and metavolcanic rock 1856Chg Inner Piedmont, Chauga Belt, Smith River Allochthon, and Sauratown MountainChauga Belt Intrusive Rocks Intrusive Rocks Henderson Gneiss Phanerozioc Paleozoic Cambrian 524 10 4 1.88692494603e+004 5.20223138853e+006Monzonitic to granodioritic, inequigranular 735Qp Coastal Plain Coastal Plain Quaternary Surficial deposits Surficial deposits, undivided Phanerozioc Cenozoic Quaternary none none 14 1.00638497419e+003 6.33320488875e+004Sand, clay, gravel, and peat deposited in marine, fluvial, eolian, and lacustrine environments. Quaternary deposits not shown at altitudes greater than approximately 25 feet above mean sea level (Suffolk Scarp, in part) 736Tt Coastal Plain Coastal Plain Tertiary Sedimentary Rocks Terrace deposites and upland sediment Phanerozioc Cenozoic Tertiary none none 12 4.79501785669e+003 1.20528042860e+006Gravel, clayey sand, and sand, minor iron-oxide cemented sandstone 737Qp Coastal Plain Coastal Plain Quaternary Surficial deposits Surficial deposits, undivided Phanerozioc Cenozoic Quaternary none none 14 1.42833327883e+003 1.19021451000e+005Sand, clay, gravel, and peat deposited in marine, fluvial, eolian, and lacustrine environments. Quaternary deposits not shown at altitudes greater than approximately 25 feet above mean sea level (Suffolk Scarp, in part) 738Tt Coastal Plain Coastal Plain Tertiary Sedimentary Rocks Terrace deposites and upland sediment Phanerozioc Cenozoic Tertiary none none 12 2.06873655179e+003 3.03054630165e+005Gravel, clayey sand, and sand, minor iron-oxide cemented sandstone 749PzZq Charlotte and Milton Belts Charlotte Belt Intrusive Rocks Intrusive Rocks Metamorphosed quartz diorite Phanerozioc Paleozoic Permian none none 5 6.43676179498e+005 1.30434299758e+009Foliated to massive 750Tt Coastal Plain Coastal Plain Tertiary Sedimentary Rocks Terrace deposites and upland sediment Phanerozioc Cenozoic Tertiary none none 12 8.22805702358e+003 2.49424725712e+006Gravel, clayey sand, and sand, minor iron-oxide cemented sandstone 751Zsr Blue Ridge Belt Blue Ridge Snowbird Group Sedimentary and Metamorphic RocksRoaring Fork Sandstone Proterozoic Late Proterozoic Late Proterozoic none none 22 8.00394847883e+004 4.44962841254e+007Greenish gray, fine to medium grained, locally cross-bedded, metamorphosed; interbedded metasiltstone and phyllite 752Zsl Blue Ridge Belt Blue Ridge Snowbird Group Sedimentary and Metamorphic RocksLongarm Quartzite Proterozoic Late Proterozoic Late Proterozoic none none 21 1.03462895955e+005 7.53232822244e+007Cross-bedded, feldspathic, locally conglomeratic; includes dark slate and metasiltstone 753Zsp Blue Ridge Belt Blue Ridge Snowbird Group Sedimentary and Metamorphic RocksPigeon Siltstone Proterozoic Late Proterozoic Late Proterozoic none none 23 2.02937491376e+004 7.20887905233e+006Thin bedded to laminated, commonly cross-bedded, metamorphosed; locally includes argillite and calcareous and ankeritic metasiltstone grading to silty metalimestone 754Qp Coastal Plain Coastal Plain Quaternary Surficial deposits Surficial deposits, undivided Phanerozioc Cenozoic Quaternary none none 14 1.28750572758e+003 1.01543609056e+005Sand, clay, gravel, and peat deposited in marine, fluvial, eolian, and lacustrine environments. Quaternary deposits not shown at altitudes greater than approximately 25 feet above mean sea level (Suffolk Scarp, in part) 755Chg Inner Piedmont, Chauga Belt, Smith River Allochthon, and Sauratown MountainChauga Belt Intrusive Rocks Intrusive Rocks Henderson Gneiss Phanerozioc Paleozoic Cambrian 524 10 4 3.92435769160e+004 7.93946703775e+006Monzonitic to granodioritic, inequigranular 756Qp Coastal Plain Coastal Plain Quaternary Surficial deposits Surficial deposits, undivided Phanerozioc Cenozoic Quaternary none none 14 3.02831484370e+003 4.87141243909e+005Sand, clay, gravel, and peat deposited in marine, fluvial, eolian, and lacustrine environments. Quaternary deposits not shown at altitudes greater than approximately 25 feet above mean sea level (Suffolk Scarp, in part) 757Qp Coastal Plain Coastal Plain Quaternary Surficial deposits Surficial deposits, undivided Phanerozioc Cenozoic Quaternary none none 14 1.20183978888e+003 7.60507514531e+004Sand, clay, gravel, and peat deposited in marine, fluvial, eolian, and lacustrine environments. Quaternary deposits not shown at altitudes greater than approximately 25 feet above mean sea level (Suffolk Scarp, in part) 758Ccu Grandfather Mountain Window Grandfather Mountain Window Chilhowee Group Metamorphic Rocks Upper Chilhowee Group Phanerozioc Paleozoic Cambrian none none 10 6.80945324812e+004 2.32134659790e+007Vitreous quartzite; white to light gray; interbedded sand metasiltstone and slate 759Qp Coastal Plain Coastal Plain Quaternary Surficial deposits Surficial deposits, undivided Phanerozioc Cenozoic Quaternary none none 14 2.40012147698e+003 3.60755479863e+005Sand, clay, gravel, and peat deposited in marine, fluvial, eolian, and lacustrine environments. Quaternary deposits not shown at altitudes greater than approximately 25 feet above mean sea level (Suffolk Scarp, in part) 770CZmd2Carolina Slate Belt Carolina Slate Belt Metamorphic rocks Metamorphic Rocks Cid Formation Proterozoic-PhanerozoicLater Proterozoic-PaleozoicLate Proterozoic-Cambriannone none 8 3.04498817847e+005 4.54173613692e+008Cid Formation (southwest of Asheboro) 771PzZq Charlotte and Milton Belts Charlotte Belt Intrusive Rocks Intrusive Rocks Metamorphosed quartz diorite Phanerozioc Paleozoic Permian none none 5 7.05206086547e+004 7.37103183467e+007Foliated to massive 1834Ybgg Grandfather Mountain Window Grandfather Mountain Window Metamorphic rocks Metamorphic Rocks Biotite granitic gneiss Proterozoic Middle Proterozoic Middle Proterozoic 950-125014 1 7.18488074191e+003 3.00475550772e+006Contains paragneiss and granitic to quartz monzonitic orthogneiss; locally schistose and mylonitic. Locally includes tectonic slices, infolded remnants, or recrystallized equivalents of the Grandfather Mountain Formation. Equivalent to the Wilson Creek Gneiss 772CZmd Carolina Slate Belt Carolina Slate Belt Metamorphic rocks Metamorphic Rocks Metamudstone and meta-argillite Proterozoic-PhanerozoicLater Proterozoic-PaleozoicLate Proterozoic-Cambriannone none 8 4.50176201602e+005 4.52459028282e+008Thin to thick bedded; bedding plane and axial-planar cleavage common; interbedded with metasandstone, metaconglomerate, and metavolcanic rock. CZmd3 - Floyd Church Formation, CZmd2 - Cid Formation, CZmd1 - Tillery Formation: (southwest of Asheboro) 773CZg Carolina Slate Belt Carolina Slate Belt Intrusive Rocks Intrusive Rocks Metamorphosed granitic rock Proterozoic-PhanerozoicLater Proterozoic-PaleozoicLate Proterozoic-Cambrian520-650 3,21,9,23,28,15 1 5.01322257492e+003 1.08392466561e+006Megacrystic, well foliated; locally contains hornblende. Chapel Hill, Chatham, Farrington, Meadow Flats, Mt. Moriah, Parks Crossroads plutons, and Roxboro and Vance County suites 774Ybam Blue Ridge Belt Blue Ridge Sedimentary and Metamorphic Rocks Sedimentary and Metamorphic RocksAmphibolite Proterozoic Middle Proterozoic Middle Proterozoic none none 3 7.04765460579e+003 1.03970019426e+006Equigranular, massive to well foliated, interlayered, rarely discordant, metamorphosed intrusive and extrusive mafic rock; may include metasedimentary rock 775CZms Inner Piedmont, Chauga Belt, Smith River Allochthon, and Sauratown MountainInner Piedmont Metamorphic rocks Metamorphic Rocks Mica schist Proterozoic-PhanerozoicLater Proterozoic-PaleozoicLate Proterozoic-Cambriannone none 14 8.52798664658e+003 1.91893656661e+006Garnet, staurolite, kyanite, or sillimanite occur locally; lenses and layers of quartz schist, micaceous quartzite, calc-silicate rock, biotite gneiss, amphibolite, and phyllite 776Zm Blue Ridge Belt Blue Ridge Intrusive Rocks Intrusive Rocks Max Patch Granite Proterozoic Late Proterozoic Late Proterozoic none none 2 1.02856858525e+004 4.60755151589e+006Mottled pink and light green, coarse grained to porphyritic, massive; contains biotite 777Zrb Blue Ridge Belt Blue Ridge Ocoee Supergroup Sedimentary and Metamorphic RocksRich Butt Sandstone Proterozoic Late Proterozoic Late Proterozoic none none 25 3.42870470153e+004 1.89119589687e+007Feldspathic; interbedded with dark argillaceous layers and laminae. Stratigraphic position uncertain 787CZmd Carolina Slate Belt Carolina Slate Belt Metamorphic rocks Metamorphic Rocks Metamudstone and meta-argillite Proterozoic-PhanerozoicLater Proterozoic-PaleozoicLate Proterozoic-Cambriannone none 8 7.92444459454e+003 2.06482745485e+006Thin to thick bedded; bedding plane and axial-planar cleavage common; interbedded with metasandstone, metaconglomerate, and metavolcanic rock. CZmd3 - Floyd Church Formation, CZmd2 - Cid Formation, CZmd1 - Tillery Formation: (southwest of Asheboro) 788CZms Inner Piedmont, Chauga Belt, Smith River Allochthon, and Sauratown MountainInner Piedmont Metamorphic rocks Metamorphic Rocks Mica schist Proterozoic-PhanerozoicLater Proterozoic-PaleozoicLate Proterozoic-Cambriannone none 14 7.62365399705e+004 1.73529228091e+007Garnet, staurolite, kyanite, or sillimanite occur locally; lenses and layers of quartz schist, micaceous quartzite, calc-silicate rock, biotite gneiss, amphibolite, and phyllite 789CZmd Carolina Slate Belt Carolina Slate Belt Metamorphic rocks Metamorphic Rocks Metamudstone and meta-argillite Proterozoic-PhanerozoicLater Proterozoic-PaleozoicLate Proterozoic-Cambriannone none 8 8.66077611616e+003 2.95068842096e+006Thin to thick bedded; bedding plane and axial-planar cleavage common; interbedded with metasandstone, metaconglomerate, and metavolcanic rock. CZmd3 - Floyd Church Formation, CZmd2 - Cid Formation, CZmd1 - Tillery Formation: (southwest of Asheboro) 790CZiv Carolina Slate Belt Carolina Slate Belt Metamorphic rocks Metamorphic Rocks Intermediate metavolcanic rock Proterozoic-PhanerozoicLater Proterozoic-PaleozoicLate Proterozoic-Cambriannone none 5 1.76411574523e+004 4.87057804700e+006Metamorphosed andesitic tuffs and flows, medium to dark grayish green; minor felsic and mafic metavolcanic rock 791OCg Inner Piedmont, Chauga Belt, Smith River Allochthon, and Sauratown MountainInner Piedmont Intrusive Rocks Intrusive Rocks Metamorphosed granitic rock Phanerozioc Paleozoic Cambrian-Ordovician 455-540 10 5 1.30932249291e+004 5.18891863777e+006Equigranular to megacrystic, foliated to massive. Includes Toluca Granite 792Ymam Blue Ridge Belt Blue Ridge Metamorphic rocks Sedimentary and Metamorphic RocksAmphibolite Proterozoic Middle Proterozoic Middle Proterozoic none none 1 2.45118086854e+004 8.05713278760e+006Equigranular, massive to well foliated, interlayered, rarely discordant, metamorphosed intrusive and extrusive mafic rock; may include metasedimentary rock 793OCg Inner Piedmont, Chauga Belt, Smith River Allochthon, and Sauratown MountainInner Piedmont Intrusive Rocks Intrusive Rocks Metamorphosed granitic rock Phanerozioc Paleozoic Cambrian-Ordovician 455-540 10 5 1.50527358336e+004 4.41105685955e+006Equigranular to megacrystic, foliated to massive. Includes Toluca Granite 794CZba Inner Piedmont, Chauga Belt, Smith River Allochthon, and Sauratown MountainInner Piedmont Metamorphic rocks Metamorphic Rocks Megacrystic biotite gneiss Proterozoic-PhanerozoicLater Proterozoic-PaleozoicLate Proterozoic-Cambriannone none 11 1.55524678783e+004 1.26820934303e+007Poorly layered to massive; megacrysts of microcline and quartz; local mica schist, amphibolite, and biotite gneiss 795Ccu Grandfather Mountain Window Grandfather Mountain Window Chilhowee Group Metamorphic Rocks Upper Chilhowee Group Phanerozioc Paleozoic Cambrian none none 10 1.21286694549e+004 3.90220922707e+006Vitreous quartzite; white to light gray; interbedded sand metasiltstone and slate 796DSg Charlotte and Milton Belts Charlotte Belt Intrusive Rocks Intrusive Rocks Granite of Salisbury Plutonic Suite Phanerozioc Paleozoic Silurian-Devonian 385-415 5 10 2.22696405755e+004 1.99954284590e+007Pink, massive to weakly foliated. Gold Hill, Kannapolis, Salisbury, Southmont, and Yadkin intrusives 797CZph Carolina Slate Belt Carolina Slate Belt Metamorphic rocks Metamorphic Rocks Phyllite and schist Proterozoic-PhanerozoicLater Proterozoic-PaleozoicLate Proterozoic-Cambriannone none 1 3.22134750153e+004 1.23222720814e+007Locally laminated and pyritic; includes phyllonite, sheared fine-grained metasediment, and metavolcanic rock. In Lilesville granite aureole, includes hornfels (CZph1), and biotite gneiss and schist (CZbg) 798Ymam Blue Ridge Belt Blue Ridge Metamorphic rocks Sedimentary and Metamorphic RocksAmphibolite Proterozoic Middle Proterozoic Middle Proterozoic none none 1 4.82639109691e+003 8.49261093582e+005Equigranular, massive to well foliated, interlayered, rarely discordant, metamorphosed intrusive and extrusive mafic rock; may include metasedimentary rock 799CZmd1Carolina Slate Belt Carolina Slate Belt Metamorphic rocks Metamorphic Rocks Tillery Formation Proterozoic-PhanerozoicLater Proterozoic-PaleozoicLate Proterozoic-Cambriannone none 8 3.20088382800e+005 6.50994874701e+008Tillery Formation (southwest of Asheboro) 800Ybgg Grandfather Mountain Window Grandfather Mountain Window Metamorphic rocks Metamorphic rocks Biotite granitic gneiss Proterozoic Middle Proterozoic Middle Proterozoic 950-125014 1 4.72201478750e+004 3.39608500725e+007Contains paragneiss and granitic to quartz monzonitic orthogneiss; locally schistose and mylonitic. Locally includes tectonic slices, infolded remnants, or recrystallized equivalents of the Grandfather Mountain Formation. Equivalent to the Wilson Creek Gneiss 801CZfv Carolina Slate Belt Carolina Slate Belt Metamorphic rocks Metamorphic Rocks Felsic metavolcanic rock Proterozoic-PhanerozoicLater Proterozoic-PaleozoicLate Proterozoic-Cambriannone none 6 1.71210346728e+003 1.08500120294e+005Metamorphosed dacitic to rhyolitic flows and tuffs, light gray to greenish gray; interbedded with mafic and intermediate metavolcanic rock, meta-argillite, and metamudstone. CZfv2 - Cid Formation (southwest of Asheboro), CZfv1 - Uwharrie Formation (at Asheboro and to south) 802Tt Coastal Plain Coastal Plain Tertiary Sedimentary Rocks Terrace deposites and upland sediment Phanerozioc Cenozoic Tertiary none none 12 6.55618206960e+003 1.67857003228e+006Gravel, clayey sand, and sand, minor iron-oxide cemented sandstone 803CZiv Carolina Slate Belt Carolina Slate Belt Metamorphic rocks Metamorphic Rocks Intermediate metavolcanic rock Proterozoic-PhanerozoicLater Proterozoic-PaleozoicLate Proterozoic-Cambriannone none 5 1.99894381787e+004 7.19502009555e+006Metamorphosed andesitic tuffs and flows, medium to dark grayish green; minor felsic and mafic metavolcanic rock 804OCg Inner Piedmont, Chauga Belt, Smith River Allochthon, and Sauratown MountainInner Piedmont Intrusive Rocks Intrusive Rocks Metamorphosed granitic rock Phanerozioc Paleozoic Cambrian-Ordovician 455-540 10 5 1.74431295525e+004 5.84101835400e+006Equigranular to megacrystic, foliated to massive. Includes Toluca Granite 805CZg Charlotte and Milton Belts Charlotte Belt Intrusive Rocks Intrusive Rocks Metamorphosed granitic rock Proterozoic-PhanerozoicLater Proterozoic-PaleozoicLate Proterozoic-Cambriannone none 1 5.09267128275e+003 1.64183997155e+006Megacrystic, well foliated; locally contains hornblende 807PzZg Carolina Slate Belt Carolina Slate Belt Intrusive Rocks Intrusive Rocks Metamorphosed gabbro and diorite Phanerozioc Paleozoic Permian none none 4 7.86495039956e+003 1.93266938233e+006Foliated to masive 808CZbg Inner Piedmont, Chauga Belt, Smith River Allochthon, and Sauratown MountainInner Piedmont Metamorphic rocks Metamorphic Rocks Biotite gneiss and schist Proterozoic-PhanerozoicLater Proterozoic-PaleozoicLate Proterozoic-Cambriannone none 16 2.97109664543e+004 2.12169884480e+007Inequigranular, locally abundant potassic feldspar and garnet; interlayered and gradational with calc-silicate rock, sillimanite-mica schist, and amphibolite. Contains small masses of granitic rock 809CZiv Carolina Slate Belt Carolina Slate Belt Metamorphic rocks Metamorphic Rocks Intermediate metavolcanic rock Proterozoic-PhanerozoicLater Proterozoic-PaleozoicLate Proterozoic-Cambriannone none 5 1.85509668332e+004 4.27875143695e+006Metamorphosed andesitic tuffs and flows, medium to dark grayish green; minor felsic and mafic metavolcanic rock 810Ymam Blue Ridge Belt Blue Ridge Metamorphic rocks Sedimentary and Metamorphic RocksAmphibolite Proterozoic Middle Proterozoic Middle Proterozoic none none 1 4.27115939149e+004 1.09575372768e+007Equigranular, massive to well foliated, interlayered, rarely discordant, metamorphosed intrusive and extrusive mafic rock; may include metasedimentary rock 811CZms Inner Piedmont, Chauga Belt, Smith River Allochthon, and Sauratown MountainInner Piedmont Metamorphic rocks Metamorphic Rocks Mica schist Proterozoic-PhanerozoicLater Proterozoic-PaleozoicLate Proterozoic-Cambriannone none 14 5.68819281842e+004 3.75254147925e+007Garnet, staurolite, kyanite, or sillimanite occur locally; lenses and layers of quartz schist, micaceous quartzite, calc-silicate rock, biotite gneiss, amphibolite, and phyllite 821CZmd Carolina Slate Belt Carolina Slate Belt Metamorphic rocks Metamorphic Rocks Metamudstone and meta-argillite Proterozoic-PhanerozoicLater Proterozoic-PaleozoicLate Proterozoic-Cambriannone none 8 4.88798307384e+004 4.61609433337e+007Thin to thick bedded; bedding plane and axial-planar cleavage common; interbedded with metasandstone, metaconglomerate, and metavolcanic rock. CZmd3 - Floyd Church Formation, CZmd2 - Cid Formation, CZmd1 - Tillery Formation: (southwest of Asheboro) 822Chg Inner Piedmont, Chauga Belt, Smith River Allochthon, and Sauratown MountainChauga Belt Intrusive Rocks Intrusive Rocks Henderson Gneiss Phanerozioc Paleozoic Cambrian 524 10 4 3.59961683149e+004 9.38231057267e+006Monzonitic to granodioritic, inequigranular 823DSg Charlotte and Milton Belts Charlotte Belt Intrusive Rocks Intrusive Rocks Granite of Salisbury Plutonic Suite Phanerozioc Paleozoic Silurian-Devonian 385-415 5 10 2.69546724923e+004 1.10338995130e+007Pink, massive to weakly foliated. Gold Hill, Kannapolis, Salisbury, Southmont, and Yadkin intrusives 824Tt Coastal Plain Coastal Plain Tertiary Sedimentary Rocks Terrace deposites and upland sediment Phanerozioc Cenozoic Tertiary none none 12 1.00436824962e+004 4.40035572426e+006Gravel, clayey sand, and sand, minor iron-oxide cemented sandstone 825CZbf Charlotte and Milton Belts Charlotte Belt Metamorphic rocks Metamorphic Rocks Fine-grained biotite gneiss Proterozoic-PhanerozoicLater Proterozoic-PaleozoicLate Proterozoic-Cambriannone none 3 1.64941385502e+005 2.80276848072e+008Massive to strongly foliated; minor layers of amphibolite and muscovite schist 826CZg Carolina Slate Belt Carolina Slate Belt Intrusive Rocks Intrusive Rocks Metamorphosed granitic rock Proterozoic-PhanerozoicLater Proterozoic-PaleozoicLate Proterozoic-Cambrian520-650 3,21,9,23,28,15 1 4.89408853372e+004 6.48951552343e+007Megacrystic, well foliated; locally contains hornblende. Chapel Hill, Chatham, Farrington, Meadow Flats, Mt. Moriah, Parks Crossroads plutons, and Roxboro and Vance County suites 827CZiv Carolina Slate Belt Carolina Slate Belt Metamorphic rocks Metamorphic Rocks Intermediate metavolcanic rock Proterozoic-PhanerozoicLater Proterozoic-PaleozoicLate Proterozoic-Cambriannone none 5 1.39397229978e+004 5.92486820255e+006Metamorphosed andesitic tuffs and flows, medium to dark grayish green; minor felsic and mafic metavolcanic rock 828CZg Carolina Slate Belt Carolina Slate Belt Intrusive Rocks Intrusive Rocks Metamorphosed granitic rock Proterozoic-PhanerozoicLater Proterozoic-PaleozoicLate Proterozoic-Cambrian520-650 3,21,9,23,28,15 1 5.90814103673e+003 1.64756084253e+006Megacrystic, well foliated; locally contains hornblende. Chapel Hill, Chatham, Farrington, Meadow Flats, Mt. Moriah, Parks Crossroads plutons, and Roxboro and Vance County suites 829Tt Coastal Plain Coastal Plain Tertiary Sedimentary Rocks Terrace deposites and upland sediment Phanerozioc Cenozoic Tertiary none none 12 2.27606636351e+003 3.15776743797e+005Gravel, clayey sand, and sand, minor iron-oxide cemented sandstone 830CZfv Carolina Slate Belt Carolina Slate Belt Metamorphic rocks Metamorphic Rocks Felsic metavolcanic rock Proterozoic-PhanerozoicLater Proterozoic-PaleozoicLate Proterozoic-Cambriannone none 6 1.58923722603e+004 8.17348930059e+006Metamorphosed dacitic to rhyolitic flows and tuffs, light gray to greenish gray; interbedded with mafic and intermediate metavolcanic rock, meta-argillite, and metamudstone. CZfv2 - Cid Formation (southwest of Asheboro), CZfv1 - Uwharrie Formation (at Asheboro and to south) 831Tt Coastal Plain Coastal Plain Tertiary Sedimentary Rocks Terrace deposites and upland sediment Phanerozioc Cenozoic Tertiary none none 12 4.58235109669e+004 2.63279284500e+007Gravel, clayey sand, and sand, minor iron-oxide cemented sandstone 832CZmv Charlotte and Milton Belts Charlotte Belt Metamorphic rocks Metamorphic Rocks Mafic metavolcanic rock Proterozoic-PhanerozoicLater Proterozoic-PaleozoicLate Proterozoic-Cambriannone none 4 3.19714530064e+004 1.97134979471e+007Metamorphosed basaltic to andesitic tuffs and flows, grayish green to black. Locally includes hypabyssal intrusives and minor felsic metavolcanic rock 833CZve Carolina Slate Belt Carolina Slate Belt Metamorphic rocks Metamorphic Rocks Metavolcanic epi-clastic rock Proterozoic-PhanerozoicLater Proterozoic-PaleozoicLate Proterozoic-Cambriannone none 3 3.70850264706e+005 7.29364295846e+008Metamorphosed argillite, mudstone, volcanic sandstone, conglomerate, and volcanic rock 834ZYbn Blue Ridge Belt Blue Ridge Sedimentary and Metamorphic Rocks Sedimentary and Metamorphic RocksBiotite gneiss Proterozoic Middle-Late Proterozoic Middle-Late Proterozoic none none 8 8.52950018080e+005 1.56506826942e+009Migmatitic; interlayered and gradational with biotite-garnet gneiss and amphibolite; locally abundant quartz and alumino-silicates. Stratigraphic position uncertain 835CZfv Carolina Slate Belt Carolina Slate Belt Metamorphic rocks Metamorphic Rocks Felsic metavolcanic rock Proterozoic-PhanerozoicLater Proterozoic-PaleozoicLate Proterozoic-Cambriannone none 6 1.78891214147e+004 6.93184426520e+006Metamorphosed dacitic to rhyolitic flows and tuffs, light gray to greenish gray; interbedded with mafic and intermediate metavolcanic rock, meta-argillite, and metamudstone. CZfv2 - Cid Formation (southwest of Asheboro), CZfv1 - Uwharrie Formation (at Asheboro and to south) 836CZve Carolina Slate Belt Carolina Slate Belt Metamorphic rocks Metamorphic Rocks Metavolcanic epi-clastic rock Proterozoic-PhanerozoicLater Proterozoic-PaleozoicLate Proterozoic-Cambriannone none 3 8.26988065389e+003 2.62410289598e+006Metamorphosed argillite, mudstone, volcanic sandstone, conglomerate, and volcanic rock 837Zchs Blue Ridge Belt Blue Ridge Ocoee Supergroup Sedimentary and Metamorphic RocksSlate of Copper Hill Formation Proterozoic Late Proterozoic Late Proterozoic none none 29 8.53744747396e+003 1.64728507965e+006Slate to phyllite, dark gray, graphitic, sulfidic; includes metagraywacke with local graded bedding 838PzZg Charlotte and Milton Belts Charlotte Belt Intrusive Rocks Intrusive Rocks Metamorphosed gabbro and diorite Phanerozioc Paleozoic Permian none none 4 2.85927714012e+004 3.49485777820e+007Foliated to masive 839Zbt Kings Mountain Belt Kings Mountain Belt Metamorphic rocks Metamorphic Rocks Battleground Formation Proterozoic Late Proterozoic Late Proterozoic none none 1 5.09356483850e+004 4.98385758914e+007Quartz-sericite schist with metavolcanic rock, quartz-pebble metaconglomerate, kyanite-sillimanite quartzite, and garnet-quartz rock 840CZfv2Carolina Slate Belt Carolina Slate Belt Metamorphic rocks Metamorphic Rocks Cid Formation Proterozoic-PhanerozoicLater Proterozoic-PaleozoicLate Proterozoic-Cambriannone none 6 3.17817937271e+005 2.47700424399e+008Cid Formation (southwest of Asheboro) 841Tt Coastal Plain Coastal Plain Tertiary Sedimentary Rocks Terrace deposites and upland sediment Phanerozioc Cenozoic Tertiary none none 12 5.47005327373e+003 1.43574762952e+006Gravel, clayey sand, and sand, minor iron-oxide cemented sandstone 842PPg Eastern Slate Belt Eastern Slate Belt Intrusive Rocks Intrusive Rocks Granitic rock Phanerozioc Paleozoic Pennsylvanian-Permian 265-325 11,21,1,29 6 2.62198406561e+003 4.06199198628e+005Megacrystic to equigranular. Castalia, Lilington, Medoc Mountain, Sims, Contentnea Creek (?), and Elm City (?) intrusives 843CZba Inner Piedmont, Chauga Belt, Smith River Allochthon, and Sauratown MountainInner Piedmont Metamorphic rocks Metamorphic Rocks Megacrystic biotite gneiss Proterozoic-PhanerozoicLater Proterozoic-PaleozoicLate Proterozoic-Cambriannone none 11 2.07424081733e+004 6.29112675770e+006Poorly layered to massive; megacrysts of microcline and quartz; local mica schist, amphibolite, and biotite gneiss 844CZbf Kings Mountain Belt Kings Mountain Belt Metamorphic rocks Metamorphic Rocks Fine-grained biotite gneiss Proterozoic-PhanerozoicLater Proterozoic-PaleozoicLate Proterozoic-Cambriannone none 3 5.36260516205e+004 7.23162552194e+007Strongly foliated; minor layers of amphibolite and muscovite schist 845PPg Eastern Slate Belt Eastern Slate Belt Intrusive Rocks Intrusive Rocks Granitic rock Phanerozioc Paleozoic Pennsylvanian-Permian 265-325 11,21,1,29 6 1.05373920663e+004 4.81272839849e+006Megacrystic to equigranular. Castalia, Lilington, Medoc Mountain, Sims, Contentnea Creek (?), and Elm City (?) intrusives 846PPg Eastern Slate Belt Eastern Slate Belt Intrusive Rocks Intrusive Rocks Granitic rock Phanerozioc Paleozoic Pennsylvanian-Permian 265-325 11,21,1,29 6 2.93899137562e+004 1.61628880512e+007Megacrystic to equigranular. Castalia, Lilington, Medoc Mountain, Sims, Contentnea Creek (?), and Elm City (?) intrusives 847CZab Inner Piedmont, Chauga Belt, Smith River Allochthon, and Sauratown MountainInner Piedmont Metamorphic rocks Metamorphic Rocks Amphibolite and biotite gneiss Proterozoic-PhanerozoicLater Proterozoic-PaleozoicLate Proterozoic-Cambriannone none 13 2.64369483251e+004 2.05500974645e+007Interlayered; minor layers and lenses of hornblende gneiss, metagabbro, mica schist, and granitic rock 1848Tt Coastal Plain Coastal Plain Tertiary Sedimentary Rocks Terrace deposites and upland sediment Phanerozioc Cenozoic Tertiary none none 12 1.81366548372e+004 7.54129055714e+006Gravel, clayey sand, and sand, minor iron-oxide cemented sandstone 848Ymam Blue Ridge Belt Blue Ridge Metamorphic rocks Sedimentary and Metamorphic RocksAmphibolite Proterozoic Middle Proterozoic Middle Proterozoic none none 1 1.41763909519e+004 2.48653862536e+006Equigranular, massive to well foliated, interlayered, rarely discordant, metamorphosed intrusive and extrusive mafic rock; may include metasedimentary rock 849CZfv Carolina Slate Belt Carolina Slate Belt Metamorphic rocks Metamorphic Rocks Felsic metavolcanic rock Proterozoic-PhanerozoicLater Proterozoic-PaleozoicLate Proterozoic-Cambriannone none 6 5.43226972987e+003 1.30588822104e+006Metamorphosed dacitic to rhyolitic flows and tuffs, light gray to greenish gray; interbedded with mafic and intermediate metavolcanic rock, meta-argillite, and metamudstone. CZfv2 - Cid Formation (southwest of Asheboro), CZfv1 - Uwharrie Formation (at Asheboro and to south) 850OCg Inner Piedmont, Chauga Belt, Smith River Allochthon, and Sauratown MountainInner Piedmont Intrusive Rocks Intrusive Rocks Metamorphosed granitic rock Phanerozioc Paleozoic Cambrian-Ordovician 455-540 10 5 8.14876082856e+003 3.56223571162e+006Equigranular to megacrystic, foliated to massive. Includes Toluca Granite 851CZab Inner Piedmont, Chauga Belt, Smith River Allochthon, and Sauratown MountainInner Piedmont Metamorphic rocks Metamorphic Rocks Amphibolite and biotite gneiss Proterozoic-PhanerozoicLater Proterozoic-PaleozoicLate Proterozoic-Cambriannone none 13 1.69344677381e+005 8.18798471008e+007Interlayered; minor layers and lenses of hornblende gneiss, metagabbro, mica schist, and granitic rock 852Zgs Blue Ridge Belt Blue Ridge Ocoee Supergroup Sedimentary and Metamorphic RocksGreat Smoky Group, Undivided Proterozoic Late Proterozoic Late Proterozoic none none 34 1.85700884731e+004 1.58883597226e+007Thick metasedimentary sequence of massive to graded beds of metagraywacke and metasiltstone with interbedded graphitic and sulfidic slate and schist 853Tt Coastal Plain Coastal Plain Tertiary Sedimentary Rocks Terrace deposites and upland sediment Phanerozioc Cenozoic Tertiary none none 12 2.08443149965e+004 8.37479054656e+006Gravel, clayey sand, and sand, minor iron-oxide cemented sandstone 854CZmv Carolina Slate Belt Carolina Slate Belt Metamorphic rocks Metamorphic Rocks Mafic metavolcanic rock Proterozoic-PhanerozoicLater Proterozoic-PaleozoicLate Proterozoic-Cambriannone none 7 8.59305000785e+004 1.18300819434e+008Metamorphosed basaltic flows and tuffs, dark green to black; interbedded with felsic and intermediate metavolcanic rock and metamudstone. CZmv1 - Cid Formation (southwest of Asheboro) 855CZms Inner Piedmont, Chauga Belt, Smith River Allochthon, and Sauratown MountainInner Piedmont Metamorphic rocks Metamorphic Rocks Mica schist Proterozoic-PhanerozoicLater Proterozoic-PaleozoicLate Proterozoic-Cambriannone none 14 4.10504263004e+004 9.35660859568e+006Garnet, staurolite, kyanite, or sillimanite occur locally; lenses and layers of quartz schist, micaceous quartzite, calc-silicate rock, biotite gneiss, amphibolite, and phyllite 856OCg Inner Piedmont, Chauga Belt, Smith River Allochthon, and Sauratown MountainInner Piedmont Intrusive Rocks Intrusive Rocks Metamorphosed granitic rock Phanerozioc Paleozoic Cambrian-Ordovician 455-540 10 5 7.57040891325e+003 3.38098924398e+006Equigranular to megacrystic, foliated to massive. Includes Toluca Granite 857CZfv Carolina Slate Belt Carolina Slate Belt Metamorphic rocks Metamorphic Rocks Felsic metavolcanic rock Proterozoic-PhanerozoicLater Proterozoic-PaleozoicLate Proterozoic-Cambriannone none 6 1.74839993526e+004 6.86547936711e+006Metamorphosed dacitic to rhyolitic flows and tuffs, light gray to greenish gray; interbedded with mafic and intermediate metavolcanic rock, meta-argillite, and metamudstone. CZfv2 - Cid Formation (southwest of Asheboro), CZfv1 - Uwharrie Formation (at Asheboro and to south) 858PzZg Carolina Slate Belt Carolina Slate Belt Intrusive Rocks Intrusive Rocks Metamorphosed gabbro and diorite Phanerozioc Paleozoic Permian none none 4 1.49465941186e+004 6.30242487227e+006Foliated to masive 859CZfv Eastern Slate Belt Eastern Slate Belt Metamorphic rocks Metamorphic Rocks Felsic metavolcanic rock Proterozoic-PhanerozoicLater Proterozoic-PaleozoicLate Proterozoic-Cambriannone none 6 1.72526910663e+004 7.72223989679e+006Metamorphosed dacitic to rhyolitic flows and tuffs, light gray to greenish gray; interbedded with mafic and intermediate metavolcanic rock, meta-argillite, and metamudstone 860CZmd Carolina Slate Belt Carolina Slate Belt Metamorphic rocks Metamorphic Rocks Metamudstone and meta-argillite Proterozoic-PhanerozoicLater Proterozoic-PaleozoicLate Proterozoic-Cambriannone none 8 8.13080886356e+003 1.45875131238e+006Thin to thick bedded; bedding plane and axial-planar cleavage common; interbedded with metasandstone, metaconglomerate, and metavolcanic rock. CZmd3 - Floyd Church Formation, CZmd2 - Cid Formation, CZmd1 - Tillery Formation: (southwest of Asheboro) 861PPmg Kings Mountain Belt Kings Mountain Belt Intrusive Rocks Intrusive Rocks Foliated to massive granitic rock Phanerozioc Paleozoic Pennsylvanian-Permian 270-230 18,19 3 6.34931124166e+003 2.07595915260e+006Megacrystic to equigranular. High Shoals Granite 862CZam Raleigh Belt Raleigh Belt Intrusive Rocks Intrusive Rocks Amphibolite Proterozoic-PhanerozoicLater Proterozoic-PaleozoicLate Proterozoic-Cambriannone none 7 1.48885046843e+004 7.49826059877e+006Metamorphosed mafic extrusive and intrusive rock; includes hornblende gneiss, thin layers of mica schist, and small nonlayered masses of metadiorite and metagabbro 863Tt Coastal Plain Coastal Plain Tertiary Sedimentary Rocks Terrace deposites and upland sediment Phanerozioc Cenozoic Tertiary none none 12 2.91553624628e+003 6.38348210546e+005Gravel, clayey sand, and sand, minor iron-oxide cemented sandstone 864PzZu Inner Piedmont, Chauga Belt, Smith River Allochthon, and Sauratown MountainInner Piedmont Intrusive Rocks Intrusive Rocks Meta-ultramafic rock Phanerozioc Paleozoic Permian none none 2 1.22957302031e+004 4.83569741669e+006Metamorphosed dunite, local peridotite; serpentinite, soapstone, and other altered ultramafic rock. Only larger bodies shown 865Zbt Kings Mountain Belt Kings Mountain Belt Metamorphic rocks Metamorphic Rocks Battleground Formation Proterozoic Late Proterozoic Late Proterozoic none none 1 4.85268723242e+004 3.67181110270e+007Quartz-sericite schist with metavolcanic rock, quartz-pebble metaconglomerate, kyanite-sillimanite quartzite, and garnet-quartz rock 866CZc Carolina Slate Belt Carolina Slate Belt Metamorphic rocks Metamorphic Rocks Volcanic metaconglomerate Proterozoic-PhanerozoicLater Proterozoic-PaleozoicLate Proterozoic-Cambriannone none 2 1.76450887915e+004 5.56542898061e+006Includes metagraywacke and metamudstone 867Ymam Blue Ridge Belt Blue Ridge Metamorphic rocks Sedimentary and Metamorphic RocksAmphibolite Proterozoic Middle Proterozoic Middle Proterozoic none none 1 7.88892724177e+003 1.32797740715e+006Equigranular, massive to well foliated, interlayered, rarely discordant, metamorphosed intrusive and extrusive mafic rock; may include metasedimentary rock 868CZba Inner Piedmont, Chauga Belt, Smith River Allochthon, and Sauratown MountainInner Piedmont Metamorphic rocks Metamorphic Rocks Megacrystic biotite gneiss Proterozoic-PhanerozoicLater Proterozoic-PaleozoicLate Proterozoic-Cambriannone none 11 6.06871186265e+004 2.29314035117e+007Poorly layered to massive; megacrysts of microcline and quartz; local mica schist, amphibolite, and biotite gneiss 869Tt Coastal Plain Coastal Plain Tertiary Sedimentary Rocks Terrace deposites and upland sediment Phanerozioc Cenozoic Tertiary none none 12 1.00874670127e+004 4.09231912080e+006Gravel, clayey sand, and sand, minor iron-oxide cemented sandstone 870CZve Carolina Slate Belt Carolina Slate Belt Metamorphic rocks Metamorphic Rocks Metavolcanic epi-clastic rock Proterozoic-PhanerozoicLater Proterozoic-PaleozoicLate Proterozoic-Cambriannone none 3 4.64692070455e+004 2.67573087186e+007Metamorphosed argillite, mudstone, volcanic sandstone, conglomerate, and volcanic rock 871CZmd Carolina Slate Belt Carolina Slate Belt Metamorphic rocks Metamorphic Rocks Metamudstone and meta-argillite Proterozoic-PhanerozoicLater Proterozoic-PaleozoicLate Proterozoic-Cambriannone none 8 2.24561205870e+004 8.28407303867e+006Thin to thick bedded; bedding plane and axial-planar cleavage common; interbedded with metasandstone, metaconglomerate, and metavolcanic rock. CZmd3 - Floyd Church Formation, CZmd2 - Cid Formation, CZmd1 - Tillery Formation: (southwest of Asheboro) 872PzZu Blue Ridge Belt Blue Ridge Intrusive Rocks Intrusive Rocks Meta-ultramafic rock Phanerozioc Paleozoic Permian none none 5 2.68396584939e+003 4.18791344572e+005Metamorphosed dunite, local peridotite; serpentinite, soapstone, and other altered ultramafic rock. Only larger bodies shown 873Zsw Blue Ridge Belt Blue Ridge Snowbird Group Sedimentary and Metamorphic RocksWading Branch Formation Proterozoic Late Proterozoic Late Proterozoic none none 20 1.66862194901e+004 2.39845441048e+006Sandy slate to coarse-grained pebbly metagraywacke with local graded bedding. Basal quartz-sericite schist or phyllite 874CZbg Raleigh Belt Raleigh Belt Metamorphic rocks Metamorphic Rocks Biotite gneiss and schist Proterozoic-PhanerozoicLater Proterozoic-PaleozoicLate Proterozoic-Cambriannone none 6 1.64342197237e+005 1.35370975128e+008Inequigranular and megacrystic; in places contains garnet; interlayered and gradational with mica schist and amphibolite; includes small masses of granitic rock 875PPg Eastern Slate Belt Eastern Slate Belt Intrusive Rocks Intrusive Rocks Granitic rock Phanerozioc Paleozoic Pennsylvanian-Permian 265-325 11,21,1,29 6 9.67923709664e+003 2.96792342259e+006Megacrystic to equigranular. Castalia, Lilington, Medoc Mountain, Sims, Contentnea Creek (?), and Elm City (?) intrusives 876Za Blue Ridge Belt Blue Ridge Ocoee Supergroup Sedimentary and Metamorphic RocksAnakeesta Formation Proterozoic Late Proterozoic Late Proterozoic none none 27 3.04908851808e+004 1.79631100381e+007Slate to schist, dark gray, graphitic and sulfidic; includes interbedded argillaceous, feldspathic metagraywacke 877CZms Inner Piedmont, Chauga Belt, Smith River Allochthon, and Sauratown MountainInner Piedmont Metamorphic rocks Metamorphic Rocks Mica schist Proterozoic-PhanerozoicLater Proterozoic-PaleozoicLate Proterozoic-Cambriannone none 14 1.33779078002e+004 2.23958680442e+006Garnet, staurolite, kyanite, or sillimanite occur locally; lenses and layers of quartz schist, micaceous quartzite, calc-silicate rock, biotite gneiss, amphibolite, and phyllite 878Ymam Blue Ridge Belt Blue Ridge Metamorphic rocks Sedimentary and Metamorphic RocksAmphibolite Proterozoic Middle Proterozoic Middle Proterozoic none none 1 3.09696302702e+003 3.06452339028e+005Equigranular, massive to well foliated, interlayered, rarely discordant, metamorphosed intrusive and extrusive mafic rock; may include metasedimentary rock 879Tt Coastal Plain Coastal Plain Tertiary Sedimentary Rocks Terrace deposites and upland sediment Phanerozioc Cenozoic Tertiary none none 12 1.96644830677e+003 2.82837369475e+005Gravel, clayey sand, and sand, minor iron-oxide cemented sandstone 880OCg Inner Piedmont, Chauga Belt, Smith River Allochthon, and Sauratown MountainInner Piedmont Intrusive Rocks Intrusive Rocks Metamorphosed granitic rock Phanerozioc Paleozoic Cambrian-Ordovician 455-540 10 5 2.60321127038e+004 1.11845563304e+007Equigranular to megacrystic, foliated to massive. Includes Toluca Granite 881CZiv Carolina Slate Belt Carolina Slate Belt Metamorphic rocks Metamorphic Rocks Intermediate metavolcanic rock Proterozoic-PhanerozoicLater Proterozoic-PaleozoicLate Proterozoic-Cambriannone none 5 1.67811062079e+004 8.43188865218e+006Metamorphosed andesitic tuffs and flows, medium to dark grayish green; minor felsic and mafic metavolcanic rock 882CZbg Inner Piedmont, Chauga Belt, Smith River Allochthon, and Sauratown MountainInner Piedmont Metamorphic rocks Metamorphic Rocks Biotite gneiss and schist Proterozoic-PhanerozoicLater Proterozoic-PaleozoicLate Proterozoic-Cambriannone none 16 2.34010853005e+004 8.08565047866e+006Inequigranular, locally abundant potassic feldspar and garnet; interlayered and gradational with calc-silicate rock, sillimanite-mica schist, and amphibolite. Contains small masses of granitic rock 883PzZu Inner Piedmont, Chauga Belt, Smith River Allochthon, and Sauratown MountainInner Piedmont Intrusive Rocks Intrusive Rocks Meta-ultramafic rock Phanerozioc Paleozoic Permian none none 2 3.85232552424e+003 9.04280810435e+005Metamorphosed dunite, local peridotite; serpentinite, soapstone, and other altered ultramafic rock. Only larger bodies shown 884CZpg Inner Piedmont, Chauga Belt, Smith River Allochthon, and Sauratown MountainInner Piedmont Metamorphic rocks Metamorphic Rocks Inequigranular biotite gneiss Proterozoic-PhanerozoicLater Proterozoic-PaleozoicLate Proterozoic-Cambriannone none 4 8.90861033918e+004 4.82122858956e+007Weakly foliated to massive, contains plagioclase megacrysts and, rarely, larger megacrysts of quartz and feldspar 885CZbg Inner Piedmont, Chauga Belt, Smith River Allochthon, and Sauratown MountainInner Piedmont Metamorphic rocks Metamorphic Rocks Biotite gneiss and schist Proterozoic-PhanerozoicLater Proterozoic-PaleozoicLate Proterozoic-Cambriannone none 16 2.56729825476e+004 2.03705464833e+007Inequigranular, locally abundant potassic feldspar and garnet; interlayered and gradational with calc-silicate rock, sillimanite-mica schist, and amphibolite. Contains small masses of granitic rock 886Qp Coastal Plain Coastal Plain Quaternary Surficial deposits Surficial deposits, undivided Phanerozioc Cenozoic Quaternary none none 14 2.08428567909e+003 2.32385913163e+005Sand, clay, gravel, and peat deposited in marine, fluvial, eolian, and lacustrine environments. Quaternary deposits not shown at altitudes greater than approximately 25 feet above mean sea level (Suffolk Scarp, in part) 887PPg Charlotte and Milton Belts Charlotte Belt Intrusive Rocks Intrusive Rocks Granitic rock Phanerozioc Paleozoic Pennsylvanian-Permian 265-325 11 11 9.13123997518e+004 1.75943202570e+008Megacrystic to equigranular. Churchland Plutonic Suite (Western group) - Churchland, Landis, and Mooresville intrusives 888CZve Carolina Slate Belt Carolina Slate Belt Metamorphic rocks Metamorphic Rocks Metavolcanic epi-clastic rock Proterozoic-PhanerozoicLater Proterozoic-PaleozoicLate Proterozoic-Cambriannone none 3 5.60986648856e+003 1.51129317889e+006Metamorphosed argillite, mudstone, volcanic sandstone, conglomerate, and volcanic rock 889CZmd Carolina Slate Belt Carolina Slate Belt Metamorphic rocks Metamorphic Rocks Metamudstone and meta-argillite Proterozoic-PhanerozoicLater Proterozoic-PaleozoicLate Proterozoic-Cambriannone none 8 4.34866008234e+003 1.06605401537e+006Thin to thick bedded; bedding plane and axial-planar cleavage common; interbedded with metasandstone, metaconglomerate, and metavolcanic rock. CZmd3 - Floyd Church Formation, CZmd2 - Cid Formation, CZmd1 - Tillery Formation: (southwest of Asheboro) 890Kb Coastal Plain Coastal Plain Cretaceous Sedimentary Rocks Black Creek Formation Phanerozioc Mesozoic Cretaceous none none 3 3.46692091253e+004 1.96226010558e+007Clay, gray to black, lignitic; contains thin beds and laminae of fine-grained micaceous sand and thick lenses of cross-bedded sand. Glauconitic, fossiliferous clayey sand lenses in upper part 891PzZu Inner Piedmont, Chauga Belt, Smith River Allochthon, and Sauratown MountainInner Piedmont Intrusive Rocks Intrusive Rocks Meta-ultramafic rock Phanerozioc Paleozoic Permian none none 2 2.02463730085e+003 2.29972216356e+005Metamorphosed dunite, local peridotite; serpentinite, soapstone, and other altered ultramafic rock. Only larger bodies shown 892CZbg Raleigh Belt Raleigh Belt Metamorphic rocks Metamorphic Rocks Biotite gneiss and schist Proterozoic-PhanerozoicLater Proterozoic-PaleozoicLate Proterozoic-Cambriannone none 6 9.65928531885e+003 2.74380818763e+006Inequigranular and megacrystic; in places contains garnet; interlayered and gradational with mica schist and amphibolite; includes small masses of granitic rock 893Tt Coastal Plain Coastal Plain Tertiary Sedimentary Rocks Terrace deposites and upland sediment Phanerozioc Cenozoic Tertiary none none 12 5.38578771935e+003 1.43808063761e+006Gravel, clayey sand, and sand, minor iron-oxide cemented sandstone 894Zsr Blue Ridge Belt Blue Ridge Snowbird Group Sedimentary and Metamorphic RocksRoaring Fork Sandstone Proterozoic Late Proterozoic Late Proterozoic none none 22 9.65241966819e+003 2.40333230323e+006Greenish gray, fine to medium grained, locally cross-bedded, metamorphosed; interbedded metasiltstone and phyllite 895OCg Inner Piedmont, Chauga Belt, Smith River Allochthon, and Sauratown MountainInner Piedmont Intrusive Rocks Intrusive Rocks Metamorphosed granitic rock Phanerozioc Paleozoic Cambrian-Ordovician 455-540 10 5 1.98973167851e+004 1.15610035199e+007Equigranular to megacrystic, foliated to massive. Includes Toluca Granite 896OCg Inner Piedmont, Chauga Belt, Smith River Allochthon, and Sauratown MountainInner Piedmont Intrusive Rocks Intrusive Rocks Metamorphosed granitic rock Phanerozioc Paleozoic Cambrian-Ordovician 455-540 10 5 2.47714123947e+004 1.18625616409e+007Equigranular to megacrystic, foliated to massive. Includes Toluca Granite 897CZmd3Carolina Slate Belt Carolina Slate Belt Metamorphic rocks Metamorphic Rocks Floyd Church Formation Proterozoic-PhanerozoicLater Proterozoic-PaleozoicLate Proterozoic-Cambriannone none 8 5.57596848670e+004 7.29345194362e+007Floyd Church Formation (southwest of Asheboro) 898OCg Inner Piedmont, Chauga Belt, Smith River Allochthon, and Sauratown MountainInner Piedmont Intrusive Rocks Intrusive Rocks Metamorphosed granitic rock Phanerozioc Paleozoic Cambrian-Ordovician 455-540 10 5 1.64838666583e+004 6.28149981111e+006Equigranular to megacrystic, foliated to massive. Includes Toluca Granite 899PPmg Kings Mountain Belt Kings Mountain Belt Intrusive Rocks Intrusive Rocks Foliated to massive granitic rock Phanerozioc Paleozoic Pennsylvanian-Permian 270-230 18,19 3 1.60306322357e+004 1.38035631694e+007Megacrystic to equigranular. High Shoals Granite 900Tt Coastal Plain Coastal Plain Tertiary Sedimentary Rocks Terrace deposites and upland sediment Phanerozioc Cenozoic Tertiary none none 12 3.50064784910e+004 1.65398371265e+007Gravel, clayey sand, and sand, minor iron-oxide cemented sandstone 901Tt Coastal Plain Coastal Plain Tertiary Sedimentary Rocks Terrace deposites and upland sediment Phanerozioc Cenozoic Tertiary none none 12 2.41729158677e+003 3.98440758700e+005Gravel, clayey sand, and sand, minor iron-oxide cemented sandstone 902Qp Coastal Plain Coastal Plain Quaternary Surficial deposits Surficial deposits, undivided Phanerozioc Cenozoic Quaternary none none 14 2.03055650229e+003 1.91360680956e+005Sand, clay, gravel, and peat deposited in marine, fluvial, eolian, and lacustrine environments. Quaternary deposits not shown at altitudes greater than approximately 25 feet above mean sea level (Suffolk Scarp, in part) 903Zsr Blue Ridge Belt Blue Ridge Snowbird Group Sedimentary and Metamorphic RocksRoaring Fork Sandstone Proterozoic Late Proterozoic Late Proterozoic none none 22 2.33369676100e+004 1.17781320440e+007Greenish gray, fine to medium grained, locally cross-bedded, metamorphosed; interbedded metasiltstone and phyllite 1849Tt Coastal Plain Coastal Plain Tertiary Sedimentary Rocks Terrace deposites and upland sediment Phanerozioc Cenozoic Tertiary none none 12 9.48678430492e+003 3.13162106677e+006Gravel, clayey sand, and sand, minor iron-oxide cemented sandstone 904Ybgg Blue Ridge Belt Blue Ridge Sedimentary and Metamorphic Rocks Sedimentary and Metamorphic RocksBiotite granitic gneiss Proterozoic Middle Proterozoic Middle Proterozoic none none 4 2.66449661289e+005 2.00630766744e+008Pinkish gray to light gray, massive to well foliated, granitic to quartz monzonitic; includes variably mylonitized orthogneiss and paragneiss, interlayered amphibolite, calc-silicate rock, and marble. Includes granites of Bryson City area, Straight Fork window, and Elk Park Plutonic Suite 905DOgb Charlotte and Milton Belts Charlotte Belt Intrusive Rocks Intrusive Rocks Gabbro of Concord Plutonic Suite Phanerozioc Paleozoic Ordovician-Devonian 399-479 24 8 2.78079408418e+004 2.59870390114e+007Barber, Concord, Farmington, Mecklenburg, and Weddington intrusives 906PPmg Kings Mountain Belt Kings Mountain Belt Intrusive Rocks Intrusive Rocks Foliated to massive granitic rock Phanerozioc Paleozoic Pennsylvanian-Permian 270-230 18,19 3 6.88850878660e+003 2.64914219382e+006Megacrystic to equigranular. High Shoals Granite 907OCg Inner Piedmont, Chauga Belt, Smith River Allochthon, and Sauratown MountainInner Piedmont Intrusive Rocks Intrusive Rocks Metamorphosed granitic rock Phanerozioc Paleozoic Cambrian-Ordovician 455-540 10 5 1.39454843238e+004 6.50520933345e+006Equigranular to megacrystic, foliated to massive. Includes Toluca Granite 908Qp Coastal Plain Coastal Plain Quaternary Surficial deposits Surficial deposits, undivided Phanerozioc Cenozoic Quaternary none none 14 1.32803368222e+003 1.04385114644e+005Sand, clay, gravel, and peat deposited in marine, fluvial, eolian, and lacustrine environments. Quaternary deposits not shown at altitudes greater than approximately 25 feet above mean sea level (Suffolk Scarp, in part) 909Tt Coastal Plain Coastal Plain Tertiary Sedimentary Rocks Terrace deposites and upland sediment Phanerozioc Cenozoic Tertiary none none 12 1.24421892669e+005 1.24304326806e+008Gravel, clayey sand, and sand, minor iron-oxide cemented sandstone 910CZbg Raleigh Belt Raleigh Belt Metamorphic rocks Metamorphic Rocks Biotite gneiss and schist Proterozoic-PhanerozoicLater Proterozoic-PaleozoicLate Proterozoic-Cambriannone none 6 2.78678933527e+004 1.63889504181e+007Inequigranular and megacrystic; in places contains garnet; interlayered and gradational with mica schist and amphibolite; includes small masses of granitic rock 911PPg Eastern Slate Belt Eastern Slate Belt Intrusive Rocks Intrusive Rocks Granitic rock Phanerozioc Paleozoic Pennsylvanian-Permian 265-325 11,21,1,29 6 2.70050820174e+004 1.94107514270e+007Megacrystic to equigranular. Castalia, Lilington, Medoc Mountain, Sims, Contentnea Creek (?), and Elm City (?) intrusives 912PzZu Inner Piedmont, Chauga Belt, Smith River Allochthon, and Sauratown MountainInner Piedmont Intrusive Rocks Intrusive Rocks Meta-ultramafic rock Phanerozioc Paleozoic Permian none none 2 2.85946721767e+003 4.31218102525e+005Metamorphosed dunite, local peridotite; serpentinite, soapstone, and other altered ultramafic rock. Only larger bodies shown 913Zsw Blue Ridge Belt Blue Ridge Snowbird Group Sedimentary and Metamorphic RocksWading Branch Formation Proterozoic Late Proterozoic Late Proterozoic none none 20 1.20724261967e+004 3.15535188300e+006Sandy slate to coarse-grained pebbly metagraywacke with local graded bedding. Basal quartz-sericite schist or phyllite 914Tt Coastal Plain Coastal Plain Tertiary Sedimentary Rocks Terrace deposites and upland sediment Phanerozioc Cenozoic Tertiary none none 12 3.58318134999e+003 9.57736247931e+005Gravel, clayey sand, and sand, minor iron-oxide cemented sandstone 915PzZu Inner Piedmont, Chauga Belt, Smith River Allochthon, and Sauratown MountainInner Piedmont Intrusive Rocks Intrusive Rocks Meta-ultramafic rock Phanerozioc Paleozoic Permian none none 2 2.93311259917e+003 4.28990096173e+005Metamorphosed dunite, local peridotite; serpentinite, soapstone, and other altered ultramafic rock. Only larger bodies shown 916CZmd Carolina Slate Belt Carolina Slate Belt Metamorphic rocks Metamorphic Rocks Metamudstone and meta-argillite Proterozoic-PhanerozoicLater Proterozoic-PaleozoicLate Proterozoic-Cambriannone none 8 1.05450901672e+004 4.11973800187e+006Thin to thick bedded; bedding plane and axial-planar cleavage common; interbedded with metasandstone, metaconglomerate, and metavolcanic rock. CZmd3 - Floyd Church Formation, CZmd2 - Cid Formation, CZmd1 - Tillery Formation: (southwest of Asheboro) 917Zsl Blue Ridge Belt Blue Ridge Snowbird Group Sedimentary and Metamorphic RocksLongarm Quartzite Proterozoic Late Proterozoic Late Proterozoic none none 21 1.51311121833e+004 2.36048707381e+006Cross-bedded, feldspathic, locally conglomeratic; includes dark slate and metasiltstone 918Qp Coastal Plain Coastal Plain Quaternary Surficial deposits Surficial deposits, undivided Phanerozioc Cenozoic Quaternary none none 14 1.41779633048e+003 1.20428687916e+005Sand, clay, gravel, and peat deposited in marine, fluvial, eolian, and lacustrine environments. Quaternary deposits not shown at altitudes greater than approximately 25 feet above mean sea level (Suffolk Scarp, in part) 919DSg Charlotte and Milton Belts Charlotte Belt Intrusive Rocks Intrusive Rocks Granite of Salisbury Plutonic Suite Phanerozioc Paleozoic Silurian-Devonian 385-415 5 10 1.06919794359e+004 4.19482935253e+006Pink, massive to weakly foliated. Gold Hill, Kannapolis, Salisbury, Southmont, and Yadkin intrusives 920CZab Inner Piedmont, Chauga Belt, Smith River Allochthon, and Sauratown MountainInner Piedmont Metamorphic rocks Metamorphic Rocks Amphibolite and biotite gneiss Proterozoic-PhanerozoicLater Proterozoic-PaleozoicLate Proterozoic-Cambriannone none 13 2.50657515086e+004 1.09928637768e+007Interlayered; minor layers and lenses of hornblende gneiss, metagabbro, mica schist, and granitic rock 921Km Coastal Plain Coastal Plain Cretaceous Sedimentary Rocks Middendorf Formation Phanerozioc Mesozoic Cretaceous none none 2 4.81394640736e+004 2.01717137467e+007Sand, sandstone, and mudstone, gray to pale gray with an orange cast, mottled; clay balls and iron-cemented concretions common, beds laterally discontinous, cross-bedding common 922Qp Coastal Plain Coastal Plain Quaternary Surficial deposits Surficial deposits, undivided Phanerozioc Cenozoic Quaternary none none 14 1.56538141509e+003 1.18788374669e+005Sand, clay, gravel, and peat deposited in marine, fluvial, eolian, and lacustrine environments. Quaternary deposits not shown at altitudes greater than approximately 25 feet above mean sea level (Suffolk Scarp, in part) 923Tt Coastal Plain Coastal Plain Tertiary Sedimentary Rocks Terrace deposites and upland sediment Phanerozioc Cenozoic Tertiary none none 12 6.00869212388e+003 1.59587597538e+006Gravel, clayey sand, and sand, minor iron-oxide cemented sandstone 924PzZg Carolina Slate Belt Carolina Slate Belt Intrusive Rocks Intrusive Rocks Metamorphosed gabbro and diorite Phanerozioc Paleozoic Permian none none 4 3.51110415323e+003 7.69459592887e+005Foliated to masive 925CZmd Carolina Slate Belt Carolina Slate Belt Metamorphic rocks Metamorphic Rocks Metamudstone and meta-argillite Proterozoic-PhanerozoicLater Proterozoic-PaleozoicLate Proterozoic-Cambriannone none 8 1.95115042834e+004 1.31230359712e+007Thin to thick bedded; bedding plane and axial-planar cleavage common; interbedded with metasandstone, metaconglomerate, and metavolcanic rock. CZmd3 - Floyd Church Formation, CZmd2 - Cid Formation, CZmd1 - Tillery Formation: (southwest of Asheboro) 926CZmv Carolina Slate Belt Carolina Slate Belt Metamorphic rocks Metamorphic Rocks Mafic metavolcanic rock Proterozoic-PhanerozoicLater Proterozoic-PaleozoicLate Proterozoic-Cambriannone none 7 3.15344347096e+004 1.25413678080e+007Metamorphosed basaltic flows and tuffs, dark green to black; interbedded with felsic and intermediate metavolcanic rock and metamudstone. CZmv1 - Cid Formation (southwest of Asheboro) 927CZmv Carolina Slate Belt Carolina Slate Belt Metamorphic rocks Metamorphic Rocks Mafic metavolcanic rock Proterozoic-PhanerozoicLater Proterozoic-PaleozoicLate Proterozoic-Cambriannone none 7 2.20472057624e+004 2.11628906783e+007Metamorphosed basaltic flows and tuffs, dark green to black; interbedded with felsic and intermediate metavolcanic rock and metamudstone. CZmv1 - Cid Formation (southwest of Asheboro) 928Zsl Blue Ridge Belt Blue Ridge Snowbird Group Sedimentary and Metamorphic RocksLongarm Quartzite Proterozoic Late Proterozoic Late Proterozoic none none 21 1.63018659793e+004 6.80718836261e+006Cross-bedded, feldspathic, locally conglomeratic; includes dark slate and metasiltstone 929Zchs Blue Ridge Belt Blue Ridge Ocoee Supergroup Sedimentary and Metamorphic RocksSlate of Copper Hill Formation Proterozoic Late Proterozoic Late Proterozoic none none 29 1.91004272945e+004 3.62014800227e+006Slate to phyllite, dark gray, graphitic, sulfidic; includes metagraywacke with local graded bedding 930CZiv Carolina Slate Belt Carolina Slate Belt Metamorphic rocks Metamorphic Rocks Intermediate metavolcanic rock Proterozoic-PhanerozoicLater Proterozoic-PaleozoicLate Proterozoic-Cambriannone none 5 2.12868699874e+004 6.16310615799e+006Metamorphosed andesitic tuffs and flows, medium to dark grayish green; minor felsic and mafic metavolcanic rock 931Tt Coastal Plain Coastal Plain Tertiary Sedimentary Rocks Terrace deposites and upland sediment Phanerozioc Cenozoic Tertiary none none 12 6.93451078300e+003 1.68366796294e+006Gravel, clayey sand, and sand, minor iron-oxide cemented sandstone 932CZfv Carolina Slate Belt Carolina Slate Belt Metamorphic rocks Metamorphic Rocks Felsic metavolcanic rock Proterozoic-PhanerozoicLater Proterozoic-PaleozoicLate Proterozoic-Cambriannone none 6 1.22147617283e+004 5.61901026631e+006Metamorphosed dacitic to rhyolitic flows and tuffs, light gray to greenish gray; interbedded with mafic and intermediate metavolcanic rock, meta-argillite, and metamudstone. CZfv2 - Cid Formation (southwest of Asheboro), CZfv1 - Uwharrie Formation (at Asheboro and to south) 933Ymam Blue Ridge Belt Blue Ridge Metamorphic rocks Sedimentary and Metamorphic RocksAmphibolite Proterozoic Middle Proterozoic Middle Proterozoic none none 1 8.33329216968e+003 1.96998555884e+006Equigranular, massive to well foliated, interlayered, rarely discordant, metamorphosed intrusive and extrusive mafic rock; may include metasedimentary rock 934PzZu Inner Piedmont, Chauga Belt, Smith River Allochthon, and Sauratown MountainInner Piedmont Intrusive Rocks Intrusive Rocks Meta-ultramafic rock Phanerozioc Paleozoic Permian none none 2 1.82033056652e+003 2.29509444522e+005Metamorphosed dunite, local peridotite; serpentinite, soapstone, and other altered ultramafic rock. Only larger bodies shown 935PzZu Blue Ridge Belt Blue Ridge Intrusive Rocks Intrusive Rocks Meta-ultramafic rock Phanerozioc Paleozoic Permian none none 5 2.14736779562e+003 3.11506629511e+005Metamorphosed dunite, local peridotite; serpentinite, soapstone, and other altered ultramafic rock. Only larger bodies shown 936CZms Inner Piedmont, Chauga Belt, Smith River Allochthon, and Sauratown MountainInner Piedmont Metamorphic rocks Metamorphic Rocks Mica schist Proterozoic-PhanerozoicLater Proterozoic-PaleozoicLate Proterozoic-Cambriannone none 14 2.90792691643e+005 2.98695573624e+008Garnet, staurolite, kyanite, or sillimanite occur locally; lenses and layers of quartz schist, micaceous quartzite, calc-silicate rock, biotite gneiss, amphibolite, and phyllite 937CZq Charlotte and Milton Belts Charlotte Belt Metamorphic rocks Metamorphic Rocks Quartzite Proterozoic-PhanerozoicLater Proterozoic-PaleozoicLate Proterozoic-Cambriannone none 10 4.04787081560e+003 9.08932901839e+005Massive to well foliated; contains andalusite, kyanite, or sillimanite, chloritoid, and pyrite 1850PzZu Inner Piedmont, Chauga Belt, Smith River Allochthon, and Sauratown MountainInner Piedmont Intrusive Rocks Intrusive Rocks Meta-ultramafic rock Phanerozioc Paleozoic Permian none none 2 4.52636864271e+003 1.11953676615e+006Metamorphosed dunite, local peridotite; serpentinite, soapstone, and other altered ultramafic rock. Only larger bodies shown 938PzZu Blue Ridge Belt Blue Ridge Intrusive Rocks Intrusive Rocks Meta-ultramafic rock Phanerozioc Paleozoic Permian none none 5 1.39452271283e+003 9.62511318774e+004Metamorphosed dunite, local peridotite; serpentinite, soapstone, and other altered ultramafic rock. Only larger bodies shown 940PzZg Carolina Slate Belt Carolina Slate Belt Intrusive Rocks Intrusive Rocks Metamorphosed gabbro and diorite Phanerozioc Paleozoic Permian none none 4 6.25309346540e+003 2.60287672508e+006Foliated to masive 941Tt Coastal Plain Coastal Plain Tertiary Sedimentary Rocks Terrace deposites and upland sediment Phanerozioc Cenozoic Tertiary none none 12 2.33956067717e+004 6.38853432143e+006Gravel, clayey sand, and sand, minor iron-oxide cemented sandstone 942CZfv Carolina Slate Belt Carolina Slate Belt Metamorphic rocks Metamorphic Rocks Felsic metavolcanic rock Proterozoic-PhanerozoicLater Proterozoic-PaleozoicLate Proterozoic-Cambriannone none 6 7.91227672734e+003 2.72386535962e+006Metamorphosed dacitic to rhyolitic flows and tuffs, light gray to greenish gray; interbedded with mafic and intermediate metavolcanic rock, meta-argillite, and metamudstone. CZfv2 - Cid Formation (southwest of Asheboro), CZfv1 - Uwharrie Formation (at Asheboro and to south) 943CZq Charlotte and Milton Belts Charlotte Belt Metamorphic rocks Metamorphic Rocks Quartzite Proterozoic-PhanerozoicLater Proterozoic-PaleozoicLate Proterozoic-Cambriannone none 10 3.63278236919e+003 8.62519133954e+005Massive to well foliated; contains andalusite, kyanite, or sillimanite, chloritoid, and pyrite 944CZbg Inner Piedmont, Chauga Belt, Smith River Allochthon, and Sauratown MountainInner Piedmont Metamorphic rocks Metamorphic Rocks Biotite gneiss and schist Proterozoic-PhanerozoicLater Proterozoic-PaleozoicLate Proterozoic-Cambriannone none 16 1.04178923807e+005 1.06117010526e+008Inequigranular, locally abundant potassic feldspar and garnet; interlayered and gradational with calc-silicate rock, sillimanite-mica schist, and amphibolite. Contains small masses of granitic rock 945CZbg Raleigh Belt Raleigh Belt Metamorphic rocks Metamorphic Rocks Biotite gneiss and schist Proterozoic-PhanerozoicLater Proterozoic-PaleozoicLate Proterozoic-Cambriannone none 6 2.89284762681e+004 1.07623508560e+007Inequigranular and megacrystic; in places contains garnet; interlayered and gradational with mica schist and amphibolite; includes small masses of granitic rock 946CZam Raleigh Belt Raleigh Belt Intrusive Rocks Intrusive Rocks Amphibolite Proterozoic-PhanerozoicLater Proterozoic-PaleozoicLate Proterozoic-Cambriannone none 7 3.59725676033e+004 1.81123071315e+007Metamorphosed mafic extrusive and intrusive rock; includes hornblende gneiss, thin layers of mica schist, and small nonlayered masses of metadiorite and metagabbro 947Tt Coastal Plain Coastal Plain Tertiary Sedimentary Rocks Terrace deposites and upland sediment Phanerozioc Cenozoic Tertiary none none 12 1.06396781485e+004 3.62789077058e+006Gravel, clayey sand, and sand, minor iron-oxide cemented sandstone 948CZam Raleigh Belt Raleigh Belt Intrusive Rocks Intrusive Rocks Amphibolite Proterozoic-PhanerozoicLater Proterozoic-PaleozoicLate Proterozoic-Cambriannone none 7 6.92496844450e+003 2.09599514200e+006Metamorphosed mafic extrusive and intrusive rock; includes hornblende gneiss, thin layers of mica schist, and small nonlayered masses of metadiorite and metagabbro 949CZve Carolina Slate Belt Carolina Slate Belt Metamorphic rocks Metamorphic Rocks Metavolcanic epi-clastic rock Proterozoic-PhanerozoicLater Proterozoic-PaleozoicLate Proterozoic-Cambriannone none 3 1.11195109816e+004 4.83735170677e+006Metamorphosed argillite, mudstone, volcanic sandstone, conglomerate, and volcanic rock 950Zchs Blue Ridge Belt Blue Ridge Ocoee Supergroup Sedimentary and Metamorphic RocksSlate of Copper Hill Formation Proterozoic Late Proterozoic Late Proterozoic none none 29 9.09941216269e+003 1.76174121858e+006Slate to phyllite, dark gray, graphitic, sulfidic; includes metagraywacke with local graded bedding 951CZiv Carolina Slate Belt Carolina Slate Belt Metamorphic rocks Metamorphic Rocks Intermediate metavolcanic rock Proterozoic-PhanerozoicLater Proterozoic-PaleozoicLate Proterozoic-Cambriannone none 5 1.03089698726e+004 4.08033740778e+006Metamorphosed andesitic tuffs and flows, medium to dark grayish green; minor felsic and mafic metavolcanic rock 952PPmg Raleigh Belt Raleigh Belt Intrusive Rocks Intrusive Rocks Foliated to massive granitic rock Phanerozioc Paleozoic Pennsylvanian-Permian 270-320 4,22 4 1.74407007644e+004 4.82488914935e+006Megacrystic to equigranular. Rolesville suite, Wise and Lemon Springs (?) intrusives 953PPmg Kings Mountain Belt Kings Mountain Belt Intrusive Rocks Intrusive Rocks Foliated to massive granitic rock Phanerozioc Paleozoic Pennsylvanian-Permian 270-230 18,19 3 1.67712299708e+005 3.58543308121e+008Megacrystic to equigranular. High Shoals Granite 954OCg Inner Piedmont, Chauga Belt, Smith River Allochthon, and Sauratown MountainInner Piedmont Intrusive Rocks Intrusive Rocks Metamorphosed granitic rock Phanerozioc Paleozoic Cambrian-Ordovician 455-540 10 5 5.19046788636e+004 2.38970730314e+007Equigranular to megacrystic, foliated to massive. Includes Toluca Granite 955CZfv Eastern Slate Belt Eastern Slate Belt Metamorphic rocks Metamorphic Rocks Felsic metavolcanic rock Proterozoic-PhanerozoicLater Proterozoic-PaleozoicLate Proterozoic-Cambriannone none 6 9.15687966905e+004 8.01391582998e+007Metamorphosed dacitic to rhyolitic flows and tuffs, light gray to greenish gray; interbedded with mafic and intermediate metavolcanic rock, meta-argillite, and metamudstone 956Tt Coastal Plain Coastal Plain Tertiary Sedimentary Rocks Terrace deposites and upland sediment Phanerozioc Cenozoic Tertiary none none 12 3.11453785400e+003 6.53638709072e+005Gravel, clayey sand, and sand, minor iron-oxide cemented sandstone 957Tec Coastal Plain Coastal Plain Tertiary Sedimentary Rocks Comfort Member and New Hanover Member, Undivided Phanerozioc Cenozoic Tertiary none none 6 4.53223450082e+003 1.40357186196e+006Comfort Member: Bryozoan-echinoid skeletal limestone, locally dolomitized, solution cavities common. New Hanover Member: Phosphate-pebble conglomerate, micritic, thin; restricted to basal part of Castle Hayne Formation in southeastern counties 958CZg Eastern Slate Belt Eastern Slate Belt Intrusive Rocks Intrusive Rocks Metamorphosed granitic rock Proterozoic-PhanerozoicLater Proterozoic-PaleozoicLate Proterozoic-Cambrian520-650 22 1 2.46416852492e+003 3.82754192028e+005Megacrystic, well foliated; locally contains hornblende. Fountain intrusive 959CZfg Raleigh Belt Raleigh Belt Metamorphic rocks Metamorphic Rocks Felsic mica gneiss Proterozoic-PhanerozoicLater Proterozoic-PaleozoicLate Proterozoic-Cambriannone none 3 4.56246305356e+004 2.33832415893e+007Interlayered with graphitic mica schist and mica-garnet schist, commonly with kyanite; minor hornblende gneiss 960Tt Coastal Plain Coastal Plain Tertiary Sedimentary Rocks Terrace deposites and upland sediment Phanerozioc Cenozoic Tertiary none none 12 6.46772039111e+004 3.25801028431e+007Gravel, clayey sand, and sand, minor iron-oxide cemented sandstone 961DSg Charlotte and Milton Belts Charlotte Belt Intrusive Rocks Intrusive Rocks Granite of Salisbury Plutonic Suite Phanerozioc Paleozoic Silurian-Devonian 385-415 5 10 1.27932636721e+004 6.64029143917e+006Pink, massive to weakly foliated. Gold Hill, Kannapolis, Salisbury, Southmont, and Yadkin intrusives 962Zs Blue Ridge Belt Blue Ridge Sedimentary and Metamorphic Rocks Sedimentary and Metamorphic RocksSnowbird Group, Undivided Proterozoic Late Proterozoic Late Proterozoic none none 24 8.87556971138e+004 2.99568363090e+007Feldspathic metasiltstone, metasandstone, and phyllite. Basal schist contains lenses of quartz-pebble conglomerate 963Tt Coastal Plain Coastal Plain Tertiary Sedimentary Rocks Terrace deposites and upland sediment Phanerozioc Cenozoic Tertiary none none 12 3.63293486701e+003 6.82202179088e+005Gravel, clayey sand, and sand, minor iron-oxide cemented sandstone 964CZbl Kings Mountain Belt Kings Mountain Belt Metamorphic rocks Metamorphic Rocks Blacksburg Formation Proterozoic-PhanerozoicLater Proterozoic-PaleozoicLate Proterozoic-Cambriannone none 2 1.45296726570e+005 2.12233029957e+008Sericite schist, locally with graphite, phyllite with sericite quartzite, banded marble, amphibolite, and minor calc-silicate rock 965CZg Raleigh Belt Raleigh Belt Intrusive Rocks Intrusive Rocks Metamorphosed granitic rock Proterozoic-PhanerozoicLater Proterozoic-PaleozoicLate Proterozoic-Cambrian520-650 7 1 1.18500766128e+004 5.81281459512e+006Megacrystic, well foliated, locally contains hornblende; Vance County suite and Buckhorn granite 966TRc Triassic Basins Durham-Sanford Subbasins Newark Supergroup Sedimentary Rocks Chatham Group, Undivided Phanerozioc Mesozoic Triassic none none 4 5.95632208165e+003 1.34640486356e+006Conglomerate, fanglomerate, sandstone, and mudstone. Conglomerate and fanglomerate shown by pattern 967DSg Charlotte and Milton Belts Charlotte Belt Intrusive Rocks Intrusive Rocks Granite of Salisbury Plutonic Suite Phanerozioc Paleozoic Silurian-Devonian 385-415 5 10 4.00962153720e+004 5.72116363244e+007Pink, massive to weakly foliated. Gold Hill, Kannapolis, Salisbury, Southmont, and Yadkin intrusives 968PzZm Charlotte and Milton Belts Charlotte Belt Intrusive Rocks Intrusive Rocks Metamorphosed mafic rock Phanerozioc Paleozoic Permian none none 3 7.67278748008e+003 3.64600483993e+006Metagabbro, metadiorite, and mafic plutonic-volcanic complexes 969CZph Charlotte and Milton Belts Charlotte Belt Metamorphic rocks Metamorphic Rocks Phyllite and schist Proterozoic-PhanerozoicLater Proterozoic-PaleozoicLate Proterozoic-Cambriannone none 1 2.30488071669e+005 3.59227095189e+008Minor biotite, pyrite, and sillimanite; includes minor quartzite 970TRcp Triassic Basins Durham-Sanford Subbasins Chatham Group Sedimentary Rocks Pekin Formation Phanerozioc Mesozoic Triassic none none 1 1.37665484491e+004 7.61072870119e+006Conglomerate, sandstone, and mudstone 971PPmg Raleigh Belt Raleigh Belt Intrusive Rocks Intrusive Rocks Foliated to massive granitic rock Phanerozioc Paleozoic Pennsylvanian-Permian 270-320 4,22 4 2.53010072491e+004 1.32271685920e+007Megacrystic to equigranular. Rolesville suite, Wise and Lemon Springs (?) intrusives 972CZbg Raleigh Belt Raleigh Belt Metamorphic rocks Metamorphic Rocks Biotite gneiss and schist Proterozoic-PhanerozoicLater Proterozoic-PaleozoicLate Proterozoic-Cambriannone none 6 1.45152945002e+004 6.21124665129e+006Inequigranular and megacrystic; in places contains garnet; interlayered and gradational with mica schist and amphibolite; includes small masses of granitic rock 973CZve Carolina Slate Belt Carolina Slate Belt Metamorphic rocks Metamorphic Rocks Metavolcanic epi-clastic rock Proterozoic-PhanerozoicLater Proterozoic-PaleozoicLate Proterozoic-Cambriannone none 3 1.79782226311e+004 5.92610672970e+006Metamorphosed argillite, mudstone, volcanic sandstone, conglomerate, and volcanic rock 974CZmv Charlotte and Milton Belts Charlotte Belt Metamorphic rocks Metamorphic Rocks Mafic metavolcanic rock Proterozoic-PhanerozoicLater Proterozoic-PaleozoicLate Proterozoic-Cambriannone none 4 2.41010822373e+004 1.03901449441e+007Metamorphosed basaltic to andesitic tuffs and flows, grayish green to black. Locally includes hypabyssal intrusives and minor felsic metavolcanic rock 975Zchs Blue Ridge Belt Blue Ridge Ocoee Supergroup Sedimentary and Metamorphic RocksSlate of Copper Hill Formation Proterozoic Late Proterozoic Late Proterozoic none none 29 1.17844712200e+004 2.73982858467e+006Slate to phyllite, dark gray, graphitic, sulfidic; includes metagraywacke with local graded bedding 976PzZu Inner Piedmont, Chauga Belt, Smith River Allochthon, and Sauratown MountainInner Piedmont Intrusive Rocks Intrusive Rocks Meta-ultramafic rock Phanerozioc Paleozoic Permian none none 2 1.95931529633e+003 2.42548510561e+005Metamorphosed dunite, local peridotite; serpentinite, soapstone, and other altered ultramafic rock. Only larger bodies shown 977TRcp Triassic Basins Durham-Sanford Subbasins Chatham Group Sedimentary Rocks Pekin Formation Phanerozioc Mesozoic Triassic none none 1 6.50727023914e+004 1.39431663444e+008Conglomerate, sandstone, and mudstone 978Tt Coastal Plain Coastal Plain Tertiary Sedimentary Rocks Terrace deposites and upland sediment Phanerozioc Cenozoic Tertiary none none 12 7.91941921958e+003 3.06782870757e+006Gravel, clayey sand, and sand, minor iron-oxide cemented sandstone 979Tt Coastal Plain Coastal Plain Tertiary Sedimentary Rocks Terrace deposites and upland sediment Phanerozioc Cenozoic Tertiary none none 12 1.53256557748e+004 9.23808403912e+006Gravel, clayey sand, and sand, minor iron-oxide cemented sandstone 980OCg Inner Piedmont, Chauga Belt, Smith River Allochthon, and Sauratown MountainInner Piedmont Intrusive Rocks Intrusive Rocks Metamorphosed granitic rock Phanerozioc Paleozoic Cambrian-Ordovician 455-540 10 5 4.26660185284e+004 2.08358074038e+007Equigranular to megacrystic, foliated to massive. Includes Toluca Granite 981Km Coastal Plain Coastal Plain Cretaceous Sedimentary Rocks Middendorf Formation Phanerozioc Mesozoic Cretaceous none none 2 4.53547818740e+005 7.87121693221e+008Sand, sandstone, and mudstone, gray to pale gray with an orange cast, mottled; clay balls and iron-cemented concretions common, beds laterally discontinous, cross-bedding common 982Za Blue Ridge Belt Blue Ridge Ocoee Supergroup Sedimentary and Metamorphic RocksAnakeesta Formation Proterozoic Late Proterozoic Late Proterozoic none none 27 3.83421964124e+004 1.50898474210e+007Slate to schist, dark gray, graphitic and sulfidic; includes interbedded argillaceous, feldspathic metagraywacke 983Zgs Blue Ridge Belt Blue Ridge Ocoee Supergroup Sedimentary and Metamorphic RocksGreat Smoky Group, Undivided Proterozoic Late Proterozoic Late Proterozoic none none 34 5.90507208474e+004 7.26771076239e+007Thick metasedimentary sequence of massive to graded beds of metagraywacke and metasiltstone with interbedded graphitic and sulfidic slate and schist 984Km Coastal Plain Coastal Plain Cretaceous Sedimentary Rocks Middendorf Formation Phanerozioc Mesozoic Cretaceous none none 2 1.31370149916e+005 8.69512618956e+007Sand, sandstone, and mudstone, gray to pale gray with an orange cast, mottled; clay balls and iron-cemented concretions common, beds laterally discontinous, cross-bedding common 985PzZu Blue Ridge Belt Blue Ridge Intrusive Rocks Intrusive Rocks Meta-ultramafic rock Phanerozioc Paleozoic Permian none none 5 2.11411657345e+003 2.49536230334e+005Metamorphosed dunite, local peridotite; serpentinite, soapstone, and other altered ultramafic rock. Only larger bodies shown 986PzZu Blue Ridge Belt Blue Ridge Intrusive Rocks Intrusive Rocks Meta-ultramafic rock Phanerozioc Paleozoic Permian none none 5 2.51100098417e+003 2.96501099662e+005Metamorphosed dunite, local peridotite; serpentinite, soapstone, and other altered ultramafic rock. Only larger bodies shown 987CZbg Raleigh Belt Raleigh Belt Intrusive Rocks Metamorphic Rocks Biotite gneiss and schist Proterozoic-PhanerozoicLater Proterozoic-PaleozoicLate Proterozoic-Cambriannone none 6 9.27263777852e+004 8.75841616873e+007Inequigranular and megacrystic; in places contains garnet; interlayered and gradational with mica schist and amphibolite; includes small masses of granitic rock 988Zsl Blue Ridge Belt Blue Ridge Snowbird Group Sedimentary and Metamorphic RocksLongarm Quartzite Proterozoic Late Proterozoic Late Proterozoic none none 21 2.26458553565e+004 8.42527134693e+006Cross-bedded, feldspathic, locally conglomeratic; includes dark slate and metasiltstone 989Tt Coastal Plain Coastal Plain Tertiary Sedimentary Rocks Terrace deposites and upland sediment Phanerozioc Cenozoic Tertiary none none 12 3.16154935699e+003 5.76811398234e+005Gravel, clayey sand, and sand, minor iron-oxide cemented sandstone 990CZbg Raleigh Belt Raleigh Belt Metamorphic rocks Metamorphic Rocks Biotite gneiss and schist Proterozoic-PhanerozoicLater Proterozoic-PaleozoicLate Proterozoic-Cambriannone none 6 1.05678974782e+005 4.95738500345e+007Inequigranular and megacrystic; in places contains garnet; interlayered and gradational with mica schist and amphibolite; includes small masses of granitic rock 991CZfv Eastern Slate Belt Eastern Slate Belt Metamorphic rocks Metamorphic Rocks Felsic metavolcanic rock Proterozoic-PhanerozoicLater Proterozoic-PaleozoicLate Proterozoic-Cambriannone none 6 1.18608676648e+004 3.89637932997e+006Metamorphosed dacitic to rhyolitic flows and tuffs, light gray to greenish gray; interbedded with mafic and intermediate metavolcanic rock, meta-argillite, and metamudstone 992CZmv Carolina Slate Belt Carolina Slate Belt Metamorphic rocks Metamorphic Rocks Mafic metavolcanic rock Proterozoic-PhanerozoicLater Proterozoic-PaleozoicLate Proterozoic-Cambriannone none 7 9.65714475717e+003 1.68054268026e+006Metamorphosed basaltic flows and tuffs, dark green to black; interbedded with felsic and intermediate metavolcanic rock and metamudstone. CZmv1 - Cid Formation (southwest of Asheboro) 993CZve Carolina Slate Belt Carolina Slate Belt Metamorphic rocks Metamorphic Rocks Metavolcanic epi-clastic rock Proterozoic-PhanerozoicLater Proterozoic-PaleozoicLate Proterozoic-Cambriannone none 3 6.31878865352e+003 1.89833741105e+006Metamorphosed argillite, mudstone, volcanic sandstone, conglomerate, and volcanic rock 994Kp Coastal Plain Coastal Plain Cretaceous Sedimentary Rocks Peedee Formation Phanerozioc Mesozoic Cretaceous none none 4 1.00530395606e+004 3.08399022813e+006Sand, clayey sand, and clay, greenish gray to olive black, massive, glauconitic, locally fossiliferous and calcareous. Patches of sandy molluscan-mold limestone in upper part 995Tt Coastal Plain Coastal Plain Tertiary Sedimentary Rocks Terrace deposites and upland sediment Phanerozioc Cenozoic Tertiary none none 12 2.33273727797e+004 1.76815282520e+007Gravel, clayey sand, and sand, minor iron-oxide cemented sandstone 996Zchs Blue Ridge Belt Blue Ridge Ocoee Supergroup Sedimentary and Metamorphic RocksSlate of Copper Hill Formation Proterozoic Late Proterozoic Late Proterozoic none none 29 8.52832146798e+004 7.04562044215e+007Slate to phyllite, dark gray, graphitic, sulfidic; includes metagraywacke with local graded bedding 997CZph Raleigh Belt Raleigh Belt Metamorphic rocks Metamorphic Rocks Phyllite and schist Proterozoic-PhanerozoicLater Proterozoic-PaleozoicLate Proterozoic-Cambriannone none 1 1.90882585647e+004 1.05975579208e+007Minor biotite and pyrite; includes phyllonite, sheared fine-grained metasediment, and metavolcanic rock 998Tpy Coastal Plain Coastal Plain Tertiary Sedimentary Rocks Yorktown Formation and Duplin Formation, Undivided Phanerozioc Cenozoic Tertiary none none 10 3.21786867705e+004 2.59757607793e+007Yorktown Formation: Fossiliferous clay with varying amounts of fine-grained sand, bluish gray, shell material commonly concentrated in lenses; mainly in area north of Neuse River. Duplin Formation: Shelly, medium- to coarse-grained sand, sandy marl, and limestone, bluish gray; mainly in area south of Neuse River 999CZve Carolina Slate Belt Carolina Slate Belt Metamorphic rocks Metamorphic Rocks Metavolcanic epi-clastic rock Proterozoic-PhanerozoicLater Proterozoic-PaleozoicLate Proterozoic-Cambriannone none 3 1.17424579314e+004 2.88255029194e+006Metamorphosed argillite, mudstone, volcanic sandstone, conglomerate, and volcanic rock 1000CZfv Eastern Slate Belt Eastern Slate Belt Metamorphic rocks Metamorphic Rocks Felsic metavolcanic rock Proterozoic-PhanerozoicLater Proterozoic-PaleozoicLate Proterozoic-Cambriannone none 6 4.13173015389e+003 1.17583741295e+006Metamorphosed dacitic to rhyolitic flows and tuffs, light gray to greenish gray; interbedded with mafic and intermediate metavolcanic rock, meta-argillite, and metamudstone 1001PzZu Blue Ridge Belt Blue Ridge Intrusive Rocks Intrusive Rocks Meta-ultramafic rock Phanerozioc Paleozoic Permian none none 5 2.52991429871e+003 3.88185936868e+005Metamorphosed dunite, local peridotite; serpentinite, soapstone, and other altered ultramafic rock. Only larger bodies shown 1002Tt Coastal Plain Coastal Plain Tertiary Sedimentary Rocks Terrace deposites and upland sediment Phanerozioc Cenozoic Tertiary none none 12 3.28486480550e+003 4.80052041697e+005Gravel, clayey sand, and sand, minor iron-oxide cemented sandstone 1003CZbg Inner Piedmont, Chauga Belt, Smith River Allochthon, and Sauratown MountainInner Piedmont Metamorphic rocks Metamorphic Rocks Biotite gneiss and schist Proterozoic-PhanerozoicLater Proterozoic-PaleozoicLate Proterozoic-Cambriannone none 16 5.65595898132e+004 3.00304650757e+007Inequigranular, locally abundant potassic feldspar and garnet; interlayered and gradational with calc-silicate rock, sillimanite-mica schist, and amphibolite. Contains small masses of granitic rock 1004CZve Carolina Slate Belt Carolina Slate Belt Metamorphic rocks Metamorphic Rocks Metavolcanic epi-clastic rock Proterozoic-PhanerozoicLater Proterozoic-PaleozoicLate Proterozoic-Cambriannone none 3 1.18837903652e+004 4.44873706838e+006Metamorphosed argillite, mudstone, volcanic sandstone, conglomerate, and volcanic rock 1005PzZg Carolina Slate Belt Carolina Slate Belt Intrusive Rocks Intrusive Rocks Metamorphosed gabbro and diorite Phanerozioc Paleozoic Permian none none 4 3.43592623297e+003 5.99589217903e+005Foliated to masive 1006CZve Carolina Slate Belt Carolina Slate Belt Metamorphic rocks Metamorphic Rocks Metavolcanic epi-clastic rock Proterozoic-PhanerozoicLater Proterozoic-PaleozoicLate Proterozoic-Cambriannone none 3 1.20614428431e+004 4.20677625143e+006Metamorphosed argillite, mudstone, volcanic sandstone, conglomerate, and volcanic rock 1007PzZu Blue Ridge Belt Blue Ridge Intrusive Rocks Intrusive Rocks Meta-ultramafic rock Phanerozioc Paleozoic Permian none none 5 1.66747111375e+003 1.81009909066e+005Metamorphosed dunite, local peridotite; serpentinite, soapstone, and other altered ultramafic rock. Only larger bodies shown 1008TRcc Triassic Basins Durham-Sanford Subbasins Chatham Group Sedimentary Rocks Cumnock Formation Phanerozioc Mesozoic Triassic none none 2 8.82254346679e+003 1.89544404769e+006Sandstone and mudstone, gray to black; coal beds and carbonaceous shale. Grades into Pekin and Sanford formations 1009TRcs Triassic Basins Durham-Sanford Subbasins Chatham Group Sedimentary Rocks Sanford Formation Phanerozioc Mesozoic Triassic none none 3 5.54902389310e+004 5.67840937142e+007Conglomerate, fanglomerate, sandstone, and mudstone 1010PzZu Blue Ridge Belt Blue Ridge Intrusive Rocks Intrusive Rocks Meta-ultramafic rock Phanerozioc Paleozoic Permian none none 5 1.92239727349e+003 2.20740595938e+005Metamorphosed dunite, local peridotite; serpentinite, soapstone, and other altered ultramafic rock. Only larger bodies shown 1011Zbt Kings Mountain Belt Kings Mountain Belt Metamorphic rocks Metamorphic Rocks Battleground Formation Proterozoic Late Proterozoic Late Proterozoic none none 1 2.16723302882e+005 2.73214897299e+008Quartz-sericite schist with metavolcanic rock, quartz-pebble metaconglomerate, kyanite-sillimanite quartzite, and garnet-quartz rock 1012CZfv Eastern Slate Belt Eastern Slate Belt Metamorphic rocks Metamorphic Rocks Felsic metavolcanic rock Proterozoic-PhanerozoicLater Proterozoic-PaleozoicLate Proterozoic-Cambriannone none 6 4.01818312174e+003 1.11127971847e+006Metamorphosed dacitic to rhyolitic flows and tuffs, light gray to greenish gray; interbedded with mafic and intermediate metavolcanic rock, meta-argillite, and metamudstone 1013Tt Coastal Plain Coastal Plain Tertiary Sedimentary Rocks Terrace deposites and upland sediment Phanerozioc Cenozoic Tertiary none none 12 7.14034157545e+004 1.14022355047e+008Gravel, clayey sand, and sand, minor iron-oxide cemented sandstone 1014DOg Charlotte and Milton Belts Charlotte Belt Intrusive Rocks Intrusive Rocks Granitic rock Phanerozioc Paleozoic Ordovician-Devonian none none 7 9.27491021241e+003 4.94039893548e+006Locally pinkish gray, massive to weakly foliated; contains hornblende 1015DSg Charlotte and Milton Belts Charlotte Belt Intrusive Rocks Intrusive Rocks Granite of Salisbury Plutonic Suite Phanerozioc Paleozoic Silurian-Devonian 385-415 5 10 3.37056171499e+004 2.67752945530e+007Pink, massive to weakly foliated. Gold Hill, Kannapolis, Salisbury, Southmont, and Yadkin intrusives 1016CZbg Raleigh Belt Raleigh Belt Metamorphic rocks Metamorphic Rocks Biotite gneiss and schist Proterozoic-PhanerozoicLater Proterozoic-PaleozoicLate Proterozoic-Cambriannone none 6 8.54820883982e+004 4.19286495170e+007Inequigranular and megacrystic; in places contains garnet; interlayered and gradational with mica schist and amphibolite; includes small masses of granitic rock 1017Chg Inner Piedmont, Chauga Belt, Smith River Allochthon, and Sauratown MountainChauga Belt Intrusive Rocks Intrusive Rocks Henderson Gneiss Phanerozioc Paleozoic Cambrian 524 10 4 2.69217279252e+003 3.04623576162e+005Monzonitic to granodioritic, inequigranular 1018Tt Coastal Plain Coastal Plain Tertiary Sedimentary Rocks Terrace deposites and upland sediment Phanerozioc Cenozoic Tertiary none none 12 3.05741747481e+003 6.58890712063e+005Gravel, clayey sand, and sand, minor iron-oxide cemented sandstone 1019PzZu Blue Ridge Belt Blue Ridge Intrusive Rocks Intrusive Rocks Meta-ultramafic rock Phanerozioc Paleozoic Permian none none 5 1.74504006996e+003 2.21761148563e+005Metamorphosed dunite, local peridotite; serpentinite, soapstone, and other altered ultramafic rock. Only larger bodies shown 1020PzZg Carolina Slate Belt Carolina Slate Belt Intrusive Rocks Intrusive Rocks Metamorphosed gabbro and diorite Phanerozioc Paleozoic Permian none none 4 4.12449306894e+003 1.24235434266e+006Foliated to masive 1021Zs Blue Ridge Belt Blue Ridge Sedimentary and Metamorphic Rocks Sedimentary and Metamorphic RocksSnowbird Group, Undivided Proterozoic Late Proterozoic Late Proterozoic none none 24 5.73455563060e+004 1.80315490597e+007Feldspathic metasiltstone, metasandstone, and phyllite. Basal schist contains lenses of quartz-pebble conglomerate 1022CZmd Eastern Slate Belt Eastern Slate Belt Metamorphic rocks Metamorphic Rocks Metamudstone and meta-argillite Proterozoic-PhanerozoicLater Proterozoic-PaleozoicLate Proterozoic-Cambriannone none 2 1.28744188138e+004 4.25162481336e+006Bedding plane and axial-planar cleavage common; interbedded with metasandstone, metaconglomerate, and metavolcanic rock 1023CZq Charlotte and Milton Belts Charlotte Belt Metamorphic rocks Metamorphic Rocks Quartzite Proterozoic-PhanerozoicLater Proterozoic-PaleozoicLate Proterozoic-Cambriannone none 2 8.37656891600e+003 2.29253954246e+006Massive to well foliated; contains andalusite, kyanite, or sillimanite, chloritoid, and pyrite 1025PzZu Blue Ridge Belt Blue Ridge Intrusive Rocks Intrusive Rocks Meta-ultramafic rock Phanerozioc Paleozoic Permian none none 5 2.03269408982e+003 2.42222587822e+005Metamorphosed dunite, local peridotite; serpentinite, soapstone, and other altered ultramafic rock. Only larger bodies shown 1026PzZg Carolina Slate Belt Carolina Slate Belt Intrusive Rocks Intrusive Rocks Metamorphosed gabbro and diorite Phanerozioc Paleozoic Permian none none 4 8.47042364851e+003 2.45531769456e+006Foliated to masive 1027Zgs Blue Ridge Belt Blue Ridge Ocoee Supergroup Sedimentary and Metamorphic RocksGreat Smoky Group, Undivided Proterozoic Late Proterozoic Late Proterozoic none none 34 2.17873785830e+005 2.67285453041e+008Thick metasedimentary sequence of massive to graded beds of metagraywacke and metasiltstone with interbedded graphitic and sulfidic slate and schist 1028Kc Coastal Plain Coastal Plain Cretaceous Sedimentary Rocks Cape Fear Formation Phanerozioc Mesozoic Cretaceous none none 1 4.83405261085e+004 2.65035384068e+007Sandstone and sandy mudstone, yellowish gray to bluish gray, mottled red to yellowish orange, indurated, graded and laterally continuous bedding, blocky clay, faint cross-bedding, feldspar and mica common 1029CZve Carolina Slate Belt Carolina Slate Belt Metamorphic rocks Metamorphic Rocks Metavolcanic epi-clastic rock Proterozoic-PhanerozoicLater Proterozoic-PaleozoicLate Proterozoic-Cambriannone none 3 8.24402807591e+003 2.09095865857e+006Metamorphosed argillite, mudstone, volcanic sandstone, conglomerate, and volcanic rock 1030Zs Blue Ridge Belt Blue Ridge Sedimentary and Metamorphic Rocks Sedimentary and Metamorphic RocksSnowbird Group, Undivided Proterozoic Late Proterozoic Late Proterozoic none none 24 2.77135920306e+003 2.80931048566e+005Feldspathic metasiltstone, metasandstone, and phyllite. Basal schist contains lenses of quartz-pebble conglomerate 1031Tt Coastal Plain Coastal Plain Tertiary Sedimentary Rocks Terrace deposites and upland sediment Phanerozioc Cenozoic Tertiary none none 12 4.44857436826e+004 2.72427348109e+007Gravel, clayey sand, and sand, minor iron-oxide cemented sandstone 1032OCg Inner Piedmont, Chauga Belt, Smith River Allochthon, and Sauratown MountainInner Piedmont Intrusive Rocks Intrusive Rocks Metamorphosed granitic rock Phanerozioc Paleozoic Cambrian-Ordovician 455-540 10 5 1.21177206762e+004 5.22893162043e+006Equigranular to megacrystic, foliated to massive. Includes Toluca Granite 1034Qp Coastal Plain Coastal Plain Quaternary Surficial deposits Surficial deposits, undivided Phanerozioc Cenozoic Quaternary none none 14 1.42323891498e+003 1.09383904287e+005Sand, clay, gravel, and peat deposited in marine, fluvial, eolian, and lacustrine environments. Quaternary deposits not shown at altitudes greater than approximately 25 feet above mean sea level (Suffolk Scarp, in part) 1033CZve Carolina Slate Belt Carolina Slate Belt Metamorphic rocks Metamorphic Rocks Metavolcanic epi-clastic rock Proterozoic-PhanerozoicLater Proterozoic-PaleozoicLate Proterozoic-Cambriannone none 3 2.59879822365e+004 2.31820514435e+007Metamorphosed argillite, mudstone, volcanic sandstone, conglomerate, and volcanic rock 1035CZbg Inner Piedmont, Chauga Belt, Smith River Allochthon, and Sauratown MountainInner Piedmont Metamorphic rocks Metamorphic Rocks Biotite gneiss and schist Proterozoic-PhanerozoicLater Proterozoic-PaleozoicLate Proterozoic-Cambriannone none 16 3.93914422482e+003 6.35455462057e+005Inequigranular, locally abundant potassic feldspar and garnet; interlayered and gradational with calc-silicate rock, sillimanite-mica schist, and amphibolite. Contains small masses of granitic rock 1036TRcc Triassic Basins Durham-Sanford Subbasins Chatham Group Sedimentary Rocks Cumnock Formation Phanerozioc Mesozoic Triassic none none 2 9.46686100982e+003 2.81457963995e+006Sandstone and mudstone, gray to black; coal beds and carbonaceous shale. Grades into Pekin and Sanford formations 1037CZms Inner Piedmont, Chauga Belt, Smith River Allochthon, and Sauratown MountainInner Piedmont Metamorphic rocks Metamorphic Rocks Mica schist Proterozoic-PhanerozoicLater Proterozoic-PaleozoicLate Proterozoic-Cambriannone none 14 4.30012575376e+004 1.46846391092e+007Garnet, staurolite, kyanite, or sillimanite occur locally; lenses and layers of quartz schist, micaceous quartzite, calc-silicate rock, biotite gneiss, amphibolite, and phyllite 1039PPg Charlotte and Milton Belts Charlotte Belt Intrusive Rocks Intrusive Rocks Granitic rock Phanerozioc Paleozoic Pennsylvanian-Permian 265-325 11,9 11 4.33254488659e+004 1.24527160386e+008Megacrystic to equigranular. Churchland Plutonic Suite (Western group) - Churchland, Landis, and Mooresville intrusives 1038CZpg Inner Piedmont, Chauga Belt, Smith River Allochthon, and Sauratown MountainInner Piedmont Metamorphic rocks Metamorphic Rocks Inequigranular biotite gneiss Proterozoic-PhanerozoicLater Proterozoic-PaleozoicLate Proterozoic-Cambriannone none 4 4.45755894440e+004 2.25945975912e+007Weakly foliated to massive, contains plagioclase megacrysts and, rarely, larger megacrysts of quartz and feldspar 1040CZfv Carolina Slate Belt Carolina Slate Belt Metamorphic rocks Metamorphic Rocks Felsic metavolcanic rock Proterozoic-PhanerozoicLater Proterozoic-PaleozoicLate Proterozoic-Cambriannone none 6 2.30578544676e+004 1.86562028784e+007Metamorphosed dacitic to rhyolitic flows and tuffs, light gray to greenish gray; interbedded with mafic and intermediate metavolcanic rock, meta-argillite, and metamudstone. CZfv2 - Cid Formation (southwest of Asheboro), CZfv1 - Uwharrie Formation (at Asheboro and to south) 1041TRcp Triassic Basins Durham-Sanford Subbasins Chatham Group Sedimentary Rocks Pekin Formation Phanerozioc Mesozoic Triassic none none 1 1.83018876369e+005 2.06734124054e+008Conglomerate, sandstone, and mudstone 1042PzZu Blue Ridge Belt Blue Ridge Intrusive Rocks Intrusive Rocks Meta-ultramafic rock Phanerozioc Paleozoic Permian none none 5 1.42035501838e+003 1.49913785910e+005Metamorphosed dunite, local peridotite; serpentinite, soapstone, and other altered ultramafic rock. Only larger bodies shown 1043Tpy Coastal Plain Coastal Plain Tertiary Sedimentary Rocks Yorktown Formation and Duplin Formation, Undivided Phanerozioc Cenozoic Tertiary none none 10 2.22104428602e+004 1.74570809042e+007Yorktown Formation: Fossiliferous clay with varying amounts of fine-grained sand, bluish gray, shell material commonly concentrated in lenses; mainly in area north of Neuse River. Duplin Formation: Shelly, medium- to coarse-grained sand, sandy marl, and limestone, bluish gray; mainly in area south of Neuse River 1054OCg Inner Piedmont, Chauga Belt, Smith River Allochthon, and Sauratown MountainInner Piedmont Intrusive Rocks Intrusive Rocks Metamorphosed granitic rock Phanerozioc Paleozoic Cambrian-Ordovician 455-540 10 5 1.14380923533e+004 2.75806314991e+006Equigranular to megacrystic, foliated to massive. Includes Toluca Granite 1055Chg Inner Piedmont, Chauga Belt, Smith River Allochthon, and Sauratown MountainChauga Belt Intrusive Rocks Intrusive Rocks Henderson Gneiss Phanerozioc Paleozoic Cambrian 524 10 4 5.15032540951e+003 1.29013287582e+006Monzonitic to granodioritic, inequigranular 1056Zatm Blue Ridge Belt Blue Ridge Ashe Metamorphic Suite and Tallulah Falls FormationSedimentary and Metamorphic RocksMuscovite-biotite gneiss Proterozoic Late Proterozoic Late Proterozoic none none 13 2.57423671319e+004 1.45173572849e+007Locally sulfidic; interlayered and gradational with mica schist, minor amphibolite, and hornblende gneiss 1057Tt Coastal Plain Coastal Plain Tertiary Sedimentary Rocks Terrace deposites and upland sediment Phanerozioc Cenozoic Tertiary none none 12 2.97200155479e+003 6.46987202719e+005Gravel, clayey sand, and sand, minor iron-oxide cemented sandstone 1058PzZu Inner Piedmont, Chauga Belt, Smith River Allochthon, and Sauratown MountainInner Piedmont Intrusive Rocks Intrusive Rocks Meta-ultramafic rock Phanerozioc Paleozoic Permian none none 2 2.29203352972e+003 3.16659786606e+005Metamorphosed dunite, local peridotite; serpentinite, soapstone, and other altered ultramafic rock. Only larger bodies shown 1059TRcs Triassic Basins Durham-Sanford Subbasins Chatham Group Sedimentary Rocks Sanford Formation Phanerozioc Mesozoic Triassic none none 3 5.78639091789e+003 9.42323572209e+005Conglomerate, fanglomerate, sandstone, and mudstone 1060CZbg Inner Piedmont, Chauga Belt, Smith River Allochthon, and Sauratown MountainInner Piedmont Metamorphic rocks Metamorphic Rocks Biotite gneiss and schist Proterozoic-PhanerozoicLater Proterozoic-PaleozoicLate Proterozoic-Cambriannone none 16 2.09101495821e+003 2.73722435036e+005Inequigranular, locally abundant potassic feldspar and garnet; interlayered and gradational with calc-silicate rock, sillimanite-mica schist, and amphibolite. Contains small masses of granitic rock 1061CZam Blue Ridge Belt Blue Ridge Intrusive Rocks Intrusive Rocks Amphibolite Proterozoic-PhanerozoicLater Proterozoic-PaleozoicLate Proterozoic-Cambriannone none 4 1.92712770013e+003 2.27148137578e+005Equigranular, massive to well foliated, dioritic to basaltic dikes and sills; variably metamorphosed 1063Tt Coastal Plain Coastal Plain Tertiary Sedimentary Rocks Terrace deposites and upland sediment Phanerozioc Cenozoic Tertiary none none 12 3.20705641000e+003 7.22183304941e+005Gravel, clayey sand, and sand, minor iron-oxide cemented sandstone 1064OCg Inner Piedmont, Chauga Belt, Smith River Allochthon, and Sauratown MountainInner Piedmont Intrusive Rocks Intrusive Rocks Metamorphosed granitic rock Phanerozioc Paleozoic Cambrian-Ordovician 455-540 10 5 7.47353840695e+004 7.05076779097e+007Equigranular to megacrystic, foliated to massive. Includes Toluca Granite 1065TRcc Triassic Basins Durham-Sanford Subbasins Chatham Group Sedimentary Rocks Cumnock Formation Phanerozioc Mesozoic Triassic none none 2 7.53440000467e+003 2.38645782310e+006Sandstone and mudstone, gray to black; coal beds and carbonaceous shale. Grades into Pekin and Sanford formations 1066CZph Eastern Slate Belt Eastern Slate Belt Metamorphic rocks Metamorphic Rocks Phyllite and schist Proterozoic-PhanerozoicLater Proterozoic-PaleozoicLate Proterozoic-Cambriannone none 1 1.11091944650e+005 4.44202264081e+007Minor biotite and pyrite; includes phyllonite, sheared fine-grained metasediment, and metavolcanic rock 1067CZmd Carolina Slate Belt Carolina Slate Belt Metamorphic rocks Metamorphic Rocks Metamudstone and meta-argillite Proterozoic-PhanerozoicLater Proterozoic-PaleozoicLate Proterozoic-Cambriannone none 8 4.93788158454e+003 1.01982120038e+006Thin to thick bedded; bedding plane and axial-planar cleavage common; interbedded with metasandstone, metaconglomerate, and metavolcanic rock. CZmd3 - Floyd Church Formation, CZmd2 - Cid Formation, CZmd1 - Tillery Formation: (southwest of Asheboro) 1068PPmg Raleigh Belt Raleigh Belt Intrusive Rocks Intrusive Rocks Foliated to massive granitic rock Phanerozioc Paleozoic Pennsylvanian-Permian 270-320 4,22 4 2.19483871857e+003 2.66896453541e+005Megacrystic to equigranular. Rolesville suite, Wise and Lemon Springs (?) intrusives 1069CZab Inner Piedmont, Chauga Belt, Smith River Allochthon, and Sauratown MountainInner Piedmont Metamorphic rocks Metamorphic Rocks Amphibolite and biotite gneiss Proterozoic-PhanerozoicLater Proterozoic-PaleozoicLate Proterozoic-Cambriannone none 13 1.18731263173e+004 4.32708628272e+006Interlayered; minor layers and lenses of hornblende gneiss, metagabbro, mica schist, and granitic rock 1070CZg Raleigh Belt Raleigh Belt Intrusive Rocks Intrusive Rocks Metamorphosed granitic rock Proterozoic-PhanerozoicLater Proterozoic-PaleozoicLate Proterozoic-Cambrian520-650 7 1 1.79560543526e+004 1.30726290506e+007Megacrystic, well foliated, locally contains hornblende; Vance County suite and Buckhorn granite 1852TRcc Triassic Basins Durham-Sanford Subbasins Chatham Group Sedimentary Rocks Cumnock Formation Phanerozioc Mesozoic Triassic none none 2 1.73626215639e+004 5.49742503226e+006Sandstone and mudstone, gray to black; coal beds and carbonaceous shale. Grades into Pekin and Sanford formations 1072CZbg Inner Piedmont, Chauga Belt, Smith River Allochthon, and Sauratown MountainInner Piedmont Metamorphic rocks Metamorphic Rocks Biotite gneiss and schist Proterozoic-PhanerozoicLater Proterozoic-PaleozoicLate Proterozoic-Cambriannone none 16 2.23961914575e+005 2.62825450960e+008Inequigranular, locally abundant potassic feldspar and garnet; interlayered and gradational with calc-silicate rock, sillimanite-mica schist, and amphibolite. Contains small masses of granitic rock 1073CZfv Eastern Slate Belt Eastern Slate Belt Metamorphic rocks Metamorphic Rocks Felsic metavolcanic rock Proterozoic-PhanerozoicLater Proterozoic-PaleozoicLate Proterozoic-Cambriannone none 6 3.22862468516e+003 5.94813499994e+005Metamorphosed dacitic to rhyolitic flows and tuffs, light gray to greenish gray; interbedded with mafic and intermediate metavolcanic rock, meta-argillite, and metamudstone 1074CZbg Raleigh Belt Raleigh Belt Metamorphic rocks Metamorphic Rocks Biotite gneiss and schist Proterozoic-PhanerozoicLater Proterozoic-PaleozoicLate Proterozoic-Cambriannone none 6 3.54955998650e+003 5.97935315128e+005Inequigranular and megacrystic; in places contains garnet; interlayered and gradational with mica schist and amphibolite; includes small masses of granitic rock 1075PzZg Carolina Slate Belt Carolina Slate Belt Intrusive Rocks Intrusive Rocks Metamorphosed gabbro and diorite Phanerozioc Paleozoic Permian none none 4 4.03266227236e+003 1.18137145260e+006Foliated to masive 1076Zwe Blue Ridge Belt Blue Ridge Ocoee Supergroup Sedimentary and Metamorphic RocksWehutty Formation Proterozoic Late Proterozoic Late Proterozoic none none 31 3.24050983898e+005 3.66545494851e+008Slate to schist, dark gray, graphitic and sulfidic; includes mica schist, metagraywacke, and metaconglomerate 1077CZbg Raleigh Belt Raleigh Belt Metamorphic rocks Metamorphic Rocks Biotite gneiss and schist Proterozoic-PhanerozoicLater Proterozoic-PaleozoicLate Proterozoic-Cambriannone none 6 4.68453173850e+003 7.91070761891e+005Inequigranular and megacrystic; in places contains garnet; interlayered and gradational with mica schist and amphibolite; includes small masses of granitic rock 1078CZve Carolina Slate Belt Carolina Slate Belt Metamorphic rocks Metamorphic Rocks Metavolcanic epi-clastic rock Proterozoic-PhanerozoicLater Proterozoic-PaleozoicLate Proterozoic-Cambriannone none 3 6.70748271986e+003 1.36928835580e+006Metamorphosed argillite, mudstone, volcanic sandstone, conglomerate, and volcanic rock 1079TRcs Triassic Basins Durham-Sanford Subbasins Chatham Group Sedimentary Rocks Sanford Formation Phanerozioc Mesozoic Triassic none none 3 1.93078319721e+005 3.06010754762e+008Conglomerate, fanglomerate, sandstone, and mudstone 1080Ybgg Blue Ridge Belt Blue Ridge Sedimentary and Metamorphic Rocks Sedimentary and Metamorphic RocksBiotite granitic gneiss Proterozoic Middle Proterozoic Middle Proterozoic none none 4 2.01705434058e+004 1.56442831805e+007Pinkish gray to light gray, massive to well foliated, granitic to quartz monzonitic; includes variably mylonitized orthogneiss and paragneiss, interlayered amphibolite, calc-silicate rock, and marble. Includes granites of Bryson City area, Straight Fork window, and Elk Park Plutonic Suite 1081DOg Charlotte and Milton Belts Charlotte Belt Intrusive Rocks Intrusive Rocks Granitic rock Phanerozioc Paleozoic Ordovician-Devonian none none 7 3.23578204166e+004 4.63282474275e+007Locally pinkish gray, massive to weakly foliated; contains hornblende 1082CZfv Carolina Slate Belt Carolina Slate Belt Metamorphic rocks Metamorphic Rocks Felsic metavolcanic rock Proterozoic-PhanerozoicLater Proterozoic-PaleozoicLate Proterozoic-Cambriannone none 6 9.28228095114e+003 4.22394220287e+006Metamorphosed dacitic to rhyolitic flows and tuffs, light gray to greenish gray; interbedded with mafic and intermediate metavolcanic rock, meta-argillite, and metamudstone. CZfv2 - Cid Formation (southwest of Asheboro), CZfv1 - Uwharrie Formation (at Asheboro and to south) 1083Zbg Blue Ridge Belt Blue Ridge Ocoee Supergroup Sedimentary and Metamorphic RocksBoyd Gap Formation Proterozoic Late Proterozoic Late Proterozoic none none 26 2.77590942858e+004 3.15888837043e+007Dark gray, highly-sulfidic slate and metasiltstone interbedded and gradational with metagraywacke. Stratigraphic position uncertain. In Cherokee County includes upper part of Buck Bald Formation 1084CZmv1Carolina Slate Belt Carolina Slate Belt Metamorphic rocks Metamorphic Rocks Cid Formation Proterozoic-PhanerozoicLater Proterozoic-PaleozoicLate Proterozoic-Cambriannone none 7 5.94708997775e+004 6.31138960752e+007Cid Formation (southwest of Asheboro) 1085CZfv Carolina Slate Belt Carolina Slate Belt Metamorphic rocks Metamorphic Rocks Felsic metavolcanic rock Proterozoic-PhanerozoicLater Proterozoic-PaleozoicLate Proterozoic-Cambriannone none 6 7.42896484900e+002 1.89388986750e+004Metamorphosed dacitic to rhyolitic flows and tuffs, light gray to greenish gray; interbedded with mafic and intermediate metavolcanic rock, meta-argillite, and metamudstone. CZfv2 - Cid Formation (southwest of Asheboro), CZfv1 - Uwharrie Formation (at Asheboro and to south) 1086Chg Inner Piedmont, Chauga Belt, Smith River Allochthon, and Sauratown MountainChauga Belt Intrusive Rocks Intrusive Rocks Henderson Gneiss Phanerozioc Paleozoic Cambrian 524 10 4 3.12728496735e+003 4.38848582427e+005Monzonitic to granodioritic, inequigranular 1087CZbg Inner Piedmont, Chauga Belt, Smith River Allochthon, and Sauratown MountainInner Piedmont Metamorphic rocks Metamorphic Rocks Biotite gneiss and schist Proterozoic-PhanerozoicLater Proterozoic-PaleozoicLate Proterozoic-Cambriannone none 16 2.73729871194e+003 4.04018368168e+005Inequigranular, locally abundant potassic feldspar and garnet; interlayered and gradational with calc-silicate rock, sillimanite-mica schist, and amphibolite. Contains small masses of granitic rock 1088PPmg Raleigh Belt Raleigh Belt Intrusive Rocks Intrusive Rocks Foliated to massive granitic rock Phanerozioc Paleozoic Pennsylvanian-Permian 270-320 4,22 4 6.37120543015e+003 1.45963998393e+006Megacrystic to equigranular. Rolesville suite, Wise and Lemon Springs (?) intrusives 1132CZv Charlotte and Milton Belts Charlotte Belt Metamorphic rocks Metamorphic Rocks Metavolcanic rock Proterozoic-PhanerozoicLater Proterozoic-PaleozoicLate Proterozoic-Cambriannone none 5 7.91898779582e+004 7.27990294828e+007Interbedded felsic to mafic tuffs and flowrock 1853Jd Triassic Basins Durham-Sanford Subbasins Intrusive Rocks Intrusive Rocks Diabase Phanerozioc Mesozoic Jurassic none none 1 4.63247912119e+003 8.79119650566e+005Dikes, gray to black 1071TRcc Triassic Basins Durham-Sanford Subbasins Chatham Group Sedimentary Rocks Cumnock Formation Phanerozioc Mesozoic Triassic none none 2 2.39146736014e+004 6.47357726107e+006Sandstone and mudstone, gray to black; coal beds and carbonaceous shale. Grades into Pekin and Sanford formations 1089ZYbn Blue Ridge Belt Blue Ridge Sedimentary and Metamorphic Rocks Sedimentary and Metamorphic RocksBiotite gneiss Proterozoic Middle-Late Proterozoic Middle-Late Proterozoic none none 8 7.65952321644e+003 1.58339826331e+006Migmatitic; interlayered and gradational with biotite-garnet gneiss and amphibolite; locally abundant quartz and alumino-silicates. Stratigraphic position uncertain 1090CZms Inner Piedmont, Chauga Belt, Smith River Allochthon, and Sauratown MountainInner Piedmont Metamorphic rocks Metamorphic Rocks Mica schist Proterozoic-PhanerozoicLater Proterozoic-PaleozoicLate Proterozoic-Cambriannone none 14 7.13154740636e+004 3.32755734161e+007Garnet, staurolite, kyanite, or sillimanite occur locally; lenses and layers of quartz schist, micaceous quartzite, calc-silicate rock, biotite gneiss, amphibolite, and phyllite 1091Tt Coastal Plain Coastal Plain Tertiary Sedimentary Rocks Terrace deposites and upland sediment Phanerozioc Cenozoic Tertiary none none 12 7.23122253554e+003 1.90246956307e+006Gravel, clayey sand, and sand, minor iron-oxide cemented sandstone 1092CZbg Inner Piedmont, Chauga Belt, Smith River Allochthon, and Sauratown MountainInner Piedmont Metamorphic rocks Metamorphic Rocks Biotite gneiss and schist Proterozoic-PhanerozoicLater Proterozoic-PaleozoicLate Proterozoic-Cambriannone none 16 5.60698485654e+003 7.92869549917e+005Inequigranular, locally abundant potassic feldspar and garnet; interlayered and gradational with calc-silicate rock, sillimanite-mica schist, and amphibolite. Contains small masses of granitic rock 1093Kb Coastal Plain Coastal Plain Cretaceous Sedimentary Rocks Black Creek Formation Phanerozioc Mesozoic Cretaceous none none 3 8.42336239088e+005 8.46477416665e+009Clay, gray to black, lignitic; contains thin beds and laminae of fine-grained micaceous sand and thick lenses of cross-bedded sand. Glauconitic, fossiliferous clayey sand lenses in upper part 1094Tt Coastal Plain Coastal Plain Tertiary Sedimentary Rocks Terrace deposites and upland sediment Phanerozioc Cenozoic Tertiary none none 12 4.69680892190e+003 1.16252946361e+006Gravel, clayey sand, and sand, minor iron-oxide cemented sandstone 1095CZph Eastern Slate Belt Eastern Slate Belt Metamorphic rocks Metamorphic Rocks Phyllite and schist Proterozoic-PhanerozoicLater Proterozoic-PaleozoicLate Proterozoic-Cambriannone none 1 8.02968274049e+004 4.15791254641e+007Minor biotite and pyrite; includes phyllonite, sheared fine-grained metasediment, and metavolcanic rock 1096CZfg Raleigh Belt Raleigh Belt Metamorphic rocks Metamorphic Rocks Felsic mica gneiss Proterozoic-PhanerozoicLater Proterozoic-PaleozoicLate Proterozoic-Cambriannone none 3 1.00548471638e+005 8.76803437828e+007Interlayered with graphitic mica schist and mica-garnet schist, commonly with kyanite; minor hornblende gneiss 1097CZbg Inner Piedmont, Chauga Belt, Smith River Allochthon, and Sauratown MountainInner Piedmont Metamorphic rocks Metamorphic Rocks Biotite gneiss and schist Proterozoic-PhanerozoicLater Proterozoic-PaleozoicLate Proterozoic-Cambriannone none 16 2.48968364507e+003 3.53883919479e+005Inequigranular, locally abundant potassic feldspar and garnet; interlayered and gradational with calc-silicate rock, sillimanite-mica schist, and amphibolite. Contains small masses of granitic rock 1098DSg Charlotte and Milton Belts Charlotte Belt Intrusive Rocks Intrusive Rocks Granite of Salisbury Plutonic Suite Phanerozioc Paleozoic Silurian-Devonian 385-415 5 10 1.14078933883e+004 5.67915727364e+006Pink, massive to weakly foliated. Gold Hill, Kannapolis, Salisbury, Southmont, and Yadkin intrusives 1099CZmd3Carolina Slate Belt Carolina Slate Belt Metamorphic rocks Metamorphic Rocks Floyd Church Formation Proterozoic-PhanerozoicLater Proterozoic-PaleozoicLate Proterozoic-Cambriannone none 8 2.62951383245e+005 6.45062041915e+008Floyd Church Formation (southwest of Asheboro) 1100PzZm Charlotte and Milton Belts Charlotte Belt Intrusive Rocks Intrusive Rocks Metamorphosed mafic rock Phanerozioc Paleozoic Permian none none 3 1.15326633550e+004 5.30953105941e+006Metagabbro, metadiorite, and mafic plutonic-volcanic complexes 1101CZtp Inner Piedmont, Chauga Belt, Smith River Allochthon, and Sauratown MountainInner Piedmont Metamorphic rocks Metamorphic Rocks Porphyroblastic gneiss Proterozoic-PhanerozoicLater Proterozoic-PaleozoicLate Proterozoic-Cambriannone none 3 7.69120928227e+004 5.44086172379e+007Massive to foliated, granodioritic, migmatitic 1102Ybgg Blue Ridge Belt Blue Ridge Sedimentary and Metamorphic Rocks Sedimentary and Metamorphic RocksBiotite granitic gneiss Proterozoic Middle Proterozoic Middle Proterozoic none none 4 2.34674705035e+004 2.44256748024e+007Pinkish gray to light gray, massive to well foliated, granitic to quartz monzonitic; includes variably mylonitized orthogneiss and paragneiss, interlayered amphibolite, calc-silicate rock, and marble. Includes granites of Bryson City area, Straight Fork window, and Elk Park Plutonic Suite 1103CZms Inner Piedmont, Chauga Belt, Smith River Allochthon, and Sauratown MountainInner Piedmont Metamorphic rocks Metamorphic Rocks Mica schist Proterozoic-PhanerozoicLater Proterozoic-PaleozoicLate Proterozoic-Cambriannone none 14 1.80657014617e+004 6.12608026107e+006Garnet, staurolite, kyanite, or sillimanite occur locally; lenses and layers of quartz schist, micaceous quartzite, calc-silicate rock, biotite gneiss, amphibolite, and phyllite 1104CZms Inner Piedmont, Chauga Belt, Smith River Allochthon, and Sauratown MountainInner Piedmont Metamorphic rocks Metamorphic Rocks Mica schist Proterozoic-PhanerozoicLater Proterozoic-PaleozoicLate Proterozoic-Cambriannone none 14 5.68560081862e+005 4.22137522386e+008Garnet, staurolite, kyanite, or sillimanite occur locally; lenses and layers of quartz schist, micaceous quartzite, calc-silicate rock, biotite gneiss, amphibolite, and phyllite 1105Mc Inner Piedmont, Chauga Belt, Smith River Allochthon, and Sauratown MountainInner Piedmont Intrusive Rocks Intrusive Rocks Cherryville Granite Phanerozioc Paleozoic Mississippian 351 20,21 9 1.03771585117e+005 1.17355765779e+008Massive to weakly foliated, contains pegmatites, lithium-bearing on east side 1106Tpy Coastal Plain Coastal Plain Tertiary Sedimentary Rocks Yorktown Formation and Duplin Formation, Undivided Phanerozioc Cenozoic Tertiary none none 10 1.68883066331e+004 1.17452478547e+007Yorktown Formation: Fossiliferous clay with varying amounts of fine-grained sand, bluish gray, shell material commonly concentrated in lenses; mainly in area north of Neuse River. Duplin Formation: Shelly, medium- to coarse-grained sand, sandy marl, and limestone, bluish gray; mainly in area south of Neuse River 1107DSg Charlotte and Milton Belts Charlotte Belt Intrusive Rocks Intrusive Rocks Granite of Salisbury Plutonic Suite Phanerozioc Paleozoic Silurian-Devonian 385-415 5 10 2.02970859299e+004 1.80983992471e+007Pink, massive to weakly foliated. Gold Hill, Kannapolis, Salisbury, Southmont, and Yadkin intrusives 1108PzZm Charlotte and Milton Belts Charlotte Belt Intrusive Rocks Intrusive Rocks Metamorphosed mafic rock Phanerozioc Paleozoic Permian none none 3 4.19245610107e+004 4.52378814051e+007Metagabbro, metadiorite, and mafic plutonic-volcanic complexes 1109CZab Inner Piedmont, Chauga Belt, Smith River Allochthon, and Sauratown MountainInner Piedmont Metamorphic rocks Metamorphic Rocks Amphibolite and biotite gneiss Proterozoic-PhanerozoicLater Proterozoic-PaleozoicLate Proterozoic-Cambriannone none 13 1.45788602618e+005 1.19299618896e+008Interlayered; minor layers and lenses of hornblende gneiss, metagabbro, mica schist, and granitic rock 1110Tt Coastal Plain Coastal Plain Tertiary Sedimentary Rocks Terrace deposites and upland sediment Phanerozioc Cenozoic Tertiary none none 12 1.93236997180e+004 7.85941820586e+006Gravel, clayey sand, and sand, minor iron-oxide cemented sandstone 1111CZph Carolina Slate Belt Carolina Slate Belt Metamorphic rocks Metamorphic Rocks Phyllite and schist Proterozoic-PhanerozoicLater Proterozoic-PaleozoicLate Proterozoic-Cambriannone none 1 1.67799093153e+004 1.29281636881e+007Locally laminated and pyritic; includes phyllonite, sheared fine-grained metasediment, and metavolcanic rock. In Lilesville granite aureole, includes hornfels (CZph1), and biotite gneiss and schist (CZbg) 1112DOg Charlotte and Milton Belts Charlotte Belt Intrusive Rocks Intrusive Rocks Granitic rock Phanerozioc Paleozoic Ordovician-Devonian none none 7 2.06867075897e+004 1.47715180103e+007Locally pinkish gray, massive to weakly foliated; contains hornblende 1113TRcc Triassic Basins Durham-Sanford Subbasins Chatham Group Sedimentary Rocks Cumnock Formation Phanerozioc Mesozoic Triassic none none 2 1.35178318348e+004 4.68834144435e+006Sandstone and mudstone, gray to black; coal beds and carbonaceous shale. Grades into Pekin and Sanford formations 1114Jd Triassic Basins Durham-Sanford Subbasins Intrusive Rocks Intrusive Rocks Diabase Phanerozioc Mesozoic Jurassic none none 1 5.07641041911e+003 8.74487116381e+005Dikes, gray to black 1115PzZm Charlotte and Milton Belts Charlotte Belt Intrusive Rocks Intrusive Rocks Metamorphosed mafic rock Phanerozioc Paleozoic Permian none none 3 1.13584490346e+004 5.82521433460e+006Metagabbro, metadiorite, and mafic plutonic-volcanic complexes 1118Kp Coastal Plain Coastal Plain Cretaceous Sedimentary Rocks Peedee Formation Phanerozioc Mesozoic Cretaceous none none 4 1.02835644770e+006 6.85291842978e+009Sand, clayey sand, and clay, greenish gray to olive black, massive, glauconitic, locally fossiliferous and calcareous. Patches of sandy molluscan-mold limestone in upper part 1119CZbg Raleigh Belt Raleigh Belt Metamorphic rocks Metamorphic Rocks Biotite gneiss and schist Proterozoic-PhanerozoicLater Proterozoic-PaleozoicLate Proterozoic-Cambriannone none 6 7.23251269697e+003 2.02323365730e+006Inequigranular and megacrystic; in places contains garnet; interlayered and gradational with mica schist and amphibolite; includes small masses of granitic rock 1120Qp Coastal Plain Coastal Plain Quaternary Surficial deposits Surficial deposits, undivided Phanerozioc Cenozoic Quaternary none none 14 2.31084631758e+003 2.97980469953e+005Sand, clay, gravel, and peat deposited in marine, fluvial, eolian, and lacustrine environments. Quaternary deposits not shown at altitudes greater than approximately 25 feet above mean sea level (Suffolk Scarp, in part) 1121DSg Charlotte and Milton Belts Charlotte Belt Intrusive Rocks Intrusive Rocks Granite of Salisbury Plutonic Suite Phanerozioc Paleozoic Silurian-Devonian 385-415 5 10 4.56806414198e+004 4.30395710505e+007Pink, massive to weakly foliated. Gold Hill, Kannapolis, Salisbury, Southmont, and Yadkin intrusives 1122CZbg Raleigh Belt Raleigh Belt Metamorphic rocks Metamorphic Rocks Biotite gneiss and schist Proterozoic-PhanerozoicLater Proterozoic-PaleozoicLate Proterozoic-Cambriannone none 6 7.96902203873e+003 1.94955768122e+006Inequigranular and megacrystic; in places contains garnet; interlayered and gradational with mica schist and amphibolite; includes small masses of granitic rock 1123Zwe Blue Ridge Belt Blue Ridge Ocoee Supergroup Sedimentary and Metamorphic RocksWehutty Formation Proterozoic Late Proterozoic Late Proterozoic none none 31 2.54394017064e+002 1.28855598940e+003Slate to schist, dark gray, graphitic and sulfidic; includes mica schist, metagraywacke, and metaconglomerate 1124OCg Inner Piedmont, Chauga Belt, Smith River Allochthon, and Sauratown MountainInner Piedmont Intrusive Rocks Intrusive Rocks Metamorphosed granitic rock Phanerozioc Paleozoic Cambrian-Ordovician 455-540 10 5 1.73026510567e+004 5.94040601442e+006Equigranular to megacrystic, foliated to massive. Includes Toluca Granite 1125CZmd Carolina Slate Belt Carolina Slate Belt Metamorphic rocks Metamorphic Rocks Metamudstone and meta-argillite Proterozoic-PhanerozoicLater Proterozoic-PaleozoicLate Proterozoic-Cambriannone none 8 3.77059408024e+004 2.99771286822e+007Thin to thick bedded; bedding plane and axial-planar cleavage common; interbedded with metasandstone, metaconglomerate, and metavolcanic rock. CZmd3 - Floyd Church Formation, CZmd2 - Cid Formation, CZmd1 - Tillery Formation: (southwest of Asheboro) 1126Tt Coastal Plain Coastal Plain Tertiary Sedimentary Rocks Terrace deposites and upland sediment Phanerozioc Cenozoic Tertiary none none 12 3.75236327997e+004 2.08088702201e+007Gravel, clayey sand, and sand, minor iron-oxide cemented sandstone 1127CZab Inner Piedmont, Chauga Belt, Smith River Allochthon, and Sauratown MountainInner Piedmont Metamorphic rocks Metamorphic Rocks Amphibolite and biotite gneiss Proterozoic-PhanerozoicLater Proterozoic-PaleozoicLate Proterozoic-Cambriannone none 13 1.91069567026e+004 1.05001446212e+007Interlayered; minor layers and lenses of hornblende gneiss, metagabbro, mica schist, and granitic rock 1128CZph Eastern Slate Belt Eastern Slate Belt Metamorphic rocks Metamorphic Rocks Phyllite and schist Proterozoic-PhanerozoicLater Proterozoic-PaleozoicLate Proterozoic-Cambriannone none 1 3.30014915722e+003 7.76703389713e+005Minor biotite and pyrite; includes phyllonite, sheared fine-grained metasediment, and metavolcanic rock 1129CZmd Carolina Slate Belt Carolina Slate Belt Metamorphic rocks Metamorphic Rocks Metamudstone and meta-argillite Proterozoic-PhanerozoicLater Proterozoic-PaleozoicLate Proterozoic-Cambriannone none 8 1.52938905952e+004 1.14257044539e+007Thin to thick bedded; bedding plane and axial-planar cleavage common; interbedded with metasandstone, metaconglomerate, and metavolcanic rock. CZmd3 - Floyd Church Formation, CZmd2 - Cid Formation, CZmd1 - Tillery Formation: (southwest of Asheboro) 1130CZmd Carolina Slate Belt Carolina Slate Belt Metamorphic rocks Metamorphic Rocks Metamudstone and meta-argillite Proterozoic-PhanerozoicLater Proterozoic-PaleozoicLate Proterozoic-Cambriannone none 8 2.05315809627e+004 7.55366643584e+006Thin to thick bedded; bedding plane and axial-planar cleavage common; interbedded with metasandstone, metaconglomerate, and metavolcanic rock. CZmd3 - Floyd Church Formation, CZmd2 - Cid Formation, CZmd1 - Tillery Formation: (southwest of Asheboro) 1131CZmd Carolina Slate Belt Carolina Slate Belt Metamorphic rocks Metamorphic Rocks Metamudstone and meta-argillite Proterozoic-PhanerozoicLater Proterozoic-PaleozoicLate Proterozoic-Cambriannone none 8 1.09976618672e+004 3.17937817978e+006Thin to thick bedded; bedding plane and axial-planar cleavage common; interbedded with metasandstone, metaconglomerate, and metavolcanic rock. CZmd3 - Floyd Church Formation, CZmd2 - Cid Formation, CZmd1 - Tillery Formation: (southwest of Asheboro) 1133Jd Triassic Basins Durham-Sanford Subbasins Intrusive Rocks Intrusive Rocks Diabase Phanerozioc Mesozoic Jurassic none none 1 6.59875167039e+003 1.48856107582e+006Dikes, gray to black 1134CZy Carolina Slate Belt Carolina Slate Belt Metamorphic rocks Metamorphic Rocks Yadkin Formation Proterozoic-PhanerozoicLater Proterozoic-PaleozoicLate Proterozoic-Cambriannone none 9 1.40831101713e+005 2.44753432948e+008Metamorphosed graywacke, volcanic sandstone, and siltstone; interbedded with mafic and intermediate metavolcanic flows and tuffs 1135Km Coastal Plain Coastal Plain Cretaceous Sedimentary Rocks Middendorf Formation Phanerozioc Mesozoic Cretaceous none none 2 2.72948214288e+006 4.30634695506e+009Sand, sandstone, and mudstone, gray to pale gray with an orange cast, mottled; clay balls and iron-cemented concretions common, beds laterally discontinous, cross-bedding common 1136TRcc Triassic Basins Durham-Sanford Subbasins Chatham Group Sedimentary Rocks Cumnock Formation Phanerozioc Mesozoic Triassic none none 2 2.79540036131e+004 1.47166565068e+007Sandstone and mudstone, gray to black; coal beds and carbonaceous shale. Grades into Pekin and Sanford formations 1137DOgb Charlotte and Milton Belts Charlotte Belt Intrusive Rocks Intrusive Rocks Gabbro of Concord Plutonic Suite Phanerozioc Paleozoic Ordovician-Devonian 399-479 24 8 6.58903857666e+003 1.88634778138e+006Barber, Concord, Farmington, Mecklenburg, and Weddington intrusives 1138CZbg Inner Piedmont, Chauga Belt, Smith River Allochthon, and Sauratown MountainInner Piedmont Metamorphic rocks Metamorphic Rocks Biotite gneiss and schist Proterozoic-PhanerozoicLater Proterozoic-PaleozoicLate Proterozoic-Cambriannone none 16 1.17804113964e+004 2.27952890280e+006Inequigranular, locally abundant potassic feldspar and garnet; interlayered and gradational with calc-silicate rock, sillimanite-mica schist, and amphibolite. Contains small masses of granitic rock 1139Zhha Blue Ridge Belt Blue Ridge Ocoee Supergroup Sedimentary and Metamorphic RocksMetasandstone, Metagraywacke, Metasiltstone, and Mica schist Proterozoic Late Proterozoic Late Proterozoic none none 32 3.33246893723e+005 5.90873579687e+008Beds and lenses of calc-silicate rock locally abundant; garnet, staurolite, and cross-biotite porphyroblasts common in fine-grained layers. Includes Hughes Gap and Hothouse formations in southern area; Horse Branch Member of Ammons Formation and Grassy Branch Formation in northern area 1140CZmv Carolina Slate Belt Carolina Slate Belt Metamorphic rocks Metamorphic Rocks Mafic metavolcanic rock Proterozoic-PhanerozoicLater Proterozoic-PaleozoicLate Proterozoic-Cambriannone none 7 4.05405441195e+004 2.93056413118e+007Metamorphosed basaltic flows and tuffs, dark green to black; interbedded with felsic and intermediate metavolcanic rock and metamudstone. CZmv1 - Cid Formation (southwest of Asheboro) 1141PzZu Blue Ridge Belt Blue Ridge Intrusive Rocks Intrusive Rocks Meta-ultramafic rock Phanerozioc Paleozoic Permian none none 5 2.08930582881e+003 2.51294945976e+005Metamorphosed dunite, local peridotite; serpentinite, soapstone, and other altered ultramafic rock. Only larger bodies shown 1142CZbg Raleigh Belt Raleigh Belt Metamorphic rocks Metamorphic Rocks Biotite gneiss and schist Proterozoic-PhanerozoicLater Proterozoic-PaleozoicLate Proterozoic-Cambriannone none 6 6.78118666807e+003 2.57499024254e+006Inequigranular and megacrystic; in places contains garnet; interlayered and gradational with mica schist and amphibolite; includes small masses of granitic rock 1143CZph Raleigh Belt Raleigh Belt Metamorphic rocks Metamorphic Rocks Phyllite and schist Proterozoic-PhanerozoicLater Proterozoic-PaleozoicLate Proterozoic-Cambriannone none 1 2.56016090826e+004 1.72869266571e+007Minor biotite and pyrite; includes phyllonite, sheared fine-grained metasediment, and metavolcanic rock 1144CZms Inner Piedmont, Chauga Belt, Smith River Allochthon, and Sauratown MountainInner Piedmont Metamorphic rocks Metamorphic Rocks Mica schist Proterozoic-PhanerozoicLater Proterozoic-PaleozoicLate Proterozoic-Cambriannone none 14 2.14045581891e+004 5.15538582747e+006Garnet, staurolite, kyanite, or sillimanite occur locally; lenses and layers of quartz schist, micaceous quartzite, calc-silicate rock, biotite gneiss, amphibolite, and phyllite 1145Zchs Blue Ridge Belt Blue Ridge Ocoee Supergroup Sedimentary and Metamorphic RocksSlate of Copper Hill Formation Proterozoic Late Proterozoic Late Proterozoic none none 29 4.33434067700e+004 2.39503764667e+007Slate to phyllite, dark gray, graphitic, sulfidic; includes metagraywacke with local graded bedding 1146Kc Coastal Plain Coastal Plain Cretaceous Sedimentary Rocks Cape Fear Formation Phanerozioc Mesozoic Cretaceous none none 1 1.86664022814e+005 2.68339828998e+008Sandstone and sandy mudstone, yellowish gray to bluish gray, mottled red to yellowish orange, indurated, graded and laterally continuous bedding, blocky clay, faint cross-bedding, feldspar and mica common 1147CZbg Raleigh Belt Raleigh Belt Metamorphic rocks Metamorphic Rocks Biotite gneiss and schist Proterozoic-PhanerozoicLater Proterozoic-PaleozoicLate Proterozoic-Cambriannone none 6 9.78257792148e+003 2.47240984841e+006Inequigranular and megacrystic; in places contains garnet; interlayered and gradational with mica schist and amphibolite; includes small masses of granitic rock 1148CZbg Raleigh Belt Raleigh Belt Metamorphic rocks Metamorphic Rocks Biotite gneiss and schist Proterozoic-PhanerozoicLater Proterozoic-PaleozoicLate Proterozoic-Cambriannone none 6 2.57891107236e+004 1.25520636343e+007Inequigranular and megacrystic; in places contains garnet; interlayered and gradational with mica schist and amphibolite; includes small masses of granitic rock 1149Chg Inner Piedmont, Chauga Belt, Smith River Allochthon, and Sauratown MountainChauga Belt Intrusive Rocks Intrusive Rocks Henderson Gneiss Phanerozioc Paleozoic Cambrian 524 10 4 3.87037458311e+003 6.05507882291e+005Monzonitic to granodioritic, inequigranular 1150PzZu Blue Ridge Belt Blue Ridge Intrusive Rocks Intrusive Rocks Meta-ultramafic rock Phanerozioc Paleozoic Permian none none 5 4.51275868917e+004 8.76331998389e+006Metamorphosed dunite, local peridotite; serpentinite, soapstone, and other altered ultramafic rock. Only larger bodies shown 1151Zd Blue Ridge Belt Blue Ridge Ocoee Supergroup Sedimentary and Metamorphic RocksDean Formation Proterozoic Late Proterozoic Late Proterozoic none none 33 1.56705400548e+005 1.26626725169e+008Sericite schist with cross-biotite, staurolite, and garnet porphyroblasts; interbedded metagraywacke and quartz-pebble metaconglomerate 1152CZiv Carolina Slate Belt Carolina Slate Belt Metamorphic rocks Metamorphic Rocks Intermediate metavolcanic rock Proterozoic-PhanerozoicLater Proterozoic-PaleozoicLate Proterozoic-Cambriannone none 5 7.31221836529e+003 1.73628524795e+006Metamorphosed andesitic tuffs and flows, medium to dark grayish green; minor felsic and mafic metavolcanic rock 1153PzZu Blue Ridge Belt Blue Ridge Intrusive Rocks Intrusive Rocks Meta-ultramafic rock Phanerozioc Paleozoic Permian none none 5 1.80303361925e+003 2.01490279894e+005Metamorphosed dunite, local peridotite; serpentinite, soapstone, and other altered ultramafic rock. Only larger bodies shown 1154Kc Coastal Plain Coastal Plain Cretaceous Sedimentary Rocks Cape Fear Formation Phanerozioc Mesozoic Cretaceous none none 1 6.94837114093e+004 3.89167569077e+007Sandstone and sandy mudstone, yellowish gray to bluish gray, mottled red to yellowish orange, indurated, graded and laterally continuous bedding, blocky clay, faint cross-bedding, feldspar and mica common 1155Znt Murphy Belt Murphy Belt Metamorphic rocks Metamorphic Rocks Nantahala Formation and Tusquitee Quartzite, Undiv Proterozoic Late Proterozoic Late Proterozoic none none 2 2.31219457671e+005 1.70940640251e+008Nantahala Formation: slate and metasiltstone, dark gray, laminated to thin-bedded, sulfidic; Tusquitee Quartzite: white to light yellowish gray, numerous, thin slate layers 1156Tt Coastal Plain Coastal Plain Tertiary Sedimentary Rocks Terrace deposites and upland sediment Phanerozioc Cenozoic Tertiary none none 12 4.29052280826e+003 9.16526197116e+005Gravel, clayey sand, and sand, minor iron-oxide cemented sandstone 1157DOgb Charlotte and Milton Belts Charlotte Belt Intrusive Rocks Intrusive Rocks Gabbro of Concord Plutonic Suite Phanerozioc Paleozoic Ordovician-Devonian 399-479 24 8 1.81213779929e+004 2.46022884175e+007Barber, Concord, Farmington, Mecklenburg, and Weddington intrusives 1158CZgmsInner Piedmont, Chauga Belt, Smith River Allochthon, and Sauratown MountainInner Piedmont Metamorphic rocks Metamorphic Rocks Garnet-mica schist Proterozoic-PhanerozoicLater Proterozoic-PaleozoicLate Proterozoic-Cambriannone none 2 7.57211972645e+004 3.32904796387e+007Interlayered with amphibolite 1159CZfv Eastern Slate Belt Eastern Slate Belt Metamorphic rocks Metamorphic Rocks Felsic metavolcanic rock Proterozoic-PhanerozoicLater Proterozoic-PaleozoicLate Proterozoic-Cambriannone none 6 3.86945517701e+003 6.70817315106e+005Metamorphosed dacitic to rhyolitic flows and tuffs, light gray to greenish gray; interbedded with mafic and intermediate metavolcanic rock, meta-argillite, and metamudstone 1160Ybgg Blue Ridge Belt Blue Ridge Sedimentary and Metamorphic Rocks Sedimentary and Metamorphic RocksBiotite granitic gneiss Proterozoic Middle Proterozoic Middle Proterozoic none none 4 3.99234091692e+004 2.61701191871e+007Pinkish gray to light gray, massive to well foliated, granitic to quartz monzonitic; includes variably mylonitized orthogneiss and paragneiss, interlayered amphibolite, calc-silicate rock, and marble. Includes granites of Bryson City area, Straight Fork window, and Elk Park Plutonic Suite 1161CZab Inner Piedmont, Chauga Belt, Smith River Allochthon, and Sauratown MountainInner Piedmont Metamorphic rocks Metamorphic Rocks Amphibolite and biotite gneiss Proterozoic-PhanerozoicLater Proterozoic-PaleozoicLate Proterozoic-Cambriannone none 13 3.37962101964e+004 1.04142600347e+007Interlayered; minor layers and lenses of hornblende gneiss, metagabbro, mica schist, and granitic rock 1162CZfv Eastern Slate Belt Eastern Slate Belt Metamorphic rocks Metamorphic Rocks Felsic metavolcanic rock Proterozoic-PhanerozoicLater Proterozoic-PaleozoicLate Proterozoic-Cambriannone none 6 6.21990797526e+003 1.77963871528e+006Metamorphosed dacitic to rhyolitic flows and tuffs, light gray to greenish gray; interbedded with mafic and intermediate metavolcanic rock, meta-argillite, and metamudstone 1163CZfv Carolina Slate Belt Carolina Slate Belt Metamorphic rocks Metamorphic Rocks Felsic metavolcanic rock Proterozoic-PhanerozoicLater Proterozoic-PaleozoicLate Proterozoic-Cambriannone none 6 1.98033384776e+004 1.17943066288e+007Metamorphosed dacitic to rhyolitic flows and tuffs, light gray to greenish gray; interbedded with mafic and intermediate metavolcanic rock, meta-argillite, and metamudstone. CZfv2 - Cid Formation (southwest of Asheboro), CZfv1 - Uwharrie Formation (at Asheboro and to south) 1164CZfv Eastern Slate Belt Eastern Slate Belt Metamorphic rocks Metamorphic Rocks Felsic metavolcanic rock Proterozoic-PhanerozoicLater Proterozoic-PaleozoicLate Proterozoic-Cambriannone none 6 2.67316084975e+003 3.85611867478e+005Metamorphosed dacitic to rhyolitic flows and tuffs, light gray to greenish gray; interbedded with mafic and intermediate metavolcanic rock, meta-argillite, and metamudstone 1165Dsc Inner Piedmont, Chauga Belt, Smith River Allochthon, and Sauratown MountainInner Piedmont Intrusive Rocks Intrusive Rocks Caesars Head Granitic Gniess Phanerozioc Paleozoic Devonian 409 13 8 1.46857203621e+004 5.51278899886e+006Equigranular to porphyritic, massive to well foliated; contains biotite and muscovite 1166TRcc Triassic Basins Durham-Sanford Subbasins Chatham Group Sedimentary Rocks Cumnock Formation Phanerozioc Mesozoic Triassic none none 2 3.10943308372e+003 5.00693457331e+005Sandstone and mudstone, gray to black; coal beds and carbonaceous shale. Grades into Pekin and Sanford formations 1167Tt Coastal Plain Coastal Plain Tertiary Sedimentary Rocks Terrace deposites and upland sediment Phanerozioc Cenozoic Tertiary none none 12 1.72239671262e+004 7.63768008862e+006Gravel, clayey sand, and sand, minor iron-oxide cemented sandstone 1168CZfv Carolina Slate Belt Carolina Slate Belt Metamorphic rocks Metamorphic Rocks Felsic metavolcanic rock Proterozoic-PhanerozoicLater Proterozoic-PaleozoicLate Proterozoic-Cambriannone none 6 3.52599368137e+004 2.10698016819e+007Metamorphosed dacitic to rhyolitic flows and tuffs, light gray to greenish gray; interbedded with mafic and intermediate metavolcanic rock, meta-argillite, and metamudstone. CZfv2 - Cid Formation (southwest of Asheboro), CZfv1 - Uwharrie Formation (at Asheboro and to south) 1169CZmd Carolina Slate Belt Carolina Slate Belt Metamorphic rocks Metamorphic Rocks Metamudstone and meta-argillite Proterozoic-PhanerozoicLater Proterozoic-PaleozoicLate Proterozoic-Cambriannone none 8 4.29339143801e+004 2.43370437968e+007Thin to thick bedded; bedding plane and axial-planar cleavage common; interbedded with metasandstone, metaconglomerate, and metavolcanic rock. CZmd3 - Floyd Church Formation, CZmd2 - Cid Formation, CZmd1 - Tillery Formation: (southwest of Asheboro) 1170Dqd Blue Ridge Belt Blue Ridge Intrusive Rocks Intrusive Rocks Quartz diorite to granodiorite Phanerozioc Paleozoic Devonian 390 4 7 2.34358162892e+004 1.78417376410e+007Contains biotite, muscovite, and xenocrysts. Includes Whiteside Mountain, Stone Mountain, Mount Airy, Spruce Pine, and other smaller plutons 1171Tt Coastal Plain Coastal Plain Tertiary Sedimentary Rocks Terrace deposites and upland sediment Phanerozioc Cenozoic Tertiary none none 12 4.68008616183e+004 3.03653258466e+007Gravel, clayey sand, and sand, minor iron-oxide cemented sandstone 1183CZfv Eastern Slate Belt Eastern Slate Belt Metamorphic rocks Metamorphic Rocks Felsic metavolcanic rock Proterozoic-PhanerozoicLater Proterozoic-PaleozoicLate Proterozoic-Cambriannone none 6 1.92903445067e+003 2.54728327869e+005Metamorphosed dacitic to rhyolitic flows and tuffs, light gray to greenish gray; interbedded with mafic and intermediate metavolcanic rock, meta-argillite, and metamudstone 1184CZms Inner Piedmont, Chauga Belt, Smith River Allochthon, and Sauratown MountainInner Piedmont Metamorphic rocks Metamorphic Rocks Mica schist Proterozoic-PhanerozoicLater Proterozoic-PaleozoicLate Proterozoic-Cambriannone none 14 3.29911188547e+004 1.22208265975e+007Garnet, staurolite, kyanite, or sillimanite occur locally; lenses and layers of quartz schist, micaceous quartzite, calc-silicate rock, biotite gneiss, amphibolite, and phyllite 1186CZfv Eastern Slate Belt Eastern Slate Belt Metamorphic rocks Metamorphic Rocks Felsic metavolcanic rock Proterozoic-PhanerozoicLater Proterozoic-PaleozoicLate Proterozoic-Cambriannone none 6 2.58426084424e+003 4.54716140901e+005Metamorphosed dacitic to rhyolitic flows and tuffs, light gray to greenish gray; interbedded with mafic and intermediate metavolcanic rock, meta-argillite, and metamudstone 1185Zb Murphy Belt Murphy Belt Metamorphic rocks Metamorphic Rocks Brasstown Formation Proterozoic Late Proterozoic Late Proterozoic none none 3 1.75361904649e+005 1.67151486640e+008Cross-biotite schist; includes micaceous quartzite in lower part 1187Jd Triassic Basins Durham-Sanford Subbasins Intrusive Rocks Intrusive Rocks Diabase Phanerozioc Mesozoic Jurassic none none 1 2.08156976452e+003 2.74648073666e+005Dikes, gray to black 1188PzZu Blue Ridge Belt Blue Ridge Intrusive Rocks Intrusive Rocks Meta-ultramafic rock Phanerozioc Paleozoic Permian none none 5 2.81702594804e+003 3.20446234026e+005Metamorphosed dunite, local peridotite; serpentinite, soapstone, and other altered ultramafic rock. Only larger bodies shown 1189Tpy Coastal Plain Coastal Plain Tertiary Sedimentary Rocks Yorktown Formation and Duplin Formation, Undivided Phanerozioc Cenozoic Tertiary none none 10 6.38724487447e+003 3.05800734723e+006Yorktown Formation: Fossiliferous clay with varying amounts of fine-grained sand, bluish gray, shell material commonly concentrated in lenses; mainly in area north of Neuse River. Duplin Formation: Shelly, medium- to coarse-grained sand, sandy marl, and limestone, bluish gray; mainly in area south of Neuse River 1190OCg Inner Piedmont, Chauga Belt, Smith River Allochthon, and Sauratown MountainInner Piedmont Intrusive Rocks Intrusive Rocks Metamorphosed granitic rock Phanerozioc Paleozoic Cambrian-Ordovician 455-540 10 5 1.97757675163e+004 7.67351708839e+006Equigranular to megacrystic, foliated to massive. Includes Toluca Granite 1191CZiv Carolina Slate Belt Carolina Slate Belt Metamorphic rocks Metamorphic Rocks Intermediate metavolcanic rock Proterozoic-PhanerozoicLater Proterozoic-PaleozoicLate Proterozoic-Cambriannone none 5 2.00686606247e+004 1.65352393977e+007Metamorphosed andesitic tuffs and flows, medium to dark grayish green; minor felsic and mafic metavolcanic rock 1192OCg Inner Piedmont, Chauga Belt, Smith River Allochthon, and Sauratown MountainInner Piedmont Intrusive Rocks Intrusive Rocks Metamorphosed granitic rock Phanerozioc Paleozoic Cambrian-Ordovician 455-540 10 5 1.69003090859e+004 4.30527945771e+006Equigranular to megacrystic, foliated to massive. Includes Toluca Granite 1193DOg Charlotte and Milton Belts Charlotte Belt Intrusive Rocks Intrusive Rocks Granitic rock Phanerozioc Paleozoic Ordovician-Devonian none none 7 3.65661716964e+004 4.51341758034e+007Locally pinkish gray, massive to weakly foliated; contains hornblende 1194Qp Coastal Plain Coastal Plain Quaternary Surficial deposits Surficial deposits, undivided Phanerozioc Cenozoic Quaternary none none 14 2.51804537824e+003 3.01776328466e+005Sand, clay, gravel, and peat deposited in marine, fluvial, eolian, and lacustrine environments. Quaternary deposits not shown at altitudes greater than approximately 25 feet above mean sea level (Suffolk Scarp, in part) 1195DSg Charlotte and Milton Belts Charlotte Belt Intrusive Rocks Intrusive Rocks Granite of Salisbury Plutonic Suite Phanerozioc Paleozoic Silurian-Devonian 385-415 5 10 7.32848405091e+003 3.82380410174e+006Pink, massive to weakly foliated. Gold Hill, Kannapolis, Salisbury, Southmont, and Yadkin intrusives 1196CZq Charlotte and Milton Belts Charlotte Belt Metamorphic rocks Metamorphic Rocks Quartzite Proterozoic-PhanerozoicLater Proterozoic-PaleozoicLate Proterozoic-Cambriannone none 10 8.97096144387e+003 3.94416058230e+006Massive to well foliated; contains andalusite, kyanite, or sillimanite, chloritoid, and pyrite 1197Tt Coastal Plain Coastal Plain Tertiary Sedimentary Rocks Terrace deposites and upland sediment Phanerozioc Cenozoic Tertiary none none 12 9.82279790846e+003 4.52911121376e+006Gravel, clayey sand, and sand, minor iron-oxide cemented sandstone 1198PzZu Blue Ridge Belt Blue Ridge Intrusive Rocks Intrusive Rocks Meta-ultramafic rock Phanerozioc Paleozoic Permian none none 5 9.62260197079e+002 6.13880368316e+004Metamorphosed dunite, local peridotite; serpentinite, soapstone, and other altered ultramafic rock. Only larger bodies shown 1199TRcs Triassic Basins Durham-Sanford Subbasins Chatham Group Sedimentary Rocks Sanford Formation Phanerozioc Mesozoic Triassic none none 3 8.35458064757e+003 4.46899586720e+006Conglomerate, fanglomerate, sandstone, and mudstone 1200CZv Charlotte and Milton Belts Charlotte Belt Metamorphic rocks Metamorphic Rocks Metavolcanic rock Proterozoic-PhanerozoicLater Proterozoic-PaleozoicLate Proterozoic-Cambriannone none 5 1.96086721911e+004 9.81911899167e+006Interbedded felsic to mafic tuffs and flowrock 1201DOgb Charlotte and Milton Belts Charlotte Belt Intrusive Rocks Intrusive Rocks Gabbro of Concord Plutonic Suite Phanerozioc Paleozoic Ordovician-Devonian none none 8 2.30545860241e+004 2.51575286884e+007Barber, Concord, Farmington, Mecklenburg, and Weddington intrusives 1202CZph Eastern Slate Belt Eastern Slate Belt Metamorphic rocks Metamorphic Rocks Phyllite and schist Proterozoic-PhanerozoicLater Proterozoic-PaleozoicLate Proterozoic-Cambriannone none 1 2.24418579619e+003 3.63913466178e+005Minor biotite and pyrite; includes phyllonite, sheared fine-grained metasediment, and metavolcanic rock 1203DOgb Charlotte and Milton Belts Charlotte Belt Intrusive Rocks Intrusive Rocks Gabbro of Concord Plutonic Suite Phanerozioc Paleozoic Ordovician-Devonian 399-479 24 8 7.03848879295e+003 2.18826103204e+006Barber, Concord, Farmington, Mecklenburg, and Weddington intrusives 1204DOgb Charlotte and Milton Belts Charlotte Belt Intrusive Rocks Intrusive Rocks Gabbro of Concord Plutonic Suite Phanerozioc Paleozoic Ordovician-Devonian 399-479 24 8 5.19541055438e+003 1.54201067706e+006Barber, Concord, Farmington, Mecklenburg, and Weddington intrusives 1205PzZu Blue Ridge Belt Blue Ridge Intrusive Rocks Intrusive Rocks Meta-ultramafic rock Phanerozioc Paleozoic Permian none none 5 1.11877204599e+003 8.32490398096e+004Metamorphosed dunite, local peridotite; serpentinite, soapstone, and other altered ultramafic rock. Only larger bodies shown 1206DSs Charlotte and Milton Belts Charlotte Belt Intrusive Rocks Intrusive Rocks Syenite of Concord Plutonic Suite Phanerozioc Paleozoic Silurian-Devonian 404 9 9 5.21037715785e+004 3.23241169109e+007Includes the Concord ring dike 1207Zatb Blue Ridge Belt Blue Ridge Ashe Metamorphic Suite and Tallulah Falls FormationSedimentary and Metamorphic RocksBiotite gneiss Proterozoic Late Proterozoic Late Proterozoic none none 11 7.24862535353e+005 5.83202052222e+008Interlayered with biotite-garnet gneiss, biotite-muscovite schist, garnet-mica schist, and amphibolite 1208Km Coastal Plain Coastal Plain Cretaceous Sedimentary Rocks Middendorf Formation Phanerozioc Mesozoic Cretaceous none none 2 2.63364056425e+003 5.28459727688e+005Sand, sandstone, and mudstone, gray to pale gray with an orange cast, mottled; clay balls and iron-cemented concretions common, beds laterally discontinous, cross-bedding common 1209CZfv Eastern Slate Belt Eastern Slate Belt Metamorphic rocks Metamorphic Rocks Felsic metavolcanic rock Proterozoic-PhanerozoicLater Proterozoic-PaleozoicLate Proterozoic-Cambriannone none 6 6.08066055952e+003 1.01191605344e+006Metamorphosed dacitic to rhyolitic flows and tuffs, light gray to greenish gray; interbedded with mafic and intermediate metavolcanic rock, meta-argillite, and metamudstone 1210Zd Blue Ridge Belt Blue Ridge Ocoee Supergroup Sedimentary and Metamorphic RocksDean Formation Proterozoic Late Proterozoic Late Proterozoic none none 33 1.86174213312e+005 1.16834081836e+008Sericite schist with cross-biotite, staurolite, and garnet porphyroblasts; interbedded metagraywacke and quartz-pebble metaconglomerate 1211Tec Coastal Plain Coastal Plain Tertiary Sedimentary Rocks Comfort Member and New Hanover Member, Undivided Phanerozioc Cenozoic Tertiary none none 6 4.54295539289e+005 2.20740062449e+009Comfort Member: Bryozoan-echinoid skeletal limestone, locally dolomitized, solution cavities common. New Hanover Member: Phosphate-pebble conglomerate, micritic, thin; restricted to basal part of Castle Hayne Formation in southeastern counties 1212PPmg Raleigh Belt Raleigh Belt Intrusive Rocks Intrusive Rocks Foliated to massive granitic rock Phanerozioc Paleozoic Pennsylvanian-Permian 270-320 4,22 4 1.66148618584e+004 7.84913536600e+006Megacrystic to equigranular. Rolesville suite, Wise and Lemon Springs (?) intrusives 1213CZph Raleigh Belt Raleigh Belt Metamorphic rocks Metamorphic Rocks Phyllite and schist Proterozoic-PhanerozoicLater Proterozoic-PaleozoicLate Proterozoic-Cambriannone none 1 3.77985349023e+003 7.01662743494e+005Minor biotite and pyrite; includes phyllonite, sheared fine-grained metasediment, and metavolcanic rock 1214CZbg Raleigh Belt Raleigh Belt Metamorphic rocks Metamorphic Rocks Biotite gneiss and schist Proterozoic-PhanerozoicLater Proterozoic-PaleozoicLate Proterozoic-Cambriannone none 6 3.71824799780e+004 1.85913980764e+007Inequigranular and megacrystic; in places contains garnet; interlayered and gradational with mica schist and amphibolite; includes small masses of granitic rock 1215DOgb Charlotte and Milton Belts Charlotte Belt Intrusive Rocks Intrusive Rocks Gabbro of Concord Plutonic Suite Phanerozioc Paleozoic Ordovician-Devonian none none 8 2.68881634069e+004 4.95881438627e+007Barber, Concord, Farmington, Mecklenburg, and Weddington intrusives 1216CZfv Carolina Slate Belt Carolina Slate Belt Metamorphic rocks Metamorphic Rocks Felsic metavolcanic rock Proterozoic-PhanerozoicLater Proterozoic-PaleozoicLate Proterozoic-Cambriannone none 6 2.70347446401e+004 1.84765308138e+007Metamorphosed dacitic to rhyolitic flows and tuffs, light gray to greenish gray; interbedded with mafic and intermediate metavolcanic rock, meta-argillite, and metamudstone. CZfv2 - Cid Formation (southwest of Asheboro), CZfv1 - Uwharrie Formation (at Asheboro and to south) 1217CZbg Inner Piedmont, Chauga Belt, Smith River Allochthon, and Sauratown MountainInner Piedmont Metamorphic rocks Metamorphic Rocks Biotite gneiss and schist Proterozoic-PhanerozoicLater Proterozoic-PaleozoicLate Proterozoic-Cambriannone none 16 4.68646264362e+004 4.85757704916e+007Inequigranular, locally abundant potassic feldspar and garnet; interlayered and gradational with calc-silicate rock, sillimanite-mica schist, and amphibolite. Contains small masses of granitic rock 1218CZam Murphy Belt Murphy Belt Intrusive Rocks Intrusive Rocks Amphibolite Proterozoic-PhanerozoicLater Proterozoic-PaleozoicLate Proterozoic-Cambriannone none 1 6.34368651499e+003 8.90883147777e+005Equigranular, massive to well foliated, dioritic to basaltic dikes and sills; variably metamorphosed 1219CZtp Inner Piedmont, Chauga Belt, Smith River Allochthon, and Sauratown MountainInner Piedmont Metamorphic rocks Metamorphic Rocks Porphyroblastic gneiss Proterozoic-PhanerozoicLater Proterozoic-PaleozoicLate Proterozoic-Cambriannone none 3 1.03396077467e+004 3.29925385350e+006Massive to foliated, granodioritic, migmatitic 1220CZbg Inner Piedmont, Chauga Belt, Smith River Allochthon, and Sauratown MountainInner Piedmont Metamorphic rocks Metamorphic Rocks Biotite gneiss and schist Proterozoic-PhanerozoicLater Proterozoic-PaleozoicLate Proterozoic-Cambriannone none 16 8.97585429672e+004 6.80672130105e+007Inequigranular, locally abundant potassic feldspar and garnet; interlayered and gradational with calc-silicate rock, sillimanite-mica schist, and amphibolite. Contains small masses of granitic rock 1221CZms Inner Piedmont, Chauga Belt, Smith River Allochthon, and Sauratown MountainInner Piedmont Metamorphic rocks Metamorphic Rocks Mica schist Proterozoic-PhanerozoicLater Proterozoic-PaleozoicLate Proterozoic-Cambriannone none 14 8.31593602891e+003 1.52928770667e+006Garnet, staurolite, kyanite, or sillimanite occur locally; lenses and layers of quartz schist, micaceous quartzite, calc-silicate rock, biotite gneiss, amphibolite, and phyllite 1222CZg Charlotte and Milton Belts Charlotte Belt Intrusive Rocks Intrusive Rocks Metamorphosed granitic rock Proterozoic-PhanerozoicLater Proterozoic-PaleozoicLate Proterozoic-Cambriannone none 1 1.16212346583e+004 9.69901534449e+006Megacrystic, well foliated; locally contains hornblende 1223CZph Eastern Slate Belt Eastern Slate Belt Metamorphic rocks Metamorphic Rocks Phyllite and schist Proterozoic-PhanerozoicLater Proterozoic-PaleozoicLate Proterozoic-Cambriannone none 1 6.00787645081e+003 1.36050416710e+006Minor biotite and pyrite; includes phyllonite, sheared fine-grained metasediment, and metavolcanic rock 1224Kc Coastal Plain Coastal Plain Cretaceous Sedimentary Rocks Cape Fear Formation Phanerozioc Mesozoic Cretaceous none none 1 7.08832995889e+005 1.02590710911e+009Sandstone and sandy mudstone, yellowish gray to bluish gray, mottled red to yellowish orange, indurated, graded and laterally continuous bedding, blocky clay, faint cross-bedding, feldspar and mica common 1225Zman Murphy Belt Murphy Belt Metamorphic rocks Metamorphic Rocks Murphy Marble, Andrews Formation, and Nottely Quartzite, undividedProterozoic Late Proterozoic Late Proterozoic none none 4 1.46421173590e+005 3.69334374922e+007Murphy Marble: calcareous to dolomitic; Andrews Formation: calcarous cross-biotite schist; Nottely Quartzite: meta-orthoquartzite with slate 1226Zchs Blue Ridge Belt Blue Ridge Ocoee Supergroup Sedimentary and Metamorphic RocksSlate of Copper Hill Formation Proterozoic Late Proterozoic Late Proterozoic none none 29 1.27275511936e+004 3.23220979617e+006Slate to phyllite, dark gray, graphitic, sulfidic; includes metagraywacke with local graded bedding 1227CZv Charlotte and Milton Belts Charlotte Belt Metamorphic rocks Metamorphic Rocks Metavolcanic rock Proterozoic-PhanerozoicLater Proterozoic-PaleozoicLate Proterozoic-Cambriannone none 5 2.68368662251e+005 3.54506682620e+008Interbedded felsic to mafic tuffs and flowrock 1228Qp Coastal Plain Coastal Plain Quaternary Surficial deposits Surficial deposits, undivided Phanerozioc Cenozoic Quaternary none none 14 3.12892766396e+004 8.61287097297e+006Sand, clay, gravel, and peat deposited in marine, fluvial, eolian, and lacustrine environments. Quaternary deposits not shown at altitudes greater than approximately 25 feet above mean sea level (Suffolk Scarp, in part) 1229CZms Inner Piedmont, Chauga Belt, Smith River Allochthon, and Sauratown MountainInner Piedmont Metamorphic rocks Metamorphic Rocks Mica schist Proterozoic-PhanerozoicLater Proterozoic-PaleozoicLate Proterozoic-Cambriannone none 14 1.25769217268e+004 2.59024776175e+006Garnet, staurolite, kyanite, or sillimanite occur locally; lenses and layers of quartz schist, micaceous quartzite, calc-silicate rock, biotite gneiss, amphibolite, and phyllite 1230CZpg Inner Piedmont, Chauga Belt, Smith River Allochthon, and Sauratown MountainInner Piedmont Metamorphic rocks Metamorphic Rocks Inequigranular biotite gneiss Proterozoic-PhanerozoicLater Proterozoic-PaleozoicLate Proterozoic-Cambriannone none 4 2.56911983780e+004 1.71603930333e+007Weakly foliated to massive, contains plagioclase megacrysts and, rarely, larger megacrysts of quartz and feldspar 1231Qp Coastal Plain Coastal Plain Quaternary Surficial deposits Surficial deposits, undivided Phanerozioc Cenozoic Quaternary none none 14 1.36182745388e+003 1.36866312256e+005Sand, clay, gravel, and peat deposited in marine, fluvial, eolian, and lacustrine environments. Quaternary deposits not shown at altitudes greater than approximately 25 feet above mean sea level (Suffolk Scarp, in part) 1232CZmv Carolina Slate Belt Carolina Slate Belt Metamorphic rocks Metamorphic Rocks Mafic metavolcanic rock Proterozoic-PhanerozoicLater Proterozoic-PaleozoicLate Proterozoic-Cambriannone none 7 9.30908187322e+003 2.27798199835e+006Metamorphosed basaltic flows and tuffs, dark green to black; interbedded with felsic and intermediate metavolcanic rock and metamudstone. CZmv1 - Cid Formation (southwest of Asheboro) 1233Zchs Blue Ridge Belt Blue Ridge Ocoee Supergroup Sedimentary and Metamorphic RocksSlate of Copper Hill Formation Proterozoic Late Proterozoic Late Proterozoic none none 29 1.22073387407e+004 4.01572256612e+006Slate to phyllite, dark gray, graphitic, sulfidic; includes metagraywacke with local graded bedding 1234CZfv Eastern Slate Belt Eastern Slate Belt Metamorphic rocks Metamorphic Rocks Felsic metavolcanic rock Proterozoic-PhanerozoicLater Proterozoic-PaleozoicLate Proterozoic-Cambriannone none 6 2.51744779590e+004 1.23383170310e+007Metamorphosed dacitic to rhyolitic flows and tuffs, light gray to greenish gray; interbedded with mafic and intermediate metavolcanic rock, meta-argillite, and metamudstone 1235CZab Inner Piedmont, Chauga Belt, Smith River Allochthon, and Sauratown MountainInner Piedmont Metamorphic rocks Metamorphic Rocks Amphibolite and biotite gneiss Proterozoic-PhanerozoicLater Proterozoic-PaleozoicLate Proterozoic-Cambriannone none 13 2.81104968616e+004 1.12576525321e+007Interlayered; minor layers and lenses of hornblende gneiss, metagabbro, mica schist, and granitic rock 1236CZph Eastern Slate Belt Eastern Slate Belt Metamorphic rocks Metamorphic Rocks Phyllite and schist Proterozoic-PhanerozoicLater Proterozoic-PaleozoicLate Proterozoic-Cambriannone none 1 1.29237434780e+004 3.88492138479e+006Minor biotite and pyrite; includes phyllonite, sheared fine-grained metasediment, and metavolcanic rock 1237CZmd Carolina Slate Belt Carolina Slate Belt Metamorphic rocks Metamorphic Rocks Metamudstone and meta-argillite Proterozoic-PhanerozoicLater Proterozoic-PaleozoicLate Proterozoic-Cambriannone none 8 1.68023807631e+004 6.91989312782e+006Thin to thick bedded; bedding plane and axial-planar cleavage common; interbedded with metasandstone, metaconglomerate, and metavolcanic rock. CZmd3 - Floyd Church Formation, CZmd2 - Cid Formation, CZmd1 - Tillery Formation: (southwest of Asheboro) 1238CZtp Inner Piedmont, Chauga Belt, Smith River Allochthon, and Sauratown MountainInner Piedmont Metamorphic rocks Metamorphic Rocks Porphyroblastic gneiss Proterozoic-PhanerozoicLater Proterozoic-PaleozoicLate Proterozoic-Cambriannone none 3 6.21268169703e+004 6.56076919952e+007Massive to foliated, granodioritic, migmatitic 1239CZbg Inner Piedmont, Chauga Belt, Smith River Allochthon, and Sauratown MountainInner Piedmont Metamorphic rocks Metamorphic Rocks Biotite gneiss and schist Proterozoic-PhanerozoicLater Proterozoic-PaleozoicLate Proterozoic-Cambriannone none 16 8.40848074208e+004 3.76664021362e+007Inequigranular, locally abundant potassic feldspar and garnet; interlayered and gradational with calc-silicate rock, sillimanite-mica schist, and amphibolite. Contains small masses of granitic rock 1240Zmb Murphy Belt Murphy Belt Metamorphic rocks Metamorphic Rocks Mineral Bluff Formation Proterozoic Late Proterozoic Late Proterozoic none none 5 1.43399305974e+005 1.92296992172e+008Quartz-chlorite-sericite schist and phyllite with thin quartzite layers and minor interbedded graphitic schist, garnet-mica schist, staurolite schist, cross-biotite schist, and dark slate 1241CZfv Charlotte and Milton Belts Charlotte Belt Metamorphic rocks Metamorphic Rocks Felsic metavolcanic rock Proterozoic-PhanerozoicLater Proterozoic-PaleozoicLate Proterozoic-Cambriannone none 3 5.87261391828e+004 5.13154447005e+007Metamorphosed dacitic to rhyolitic flows and tuffs, light gray to greenish gray; minor mafic and intermediate metavolcanic rock 1242Tpa Coastal Plain Coastal Plain Tertiary Sedimentary Rocks Beaufort Formation, Undivided Phanerozioc Cenozoic Tertiary none none 5 1.02095926979e+004 6.97544710327e+006Unnamed upper member: Sand and silty clay, glauconitic, fossiliferous, and locally calcareous. Jericho Run Member: Siliceous mudstone with sandstone lenses, thin bedded; basal phosphatic pebble conglomerate 1243Qp Coastal Plain Coastal Plain Quaternary Surficial deposits Surficial deposits, undivided Phanerozioc Cenozoic Quaternary none none 14 3.21028010696e+003 4.11722699203e+005Sand, clay, gravel, and peat deposited in marine, fluvial, eolian, and lacustrine environments. Quaternary deposits not shown at altitudes greater than approximately 25 feet above mean sea level (Suffolk Scarp, in part) 1244PzZm Charlotte and Milton Belts Charlotte Belt Intrusive Rocks Intrusive Rocks Metamorphosed mafic rock Phanerozioc Paleozoic Permian none none 3 4.71162134678e+004 3.63256268049e+007Metagabbro, metadiorite, and mafic plutonic-volcanic complexes 1245Dqd Blue Ridge Belt Blue Ridge Intrusive Rocks Intrusive Rocks Quartz diorite to granodiorite Phanerozioc Paleozoic Devonian 390 4 7 4.94906109680e+003 5.94873060816e+005Contains biotite, muscovite, and xenocrysts. Includes Whiteside Mountain, Stone Mountain, Mount Airy, Spruce Pine, and other smaller plutons 1246Zbg Blue Ridge Belt Blue Ridge Ocoee Supergroup Sedimentary and Metamorphic RocksBoyd Gap Formation Proterozoic Late Proterozoic Late Proterozoic none none 26 3.07241052189e+004 3.91349960848e+007Dark gray, highly-sulfidic slate and metasiltstone interbedded and gradational with metagraywacke. Stratigraphic position uncertain. In Cherokee County includes upper part of Buck Bald Formation 1247CZab Inner Piedmont, Chauga Belt, Smith River Allochthon, and Sauratown MountainInner Piedmont Metamorphic rocks Metamorphic Rocks Amphibolite and biotite gneiss Proterozoic-PhanerozoicLater Proterozoic-PaleozoicLate Proterozoic-Cambriannone none 13 2.78032848200e+004 2.07735641483e+007Interlayered; minor layers and lenses of hornblende gneiss, metagabbro, mica schist, and granitic rock 1248Dqd Blue Ridge Belt Blue Ridge Intrusive Rocks Intrusive Rocks Quartz diorite to granodiorite Phanerozioc Paleozoic Devonian 390 4 7 1.48279393453e+005 6.43254483896e+007Contains biotite, muscovite, and xenocrysts. Includes Whiteside Mountain, Stone Mountain, Mount Airy, Spruce Pine, and other smaller plutons 1249Qp Coastal Plain Coastal Plain Quaternary Surficial deposits Surficial deposits, undivided Phanerozioc Cenozoic Quaternary none none 14 2.02662429463e+003 2.85573204134e+005Sand, clay, gravel, and peat deposited in marine, fluvial, eolian, and lacustrine environments. Quaternary deposits not shown at altitudes greater than approximately 25 feet above mean sea level (Suffolk Scarp, in part) 1250Qp Coastal Plain Coastal Plain Quaternary Surficial deposits Surficial deposits, undivided Phanerozioc Cenozoic Quaternary none none 14 9.98363275905e+003 1.72924236651e+006Sand, clay, gravel, and peat deposited in marine, fluvial, eolian, and lacustrine environments. Quaternary deposits not shown at altitudes greater than approximately 25 feet above mean sea level (Suffolk Scarp, in part) 1251PzZu Blue Ridge Belt Blue Ridge Intrusive Rocks Intrusive Rocks Meta-ultramafic rock Phanerozioc Paleozoic Permian none none 5 2.44922453563e+003 3.59720118006e+005Metamorphosed dunite, local peridotite; serpentinite, soapstone, and other altered ultramafic rock. Only larger bodies shown 1252Dqd Blue Ridge Belt Blue Ridge Intrusive Rocks Intrusive Rocks Quartz diorite to granodiorite Phanerozioc Paleozoic Devonian 390 4 7 4.28446184693e+003 7.96855717623e+005Contains biotite, muscovite, and xenocrysts. Includes Whiteside Mountain, Stone Mountain, Mount Airy, Spruce Pine, and other smaller plutons 1253CZfv Carolina Slate Belt Carolina Slate Belt Metamorphic rocks Metamorphic Rocks Felsic metavolcanic rock Proterozoic-PhanerozoicLater Proterozoic-PaleozoicLate Proterozoic-Cambriannone none 6 7.11752078441e+003 1.69157691771e+006Metamorphosed dacitic to rhyolitic flows and tuffs, light gray to greenish gray; interbedded with mafic and intermediate metavolcanic rock, meta-argillite, and metamudstone. CZfv2 - Cid Formation (southwest of Asheboro), CZfv1 - Uwharrie Formation (at Asheboro and to south) 1254TRcc Triassic Basins Durham-Sanford Subbasins Chatham Group Sedimentary Rocks Cumnock Formation Phanerozioc Mesozoic Triassic none none 2 5.02265183401e+003 9.14402481235e+005Sandstone and mudstone, gray to black; coal beds and carbonaceous shale. Grades into Pekin and Sanford formations 1255CZph Raleigh Belt Raleigh Belt Metamorphic rocks Metamorphic Rocks Phyllite and schist Proterozoic-PhanerozoicLater Proterozoic-PaleozoicLate Proterozoic-Cambriannone none 1 5.61015644804e+004 1.93674442982e+007Minor biotite and pyrite; includes phyllonite, sheared fine-grained metasediment, and metavolcanic rock 1266Kb Coastal Plain Coastal Plain Cretaceous Sedimentary Rocks Black Creek Formation Phanerozioc Mesozoic Cretaceous none none 3 2.18280128942e+003 1.97290408785e+005Clay, gray to black, lignitic; contains thin beds and laminae of fine-grained micaceous sand and thick lenses of cross-bedded sand. Glauconitic, fossiliferous clayey sand lenses in upper part 1267PzZm Charlotte and Milton Belts Charlotte Belt Intrusive Rocks Intrusive Rocks Metamorphosed mafic rock Phanerozioc Paleozoic Permian none none 3 5.60510961547e+003 2.31246015399e+006Metagabbro, metadiorite, and mafic plutonic-volcanic complexes 1268TRcs Triassic Basins Durham-Sanford Subbasins Chatham Group Sedimentary Rocks Sanford Formation Phanerozioc Mesozoic Triassic none none 3 2.11997269039e+003 3.03734607616e+005Conglomerate, fanglomerate, sandstone, and mudstone 1269Tt Coastal Plain Coastal Plain Tertiary Sedimentary Rocks Terrace deposites and upland sediment Phanerozioc Cenozoic Tertiary none none 12 5.98031996865e+003 1.36286482327e+006Gravel, clayey sand, and sand, minor iron-oxide cemented sandstone 1270Tpy Coastal Plain Coastal Plain Tertiary Sedimentary Rocks Yorktown Formation and Duplin Formation, Undivided Phanerozioc Cenozoic Tertiary none none 10 1.48486624044e+004 1.33550088645e+007Yorktown Formation: Fossiliferous clay with varying amounts of fine-grained sand, bluish gray, shell material commonly concentrated in lenses; mainly in area north of Neuse River. Duplin Formation: Shelly, medium- to coarse-grained sand, sandy marl, and limestone, bluish gray; mainly in area south of Neuse River 1271Km Coastal Plain Coastal Plain Cretaceous Sedimentary Rocks Middendorf Formation Phanerozioc Mesozoic Cretaceous none none 2 3.25388819077e+003 6.11603036375e+005Sand, sandstone, and mudstone, gray to pale gray with an orange cast, mottled; clay balls and iron-cemented concretions common, beds laterally discontinous, cross-bedding common 1272CZms Inner Piedmont, Chauga Belt, Smith River Allochthon, and Sauratown MountainInner Piedmont Metamorphic rocks Metamorphic Rocks Mica schist Proterozoic-PhanerozoicLater Proterozoic-PaleozoicLate Proterozoic-Cambriannone none 14 1.60563752125e+004 3.75247456334e+006Garnet, staurolite, kyanite, or sillimanite occur locally; lenses and layers of quartz schist, micaceous quartzite, calc-silicate rock, biotite gneiss, amphibolite, and phyllite 1273TRcc Triassic Basins Durham-Sanford Subbasins Chatham Group Sedimentary Rocks Cumnock Formation Phanerozioc Mesozoic Triassic none none 2 9.20148782500e+003 1.83969538039e+006Sandstone and mudstone, gray to black; coal beds and carbonaceous shale. Grades into Pekin and Sanford formations 1274CZv Charlotte and Milton Belts Charlotte Belt Metamorphic rocks Metamorphic Rocks Metavolcanic rock Proterozoic-PhanerozoicLater Proterozoic-PaleozoicLate Proterozoic-Cambriannone none 5 2.27486838615e+004 2.73481419350e+007Interbedded felsic to mafic tuffs and flowrock 1275OCg Inner Piedmont, Chauga Belt, Smith River Allochthon, and Sauratown MountainInner Piedmont Intrusive Rocks Intrusive Rocks Metamorphosed granitic rock Phanerozioc Paleozoic Cambrian-Ordovician 455-540 10 5 8.26151762525e+004 5.28955640913e+007Equigranular to megacrystic, foliated to massive. Includes Toluca Granite 1276Mc Inner Piedmont, Chauga Belt, Smith River Allochthon, and Sauratown MountainInner Piedmont Intrusive Rocks Intrusive Rocks Cherryville Granite Phanerozioc Paleozoic Mississippian 351 20,21 9 1.01114896806e+005 1.02687198327e+008Massive to weakly foliated, contains pegmatites, lithium-bearing on east side 1277Dqd Blue Ridge Belt Blue Ridge Intrusive Rocks Intrusive Rocks Quartz diorite to granodiorite Phanerozioc Paleozoic Devonian 390 4 7 1.38798011415e+004 5.17217774889e+006Contains biotite, muscovite, and xenocrysts. Includes Whiteside Mountain, Stone Mountain, Mount Airy, Spruce Pine, and other smaller plutons 1279Qp Coastal Plain Coastal Plain Quaternary Surficial deposits Surficial deposits, undivided Phanerozioc Cenozoic Quaternary none none 14 1.67143446804e+003 1.51301706438e+005Sand, clay, gravel, and peat deposited in marine, fluvial, eolian, and lacustrine environments. Quaternary deposits not shown at altitudes greater than approximately 25 feet above mean sea level (Suffolk Scarp, in part) 1278Mc Kings Mountain Belt Kings Mountain Belt Intrusive Rocks Intrusive Rocks Cherryville Granite Phanerozioc Paleozoic Mississippian 351 20,21 2 1.35782689030e+004 9.41715004078e+006Massive to weakly foliated; contains pegmatites 1280Dqd Blue Ridge Belt Blue Ridge Intrusive Rocks Intrusive Rocks Quartz diorite to granodiorite Phanerozioc Paleozoic Devonian 390 4 7 5.99354708264e+004 4.43362725204e+007Contains biotite, muscovite, and xenocrysts. Includes Whiteside Mountain, Stone Mountain, Mount Airy, Spruce Pine, and other smaller plutons 1281PzZm Charlotte and Milton Belts Charlotte Belt Intrusive Rocks Intrusive Rocks Metamorphosed mafic rock Phanerozioc Paleozoic Permian none none 3 2.10175748626e+004 2.00417335100e+007Metagabbro, metadiorite, and mafic plutonic-volcanic complexes 1282SOgg Inner Piedmont, Chauga Belt, Smith River Allochthon, and Sauratown MountainChauga Belt Intrusive Rocks Intrusive Rocks Granite gneiss Phanerozioc Paleozoic Ordovician-Silurian 438 17 7 7.47221987717e+003 1.35722686365e+006Poorly foliated; interlayered with biotite augen gneiss 1283CZgmsInner Piedmont, Chauga Belt, Smith River Allochthon, and Sauratown MountainInner Piedmont Metamorphic rocks Metamorphic Rocks Garnet-mica schist Proterozoic-PhanerozoicLater Proterozoic-PaleozoicLate Proterozoic-Cambriannone none 2 9.45563678017e+004 7.68824983585e+007Interlayered with amphibolite 1284DSs Charlotte and Milton Belts Charlotte Belt Intrusive Rocks Intrusive Rocks Syenite of Concord Plutonic Suite Phanerozioc Paleozoic Silurian-Devonian 404 9 9 8.59910283190e+003 1.96654562991e+006Includes the Concord ring dike 1285PzZq Kings Mountain Belt Kings Mountain Belt Intrusive Rocks Intrusive Rocks Metamorphosed quartz diorite Phanerozioc Paleozoic Permian none none 1 3.58400147763e+004 1.61971541417e+007Foliated to massive 1286Tpa Coastal Plain Coastal Plain Tertiary Sedimentary Rocks Beaufort Formation, Undivided Phanerozioc Cenozoic Tertiary none none 5 4.02655490489e+004 2.54446913269e+007Unnamed upper member: Sand and silty clay, glauconitic, fossiliferous, and locally calcareous. Jericho Run Member: Siliceous mudstone with sandstone lenses, thin bedded; basal phosphatic pebble conglomerate 1287Kc Coastal Plain Coastal Plain Cretaceous Sedimentary Rocks Cape Fear Formation Phanerozioc Mesozoic Cretaceous none none 1 3.36148270868e+003 5.26478172462e+005Sandstone and sandy mudstone, yellowish gray to bluish gray, mottled red to yellowish orange, indurated, graded and laterally continuous bedding, blocky clay, faint cross-bedding, feldspar and mica common 1288Tpy Coastal Plain Coastal Plain Tertiary Sedimentary Rocks Yorktown Formation and Duplin Formation, Undivided Phanerozioc Cenozoic Tertiary none none 10 5.63595050313e+003 1.95543594130e+006Yorktown Formation: Fossiliferous clay with varying amounts of fine-grained sand, bluish gray, shell material commonly concentrated in lenses; mainly in area north of Neuse River. Duplin Formation: Shelly, medium- to coarse-grained sand, sandy marl, and limestone, bluish gray; mainly in area south of Neuse River 1289SOgg Inner Piedmont, Chauga Belt, Smith River Allochthon, and Sauratown MountainChauga Belt Intrusive Rocks Intrusive Rocks Granite gneiss Phanerozioc Paleozoic Ordovician-Silurian 438 17 7 8.75601569158e+004 6.37072207176e+007Poorly foliated; interlayered with biotite augen gneiss 1290Zwe Blue Ridge Belt Blue Ridge Ocoee Supergroup Sedimentary and Metamorphic RocksWehutty Formation Proterozoic Late Proterozoic Late Proterozoic none none 31 1.09186833479e+005 6.36004195095e+007Slate to schist, dark gray, graphitic and sulfidic; includes mica schist, metagraywacke, and metaconglomerate 1291CZq Charlotte and Milton Belts Charlotte Belt Metamorphic rocks Metamorphic Rocks Quartzite Proterozoic-PhanerozoicLater Proterozoic-PaleozoicLate Proterozoic-Cambriannone none 10 2.21580691580e+004 2.11358804940e+007Massive to well foliated; contains andalusite, kyanite, or sillimanite, chloritoid, and pyrite 1292DSg Charlotte and Milton Belts Charlotte Belt Intrusive Rocks Intrusive Rocks Granite of Salisbury Plutonic Suite Phanerozioc Paleozoic Silurian-Devonian 385-415 5 10 2.20620626349e+004 1.41958430232e+007Pink, massive to weakly foliated. Gold Hill, Kannapolis, Salisbury, Southmont, and Yadkin intrusives 1293CZms Inner Piedmont, Chauga Belt, Smith River Allochthon, and Sauratown MountainInner Piedmont Metamorphic rocks Metamorphic Rocks Mica schist Proterozoic-PhanerozoicLater Proterozoic-PaleozoicLate Proterozoic-Cambriannone none 14 3.37979373078e+004 2.31444147565e+007Garnet, staurolite, kyanite, or sillimanite occur locally; lenses and layers of quartz schist, micaceous quartzite, calc-silicate rock, biotite gneiss, amphibolite, and phyllite 1294Zch Blue Ridge Belt Blue Ridge Ocoee Supergroup Sedimentary and Metamorphic RocksCopper Hill Formation Proterozoic Late Proterozoic Late Proterozoic none none 30 1.39812343640e+004 7.49971456188e+006Metagraywacke, massive, graded bedding common; includes dark-gray slate, mica schist, and nodular calcsilicate rock 1295CZv Charlotte and Milton Belts Charlotte Belt Metamorphic rocks Metamorphic Rocks Metavolcanic rock Proterozoic-PhanerozoicLater Proterozoic-PaleozoicLate Proterozoic-Cambriannone none 5 1.78696195258e+004 1.12320218783e+007Interbedded felsic to mafic tuffs and flowrock 1296OCg Inner Piedmont, Chauga Belt, Smith River Allochthon, and Sauratown MountainInner Piedmont Intrusive Rocks Intrusive Rocks Metamorphosed granitic rock Phanerozioc Paleozoic Cambrian-Ordovician 455-540 10 5 8.51755892820e+003 2.03927272254e+006Equigranular to megacrystic, foliated to massive. Includes Toluca Granite 1297CZms Inner Piedmont, Chauga Belt, Smith River Allochthon, and Sauratown MountainInner Piedmont Metamorphic rocks Metamorphic Rocks Mica schist Proterozoic-PhanerozoicLater Proterozoic-PaleozoicLate Proterozoic-Cambriannone none 14 4.99783301125e+004 7.85852484635e+007Garnet, staurolite, kyanite, or sillimanite occur locally; lenses and layers of quartz schist, micaceous quartzite, calc-silicate rock, biotite gneiss, amphibolite, and phyllite 1298DOgb Charlotte and Milton Belts Charlotte Belt Intrusive Rocks Intrusive Rocks Gabbro of Concord Plutonic Suite Phanerozioc Paleozoic Ordovician-Devonian none none 8 4.71322390188e+003 1.58567807263e+006Barber, Concord, Farmington, Mecklenburg, and Weddington intrusives 1299OCg Inner Piedmont, Chauga Belt, Smith River Allochthon, and Sauratown MountainInner Piedmont Intrusive Rocks Intrusive Rocks Metamorphosed granitic rock Phanerozioc Paleozoic Cambrian-Ordovician 455-540 10 5 1.97368099152e+004 7.64217048012e+006Equigranular to megacrystic, foliated to massive. Includes Toluca Granite 1300Qp Coastal Plain Coastal Plain Quaternary Surficial deposits Surficial deposits, undivided Phanerozioc Cenozoic Quaternary none none 14 1.00826375227e+003 7.61390589344e+004Sand, clay, gravel, and peat deposited in marine, fluvial, eolian, and lacustrine environments. Quaternary deposits not shown at altitudes greater than approximately 25 feet above mean sea level (Suffolk Scarp, in part) 1301Dqd Blue Ridge Belt Blue Ridge Intrusive Rocks Intrusive Rocks Quartz diorite to granodiorite Phanerozioc Paleozoic Devonian 390 4 7 5.87051788324e+003 1.08221368134e+006Contains biotite, muscovite, and xenocrysts. Includes Whiteside Mountain, Stone Mountain, Mount Airy, Spruce Pine, and other smaller plutons 1302CZms Inner Piedmont, Chauga Belt, Smith River Allochthon, and Sauratown MountainInner Piedmont Metamorphic rocks Metamorphic Rocks Mica schist Proterozoic-PhanerozoicLater Proterozoic-PaleozoicLate Proterozoic-Cambriannone none 14 5.54279168626e+003 1.18023716616e+006Garnet, staurolite, kyanite, or sillimanite occur locally; lenses and layers of quartz schist, micaceous quartzite, calc-silicate rock, biotite gneiss, amphibolite, and phyllite 1304Qp Coastal Plain Coastal Plain Quaternary Surficial deposits Surficial deposits, undivided Phanerozioc Cenozoic Quaternary none none 14 1.11303279763e+003 9.57527214781e+004Sand, clay, gravel, and peat deposited in marine, fluvial, eolian, and lacustrine environments. Quaternary deposits not shown at altitudes greater than approximately 25 feet above mean sea level (Suffolk Scarp, in part) 1303TRcs Triassic Basins Durham-Sanford Subbasins Chatham Group Sedimentary Rocks Sanford Formation Phanerozioc Mesozoic Triassic none none 3 9.74011703672e+003 3.01154024350e+006Conglomerate, fanglomerate, sandstone, and mudstone 1305CZq Charlotte and Milton Belts Charlotte Belt Metamorphic rocks Metamorphic Rocks Quartzite Proterozoic-PhanerozoicLater Proterozoic-PaleozoicLate Proterozoic-Cambriannone none 2 1.42633903117e+004 1.08921856180e+007Massive to well foliated; contains andalusite, kyanite, or sillimanite, chloritoid, and pyrite 1306DOgb Charlotte and Milton Belts Charlotte Belt Intrusive Rocks Intrusive Rocks Gabbro of Concord Plutonic Suite Phanerozioc Paleozoic Ordovician-Devonian none none 8 5.27501010813e+003 2.12275738563e+006Barber, Concord, Farmington, Mecklenburg, and Weddington intrusives 1307Tecs Coastal Plain Coastal Plain Tertiary Sedimentary Rocks Spring Garden Member-Castle Hayne Formation Phanerozioc Cenozoic Tertiary none none 7 5.57776285207e+004 1.16666896419e+008Molluscan-mold limestone, indurated, very sandy. Grades downward into a calcareous sand and laterally into Comfort Member 1308CZbg Inner Piedmont, Chauga Belt, Smith River Allochthon, and Sauratown MountainInner Piedmont Metamorphic rocks Metamorphic Rocks Biotite gneiss and schist Proterozoic-PhanerozoicLater Proterozoic-PaleozoicLate Proterozoic-Cambriannone none 16 2.10420159614e+004 4.80629942274e+006Inequigranular, locally abundant potassic feldspar and garnet; interlayered and gradational with calc-silicate rock, sillimanite-mica schist, and amphibolite. Contains small masses of granitic rock 1309Tp Coastal Plain Coastal Plain Tertiary Sedimentary Rocks Pinehurst Formation Phanerozioc Cenozoic Tertiary none none 13 3.41036305941e+005 1.21113783511e+008Sand, medium- to coarse-grained, crossbedding and rhythmic bands of clayey sand common, unconsolidated 1310CZms Inner Piedmont, Chauga Belt, Smith River Allochthon, and Sauratown MountainInner Piedmont Metamorphic rocks Metamorphic Rocks Mica schist Proterozoic-PhanerozoicLater Proterozoic-PaleozoicLate Proterozoic-Cambriannone none 14 6.02031337439e+004 2.91053218520e+007Garnet, staurolite, kyanite, or sillimanite occur locally; lenses and layers of quartz schist, micaceous quartzite, calc-silicate rock, biotite gneiss, amphibolite, and phyllite 1311Tec Coastal Plain Coastal Plain Tertiary Sedimentary Rocks Comfort Member and New Hanover Member, Undivided Phanerozioc Cenozoic Tertiary none none 6 8.24238789351e+003 4.48353603380e+006Comfort Member: Bryozoan-echinoid skeletal limestone, locally dolomitized, solution cavities common. New Hanover Member: Phosphate-pebble conglomerate, micritic, thin; restricted to basal part of Castle Hayne Formation in southeastern counties 1312CZbg Inner Piedmont, Chauga Belt, Smith River Allochthon, and Sauratown MountainInner Piedmont Metamorphic rocks Metamorphic Rocks Biotite gneiss and schist Proterozoic-PhanerozoicLater Proterozoic-PaleozoicLate Proterozoic-Cambriannone none 16 6.85563383591e+004 4.55122837592e+007Inequigranular, locally abundant potassic feldspar and garnet; interlayered and gradational with calc-silicate rock, sillimanite-mica schist, and amphibolite. Contains small masses of granitic rock 1313Dsc Inner Piedmont, Chauga Belt, Smith River Allochthon, and Sauratown MountainInner Piedmont Intrusive Rocks Intrusive Rocks Caesars Head Granitic Gniess Phanerozioc Paleozoic Devonian 409 13 8 4.30051767504e+004 2.77580416145e+007Equigranular to porphyritic, massive to well foliated; contains biotite and muscovite 1314DOg Charlotte and Milton Belts Charlotte Belt Intrusive Rocks Intrusive Rocks Granitic rock Phanerozioc Paleozoic Ordovician-Devonian none none 7 1.37802357963e+004 1.00915052997e+007Locally pinkish gray, massive to weakly foliated; contains hornblende 1315CZgmsInner Piedmont, Chauga Belt, Smith River Allochthon, and Sauratown MountainInner Piedmont Metamorphic rocks Metamorphic Rocks Garnet-mica schist Proterozoic-PhanerozoicLater Proterozoic-PaleozoicLate Proterozoic-Cambriannone none 2 5.89445009405e+004 1.55095932696e+007Interlayered with amphibolite 1316CZms Inner Piedmont, Chauga Belt, Smith River Allochthon, and Sauratown MountainInner Piedmont Metamorphic rocks Metamorphic Rocks Mica schist Proterozoic-PhanerozoicLater Proterozoic-PaleozoicLate Proterozoic-Cambriannone none 14 7.51319253771e+003 1.53252636336e+006Garnet, staurolite, kyanite, or sillimanite occur locally; lenses and layers of quartz schist, micaceous quartzite, calc-silicate rock, biotite gneiss, amphibolite, and phyllite 1317Tp Coastal Plain Coastal Plain Tertiary Sedimentary Rocks Pinehurst Formation Phanerozioc Cenozoic Tertiary none none 13 8.14373998853e+003 2.04047819206e+006Sand, medium- to coarse-grained, crossbedding and rhythmic bands of clayey sand common, unconsolidated 1318CZbg Inner Piedmont, Chauga Belt, Smith River Allochthon, and Sauratown MountainInner Piedmont Metamorphic rocks Metamorphic Rocks Biotite gneiss and schist Proterozoic-PhanerozoicLater Proterozoic-PaleozoicLate Proterozoic-Cambriannone none 16 4.00169375584e+004 4.57668983839e+007Inequigranular, locally abundant potassic feldspar and garnet; interlayered and gradational with calc-silicate rock, sillimanite-mica schist, and amphibolite. Contains small masses of granitic rock 1319CZve Carolina Slate Belt Carolina Slate Belt Metamorphic rocks Metamorphic Rocks Metavolcanic epi-clastic rock Proterozoic-PhanerozoicLater Proterozoic-PaleozoicLate Proterozoic-Cambriannone none 3 2.81461820556e+004 2.03853942847e+007Metamorphosed argillite, mudstone, volcanic sandstone, conglomerate, and volcanic rock 1320CZbg Inner Piedmont, Chauga Belt, Smith River Allochthon, and Sauratown MountainInner Piedmont Metamorphic rocks Metamorphic Rocks Biotite gneiss and schist Proterozoic-PhanerozoicLater Proterozoic-PaleozoicLate Proterozoic-Cambriannone none 16 7.10013515796e+004 3.24223938264e+007Inequigranular, locally abundant potassic feldspar and garnet; interlayered and gradational with calc-silicate rock, sillimanite-mica schist, and amphibolite. Contains small masses of granitic rock 1321DOg Charlotte and Milton Belts Charlotte Belt Intrusive Rocks Intrusive Rocks Granitic rock Phanerozioc Paleozoic Ordovician-Devonian none none 7 9.36290077552e+004 1.82764250646e+008Locally pinkish gray, massive to weakly foliated; contains hornblende 1322TRcs Triassic Basins Durham-Sanford Subbasins Chatham Group Sedimentary Rocks Sanford Formation Phanerozioc Mesozoic Triassic none none 3 3.66789415011e+004 1.57288922071e+007Conglomerate, fanglomerate, sandstone, and mudstone 1331CZms Inner Piedmont, Chauga Belt, Smith River Allochthon, and Sauratown MountainInner Piedmont Metamorphic rocks Metamorphic Rocks Mica schist Proterozoic-PhanerozoicLater Proterozoic-PaleozoicLate Proterozoic-Cambriannone none 14 1.72040252075e+004 4.88725149096e+006Garnet, staurolite, kyanite, or sillimanite occur locally; lenses and layers of quartz schist, micaceous quartzite, calc-silicate rock, biotite gneiss, amphibolite, and phyllite 1332CZmd Carolina Slate Belt Carolina Slate Belt Metamorphic rocks Metamorphic Rocks Metamudstone and meta-argillite Proterozoic-PhanerozoicLater Proterozoic-PaleozoicLate Proterozoic-Cambriannone none 8 3.29018892594e+004 1.72893290149e+007Thin to thick bedded; bedding plane and axial-planar cleavage common; interbedded with metasandstone, metaconglomerate, and metavolcanic rock. CZmd3 - Floyd Church Formation, CZmd2 - Cid Formation, CZmd1 - Tillery Formation: (southwest of Asheboro) 1333CZms Inner Piedmont, Chauga Belt, Smith River Allochthon, and Sauratown MountainInner Piedmont Metamorphic rocks Metamorphic Rocks Mica schist Proterozoic-PhanerozoicLater Proterozoic-PaleozoicLate Proterozoic-Cambriannone none 14 4.13160214151e+004 2.14992523700e+007Garnet, staurolite, kyanite, or sillimanite occur locally; lenses and layers of quartz schist, micaceous quartzite, calc-silicate rock, biotite gneiss, amphibolite, and phyllite 1334Tt Coastal Plain Coastal Plain Tertiary Sedimentary Rocks Terrace deposites and upland sediment Phanerozioc Cenozoic Tertiary none none 12 5.30069881222e+003 1.34753994536e+006Gravel, clayey sand, and sand, minor iron-oxide cemented sandstone 1335Dqd Blue Ridge Belt Blue Ridge Intrusive Rocks Intrusive Rocks Quartz diorite to granodiorite Phanerozioc Paleozoic Devonian 390 4 7 1.52609516288e+004 4.01407502496e+006Contains biotite, muscovite, and xenocrysts. Includes Whiteside Mountain, Stone Mountain, Mount Airy, Spruce Pine, and other smaller plutons 1336PzZq Kings Mountain Belt Kings Mountain Belt Intrusive Rocks Intrusive Rocks Metamorphosed quartz diorite Phanerozioc Paleozoic Permian none none 1 2.70860912187e+004 1.81985780249e+007Foliated to massive 1337Dqd Blue Ridge Belt Blue Ridge Intrusive Rocks Intrusive Rocks Quartz diorite to granodiorite Phanerozioc Paleozoic Devonian 390 4 7 3.57055708982e+004 1.58583026571e+007Contains biotite, muscovite, and xenocrysts. Includes Whiteside Mountain, Stone Mountain, Mount Airy, Spruce Pine, and other smaller plutons 1338CZiv Carolina Slate Belt Carolina Slate Belt Metamorphic rocks Metamorphic Rocks Intermediate metavolcanic rock Proterozoic-PhanerozoicLater Proterozoic-PaleozoicLate Proterozoic-Cambriannone none 5 2.65841478632e+004 1.83578720196e+007Metamorphosed andesitic tuffs and flows, medium to dark grayish green; minor felsic and mafic metavolcanic rock 1339PzZm Charlotte and Milton Belts Charlotte Belt Intrusive Rocks Intrusive Rocks Metamorphosed mafic rock Phanerozioc Paleozoic Permian none none 3 2.05229359661e+004 1.90544558605e+007Metagabbro, metadiorite, and mafic plutonic-volcanic complexes 1340Tec Coastal Plain Coastal Plain Tertiary Sedimentary Rocks Comfort Member and New Hanover Member, Undivided Phanerozioc Cenozoic Tertiary none none 6 1.16805828267e+004 8.62108566962e+006Comfort Member: Bryozoan-echinoid skeletal limestone, locally dolomitized, solution cavities common. New Hanover Member: Phosphate-pebble conglomerate, micritic, thin; restricted to basal part of Castle Hayne Formation in southeastern counties 1341TRc Triassic Basins Durham-Sanford Subbasins Newark Supergroup Sedimentary Rocks Chatham Group, Undivided Phanerozioc Mesozoic Triassic none none 4 7.01697729739e+004 3.25006847150e+007Conglomerate, fanglomerate, sandstone, and mudstone. Conglomerate and fanglomerate shown by pattern 1342Dsc Inner Piedmont, Chauga Belt, Smith River Allochthon, and Sauratown MountainInner Piedmont Intrusive Rocks Intrusive Rocks Caesars Head Granitic Gniess Phanerozioc Paleozoic Devonian 409 13 8 3.19948336850e+004 2.78622235728e+007Equigranular to porphyritic, massive to well foliated; contains biotite and muscovite 1343CZgmsInner Piedmont, Chauga Belt, Smith River Allochthon, and Sauratown MountainInner Piedmont Metamorphic rocks Metamorphic Rocks Garnet-mica schist Proterozoic-PhanerozoicLater Proterozoic-PaleozoicLate Proterozoic-Cambriannone none 2 1.10963650845e+004 5.81192067882e+006Interlayered with amphibolite 1344Zch Blue Ridge Belt Blue Ridge Ocoee Supergroup Sedimentary and Metamorphic RocksCopper Hill Formation Proterozoic Late Proterozoic Late Proterozoic none none 30 4.35562898538e+004 1.78403987090e+007Metagraywacke, massive, graded bedding common; includes dark-gray slate, mica schist, and nodular calcsilicate rock 1345CZph Eastern Slate Belt Eastern Slate Belt Metamorphic rocks Metamorphic Rocks Phyllite and schist Proterozoic-PhanerozoicLater Proterozoic-PaleozoicLate Proterozoic-Cambriannone none 1 5.46124032772e+003 1.20799778593e+006Minor biotite and pyrite; includes phyllonite, sheared fine-grained metasediment, and metavolcanic rock 1346ZYba Blue Ridge Belt Blue Ridge Sedimentary and Metamorphic Rocks Sedimentary and Metamorphic RocksAmphibolite Proterozoic Middle-Late Proterozoic Middle-Late Proterozoic none none 7 4.01626669869e+003 5.10932818938e+005Equigranular, massive to well foliated, interlayered, rarely discordant, metamorphosed intrusive and extrusive mafic rock; may include metasedimentary rock 1347Dqd Blue Ridge Belt Blue Ridge Intrusive Rocks Intrusive Rocks Quartz diorite to granodiorite Phanerozioc Paleozoic Devonian 390 4 7 8.38538665600e+003 1.40201302208e+006Contains biotite, muscovite, and xenocrysts. Includes Whiteside Mountain, Stone Mountain, Mount Airy, Spruce Pine, and other smaller plutons 1348ZYba Blue Ridge Belt Blue Ridge Sedimentary and Metamorphic Rocks Sedimentary and Metamorphic RocksAmphibolite Proterozoic Middle-Late Proterozoic Middle-Late Proterozoic none none 7 3.04198864353e+003 3.53909041267e+005Equigranular, massive to well foliated, interlayered, rarely discordant, metamorphosed intrusive and extrusive mafic rock; may include metasedimentary rock 1349CZph Eastern Slate Belt Eastern Slate Belt Metamorphic rocks Metamorphic Rocks Phyllite and schist Proterozoic-PhanerozoicLater Proterozoic-PaleozoicLate Proterozoic-Cambriannone none 1 2.66318166572e+004 1.10396666409e+007Minor biotite and pyrite; includes phyllonite, sheared fine-grained metasediment, and metavolcanic rock 1350PzZu Blue Ridge Belt Blue Ridge Intrusive Rocks Intrusive Rocks Meta-ultramafic rock Phanerozioc Paleozoic Permian none none 5 1.87661774109e+003 2.51673008420e+005Metamorphosed dunite, local peridotite; serpentinite, soapstone, and other altered ultramafic rock. Only larger bodies shown 1351Tp Coastal Plain Coastal Plain Tertiary Sedimentary Rocks Pinehurst Formation Phanerozioc Cenozoic Tertiary none none 13 2.27139736261e+005 8.87250802013e+007Sand, medium- to coarse-grained, crossbedding and rhythmic bands of clayey sand common, unconsolidated 1352PzZu Blue Ridge Belt Blue Ridge Intrusive Rocks Intrusive Rocks Meta-ultramafic rock Phanerozioc Paleozoic Permian none none 5 1.80253987140e+003 2.31393592244e+005Metamorphosed dunite, local peridotite; serpentinite, soapstone, and other altered ultramafic rock. Only larger bodies shown 1353Dqd Blue Ridge Belt Blue Ridge Intrusive Rocks Intrusive Rocks Quartz diorite to granodiorite Phanerozioc Paleozoic Devonian 390 4 7 1.11896402625e+005 9.60593913466e+007Contains biotite, muscovite, and xenocrysts. Includes Whiteside Mountain, Stone Mountain, Mount Airy, Spruce Pine, and other smaller plutons 1355OCg Inner Piedmont, Chauga Belt, Smith River Allochthon, and Sauratown MountainInner Piedmont Intrusive Rocks Intrusive Rocks Metamorphosed granitic rock Phanerozioc Paleozoic Cambrian-Ordovician 455-540 10 5 1.32370114005e+004 4.62999615591e+006Equigranular to megacrystic, foliated to massive. Includes Toluca Granite 1354ZYba Blue Ridge Belt Blue Ridge Sedimentary and Metamorphic Rocks Sedimentary and Metamorphic RocksAmphibolite Proterozoic Middle-Late Proterozoic Middle-Late Proterozoic none none 7 1.77787982103e+003 1.94130613266e+005Equigranular, massive to well foliated, interlayered, rarely discordant, metamorphosed intrusive and extrusive mafic rock; may include metasedimentary rock 1356ZYba Blue Ridge Belt Blue Ridge Sedimentary and Metamorphic Rocks Sedimentary and Metamorphic RocksAmphibolite Proterozoic Middle-Late Proterozoic Middle-Late Proterozoic none none 7 2.37813912253e+003 2.78262327986e+005Equigranular, massive to well foliated, interlayered, rarely discordant, metamorphosed intrusive and extrusive mafic rock; may include metasedimentary rock 1357TRc Triassic Basins Wadesboro Subbasin Newark Supergroup Sedimentary Rocks Chatham Group, Undivided Phanerozioc Mesozoic Triassic none none 4 2.79859002908e+005 8.30824214035e+008Conglomerate, fanglomerate, sandstone, and mudstone. Conglomerate and fanglomerate shown by pattern 1358PzZu Blue Ridge Belt Blue Ridge Intrusive Rocks Intrusive Rocks Meta-ultramafic rock Phanerozioc Paleozoic Permian none none 5 1.87474449989e+003 2.22999353342e+005Metamorphosed dunite, local peridotite; serpentinite, soapstone, and other altered ultramafic rock. Only larger bodies shown 1359ZYba Blue Ridge Belt Blue Ridge Sedimentary and Metamorphic Rocks Sedimentary and Metamorphic RocksAmphibolite Proterozoic Middle-Late Proterozoic Middle-Late Proterozoic none none 7 4.25369643386e+003 5.98379303504e+005Equigranular, massive to well foliated, interlayered, rarely discordant, metamorphosed intrusive and extrusive mafic rock; may include metasedimentary rock 1360OCg Inner Piedmont, Chauga Belt, Smith River Allochthon, and Sauratown MountainInner Piedmont Intrusive Rocks Intrusive Rocks Metamorphosed granitic rock Phanerozioc Paleozoic Cambrian-Ordovician 455-540 10 5 1.33613131577e+004 3.01464626428e+006Equigranular to megacrystic, foliated to massive. Includes Toluca Granite 1361ZYba Blue Ridge Belt Blue Ridge Sedimentary and Metamorphic Rocks Sedimentary and Metamorphic RocksAmphibolite Proterozoic Middle-Late Proterozoic Middle-Late Proterozoic none none 7 1.98414446159e+003 2.10295321305e+005Equigranular, massive to well foliated, interlayered, rarely discordant, metamorphosed intrusive and extrusive mafic rock; may include metasedimentary rock 1362PzZu Blue Ridge Belt Blue Ridge Intrusive Rocks Intrusive Rocks Meta-ultramafic rock Phanerozioc Paleozoic Permian none none 5 2.32058334696e+003 3.32639171010e+005Metamorphosed dunite, local peridotite; serpentinite, soapstone, and other altered ultramafic rock. Only larger bodies shown 1363Tec Coastal Plain Coastal Plain Tertiary Sedimentary Rocks Comfort Member and New Hanover Member, Undivided Phanerozioc Cenozoic Tertiary none none 6 8.27470873918e+003 3.90719303874e+006Comfort Member: Bryozoan-echinoid skeletal limestone, locally dolomitized, solution cavities common. New Hanover Member: Phosphate-pebble conglomerate, micritic, thin; restricted to basal part of Castle Hayne Formation in southeastern counties 1364Km Coastal Plain Coastal Plain Cretaceous Sedimentary Rocks Middendorf Formation Phanerozioc Mesozoic Cretaceous none none 2 5.27837882569e+003 1.39884067790e+006Sand, sandstone, and mudstone, gray to pale gray with an orange cast, mottled; clay balls and iron-cemented concretions common, beds laterally discontinous, cross-bedding common 1365OCg Inner Piedmont, Chauga Belt, Smith River Allochthon, and Sauratown MountainInner Piedmont Intrusive Rocks Intrusive Rocks Metamorphosed granitic rock Phanerozioc Paleozoic Cambrian-Ordovician 455-540 10 5 1.91141195161e+004 6.08414425463e+006Equigranular to megacrystic, foliated to massive. Includes Toluca Granite 1366Tpa Coastal Plain Coastal Plain Tertiary Sedimentary Rocks Beaufort Formation, Undivided Phanerozioc Cenozoic Tertiary none none 5 3.05367370805e+003 5.22817427390e+005Unnamed upper member: Sand and silty clay, glauconitic, fossiliferous, and locally calcareous. Jericho Run Member: Siliceous mudstone with sandstone lenses, thin bedded; basal phosphatic pebble conglomerate 1367ZYba Blue Ridge Belt Blue Ridge Sedimentary and Metamorphic Rocks Sedimentary and Metamorphic RocksAmphibolite Proterozoic Middle-Late Proterozoic Middle-Late Proterozoic none none 7 5.49497809230e+003 8.86724836390e+005Equigranular, massive to well foliated, interlayered, rarely discordant, metamorphosed intrusive and extrusive mafic rock; may include metasedimentary rock 1368CZms Inner Piedmont, Chauga Belt, Smith River Allochthon, and Sauratown MountainInner Piedmont Metamorphic rocks Metamorphic Rocks Mica schist Proterozoic-PhanerozoicLater Proterozoic-PaleozoicLate Proterozoic-Cambriannone none 14 1.96843386932e+004 9.03305840778e+006Garnet, staurolite, kyanite, or sillimanite occur locally; lenses and layers of quartz schist, micaceous quartzite, calc-silicate rock, biotite gneiss, amphibolite, and phyllite 1369Dqd Blue Ridge Belt Blue Ridge Intrusive Rocks Intrusive Rocks Quartz diorite to granodiorite Phanerozioc Paleozoic Devonian 390 4 7 5.69345059635e+004 1.52340748661e+007Contains biotite, muscovite, and xenocrysts. Includes Whiteside Mountain, Stone Mountain, Mount Airy, Spruce Pine, and other smaller plutons 1370Tec Coastal Plain Coastal Plain Tertiary Sedimentary Rocks Comfort Member and New Hanover Member, Undivided Phanerozioc Cenozoic Tertiary none none 6 5.95890426967e+003 1.95692520214e+006Comfort Member: Bryozoan-echinoid skeletal limestone, locally dolomitized, solution cavities common. New Hanover Member: Phosphate-pebble conglomerate, micritic, thin; restricted to basal part of Castle Hayne Formation in southeastern counties 1371CZph Eastern Slate Belt Eastern Slate Belt Metamorphic rocks Metamorphic Rocks Phyllite and schist Proterozoic-PhanerozoicLater Proterozoic-PaleozoicLate Proterozoic-Cambriannone none 1 4.74702009125e+003 1.19222660775e+006Minor biotite and pyrite; includes phyllonite, sheared fine-grained metasediment, and metavolcanic rock 1372Dqd Blue Ridge Belt Blue Ridge Intrusive Rocks Intrusive Rocks Quartz diorite to granodiorite Phanerozioc Paleozoic Devonian 390 4 7 2.21220394292e+004 5.32884610531e+006Contains biotite, muscovite, and xenocrysts. Includes Whiteside Mountain, Stone Mountain, Mount Airy, Spruce Pine, and other smaller plutons 1373ZYba Blue Ridge Belt Blue Ridge Sedimentary and Metamorphic Rocks Sedimentary and Metamorphic RocksAmphibolite Proterozoic Middle-Late Proterozoic Middle-Late Proterozoic none none 7 2.89227195432e+003 3.54870585741e+005Equigranular, massive to well foliated, interlayered, rarely discordant, metamorphosed intrusive and extrusive mafic rock; may include metasedimentary rock 1374CZiv Carolina Slate Belt Carolina Slate Belt Metamorphic rocks Metamorphic Rocks Intermediate metavolcanic rock Proterozoic-PhanerozoicLater Proterozoic-PaleozoicLate Proterozoic-Cambriannone none 5 7.87792377126e+003 2.74529672055e+006Metamorphosed andesitic tuffs and flows, medium to dark grayish green; minor felsic and mafic metavolcanic rock 1375CZg Charlotte and Milton Belts Charlotte Belt Intrusive Rocks Intrusive Rocks Metamorphosed granitic rock Proterozoic-PhanerozoicLater Proterozoic-PaleozoicLate Proterozoic-Cambriannone none 1 3.05398031590e+004 2.65261749931e+007Megacrystic, well foliated; locally contains hornblende 1376ZYba Blue Ridge Belt Blue Ridge Sedimentary and Metamorphic Rocks Sedimentary and Metamorphic RocksAmphibolite Proterozoic Middle-Late Proterozoic Middle-Late Proterozoic none none 7 4.65951305766e+003 4.28569917683e+005Equigranular, massive to well foliated, interlayered, rarely discordant, metamorphosed intrusive and extrusive mafic rock; may include metasedimentary rock 1377Tpy Coastal Plain Coastal Plain Tertiary Sedimentary Rocks Yorktown Formation and Duplin Formation, Undivided Phanerozioc Cenozoic Tertiary none none 10 1.65626589330e+004 1.95905858838e+007Yorktown Formation: Fossiliferous clay with varying amounts of fine-grained sand, bluish gray, shell material commonly concentrated in lenses; mainly in area north of Neuse River. Duplin Formation: Shelly, medium- to coarse-grained sand, sandy marl, and limestone, bluish gray; mainly in area south of Neuse River 1378CZms Inner Piedmont, Chauga Belt, Smith River Allochthon, and Sauratown MountainInner Piedmont Metamorphic rocks Metamorphic Rocks Mica schist Proterozoic-PhanerozoicLater Proterozoic-PaleozoicLate Proterozoic-Cambriannone none 14 1.42088529710e+004 2.80207000066e+006Garnet, staurolite, kyanite, or sillimanite occur locally; lenses and layers of quartz schist, micaceous quartzite, calc-silicate rock, biotite gneiss, amphibolite, and phyllite 1379PzZu Blue Ridge Belt Blue Ridge Intrusive Rocks Intrusive Rocks Meta-ultramafic rock Phanerozioc Paleozoic Permian none none 5 2.38368264683e+003 3.25064567458e+005Metamorphosed dunite, local peridotite; serpentinite, soapstone, and other altered ultramafic rock. Only larger bodies shown 1380ZYba Blue Ridge Belt Blue Ridge Sedimentary and Metamorphic Rocks Sedimentary and Metamorphic RocksAmphibolite Proterozoic Middle-Late Proterozoic Middle-Late Proterozoic none none 7 1.26369191774e+004 2.28130043489e+006Equigranular, massive to well foliated, interlayered, rarely discordant, metamorphosed intrusive and extrusive mafic rock; may include metasedimentary rock 1381Km Coastal Plain Coastal Plain Cretaceous Sedimentary Rocks Middendorf Formation Phanerozioc Mesozoic Cretaceous none none 2 9.85952472456e+003 3.48646220259e+006Sand, sandstone, and mudstone, gray to pale gray with an orange cast, mottled; clay balls and iron-cemented concretions common, beds laterally discontinous, cross-bedding common 1382CZgmsInner Piedmont, Chauga Belt, Smith River Allochthon, and Sauratown MountainInner Piedmont Metamorphic rocks Metamorphic Rocks Garnet-mica schist Proterozoic-PhanerozoicLater Proterozoic-PaleozoicLate Proterozoic-Cambriannone none 2 2.59777734979e+004 2.53977723072e+007Interlayered with amphibolite 1383ZYba Blue Ridge Belt Blue Ridge Sedimentary and Metamorphic Rocks Sedimentary and Metamorphic RocksAmphibolite Proterozoic Middle-Late Proterozoic Middle-Late Proterozoic none none 7 1.21895998644e+004 2.86050587080e+006Equigranular, massive to well foliated, interlayered, rarely discordant, metamorphosed intrusive and extrusive mafic rock; may include metasedimentary rock 1384CZms Inner Piedmont, Chauga Belt, Smith River Allochthon, and Sauratown MountainInner Piedmont Metamorphic rocks Metamorphic Rocks Mica schist Proterozoic-PhanerozoicLater Proterozoic-PaleozoicLate Proterozoic-Cambriannone none 14 1.99413898541e+004 1.01590870299e+007Garnet, staurolite, kyanite, or sillimanite occur locally; lenses and layers of quartz schist, micaceous quartzite, calc-silicate rock, biotite gneiss, amphibolite, and phyllite 1385Dqd Blue Ridge Belt Blue Ridge Intrusive Rocks Intrusive Rocks Quartz diorite to granodiorite Phanerozioc Paleozoic Devonian 390 4 7 3.59314738018e+004 9.66457244159e+006Contains biotite, muscovite, and xenocrysts. Includes Whiteside Mountain, Stone Mountain, Mount Airy, Spruce Pine, and other smaller plutons 1387CZms Inner Piedmont, Chauga Belt, Smith River Allochthon, and Sauratown MountainInner Piedmont Metamorphic rocks Metamorphic Rocks Mica schist Proterozoic-PhanerozoicLater Proterozoic-PaleozoicLate Proterozoic-Cambriannone none 14 4.77978059466e+003 6.19277234988e+005Garnet, staurolite, kyanite, or sillimanite occur locally; lenses and layers of quartz schist, micaceous quartzite, calc-silicate rock, biotite gneiss, amphibolite, and phyllite 1386ZYba Blue Ridge Belt Blue Ridge Sedimentary and Metamorphic Rocks Sedimentary and Metamorphic RocksAmphibolite Proterozoic Middle-Late Proterozoic Middle-Late Proterozoic none none 7 2.06338050412e+003 2.26778161638e+005Equigranular, massive to well foliated, interlayered, rarely discordant, metamorphosed intrusive and extrusive mafic rock; may include metasedimentary rock 1388CZtp Inner Piedmont, Chauga Belt, Smith River Allochthon, and Sauratown MountainInner Piedmont Metamorphic rocks Metamorphic Rocks Porphyroblastic gneiss Proterozoic-PhanerozoicLater Proterozoic-PaleozoicLate Proterozoic-Cambriannone none 3 1.32505655406e+004 5.11184681974e+006Massive to foliated, granodioritic, migmatitic 1389CZmd Carolina Slate Belt Carolina Slate Belt Metamorphic rocks Metamorphic Rocks Metamudstone and meta-argillite Proterozoic-PhanerozoicLater Proterozoic-PaleozoicLate Proterozoic-Cambriannone none 8 8.31303172776e+003 2.14215508688e+006Thin to thick bedded; bedding plane and axial-planar cleavage common; interbedded with metasandstone, metaconglomerate, and metavolcanic rock. CZmd3 - Floyd Church Formation, CZmd2 - Cid Formation, CZmd1 - Tillery Formation: (southwest of Asheboro) 1390TRcs Triassic Basins Durham-Sanford Subbasins Chatham Group Sedimentary Rocks Sanford Formation Phanerozioc Mesozoic Triassic none none 3 7.94493559338e+003 2.06121054146e+006Conglomerate, fanglomerate, sandstone, and mudstone 1391Km Coastal Plain Coastal Plain Cretaceous Sedimentary Rocks Middendorf Formation Phanerozioc Mesozoic Cretaceous none none 2 2.71966758919e+003 5.52170435575e+005Sand, sandstone, and mudstone, gray to pale gray with an orange cast, mottled; clay balls and iron-cemented concretions common, beds laterally discontinous, cross-bedding common 1392Zata Blue Ridge Belt Blue Ridge Ashe Metamorphic Suite and Tallulah Falls FormationSedimentary and Metamorphic RocksAmphibolite Proterozoic Late Proterozoic Late Proterozoic none none 10 7.70504057261e+004 1.80130593173e+007Equigranular, massive to well foliated, interlayered, rarely discordant, metamorphosed intrusive and extrusive mafic rock; may include metasedimentary rock 1854Mc Inner Piedmont, Chauga Belt, Smith River Allochthon, and Sauratown MountainInner Piedmont Intrusive Rocks Intrusive Rocks Cherryville Granite Phanerozioc Paleozoic Mississippian 351 20,21 9 8.05502369775e+003 2.17236758559e+006Massive to weakly foliated, contains pegmatites, lithium-bearing on east side 1393Qp Coastal Plain Coastal Plain Quaternary Surficial deposits Surficial deposits, undivided Phanerozioc Cenozoic Quaternary none none 14 1.32731877260e+003 1.05774224556e+005Sand, clay, gravel, and peat deposited in marine, fluvial, eolian, and lacustrine environments. Quaternary deposits not shown at altitudes greater than approximately 25 feet above mean sea level (Suffolk Scarp, in part) 1394DOg Charlotte and Milton Belts Charlotte Belt Intrusive Rocks Intrusive Rocks Granitic rock Phanerozioc Paleozoic Ordovician-Devonian none none 7 2.48772309865e+004 1.28861205201e+007Locally pinkish gray, massive to weakly foliated; contains hornblende 1395Dsc Inner Piedmont, Chauga Belt, Smith River Allochthon, and Sauratown MountainInner Piedmont Intrusive Rocks Intrusive Rocks Caesars Head Granitic Gniess Phanerozioc Paleozoic Devonian 409 13 8 2.35288268992e+004 1.49815763168e+007Equigranular to porphyritic, massive to well foliated; contains biotite and muscovite 1396Qp Coastal Plain Coastal Plain Quaternary Surficial deposits Surficial deposits, undivided Phanerozioc Cenozoic Quaternary none none 14 6.36261804727e+004 2.50494552529e+007Sand, clay, gravel, and peat deposited in marine, fluvial, eolian, and lacustrine environments. Quaternary deposits not shown at altitudes greater than approximately 25 feet above mean sea level (Suffolk Scarp, in part) 1397CZbg Inner Piedmont, Chauga Belt, Smith River Allochthon, and Sauratown MountainInner Piedmont Metamorphic rocks Metamorphic Rocks Biotite gneiss and schist Proterozoic-PhanerozoicLater Proterozoic-PaleozoicLate Proterozoic-Cambriannone none 16 9.48733610054e+003 3.17829875993e+006Inequigranular, locally abundant potassic feldspar and garnet; interlayered and gradational with calc-silicate rock, sillimanite-mica schist, and amphibolite. Contains small masses of granitic rock 1398Ytg Blue Ridge Belt Blue Ridge Metamorphic rocks Sedimentary and Metamorphic RocksToxaway Gneiss Proterozoic Middle Proterozoic Middle Proterozoic 1203 12 5 4.83737100186e+004 8.24833815241e+007Poorly foliated to well foliated, equigranular to inequigranular, granitic 1399Dsc Inner Piedmont, Chauga Belt, Smith River Allochthon, and Sauratown MountainInner Piedmont Intrusive Rocks Intrusive Rocks Caesars Head Granitic Gniess Phanerozioc Paleozoic Devonian 409 13 8 9.55704373413e+003 4.21718328615e+006Equigranular to porphyritic, massive to well foliated; contains biotite and muscovite 1400CZtp Inner Piedmont, Chauga Belt, Smith River Allochthon, and Sauratown MountainInner Piedmont Metamorphic rocks Metamorphic Rocks Porphyroblastic gneiss Proterozoic-PhanerozoicLater Proterozoic-PaleozoicLate Proterozoic-Cambriannone none 3 2.26836224121e+003 1.16363238039e+005Massive to foliated, granodioritic, migmatitic 1401Zb Murphy Belt Murphy Belt Metamorphic rocks Metamorphic Rocks Brasstown Formation Proterozoic Late Proterozoic Late Proterozoic none none 3 1.08759021244e+005 8.82952563826e+007Cross-biotite schist; includes micaceous quartzite in lower part 1402ZYba Blue Ridge Belt Blue Ridge Sedimentary and Metamorphic Rocks Sedimentary and Metamorphic RocksAmphibolite Proterozoic Middle-Late Proterozoic Middle-Late Proterozoic none none 7 1.10151091385e+004 2.03187426781e+006Equigranular, massive to well foliated, interlayered, rarely discordant, metamorphosed intrusive and extrusive mafic rock; may include metasedimentary rock 1404Km Coastal Plain Coastal Plain Cretaceous Sedimentary Rocks Middendorf Formation Phanerozioc Mesozoic Cretaceous none none 2 7.62437318055e+003 1.82426356564e+006Sand, sandstone, and mudstone, gray to pale gray with an orange cast, mottled; clay balls and iron-cemented concretions common, beds laterally discontinous, cross-bedding common 1403ZYba Blue Ridge Belt Blue Ridge Sedimentary and Metamorphic Rocks Sedimentary and Metamorphic RocksAmphibolite Proterozoic Middle-Late Proterozoic Middle-Late Proterozoic none none 7 3.65032417651e+003 5.00984640508e+005Equigranular, massive to well foliated, interlayered, rarely discordant, metamorphosed intrusive and extrusive mafic rock; may include metasedimentary rock 1405Tpy Coastal Plain Coastal Plain Tertiary Sedimentary Rocks Yorktown Formation and Duplin Formation, Undivided Phanerozioc Cenozoic Tertiary none none 10 3.07785707686e+004 5.23125332283e+007Yorktown Formation: Fossiliferous clay with varying amounts of fine-grained sand, bluish gray, shell material commonly concentrated in lenses; mainly in area north of Neuse River. Duplin Formation: Shelly, medium- to coarse-grained sand, sandy marl, and limestone, bluish gray; mainly in area south of Neuse River 1406Zata Blue Ridge Belt Blue Ridge Ashe Metamorphic Suite and Tallulah Falls FormationSedimentary and Metamorphic RocksAmphibolite Proterozoic Late Proterozoic Late Proterozoic none none 10 1.26353822873e+004 1.40082207166e+006Equigranular, massive to well foliated, interlayered, rarely discordant, metamorphosed intrusive and extrusive mafic rock; may include metasedimentary rock 1407CZph Eastern Slate Belt Eastern Slate Belt Metamorphic rocks Metamorphic Rocks Phyllite and schist Proterozoic-PhanerozoicLater Proterozoic-PaleozoicLate Proterozoic-Cambriannone none 1 2.69513970524e+003 4.95742239425e+005Minor biotite and pyrite; includes phyllonite, sheared fine-grained metasediment, and metavolcanic rock 1408ZYba Blue Ridge Belt Blue Ridge Sedimentary and Metamorphic Rocks Sedimentary and Metamorphic RocksAmphibolite Proterozoic Middle-Late Proterozoic Middle-Late Proterozoic none none 7 1.62545496138e+004 4.10125942319e+006Equigranular, massive to well foliated, interlayered, rarely discordant, metamorphosed intrusive and extrusive mafic rock; may include metasedimentary rock 1409PzZu Blue Ridge Belt Blue Ridge Intrusive Rocks Intrusive Rocks Meta-ultramafic rock Phanerozioc Paleozoic Permian none none 5 1.51241488434e+003 1.49533321724e+005Metamorphosed dunite, local peridotite; serpentinite, soapstone, and other altered ultramafic rock. Only larger bodies shown 1410CZbg Inner Piedmont, Chauga Belt, Smith River Allochthon, and Sauratown MountainInner Piedmont Metamorphic rocks Metamorphic Rocks Biotite gneiss and schist Proterozoic-PhanerozoicLater Proterozoic-PaleozoicLate Proterozoic-Cambriannone none 16 5.60027979293e+003 1.40464366741e+006Inequigranular, locally abundant potassic feldspar and garnet; interlayered and gradational with calc-silicate rock, sillimanite-mica schist, and amphibolite. Contains small masses of granitic rock 1411PzZm Charlotte and Milton Belts Charlotte Belt Intrusive Rocks Intrusive Rocks Metamorphosed mafic rock Phanerozioc Paleozoic Permian none none 3 4.29111550784e+003 1.20426298217e+006Metagabbro, metadiorite, and mafic plutonic-volcanic complexes 1412ZYba Blue Ridge Belt Blue Ridge Sedimentary and Metamorphic Rocks Sedimentary and Metamorphic RocksAmphibolite Proterozoic Middle-Late Proterozoic Middle-Late Proterozoic none none 7 2.52950748858e+003 3.23439795050e+005Equigranular, massive to well foliated, interlayered, rarely discordant, metamorphosed intrusive and extrusive mafic rock; may include metasedimentary rock 1413CZbg Inner Piedmont, Chauga Belt, Smith River Allochthon, and Sauratown MountainInner Piedmont Metamorphic rocks Metamorphic Rocks Biotite gneiss and schist Proterozoic-PhanerozoicLater Proterozoic-PaleozoicLate Proterozoic-Cambriannone none 16 5.92117020378e+003 1.61999247021e+006Inequigranular, locally abundant potassic feldspar and garnet; interlayered and gradational with calc-silicate rock, sillimanite-mica schist, and amphibolite. Contains small masses of granitic rock 1414Org Blue Ridge Belt Blue Ridge Intrusive Rocks Intrusive Rocks Rabun Gneiss Phanerozioc Paleozoic Ordovician 450-500 13 6 5.11564741751e+004 4.79901481554e+007Weakly to well foliated, granitic to quartz monzonitic 1415DSg Charlotte and Milton Belts Charlotte Belt Intrusive Rocks Intrusive Rocks Granite of Salisbury Plutonic Suite Phanerozioc Paleozoic Silurian-Devonian 385-415 5 10 6.64206548686e+003 2.41796610962e+006Pink, massive to weakly foliated. Gold Hill, Kannapolis, Salisbury, Southmont, and Yadkin intrusives 1416ZYba Blue Ridge Belt Blue Ridge Sedimentary and Metamorphic Rocks Sedimentary and Metamorphic RocksAmphibolite Proterozoic Middle-Late Proterozoic Middle-Late Proterozoic none none 7 1.83712101228e+003 1.74324078795e+005Equigranular, massive to well foliated, interlayered, rarely discordant, metamorphosed intrusive and extrusive mafic rock; may include metasedimentary rock 1417CZg Charlotte and Milton Belts Charlotte Belt Intrusive Rocks Intrusive Rocks Metamorphosed granitic rock Proterozoic-PhanerozoicLater Proterozoic-PaleozoicLate Proterozoic-Cambriannone none 1 1.48512609009e+004 7.23739207106e+006Megacrystic, well foliated; locally contains hornblende 1418Tec Coastal Plain Coastal Plain Tertiary Sedimentary Rocks Comfort Member and New Hanover Member, Undivided Phanerozioc Cenozoic Tertiary none none 6 7.84600341382e+003 4.71269729608e+006Comfort Member: Bryozoan-echinoid skeletal limestone, locally dolomitized, solution cavities common. New Hanover Member: Phosphate-pebble conglomerate, micritic, thin; restricted to basal part of Castle Hayne Formation in southeastern counties 1419PzZu Blue Ridge Belt Blue Ridge Intrusive Rocks Intrusive Rocks Meta-ultramafic rock Phanerozioc Paleozoic Permian none none 5 2.63473805003e+003 4.16262834907e+005Metamorphosed dunite, local peridotite; serpentinite, soapstone, and other altered ultramafic rock. Only larger bodies shown 1420ZYba Blue Ridge Belt Blue Ridge Sedimentary and Metamorphic Rocks Sedimentary and Metamorphic RocksAmphibolite Proterozoic Middle-Late Proterozoic Middle-Late Proterozoic none none 7 6.55916146944e+003 8.87692569782e+005Equigranular, massive to well foliated, interlayered, rarely discordant, metamorphosed intrusive and extrusive mafic rock; may include metasedimentary rock 1440DOg Charlotte and Milton Belts Charlotte Belt Intrusive Rocks Intrusive Rocks Granitic rock Phanerozioc Paleozoic Ordovician-Devonian none none 7 9.64663284912e+003 3.16911007654e+006Locally pinkish gray, massive to weakly foliated; contains hornblende 1441Tp Coastal Plain Coastal Plain Tertiary Sedimentary Rocks Pinehurst Formation Phanerozioc Cenozoic Tertiary none none 13 3.33321259657e+004 1.28321703652e+007Sand, medium- to coarse-grained, crossbedding and rhythmic bands of clayey sand common, unconsolidated 1442PzZu Blue Ridge Belt Blue Ridge Intrusive Rocks Intrusive Rocks Meta-ultramafic rock Phanerozioc Paleozoic Permian none none 5 2.24896552623e+003 3.00985286674e+005Metamorphosed dunite, local peridotite; serpentinite, soapstone, and other altered ultramafic rock. Only larger bodies shown 1443Tpy Coastal Plain Coastal Plain Tertiary Sedimentary Rocks Yorktown Formation and Duplin Formation, Undivided Phanerozioc Cenozoic Tertiary none none 10 1.98598324873e+004 2.33798473029e+007Yorktown Formation: Fossiliferous clay with varying amounts of fine-grained sand, bluish gray, shell material commonly concentrated in lenses; mainly in area north of Neuse River. Duplin Formation: Shelly, medium- to coarse-grained sand, sandy marl, and limestone, bluish gray; mainly in area south of Neuse River 1444PzZm Charlotte and Milton Belts Charlotte Belt Intrusive Rocks Intrusive Rocks Metamorphosed mafic rock Phanerozioc Paleozoic Permian none none 3 5.94323671809e+004 6.98172965259e+007Metagabbro, metadiorite, and mafic plutonic-volcanic complexes 1445DOgb Charlotte and Milton Belts Charlotte Belt Intrusive Rocks Intrusive Rocks Gabbro of Concord Plutonic Suite Phanerozioc Paleozoic Ordovician-Devonian 399-479 24 8 3.35295585839e+004 4.40738642736e+007Barber, Concord, Farmington, Mecklenburg, and Weddington intrusives 1446PzZu Blue Ridge Belt Blue Ridge Intrusive Rocks Intrusive Rocks Meta-ultramafic rock Phanerozioc Paleozoic Permian none none 5 1.14926224670e+004 2.60153585616e+006Metamorphosed dunite, local peridotite; serpentinite, soapstone, and other altered ultramafic rock. Only larger bodies shown 1447PzZu Blue Ridge Belt Blue Ridge Intrusive Rocks Intrusive Rocks Meta-ultramafic rock Phanerozioc Paleozoic Permian none none 5 2.31942928106e+003 3.67016511643e+005Metamorphosed dunite, local peridotite; serpentinite, soapstone, and other altered ultramafic rock. Only larger bodies shown 1448Dsc Inner Piedmont, Chauga Belt, Smith River Allochthon, and Sauratown MountainInner Piedmont Intrusive Rocks Intrusive Rocks Caesars Head Granitic Gniess Phanerozioc Paleozoic Devonian 409 13 8 4.80583194282e+002 6.73918912847e+003Equigranular to porphyritic, massive to well foliated; contains biotite and muscovite 1449SOgg Inner Piedmont, Chauga Belt, Smith River Allochthon, and Sauratown MountainChauga Belt Intrusive Rocks Intrusive Rocks Granite gneiss Phanerozioc Paleozoic Ordovician-Silurian 438 17 7 1.57793439329e+004 5.57847902211e+006Poorly foliated; interlayered with biotite augen gneiss 1450ZYba Blue Ridge Belt Blue Ridge Sedimentary and Metamorphic Rocks Sedimentary and Metamorphic RocksAmphibolite Proterozoic Middle-Late Proterozoic Middle-Late Proterozoic none none 7 4.64581076143e+003 8.60030322982e+005Equigranular, massive to well foliated, interlayered, rarely discordant, metamorphosed intrusive and extrusive mafic rock; may include metasedimentary rock 1451Zata Blue Ridge Belt Blue Ridge Ashe Metamorphic Suite and Tallulah Falls FormationSedimentary and Metamorphic RocksAmphibolite Proterozoic Late Proterozoic Late Proterozoic none none 10 3.41144891236e+004 1.15633590387e+007Equigranular, massive to well foliated, interlayered, rarely discordant, metamorphosed intrusive and extrusive mafic rock; may include metasedimentary rock 1452Km Coastal Plain Coastal Plain Cretaceous Sedimentary Rocks Middendorf Formation Phanerozioc Mesozoic Cretaceous none none 2 3.50336737591e+003 7.49605312194e+005Sand, sandstone, and mudstone, gray to pale gray with an orange cast, mottled; clay balls and iron-cemented concretions common, beds laterally discontinous, cross-bedding common 1453Tec Coastal Plain Coastal Plain Tertiary Sedimentary Rocks Comfort Member and New Hanover Member, Undivided Phanerozioc Cenozoic Tertiary none none 6 6.37739737844e+003 3.09474067924e+006Comfort Member: Bryozoan-echinoid skeletal limestone, locally dolomitized, solution cavities common. New Hanover Member: Phosphate-pebble conglomerate, micritic, thin; restricted to basal part of Castle Hayne Formation in southeastern counties 1454Zco Blue Ridge Belt Blue Ridge Metamorphic rocks Sedimentary and Metamorphic RocksCoweeta Group Proterozoic Late Proterozoic Late Proterozoic none none 9 5.05832532940e+003 1.21307999679e+006Quartz dioritic gneiss, feldspar-quartz-biotite gneiss, metasandstone and quartzite, alumino-silicate schist, garnetiferous biotite gneiss, and minor amphibolite. Quartz dioritic gneiss predominant 1455ZYba Blue Ridge Belt Blue Ridge Sedimentary and Metamorphic Rocks Sedimentary and Metamorphic RocksAmphibolite Proterozoic Middle-Late Proterozoic Middle-Late Proterozoic none none 7 5.12100747264e+003 1.14965366847e+006Equigranular, massive to well foliated, interlayered, rarely discordant, metamorphosed intrusive and extrusive mafic rock; may include metasedimentary rock 1456CZam Murphy Belt Murphy Belt Intrusive Rocks Intrusive Rocks Amphibolite Proterozoic-PhanerozoicLater Proterozoic-PaleozoicLate Proterozoic-Cambriannone none 1 2.73915058270e+003 2.56661016558e+005Equigranular, massive to well foliated, dioritic to basaltic dikes and sills; variably metamorphosed 1457ZYba Blue Ridge Belt Blue Ridge Sedimentary and Metamorphic Rocks Sedimentary and Metamorphic RocksAmphibolite Proterozoic Middle-Late Proterozoic Middle-Late Proterozoic none none 7 1.33251628221e+004 3.84019453161e+006Equigranular, massive to well foliated, interlayered, rarely discordant, metamorphosed intrusive and extrusive mafic rock; may include metasedimentary rock 1458Tpy Coastal Plain Coastal Plain Tertiary Sedimentary Rocks Yorktown Formation and Duplin Formation, Undivided Phanerozioc Cenozoic Tertiary none none 10 1.13694612506e+003 7.54831256968e+004Yorktown Formation: Fossiliferous clay with varying amounts of fine-grained sand, bluish gray, shell material commonly concentrated in lenses; mainly in area north of Neuse River. Duplin Formation: Shelly, medium- to coarse-grained sand, sandy marl, and limestone, bluish gray; mainly in area south of Neuse River 1459Km Coastal Plain Coastal Plain Cretaceous Sedimentary Rocks Middendorf Formation Phanerozioc Mesozoic Cretaceous none none 2 2.98947990010e+003 6.47619611641e+005Sand, sandstone, and mudstone, gray to pale gray with an orange cast, mottled; clay balls and iron-cemented concretions common, beds laterally discontinous, cross-bedding common 1460Tpy Coastal Plain Coastal Plain Tertiary Sedimentary Rocks Yorktown Formation and Duplin Formation, Undivided Phanerozioc Cenozoic Tertiary none none 10 2.69308854864e+003 2.27456195881e+005Yorktown Formation: Fossiliferous clay with varying amounts of fine-grained sand, bluish gray, shell material commonly concentrated in lenses; mainly in area north of Neuse River. Duplin Formation: Shelly, medium- to coarse-grained sand, sandy marl, and limestone, bluish gray; mainly in area south of Neuse River 1461ZYba Blue Ridge Belt Blue Ridge Sedimentary and Metamorphic Rocks Sedimentary and Metamorphic RocksAmphibolite Proterozoic Middle-Late Proterozoic Middle-Late Proterozoic none none 7 1.18645034966e+004 1.56443309260e+006Equigranular, massive to well foliated, interlayered, rarely discordant, metamorphosed intrusive and extrusive mafic rock; may include metasedimentary rock 1462CZiv Carolina Slate Belt Carolina Slate Belt Metamorphic rocks Metamorphic Rocks Intermediate metavolcanic rock Proterozoic-PhanerozoicLater Proterozoic-PaleozoicLate Proterozoic-Cambriannone none 5 2.57081310666e+004 1.21689801788e+007Metamorphosed andesitic tuffs and flows, medium to dark grayish green; minor felsic and mafic metavolcanic rock 1463PzZu Blue Ridge Belt Blue Ridge Intrusive Rocks Intrusive Rocks Meta-ultramafic rock Phanerozioc Paleozoic Permian none none 5 2.28973459063e+003 3.22886202379e+005Metamorphosed dunite, local peridotite; serpentinite, soapstone, and other altered ultramafic rock. Only larger bodies shown 1464Zatb Blue Ridge Belt Blue Ridge Ashe Metamorphic Suite and Tallulah Falls FormationSedimentary and Metamorphic RocksBiotite gneiss Proterozoic Late Proterozoic Late Proterozoic none none 11 9.14802258608e+003 2.90353576522e+006Interlayered with biotite-garnet gneiss, biotite-muscovite schist, garnet-mica schist, and amphibolite 1465Tp Coastal Plain Coastal Plain Tertiary Sedimentary Rocks Pinehurst Formation Phanerozioc Cenozoic Tertiary none none 13 2.11519293870e+004 8.02299752093e+006Sand, medium- to coarse-grained, crossbedding and rhythmic bands of clayey sand common, unconsolidated 1466Tp Coastal Plain Coastal Plain Tertiary Sedimentary Rocks Pinehurst Formation Phanerozioc Cenozoic Tertiary none none 13 1.48142970461e+004 4.77956186275e+006Sand, medium- to coarse-grained, crossbedding and rhythmic bands of clayey sand common, unconsolidated 1467Zgs Blue Ridge Belt Blue Ridge Ocoee Supergroup Sedimentary and Metamorphic RocksGreat Smoky Group, Undivided Proterozoic Late Proterozoic Late Proterozoic none none 34 3.37446327033e+004 2.67575094215e+007Thick metasedimentary sequence of massive to graded beds of metagraywacke and metasiltstone with interbedded graphitic and sulfidic slate and schist 1468PzZq Charlotte and Milton Belts Charlotte Belt Intrusive Rocks Intrusive Rocks Metamorphosed quartz diorite Phanerozioc Paleozoic Permian none none 5 6.47244882920e+003 3.00412439504e+006Foliated to massive 1469PzZq Charlotte and Milton Belts Charlotte Belt Intrusive Rocks Intrusive Rocks Metamorphosed quartz diorite Phanerozioc Paleozoic Permian none none 5 4.21582461385e+004 2.63364464028e+007Foliated to massive 1481Tec Coastal Plain Coastal Plain Tertiary Sedimentary Rocks Comfort Member and New Hanover Member, Undivided Phanerozioc Cenozoic Tertiary none none 6 3.80180285683e+003 1.06422216859e+006Comfort Member: Bryozoan-echinoid skeletal limestone, locally dolomitized, solution cavities common. New Hanover Member: Phosphate-pebble conglomerate, micritic, thin; restricted to basal part of Castle Hayne Formation in southeastern counties 1482Kc Coastal Plain Coastal Plain Cretaceous Sedimentary Rocks Cape Fear Formation Phanerozioc Mesozoic Cretaceous none none 1 5.40850345418e+004 2.20161936627e+007Sandstone and sandy mudstone, yellowish gray to bluish gray, mottled red to yellowish orange, indurated, graded and laterally continuous bedding, blocky clay, faint cross-bedding, feldspar and mica common 1483DOgb Charlotte and Milton Belts Charlotte Belt Intrusive Rocks Intrusive Rocks Gabbro of Concord Plutonic Suite Phanerozioc Paleozoic Ordovician-Devonian none none 8 1.30895271590e+004 9.95078011296e+006Barber, Concord, Farmington, Mecklenburg, and Weddington intrusives 1484Zata Blue Ridge Belt Blue Ridge Ashe Metamorphic Suite and Tallulah Falls FormationSedimentary and Metamorphic RocksAmphibolite Proterozoic Late Proterozoic Late Proterozoic none none 10 1.65675237620e+004 3.11520949270e+006Equigranular, massive to well foliated, interlayered, rarely discordant, metamorphosed intrusive and extrusive mafic rock; may include metasedimentary rock 1485Zman Murphy Belt Murphy Belt Metamorphic rocks Metamorphic Rocks Murphy Marble, Andrews Formation, and Nottely Quartzite, undividedProterozoic Late Proterozoic Late Proterozoic none none 4 2.65633055548e+003 2.48270738707e+005Murphy Marble: calcareous to dolomitic; Andrews Formation: calcarous cross-biotite schist; Nottely Quartzite: meta-orthoquartzite with slate 1486CZmd3Carolina Slate Belt Carolina Slate Belt Metamorphic rocks Metamorphic Rocks Tillery Formation Proterozoic-PhanerozoicLater Proterozoic-PaleozoicLate Proterozoic-Cambriannone none 8 1.60723982476e+005 2.10329381963e+008Floyd Church Formation (southwest of Asheboro) 1487Zata Blue Ridge Belt Blue Ridge Ashe Metamorphic Suite and Tallulah Falls FormationSedimentary and Metamorphic RocksAmphibolite Proterozoic Late Proterozoic Late Proterozoic none none 10 3.62485645908e+003 3.09540962238e+005Equigranular, massive to well foliated, interlayered, rarely discordant, metamorphosed intrusive and extrusive mafic rock; may include metasedimentary rock 1488Zch Blue Ridge Belt Blue Ridge Ocoee Supergroup Sedimentary and Metamorphic RocksCopper Hill Formation Proterozoic Late Proterozoic Late Proterozoic none none 30 1.45955173242e+004 4.80956841842e+006Metagraywacke, massive, graded bedding common; includes dark-gray slate, mica schist, and nodular calcsilicate rock 1489TRc Triassic Basins Wadesboro Subbasin Newark Supergroup Sedimentary Rocks Chatham Group, Undivided Phanerozioc Mesozoic Triassic none none 4 3.68235425512e+003 6.66778467158e+005Conglomerate, fanglomerate, sandstone, and mudstone. Conglomerate and fanglomerate shown by pattern 1490Tp Coastal Plain Coastal Plain Tertiary Sedimentary Rocks Pinehurst Formation Phanerozioc Cenozoic Tertiary none none 13 2.45145313910e+003 4.14848672912e+005Sand, medium- to coarse-grained, crossbedding and rhythmic bands of clayey sand common, unconsolidated 1491CZfv Charlotte and Milton Belts Charlotte Belt Metamorphic rocks Metamorphic Rocks Felsic metavolcanic rock Proterozoic-PhanerozoicLater Proterozoic-PaleozoicLate Proterozoic-Cambriannone none 3 4.70818227846e+004 3.93269393381e+007Metamorphosed dacitic to rhyolitic flows and tuffs, light gray to greenish gray; minor mafic and intermediate metavolcanic rock 1492CZfv2Carolina Slate Belt Carolina Slate Belt Metamorphic rocks Metamorphic Rocks Uwharrie Formation Proterozoic-PhanerozoicLater Proterozoic-PaleozoicLate Proterozoic-Cambriannone none 6 8.49894277891e+003 2.64063969650e+006Cid Formation (southwest of Asheboro) 1493Zata Blue Ridge Belt Blue Ridge Ashe Metamorphic Suite and Tallulah Falls FormationSedimentary and Metamorphic RocksAmphibolite Proterozoic Late Proterozoic Late Proterozoic none none 10 1.42261977154e+004 3.63285160600e+006Equigranular, massive to well foliated, interlayered, rarely discordant, metamorphosed intrusive and extrusive mafic rock; may include metasedimentary rock 1494Zata Blue Ridge Belt Blue Ridge Ashe Metamorphic Suite and Tallulah Falls FormationSedimentary and Metamorphic RocksAmphibolite Proterozoic Late Proterozoic Late Proterozoic none none 10 8.81341534293e+003 1.63354167252e+006Equigranular, massive to well foliated, interlayered, rarely discordant, metamorphosed intrusive and extrusive mafic rock; may include metasedimentary rock 1495Zatb Blue Ridge Belt Blue Ridge Ashe Metamorphic Suite and Tallulah Falls FormationSedimentary and Metamorphic RocksBiotite gneiss Proterozoic Late Proterozoic Late Proterozoic none none 11 2.00525497438e+003 1.33099332855e+005Interlayered with biotite-garnet gneiss, biotite-muscovite schist, garnet-mica schist, and amphibolite 1496ZYba Blue Ridge Belt Blue Ridge Sedimentary and Metamorphic Rocks Sedimentary and Metamorphic RocksAmphibolite Proterozoic Middle-Late Proterozoic Middle-Late Proterozoic none none 7 8.03281439192e+003 1.34351808657e+006Equigranular, massive to well foliated, interlayered, rarely discordant, metamorphosed intrusive and extrusive mafic rock; may include metasedimentary rock 1497CZg Charlotte and Milton Belts Charlotte Belt Intrusive Rocks Intrusive Rocks Metamorphosed granitic rock Proterozoic-PhanerozoicLater Proterozoic-PaleozoicLate Proterozoic-Cambriannone none 1 1.29342213087e+004 7.37459105401e+006Megacrystic, well foliated; locally contains hornblende 1498Qp Coastal Plain Coastal Plain Quaternary Surficial deposits Surficial deposits, undivided Phanerozioc Cenozoic Quaternary none none 14 2.87536163681e+004 1.84246464725e+007Sand, clay, gravel, and peat deposited in marine, fluvial, eolian, and lacustrine environments. Quaternary deposits not shown at altitudes greater than approximately 25 feet above mean sea level (Suffolk Scarp, in part) 1499Qp Coastal Plain Coastal Plain Quaternary Surficial deposits Surficial deposits, undivided Phanerozioc Cenozoic Quaternary none none 14 1.20293610930e+003 9.78306678063e+004Sand, clay, gravel, and peat deposited in marine, fluvial, eolian, and lacustrine environments. Quaternary deposits not shown at altitudes greater than approximately 25 feet above mean sea level (Suffolk Scarp, in part) 1500Tp Coastal Plain Coastal Plain Tertiary Sedimentary Rocks Pinehurst Formation Phanerozioc Cenozoic Tertiary none none 13 3.51114253171e+003 5.33839763497e+005Sand, medium- to coarse-grained, crossbedding and rhythmic bands of clayey sand common, unconsolidated 1501TRc Triassic Basins Wadesboro Subbasin Newark Supergroup Sedimentary Rocks Chatham Group, Undivided Phanerozioc Mesozoic Triassic none none 4 3.70131323784e+003 7.18699444030e+005Conglomerate, fanglomerate, sandstone, and mudstone. Conglomerate and fanglomerate shown by pattern 1502DOgb Charlotte and Milton Belts Charlotte Belt Intrusive Rocks Intrusive Rocks Gabbro of Concord Plutonic Suite Phanerozioc Paleozoic Ordovician-Devonian none none 8 5.88268282324e+003 2.37912280692e+006Barber, Concord, Farmington, Mecklenburg, and Weddington intrusives 1503DOg Charlotte and Milton Belts Charlotte Belt Intrusive Rocks Intrusive Rocks Granitic rock Phanerozioc Paleozoic Ordovician-Devonian none none 7 7.49670755912e+003 3.95986634685e+006Locally pinkish gray, massive to weakly foliated; contains hornblende 1504Zch Blue Ridge Belt Blue Ridge Ocoee Supergroup Sedimentary and Metamorphic RocksCopper Hill Formation Proterozoic Late Proterozoic Late Proterozoic none none 30 1.15100332813e+003 5.15631243384e+004Metagraywacke, massive, graded bedding common; includes dark-gray slate, mica schist, and nodular calcsilicate rock 1505Tp Coastal Plain Coastal Plain Tertiary Sedimentary Rocks Pinehurst Formation Phanerozioc Cenozoic Tertiary none none 13 3.12353611413e+003 5.62478404250e+005Sand, medium- to coarse-grained, crossbedding and rhythmic bands of clayey sand common, unconsolidated 1506Qp Coastal Plain Coastal Plain Quaternary Surficial deposits Surficial deposits, undivided Phanerozioc Cenozoic Quaternary none none 14 5.70464973591e+005 1.02736686619e+009Sand, clay, gravel, and peat deposited in marine, fluvial, eolian, and lacustrine environments. Quaternary deposits not shown at altitudes greater than approximately 25 feet above mean sea level (Suffolk Scarp, in part) 1507ZYba Blue Ridge Belt Blue Ridge Sedimentary and Metamorphic Rocks Sedimentary and Metamorphic RocksAmphibolite Proterozoic Middle-Late Proterozoic Middle-Late Proterozoic none none 7 6.24044923190e+003 7.59619578461e+005Equigranular, massive to well foliated, interlayered, rarely discordant, metamorphosed intrusive and extrusive mafic rock; may include metasedimentary rock 1508Qp Coastal Plain Coastal Plain Quaternary Surficial deposits Surficial deposits, undivided Phanerozioc Cenozoic Quaternary none none 14 3.56662600505e+003 6.17778371147e+005Sand, clay, gravel, and peat deposited in marine, fluvial, eolian, and lacustrine environments. Quaternary deposits not shown at altitudes greater than approximately 25 feet above mean sea level (Suffolk Scarp, in part) 1509Zhha Blue Ridge Belt Blue Ridge Ocoee Supergroup Sedimentary and Metamorphic RocksMetasandstone, Metagraywacke, Metasiltstone, and Mica schist Proterozoic Late Proterozoic Late Proterozoic none none 32 1.38268743042e+004 3.61620977123e+006Beds and lenses of calc-silicate rock locally abundant; garnet, staurolite, and cross-biotite porphyroblasts common in fine-grained layers. Includes Hughes Gap and Hothouse formations in southern area; Horse Branch Member of Ammons Formation and Grassy Branch Formation in northern area 1510PzZu Blue Ridge Belt Blue Ridge Intrusive Rocks Intrusive Rocks Meta-ultramafic rock Phanerozioc Paleozoic Permian none none 5 3.30435442593e+003 2.82540718360e+005Metamorphosed dunite, local peridotite; serpentinite, soapstone, and other altered ultramafic rock. Only larger bodies shown 1511Zatb Blue Ridge Belt Blue Ridge Ashe Metamorphic Suite and Tallulah Falls FormationSedimentary and Metamorphic RocksBiotite gneiss Proterozoic Late Proterozoic Late Proterozoic none none 11 2.29704742184e+003 2.10858856235e+005Interlayered with biotite-garnet gneiss, biotite-muscovite schist, garnet-mica schist, and amphibolite 1512Zata Blue Ridge Belt Blue Ridge Ashe Metamorphic Suite and Tallulah Falls FormationSedimentary and Metamorphic RocksAmphibolite Proterozoic Late Proterozoic Late Proterozoic none none 10 6.97864883891e+003 9.29518593730e+005Equigranular, massive to well foliated, interlayered, rarely discordant, metamorphosed intrusive and extrusive mafic rock; may include metasedimentary rock 1513Tpy Coastal Plain Coastal Plain Tertiary Sedimentary Rocks Yorktown Formation and Duplin Formation, Undivided Phanerozioc Cenozoic Tertiary none none 10 8.73159793938e+003 3.42398454103e+006Yorktown Formation: Fossiliferous clay with varying amounts of fine-grained sand, bluish gray, shell material commonly concentrated in lenses; mainly in area north of Neuse River. Duplin Formation: Shelly, medium- to coarse-grained sand, sandy marl, and limestone, bluish gray; mainly in area south of Neuse River 1514Tp Coastal Plain Coastal Plain Tertiary Sedimentary Rocks Pinehurst Formation Phanerozioc Cenozoic Tertiary none none 13 5.90399703176e+003 1.53363916398e+006Sand, medium- to coarse-grained, crossbedding and rhythmic bands of clayey sand common, unconsolidated 1515Tec Coastal Plain Coastal Plain Tertiary Sedimentary Rocks Comfort Member and New Hanover Member, Undivided Phanerozioc Cenozoic Tertiary none none 6 2.85830228384e+003 6.00785229922e+005Comfort Member: Bryozoan-echinoid skeletal limestone, locally dolomitized, solution cavities common. New Hanover Member: Phosphate-pebble conglomerate, micritic, thin; restricted to basal part of Castle Hayne Formation in southeastern counties 1516DSs Charlotte and Milton Belts Charlotte Belt Intrusive Rocks Intrusive Rocks Syenite of Concord Plutonic Suite Phanerozioc Paleozoic Silurian-Devonian 404 9 9 6.49480803640e+003 2.70237183606e+006Includes the Concord ring dike 1517Tp Coastal Plain Coastal Plain Tertiary Sedimentary Rocks Pinehurst Formation Phanerozioc Cenozoic Tertiary none none 13 1.29130899353e+004 4.94033757133e+006Sand, medium- to coarse-grained, crossbedding and rhythmic bands of clayey sand common, unconsolidated 1518CZg Charlotte and Milton Belts Charlotte Belt Intrusive Rocks Intrusive Rocks Metamorphosed granitic rock Proterozoic-PhanerozoicLater Proterozoic-PaleozoicLate Proterozoic-Cambriannone none 1 1.33877934170e+004 5.14211025799e+006Megacrystic, well foliated; locally contains hornblende 1519PzZu Blue Ridge Belt Blue Ridge Intrusive Rocks Intrusive Rocks Meta-ultramafic rock Phanerozioc Paleozoic Permian none none 5 2.65359146116e+003 3.69743786854e+005Metamorphosed dunite, local peridotite; serpentinite, soapstone, and other altered ultramafic rock. Only larger bodies shown 1520Tpy Coastal Plain Coastal Plain Tertiary Sedimentary Rocks Yorktown Formation and Duplin Formation, Undivided Phanerozioc Cenozoic Tertiary none none 10 6.74889431929e+003 1.72040400665e+006Yorktown Formation: Fossiliferous clay with varying amounts of fine-grained sand, bluish gray, shell material commonly concentrated in lenses; mainly in area north of Neuse River. Duplin Formation: Shelly, medium- to coarse-grained sand, sandy marl, and limestone, bluish gray; mainly in area south of Neuse River 1521ZYba Blue Ridge Belt Blue Ridge Sedimentary and Metamorphic Rocks Sedimentary and Metamorphic RocksAmphibolite Proterozoic Middle-Late Proterozoic Middle-Late Proterozoic none none 7 2.19333208560e+003 2.50090806364e+005Equigranular, massive to well foliated, interlayered, rarely discordant, metamorphosed intrusive and extrusive mafic rock; may include metasedimentary rock 1522CZmd Carolina Slate Belt Carolina Slate Belt Metamorphic rocks Metamorphic Rocks Metamudstone and meta-argillite Proterozoic-PhanerozoicLater Proterozoic-PaleozoicLate Proterozoic-Cambriannone none 8 1.06629173304e+004 4.37525147833e+006Thin to thick bedded; bedding plane and axial-planar cleavage common; interbedded with metasandstone, metaconglomerate, and metavolcanic rock. CZmd3 - Floyd Church Formation, CZmd2 - Cid Formation, CZmd1 - Tillery Formation: (southwest of Asheboro) 1523DOgb Charlotte and Milton Belts Charlotte Belt Intrusive Rocks Intrusive Rocks Gabbro of Concord Plutonic Suite Phanerozioc Paleozoic Ordovician-Devonian none none 8 3.21006059557e+004 4.74373514010e+007Barber, Concord, Farmington, Mecklenburg, and Weddington intrusives 1524DSg Charlotte and Milton Belts Charlotte Belt Intrusive Rocks Intrusive Rocks Granite of Salisbury Plutonic Suite Phanerozioc Paleozoic Silurian-Devonian 385-415 5 10 1.61053326905e+004 1.41312565086e+007Pink, massive to weakly foliated. Gold Hill, Kannapolis, Salisbury, Southmont, and Yadkin intrusives 1525Tpy Coastal Plain Coastal Plain Tertiary Sedimentary Rocks Yorktown Formation and Duplin Formation, Undivided Phanerozioc Cenozoic Tertiary none none 10 1.78726872639e+005 9.32193836360e+008Yorktown Formation: Fossiliferous clay with varying amounts of fine-grained sand, bluish gray, shell material commonly concentrated in lenses; mainly in area north of Neuse River. Duplin Formation: Shelly, medium- to coarse-grained sand, sandy marl, and limestone, bluish gray; mainly in area south of Neuse River 1526PPg Carolina Slate Belt Carolina Slate Belt Intrusive Rocks Intrusive Rocks Granitic rock Phanerozioc Paleozoic Pennsylvanian-Permian 265-325 11 7 9.76780757290e+003 3.05387694018e+006Megacrystic to equigranular. Lilesville granite 1527Kb Coastal Plain Coastal Plain Cretaceous Sedimentary Rocks Black Creek Formation Phanerozioc Mesozoic Cretaceous none none 3 7.91995257678e+003 3.81538433733e+006Clay, gray to black, lignitic; contains thin beds and laminae of fine-grained micaceous sand and thick lenses of cross-bedded sand. Glauconitic, fossiliferous clayey sand lenses in upper part 1528CZfv2Carolina Slate Belt Carolina Slate Belt Metamorphic rocks Metamorphic Rocks Uwharrie Formation Proterozoic-PhanerozoicLater Proterozoic-PaleozoicLate Proterozoic-Cambriannone none 6 7.77204892245e+003 1.67947280485e+006Cid Formation (southwest of Asheboro) 1529Qp Coastal Plain Coastal Plain Quaternary Surficial deposits Surficial deposits, undivided Phanerozioc Cenozoic Quaternary none none 14 4.27838426617e+003 6.49792374438e+005Sand, clay, gravel, and peat deposited in marine, fluvial, eolian, and lacustrine environments. Quaternary deposits not shown at altitudes greater than approximately 25 feet above mean sea level (Suffolk Scarp, in part) 1530Tp Coastal Plain Coastal Plain Tertiary Sedimentary Rocks Pinehurst Formation Phanerozioc Cenozoic Tertiary none none 13 3.22616276784e+003 7.79235872581e+005Sand, medium- to coarse-grained, crossbedding and rhythmic bands of clayey sand common, unconsolidated 1531Tec Coastal Plain Coastal Plain Tertiary Sedimentary Rocks Comfort Member and New Hanover Member, Undivided Phanerozioc Cenozoic Tertiary none none 6 8.56769671752e+003 5.62201378281e+006Comfort Member: Bryozoan-echinoid skeletal limestone, locally dolomitized, solution cavities common. New Hanover Member: Phosphate-pebble conglomerate, micritic, thin; restricted to basal part of Castle Hayne Formation in southeastern counties 1532TRc Triassic Basins Wadesboro Subbasin Newark Supergroup Sedimentary Rocks Chatham Group, Undivided Phanerozioc Mesozoic Triassic none none 4 4.07858447459e+003 8.80430786825e+005Conglomerate, fanglomerate, sandstone, and mudstone. Conglomerate and fanglomerate shown by pattern 1533Qp Coastal Plain Coastal Plain Quaternary Surficial deposits Surficial deposits, undivided Phanerozioc Cenozoic Quaternary none none 14 1.53198228846e+003 1.55442786756e+005Sand, clay, gravel, and peat deposited in marine, fluvial, eolian, and lacustrine environments. Quaternary deposits not shown at altitudes greater than approximately 25 feet above mean sea level (Suffolk Scarp, in part) 1534Km Coastal Plain Coastal Plain Cretaceous Sedimentary Rocks Middendorf Formation Phanerozioc Mesozoic Cretaceous none none 2 9.26024645784e+003 3.21862140439e+006Sand, sandstone, and mudstone, gray to pale gray with an orange cast, mottled; clay balls and iron-cemented concretions common, beds laterally discontinous, cross-bedding common 1535CZph Carolina Slate Belt Carolina Slate Belt Metamorphic rocks Metamorphic Rocks Phyllite and schist Proterozoic-PhanerozoicLater Proterozoic-PaleozoicLate Proterozoic-Cambriannone none 1 7.57721938352e+004 3.00523291806e+007Locally laminated and pyritic; includes phyllonite, sheared fine-grained metasediment, and metavolcanic rock. In Lilesville granite aureole, includes hornfels (CZph1), and biotite gneiss and schist (CZbg) 1536TRc Triassic Basins Wadesboro Subbasin Newark Supergroup Sedimentary Rocks Chatham Group, Undivided Phanerozioc Mesozoic Triassic none none 4 3.86255559231e+004 2.45495734256e+007Conglomerate, fanglomerate, sandstone, and mudstone. Conglomerate and fanglomerate shown by pattern 1537Tp Coastal Plain Coastal Plain Tertiary Sedimentary Rocks Pinehurst Formation Phanerozioc Cenozoic Tertiary none none 13 2.30540224647e+004 1.34822748752e+007Sand, medium- to coarse-grained, crossbedding and rhythmic bands of clayey sand common, unconsolidated 1538Kb Coastal Plain Coastal Plain Cretaceous Sedimentary Rocks Black Creek Formation Phanerozioc Mesozoic Cretaceous none none 3 3.31124920163e+004 5.96317516218e+007Clay, gray to black, lignitic; contains thin beds and laminae of fine-grained micaceous sand and thick lenses of cross-bedded sand. Glauconitic, fossiliferous clayey sand lenses in upper part 1539Tec Coastal Plain Coastal Plain Tertiary Sedimentary Rocks Comfort Member and New Hanover Member, Undivided Phanerozioc Cenozoic Tertiary none none 6 1.13049662655e+004 8.43098154643e+006Comfort Member: Bryozoan-echinoid skeletal limestone, locally dolomitized, solution cavities common. New Hanover Member: Phosphate-pebble conglomerate, micritic, thin; restricted to basal part of Castle Hayne Formation in southeastern counties 1540Km Coastal Plain Coastal Plain Cretaceous Sedimentary Rocks Middendorf Formation Phanerozioc Mesozoic Cretaceous none none 2 1.82415807504e+003 2.57387831084e+005Sand, sandstone, and mudstone, gray to pale gray with an orange cast, mottled; clay balls and iron-cemented concretions common, beds laterally discontinous, cross-bedding common 1541CZmd Carolina Slate Belt Carolina Slate Belt Metamorphic rocks Metamorphic Rocks Metamudstone and meta-argillite Proterozoic-PhanerozoicLater Proterozoic-PaleozoicLate Proterozoic-Cambriannone none 2 2.96601383367e+003 4.52181043484e+005Thin to thick bedded; bedding plane and axial-planar cleavage common; interbedded with metasandstone, metaconglomerate, and metavolcanic rock. CZmd3 - Floyd Church Formation, CZmd2 - Cid Formation, CZmd1 - Tillery Formation: (southwest of Asheboro) 1542CZmd Carolina Slate Belt Carolina Slate Belt Metamorphic rocks Metamorphic Rocks Metamudstone and meta-argillite Proterozoic-PhanerozoicLater Proterozoic-PaleozoicLate Proterozoic-Cambriannone none 8 1.25689466395e+004 3.12648689767e+006Thin to thick bedded; bedding plane and axial-planar cleavage common; interbedded with metasandstone, metaconglomerate, and metavolcanic rock. CZmd3 - Floyd Church Formation, CZmd2 - Cid Formation, CZmd1 - Tillery Formation: (southwest of Asheboro) 1543Qp Coastal Plain Coastal Plain Quaternary Surficial deposits Surficial deposits, undivided Phanerozioc Cenozoic Quaternary none none 14 1.71115566270e+003 1.70080919331e+005Sand, clay, gravel, and peat deposited in marine, fluvial, eolian, and lacustrine environments. Quaternary deposits not shown at altitudes greater than approximately 25 feet above mean sea level (Suffolk Scarp, in part) 1544TRc Triassic Basins Wadesboro Subbasin Newark Supergroup Sedimentary Rocks Chatham Group, Undivided Phanerozioc Mesozoic Triassic none none 4 3.79503153915e+003 6.70200540159e+005Conglomerate, fanglomerate, sandstone, and mudstone. Conglomerate and fanglomerate shown by pattern 1545Qp Coastal Plain Coastal Plain Quaternary Surficial deposits Surficial deposits, undivided Phanerozioc Cenozoic Quaternary none none 14 2.38070312718e+003 2.45467624853e+005Sand, clay, gravel, and peat deposited in marine, fluvial, eolian, and lacustrine environments. Quaternary deposits not shown at altitudes greater than approximately 25 feet above mean sea level (Suffolk Scarp, in part) 1546Km Coastal Plain Coastal Plain Cretaceous Sedimentary Rocks Middendorf Formation Phanerozioc Mesozoic Cretaceous none none 2 2.47684351829e+003 3.81660353031e+005Sand, sandstone, and mudstone, gray to pale gray with an orange cast, mottled; clay balls and iron-cemented concretions common, beds laterally discontinous, cross-bedding common 1547Qp Coastal Plain Coastal Plain Quaternary Surficial deposits Surficial deposits, undivided Phanerozioc Cenozoic Quaternary none none 14 2.04874182500e+003 2.86342120035e+005Sand, clay, gravel, and peat deposited in marine, fluvial, eolian, and lacustrine environments. Quaternary deposits not shown at altitudes greater than approximately 25 feet above mean sea level (Suffolk Scarp, in part) 1548Qp Coastal Plain Coastal Plain Quaternary Surficial deposits Surficial deposits, undivided Phanerozioc Cenozoic Quaternary none none 14 2.13070991607e+003 2.63778851072e+005Sand, clay, gravel, and peat deposited in marine, fluvial, eolian, and lacustrine environments. Quaternary deposits not shown at altitudes greater than approximately 25 feet above mean sea level (Suffolk Scarp, in part) 1549Tp Coastal Plain Coastal Plain Tertiary Sedimentary Rocks Pinehurst Formation Phanerozioc Cenozoic Tertiary none none 13 3.84243964714e+004 1.82880711888e+007Sand, medium- to coarse-grained, crossbedding and rhythmic bands of clayey sand common, unconsolidated 1550Qp Coastal Plain Coastal Plain Quaternary Surficial deposits Surficial deposits, undivided Phanerozioc Cenozoic Quaternary none none 14 1.15950733055e+004 2.05561101784e+006Sand, clay, gravel, and peat deposited in marine, fluvial, eolian, and lacustrine environments. Quaternary deposits not shown at altitudes greater than approximately 25 feet above mean sea level (Suffolk Scarp, in part) 1551Tob Coastal Plain Coastal Plain Tertiary Sedimentary Rocks Belgrade Formation, Undivided Phanerozioc Cenozoic Tertiary none none 9 1.90134055255e+005 5.21371473661e+008Pollocksville Member: Oyster-shell mounds in tan to orange sand matrix, indurated locally. Haywood Landing Member: Fossiliferous clayey sand, gray to brown. Members grade into each other laterally 1552Qp Coastal Plain Coastal Plain Quaternary Surficial deposits Surficial deposits, undivided Phanerozioc Cenozoic Quaternary none none 14 1.20394008372e+003 1.03116448909e+005Sand, clay, gravel, and peat deposited in marine, fluvial, eolian, and lacustrine environments. Quaternary deposits not shown at altitudes greater than approximately 25 feet above mean sea level (Suffolk Scarp, in part) 1564PPg Carolina Slate Belt Carolina Slate Belt Intrusive Rocks Intrusive Rocks Granitic rock Phanerozioc Paleozoic Pennsylvanian-Permian 265-325 11 7 2.12188653316e+005 1.90873685909e+008Megacrystic to equigranular. Lilesville granite 1565Qp Coastal Plain Coastal Plain Quaternary Surficial deposits Surficial deposits, undivided Phanerozioc Cenozoic Quaternary none none 14 3.37994856006e+003 4.29344236753e+005Sand, clay, gravel, and peat deposited in marine, fluvial, eolian, and lacustrine environments. Quaternary deposits not shown at altitudes greater than approximately 25 feet above mean sea level (Suffolk Scarp, in part) 1566Qp Coastal Plain Coastal Plain Quaternary Surficial deposits Surficial deposits, undivided Phanerozioc Cenozoic Quaternary none none 14 1.93218368079e+004 3.22789341936e+006Sand, clay, gravel, and peat deposited in marine, fluvial, eolian, and lacustrine environments. Quaternary deposits not shown at altitudes greater than approximately 25 feet above mean sea level (Suffolk Scarp, in part) 1567Tt Coastal Plain Coastal Plain Tertiary Sedimentary Rocks Terrace deposites and upland sediment Phanerozioc Cenozoic Tertiary none none 12 7.13174616054e+003 2.03357612368e+006Gravel, clayey sand, and sand, minor iron-oxide cemented sandstone 1568CZph Carolina Slate Belt Carolina Slate Belt Metamorphic rocks Metamorphic Rocks Phyllite and schist Proterozoic-PhanerozoicLater Proterozoic-PaleozoicLate Proterozoic-Cambriannone none 1 3.77916924588e+003 6.08584413845e+005Locally laminated and pyritic; includes phyllonite, sheared fine-grained metasediment, and metavolcanic rock. In Lilesville granite aureole, includes hornfels (CZph1), and biotite gneiss and schist (CZbg) 1569Tp Coastal Plain Coastal Plain Tertiary Sedimentary Rocks Pinehurst Formation Phanerozioc Cenozoic Tertiary none none 13 2.84685841326e+005 1.52853697929e+008Sand, medium- to coarse-grained, crossbedding and rhythmic bands of clayey sand common, unconsolidated 1570Qp Coastal Plain Coastal Plain Quaternary Surficial deposits Surficial deposits, undivided Phanerozioc Cenozoic Quaternary none none 14 1.06105017713e+003 5.25746235313e+004Sand, clay, gravel, and peat deposited in marine, fluvial, eolian, and lacustrine environments. Quaternary deposits not shown at altitudes greater than approximately 25 feet above mean sea level (Suffolk Scarp, in part) 1571Km Coastal Plain Coastal Plain Cretaceous Sedimentary Rocks Middendorf Formation Phanerozioc Mesozoic Cretaceous none none 2 2.59489139831e+003 4.51327625047e+005Sand, sandstone, and mudstone, gray to pale gray with an orange cast, mottled; clay balls and iron-cemented concretions common, beds laterally discontinous, cross-bedding common 1572Qp Coastal Plain Coastal Plain Quaternary Surficial deposits Surficial deposits, undivided Phanerozioc Cenozoic Quaternary none none 14 1.01930992683e+003 6.59591223470e+004Sand, clay, gravel, and peat deposited in marine, fluvial, eolian, and lacustrine environments. Quaternary deposits not shown at altitudes greater than approximately 25 feet above mean sea level (Suffolk Scarp, in part) 1573CZph Carolina Slate Belt Carolina Slate Belt Metamorphic rocks Metamorphic Rocks Phyllite and schist Proterozoic-PhanerozoicLater Proterozoic-PaleozoicLate Proterozoic-Cambriannone none 1 4.32074717553e+003 9.31834679732e+005Locally laminated and pyritic; includes phyllonite, sheared fine-grained metasediment, and metavolcanic rock. In Lilesville granite aureole, includes hornfels (CZph1), and biotite gneiss and schist (CZbg) 1574Qp Coastal Plain Coastal Plain Quaternary Surficial deposits Surficial deposits, undivided Phanerozioc Cenozoic Quaternary none none 14 1.03399876718e+003 7.19434722563e+004Sand, clay, gravel, and peat deposited in marine, fluvial, eolian, and lacustrine environments. Quaternary deposits not shown at altitudes greater than approximately 25 feet above mean sea level (Suffolk Scarp, in part) 1586Tpy Coastal Plain Coastal Plain Tertiary Sedimentary Rocks Yorktown Formation and Duplin Formation, Undivided Phanerozioc Cenozoic Tertiary none none 10 5.13733142366e+003 2.03106196914e+006Yorktown Formation: Fossiliferous clay with varying amounts of fine-grained sand, bluish gray, shell material commonly concentrated in lenses; mainly in area north of Neuse River. Duplin Formation: Shelly, medium- to coarse-grained sand, sandy marl, and limestone, bluish gray; mainly in area south of Neuse River 1587Qp Coastal Plain Coastal Plain Quaternary Surficial deposits Surficial deposits, undivided Phanerozioc Cenozoic Quaternary none none 14 2.00788645789e+004 3.18818596370e+006Sand, clay, gravel, and peat deposited in marine, fluvial, eolian, and lacustrine environments. Quaternary deposits not shown at altitudes greater than approximately 25 feet above mean sea level (Suffolk Scarp, in part) 1588Tec Coastal Plain Coastal Plain Tertiary Sedimentary Rocks Comfort Member and New Hanover Member, Undivided Phanerozioc Cenozoic Tertiary none none 6 7.65654615787e+003 3.13737011914e+006Comfort Member: Bryozoan-echinoid skeletal limestone, locally dolomitized, solution cavities common. New Hanover Member: Phosphate-pebble conglomerate, micritic, thin; restricted to basal part of Castle Hayne Formation in southeastern counties 1589CZfv Carolina Slate Belt Carolina Slate Belt Metamorphic rocks Metamorphic Rocks Felsic metavolcanic rock Proterozoic-PhanerozoicLater Proterozoic-PaleozoicLate Proterozoic-Cambriannone none 3 8.24232416330e+004 1.74513670934e+008Metamorphosed dacitic to rhyolitic flows and tuffs, light gray to greenish gray; interbedded with mafic and intermediate metavolcanic rock, meta-argillite, and metamudstone. CZfv2 - Cid Formation (southwest of Asheboro), CZfv1 - Uwharrie Formation (at Asheboro and to south) 1590Km Coastal Plain Coastal Plain Cretaceous Sedimentary Rocks Middendorf Formation Phanerozioc Mesozoic Cretaceous none none 2 1.07167817651e+004 3.41737108266e+006Sand, sandstone, and mudstone, gray to pale gray with an orange cast, mottled; clay balls and iron-cemented concretions common, beds laterally discontinous, cross-bedding common 1591Qp Coastal Plain Coastal Plain Quaternary Surficial deposits Surficial deposits, undivided Phanerozioc Cenozoic Quaternary none none 14 1.07130151674e+003 7.96770685283e+004Sand, clay, gravel, and peat deposited in marine, fluvial, eolian, and lacustrine environments. Quaternary deposits not shown at altitudes greater than approximately 25 feet above mean sea level (Suffolk Scarp, in part) 1592Qp Coastal Plain Coastal Plain Quaternary Surficial deposits Surficial deposits, undivided Phanerozioc Cenozoic Quaternary none none 14 2.26491433400e+003 2.62918410140e+005Sand, clay, gravel, and peat deposited in marine, fluvial, eolian, and lacustrine environments. Quaternary deposits not shown at altitudes greater than approximately 25 feet above mean sea level (Suffolk Scarp, in part) 1593CZph Carolina Slate Belt Carolina Slate Belt Metamorphic rocks Metamorphic Rocks Phyllite and schist Proterozoic-PhanerozoicLater Proterozoic-PaleozoicLate Proterozoic-Cambriannone none 1 1.67938033055e+004 7.34659736667e+006Locally laminated and pyritic; includes phyllonite, sheared fine-grained metasediment, and metavolcanic rock. In Lilesville granite aureole, includes hornfels (CZph1), and biotite gneiss and schist (CZbg) 1594Km Coastal Plain Coastal Plain Cretaceous Sedimentary Rocks Middendorf Formation Phanerozioc Mesozoic Cretaceous none none 2 2.38350538873e+003 3.72597426986e+005Sand, sandstone, and mudstone, gray to pale gray with an orange cast, mottled; clay balls and iron-cemented concretions common, beds laterally discontinous, cross-bedding common 1595CZmd Carolina Slate Belt Carolina Slate Belt Metamorphic rocks Metamorphic Rocks Metamudstone and meta-argillite Proterozoic-PhanerozoicLater Proterozoic-PaleozoicLate Proterozoic-Cambriannone none 8 1.39808399530e+004 4.60429370848e+006Thin to thick bedded; bedding plane and axial-planar cleavage common; interbedded with metasandstone, metaconglomerate, and metavolcanic rock. CZmd3 - Floyd Church Formation, CZmd2 - Cid Formation, CZmd1 - Tillery Formation: (southwest of Asheboro) 1596CZbg Raleigh Belt Raleigh Belt Metamorphic rocks Metamorphic Rocks Biotite gneiss and schist Proterozoic-PhanerozoicLater Proterozoic-PaleozoicLate Proterozoic-Cambriannone none 6 5.70935622982e+004 4.69580550695e+007Inequigranular and megacrystic; in places contains garnet; interlayered and gradational with mica schist and amphibolite; includes small masses of granitic rock 1597CZg Carolina Slate Belt Carolina Slate Belt Intrusive Rocks Intrusive Rocks Metamorphosed granitic rock Proterozoic-PhanerozoicLater Proterozoic-PaleozoicLate Proterozoic-Cambrian520-650 3,21,9,23,28,15 1 1.46415714654e+004 1.33574554501e+007Megacrystic, well foliated; locally contains hornblende. Chapel Hill, Chatham, Farrington, Meadow Flats, Mt. Moriah, Parks Crossroads plutons, and Roxboro and Vance County suites 1598Km Coastal Plain Coastal Plain Cretaceous Sedimentary Rocks Middendorf Formation Phanerozioc Mesozoic Cretaceous none none 2 1.69634246377e+003 1.84092162399e+005Sand, sandstone, and mudstone, gray to pale gray with an orange cast, mottled; clay balls and iron-cemented concretions common, beds laterally discontinous, cross-bedding common 1599CZmd Carolina Slate Belt Carolina Slate Belt Metamorphic rocks Metamorphic Rocks Metamudstone and meta-argillite Proterozoic-PhanerozoicLater Proterozoic-PaleozoicLate Proterozoic-Cambriannone none 8 2.59109723349e+003 3.40154338604e+005Thin to thick bedded; bedding plane and axial-planar cleavage common; interbedded with metasandstone, metaconglomerate, and metavolcanic rock. CZmd3 - Floyd Church Formation, CZmd2 - Cid Formation, CZmd1 - Tillery Formation: (southwest of Asheboro) 1600Km Coastal Plain Coastal Plain Cretaceous Sedimentary Rocks Middendorf Formation Phanerozioc Mesozoic Cretaceous none none 2 4.95830482132e+003 1.33384590423e+006Sand, sandstone, and mudstone, gray to pale gray with an orange cast, mottled; clay balls and iron-cemented concretions common, beds laterally discontinous, cross-bedding common 1601Km Coastal Plain Coastal Plain Cretaceous Sedimentary Rocks Middendorf Formation Phanerozioc Mesozoic Cretaceous none none 2 2.87849027152e+003 4.48074703306e+005Sand, sandstone, and mudstone, gray to pale gray with an orange cast, mottled; clay balls and iron-cemented concretions common, beds laterally discontinous, cross-bedding common 1602Km Coastal Plain Coastal Plain Cretaceous Sedimentary Rocks Middendorf Formation Phanerozioc Mesozoic Cretaceous none none 2 3.08260501352e+003 4.62859524408e+005Sand, sandstone, and mudstone, gray to pale gray with an orange cast, mottled; clay balls and iron-cemented concretions common, beds laterally discontinous, cross-bedding common 1603Km Coastal Plain Coastal Plain Cretaceous Sedimentary Rocks Middendorf Formation Phanerozioc Mesozoic Cretaceous none none 2 6.52673100379e+004 3.29994025393e+007Sand, sandstone, and mudstone, gray to pale gray with an orange cast, mottled; clay balls and iron-cemented concretions common, beds laterally discontinous, cross-bedding common 1604Tp Coastal Plain Coastal Plain Tertiary Sedimentary Rocks Pinehurst Formation Phanerozioc Cenozoic Tertiary none none 13 7.48571946319e+003 3.31357710209e+006Sand, medium- to coarse-grained, crossbedding and rhythmic bands of clayey sand common, unconsolidated 1605CZmd Carolina Slate Belt Carolina Slate Belt Metamorphic rocks Metamorphic Rocks Metamudstone and meta-argillite Proterozoic-PhanerozoicLater Proterozoic-PaleozoicLate Proterozoic-Cambriannone none 8 2.75012792782e+003 3.89296774388e+005Thin to thick bedded; bedding plane and axial-planar cleavage common; interbedded with metasandstone, metaconglomerate, and metavolcanic rock. CZmd3 - Floyd Church Formation, CZmd2 - Cid Formation, CZmd1 - Tillery Formation: (southwest of Asheboro) 1606Km Coastal Plain Coastal Plain Cretaceous Sedimentary Rocks Middendorf Formation Phanerozioc Mesozoic Cretaceous none none 2 2.55503786859e+003 4.93592038713e+005Sand, sandstone, and mudstone, gray to pale gray with an orange cast, mottled; clay balls and iron-cemented concretions common, beds laterally discontinous, cross-bedding common 1607Qp Coastal Plain Coastal Plain Quaternary Surficial deposits Surficial deposits, undivided Phanerozioc Cenozoic Quaternary none none 14 1.04983276153e+005 2.58670429115e+007Sand, clay, gravel, and peat deposited in marine, fluvial, eolian, and lacustrine environments. Quaternary deposits not shown at altitudes greater than approximately 25 feet above mean sea level (Suffolk Scarp, in part) 1608Km Coastal Plain Coastal Plain Cretaceous Sedimentary Rocks Middendorf Formation Phanerozioc Mesozoic Cretaceous none none 2 1.09598462544e+004 3.06157694178e+006Sand, sandstone, and mudstone, gray to pale gray with an orange cast, mottled; clay balls and iron-cemented concretions common, beds laterally discontinous, cross-bedding common 1609CZmd Carolina Slate Belt Carolina Slate Belt Metamorphic rocks Metamorphic Rocks Metamudstone and meta-argillite Proterozoic-PhanerozoicLater Proterozoic-PaleozoicLate Proterozoic-Cambriannone none 8 9.04278991728e+004 8.37211187077e+007Thin to thick bedded; bedding plane and axial-planar cleavage common; interbedded with metasandstone, metaconglomerate, and metavolcanic rock. CZmd3 - Floyd Church Formation, CZmd2 - Cid Formation, CZmd1 - Tillery Formation: (southwest of Asheboro) 1610Tt Coastal Plain Coastal Plain Tertiary Sedimentary Rocks Terrace deposites and upland sediment Phanerozioc Cenozoic Tertiary none none 12 1.25317405379e+004 4.87336298247e+006Gravel, clayey sand, and sand, minor iron-oxide cemented sandstone 1611CZph Carolina Slate Belt Carolina Slate Belt Metamorphic rocks Metamorphic Rocks Phyllite and schist Proterozoic-PhanerozoicLater Proterozoic-PaleozoicLate Proterozoic-Cambriannone none 1 2.53566565089e+003 3.96019233722e+005Locally laminated and pyritic; includes phyllonite, sheared fine-grained metasediment, and metavolcanic rock. In Lilesville granite aureole, includes hornfels (CZph1), and biotite gneiss and schist (CZbg) 1612Km Coastal Plain Coastal Plain Cretaceous Sedimentary Rocks Middendorf Formation Phanerozioc Mesozoic Cretaceous none none 2 7.72024875352e+004 7.63127656930e+007Sand, sandstone, and mudstone, gray to pale gray with an orange cast, mottled; clay balls and iron-cemented concretions common, beds laterally discontinous, cross-bedding common 1613PzZm Carolina Slate Belt Carolina Slate Belt Intrusive Rocks Intrusive Rocks Metamorphosed mafic rock Phanerozioc Paleozoic Permian none none 3 1.98450420578e+004 2.39115634553e+007Metagabbro, metadiorite, and mafic plutonic-volcanic complexes 1614CZph Carolina Slate Belt Carolina Slate Belt Metamorphic rocks Metamorphic Rocks Phyllite and schist Proterozoic-PhanerozoicLater Proterozoic-PaleozoicLate Proterozoic-Cambriannone none 1 2.76993893418e+003 4.65784930438e+005Locally laminated and pyritic; includes phyllonite, sheared fine-grained metasediment, and metavolcanic rock. In Lilesville granite aureole, includes hornfels (CZph1), and biotite gneiss and schist (CZbg) 1615CZph Carolina Slate Belt Carolina Slate Belt Metamorphic rocks Metamorphic Rocks Phyllite and schist Proterozoic-PhanerozoicLater Proterozoic-PaleozoicLate Proterozoic-Cambriannone none 1 5.98626282313e+003 1.77100380377e+006Locally laminated and pyritic; includes phyllonite, sheared fine-grained metasediment, and metavolcanic rock. In Lilesville granite aureole, includes hornfels (CZph1), and biotite gneiss and schist (CZbg) 1616CZph Carolina Slate Belt Carolina Slate Belt Metamorphic rocks Metamorphic Rocks Phyllite and schist Proterozoic-PhanerozoicLater Proterozoic-PaleozoicLate Proterozoic-Cambriannone none 1 7.89740511240e+003 2.24065469561e+006Locally laminated and pyritic; includes phyllonite, sheared fine-grained metasediment, and metavolcanic rock. In Lilesville granite aureole, includes hornfels (CZph1), and biotite gneiss and schist (CZbg) 1617CZmd Carolina Slate Belt Carolina Slate Belt Metamorphic rocks Metamorphic Rocks Metamudstone and meta-argillite Proterozoic-PhanerozoicLater Proterozoic-PaleozoicLate Proterozoic-Cambriannone none 8 2.56031295351e+003 3.86897247567e+005Thin to thick bedded; bedding plane and axial-planar cleavage common; interbedded with metasandstone, metaconglomerate, and metavolcanic rock. CZmd3 - Floyd Church Formation, CZmd2 - Cid Formation, CZmd1 - Tillery Formation: (southwest of Asheboro) 1618CZph Carolina Slate Belt Carolina Slate Belt Metamorphic rocks Metamorphic Rocks Phyllite and schist Proterozoic-PhanerozoicLater Proterozoic-PaleozoicLate Proterozoic-Cambriannone none 1 3.87347979683e+003 8.50284010999e+005Locally laminated and pyritic; includes phyllonite, sheared fine-grained metasediment, and metavolcanic rock. In Lilesville granite aureole, includes hornfels (CZph1), and biotite gneiss and schist (CZbg) 1619Tec Coastal Plain Coastal Plain Tertiary Sedimentary Rocks Comfort Member and New Hanover Member, Undivided Phanerozioc Cenozoic Tertiary none none 6 4.75311247437e+003 1.55655162771e+006Comfort Member: Bryozoan-echinoid skeletal limestone, locally dolomitized, solution cavities common. New Hanover Member: Phosphate-pebble conglomerate, micritic, thin; restricted to basal part of Castle Hayne Formation in southeastern counties 1620CZmd Carolina Slate Belt Carolina Slate Belt Metamorphic rocks Metamorphic Rocks Metamudstone and meta-argillite Proterozoic-PhanerozoicLater Proterozoic-PaleozoicLate Proterozoic-Cambriannone none 8 2.83158803952e+003 4.59620931844e+005Thin to thick bedded; bedding plane and axial-planar cleavage common; interbedded with metasandstone, metaconglomerate, and metavolcanic rock. CZmd3 - Floyd Church Formation, CZmd2 - Cid Formation, CZmd1 - Tillery Formation: (southwest of Asheboro) 1621Km Coastal Plain Coastal Plain Cretaceous Sedimentary Rocks Middendorf Formation Phanerozioc Mesozoic Cretaceous none none 2 2.12176994545e+003 3.26945635165e+005Sand, sandstone, and mudstone, gray to pale gray with an orange cast, mottled; clay balls and iron-cemented concretions common, beds laterally discontinous, cross-bedding common 1622CZmd Carolina Slate Belt Carolina Slate Belt Metamorphic rocks Metamorphic Rocks Metamudstone and meta-argillite Proterozoic-PhanerozoicLater Proterozoic-PaleozoicLate Proterozoic-Cambriannone none 8 5.38686885984e+003 1.02059305121e+006Thin to thick bedded; bedding plane and axial-planar cleavage common; interbedded with metasandstone, metaconglomerate, and metavolcanic rock. CZmd3 - Floyd Church Formation, CZmd2 - Cid Formation, CZmd1 - Tillery Formation: (southwest of Asheboro) 1623CZph Carolina Slate Belt Carolina Slate Belt Metamorphic rocks Metamorphic Rocks Phyllite and schist Proterozoic-PhanerozoicLater Proterozoic-PaleozoicLate Proterozoic-Cambriannone none 1 2.96154091265e+003 5.92580307548e+005Locally laminated and pyritic; includes phyllonite, sheared fine-grained metasediment, and metavolcanic rock. In Lilesville granite aureole, includes hornfels (CZph1), and biotite gneiss and schist (CZbg) 1624CZph Carolina Slate Belt Carolina Slate Belt Metamorphic rocks Metamorphic Rocks Phyllite and schist Proterozoic-PhanerozoicLater Proterozoic-PaleozoicLate Proterozoic-Cambriannone none 1 1.01976344482e+004 3.35947459278e+006Locally laminated and pyritic; includes phyllonite, sheared fine-grained metasediment, and metavolcanic rock. In Lilesville granite aureole, includes hornfels (CZph1), and biotite gneiss and schist (CZbg) 1625CZph Carolina Slate Belt Carolina Slate Belt Metamorphic rocks Metamorphic Rocks Phyllite and schist Proterozoic-PhanerozoicLater Proterozoic-PaleozoicLate Proterozoic-Cambriannone none 1 4.21377642691e+003 9.32457236290e+005Locally laminated and pyritic; includes phyllonite, sheared fine-grained metasediment, and metavolcanic rock. In Lilesville granite aureole, includes hornfels (CZph1), and biotite gneiss and schist (CZbg) 1626Tpy Coastal Plain Coastal Plain Tertiary Sedimentary Rocks Yorktown Formation and Duplin Formation, Undivided Phanerozioc Cenozoic Tertiary none none 10 1.24463255245e+004 1.03755025975e+007Yorktown Formation: Fossiliferous clay with varying amounts of fine-grained sand, bluish gray, shell material commonly concentrated in lenses; mainly in area north of Neuse River. Duplin Formation: Shelly, medium- to coarse-grained sand, sandy marl, and limestone, bluish gray; mainly in area south of Neuse River 1627Tt Coastal Plain Coastal Plain Tertiary Sedimentary Rocks Terrace deposites and upland sediment Phanerozioc Cenozoic Tertiary none none 12 5.91931648180e+003 1.15055388987e+006Gravel, clayey sand, and sand, minor iron-oxide cemented sandstone 1628CZmd Carolina Slate Belt Carolina Slate Belt Metamorphic rocks Metamorphic Rocks Metamudstone and meta-argillite Proterozoic-PhanerozoicLater Proterozoic-PaleozoicLate Proterozoic-Cambriannone none 8 4.16970066803e+004 2.57240286283e+007Thin to thick bedded; bedding plane and axial-planar cleavage common; interbedded with metasandstone, metaconglomerate, and metavolcanic rock. CZmd3 - Floyd Church Formation, CZmd2 - Cid Formation, CZmd1 - Tillery Formation: (southwest of Asheboro) 1629Qp Coastal Plain Coastal Plain Quaternary Surficial deposits Surficial deposits, undivided Phanerozioc Cenozoic Quaternary none none 14 2.42253387664e+003 3.27331304578e+005Sand, clay, gravel, and peat deposited in marine, fluvial, eolian, and lacustrine environments. Quaternary deposits not shown at altitudes greater than approximately 25 feet above mean sea level (Suffolk Scarp, in part) 1630CZph Carolina Slate Belt Carolina Slate Belt Metamorphic rocks Metamorphic Rocks Phyllite and schist Proterozoic-PhanerozoicLater Proterozoic-PaleozoicLate Proterozoic-Cambriannone none 1 1.38452861916e+004 5.30932145081e+006Locally laminated and pyritic; includes phyllonite, sheared fine-grained metasediment, and metavolcanic rock. In Lilesville granite aureole, includes hornfels (CZph1), and biotite gneiss and schist (CZbg) 1631Km Coastal Plain Coastal Plain Cretaceous Sedimentary Rocks Middendorf Formation Phanerozioc Mesozoic Cretaceous none none 2 4.38792149118e+003 9.51074511764e+005Sand, sandstone, and mudstone, gray to pale gray with an orange cast, mottled; clay balls and iron-cemented concretions common, beds laterally discontinous, cross-bedding common 1632Qp Coastal Plain Coastal Plain Quaternary Surficial deposits Surficial deposits, undivided Phanerozioc Cenozoic Quaternary none none 14 1.02140490191e+003 7.22121547656e+004Sand, clay, gravel, and peat deposited in marine, fluvial, eolian, and lacustrine environments. Quaternary deposits not shown at altitudes greater than approximately 25 feet above mean sea level (Suffolk Scarp, in part) 1633Qp Coastal Plain Coastal Plain Quaternary Surficial deposits Surficial deposits, undivided Phanerozioc Cenozoic Quaternary none none 14 1.71045756409e+003 1.52512364650e+005Sand, clay, gravel, and peat deposited in marine, fluvial, eolian, and lacustrine environments. Quaternary deposits not shown at altitudes greater than approximately 25 feet above mean sea level (Suffolk Scarp, in part) 1634CZmd Carolina Slate Belt Carolina Slate Belt Metamorphic rocks Metamorphic Rocks Metamudstone and meta-argillite Proterozoic-PhanerozoicLater Proterozoic-PaleozoicLate Proterozoic-Cambriannone none 8 9.60523069022e+003 4.32132916478e+006Thin to thick bedded; bedding plane and axial-planar cleavage common; interbedded with metasandstone, metaconglomerate, and metavolcanic rock. CZmd3 - Floyd Church Formation, CZmd2 - Cid Formation, CZmd1 - Tillery Formation: (southwest of Asheboro) 1635Km Coastal Plain Coastal Plain Cretaceous Sedimentary Rocks Middendorf Formation Phanerozioc Mesozoic Cretaceous none none 2 2.39094761734e+003 3.99493448773e+005Sand, sandstone, and mudstone, gray to pale gray with an orange cast, mottled; clay balls and iron-cemented concretions common, beds laterally discontinous, cross-bedding common 1636Km Coastal Plain Coastal Plain Cretaceous Sedimentary Rocks Middendorf Formation Phanerozioc Mesozoic Cretaceous none none 2 2.41218019164e+003 3.82033274654e+005Sand, sandstone, and mudstone, gray to pale gray with an orange cast, mottled; clay balls and iron-cemented concretions common, beds laterally discontinous, cross-bedding common 1637Tec Coastal Plain Coastal Plain Tertiary Sedimentary Rocks Comfort Member and New Hanover Member, Undivided Phanerozioc Cenozoic Tertiary none none 6 1.36660806557e+004 9.87338210002e+006Comfort Member: Bryozoan-echinoid skeletal limestone, locally dolomitized, solution cavities common. New Hanover Member: Phosphate-pebble conglomerate, micritic, thin; restricted to basal part of Castle Hayne Formation in southeastern counties 1638Qp Coastal Plain Coastal Plain Quaternary Surficial deposits Surficial deposits, undivided Phanerozioc Cenozoic Quaternary none none 14 5.87296045630e+003 7.58091331544e+005Sand, clay, gravel, and peat deposited in marine, fluvial, eolian, and lacustrine environments. Quaternary deposits not shown at altitudes greater than approximately 25 feet above mean sea level (Suffolk Scarp, in part) 1639Qp Coastal Plain Coastal Plain Quaternary Surficial deposits Surficial deposits, undivided Phanerozioc Cenozoic Quaternary none none 14 1.41960316984e+003 1.26088632594e+005Sand, clay, gravel, and peat deposited in marine, fluvial, eolian, and lacustrine environments. Quaternary deposits not shown at altitudes greater than approximately 25 feet above mean sea level (Suffolk Scarp, in part) 1640Qp Coastal Plain Coastal Plain Quaternary Surficial deposits Surficial deposits, undivided Phanerozioc Cenozoic Quaternary none none 14 1.83839851037e+003 1.89292669475e+005Sand, clay, gravel, and peat deposited in marine, fluvial, eolian, and lacustrine environments. Quaternary deposits not shown at altitudes greater than approximately 25 feet above mean sea level (Suffolk Scarp, in part) 1641Qp Coastal Plain Coastal Plain Quaternary Surficial deposits Surficial deposits, undivided Phanerozioc Cenozoic Quaternary none none 14 1.71527477122e+003 1.58263396801e+005Sand, clay, gravel, and peat deposited in marine, fluvial, eolian, and lacustrine environments. Quaternary deposits not shown at altitudes greater than approximately 25 feet above mean sea level (Suffolk Scarp, in part) 1642Qp Coastal Plain Coastal Plain Quaternary Surficial deposits Surficial deposits, undivided Phanerozioc Cenozoic Quaternary none none 14 2.67261379304e+003 3.31795971366e+005Sand, clay, gravel, and peat deposited in marine, fluvial, eolian, and lacustrine environments. Quaternary deposits not shown at altitudes greater than approximately 25 feet above mean sea level (Suffolk Scarp, in part) 1643Qp Coastal Plain Coastal Plain Quaternary Surficial deposits Surficial deposits, undivided Phanerozioc Cenozoic Quaternary none none 14 4.11966128407e+003 4.69915961218e+005Sand, clay, gravel, and peat deposited in marine, fluvial, eolian, and lacustrine environments. Quaternary deposits not shown at altitudes greater than approximately 25 feet above mean sea level (Suffolk Scarp, in part) 1644Tpy Coastal Plain Coastal Plain Tertiary Sedimentary Rocks Yorktown Formation and Duplin Formation, Undivided Phanerozioc Cenozoic Tertiary none none 10 1.66947072312e+002 1.13259083437e+003Yorktown Formation: Fossiliferous clay with varying amounts of fine-grained sand, bluish gray, shell material commonly concentrated in lenses; mainly in area north of Neuse River. Duplin Formation: Shelly, medium- to coarse-grained sand, sandy marl, and limestone, bluish gray; mainly in area south of Neuse River 1645Tpy Coastal Plain Coastal Plain Tertiary Sedimentary Rocks Yorktown Formation and Duplin Formation, Undivided Phanerozioc Cenozoic Tertiary none none 10 2.14098632912e+004 1.09305646847e+007Yorktown Formation: Fossiliferous clay with varying amounts of fine-grained sand, bluish gray, shell material commonly concentrated in lenses; mainly in area north of Neuse River. Duplin Formation: Shelly, medium- to coarse-grained sand, sandy marl, and limestone, bluish gray; mainly in area south of Neuse River 1646Qp Coastal Plain Coastal Plain Quaternary Surficial deposits Surficial deposits, undivided Phanerozioc Cenozoic Quaternary none none 14 3.66643331675e+003 3.56796836415e+005Sand, clay, gravel, and peat deposited in marine, fluvial, eolian, and lacustrine environments. Quaternary deposits not shown at altitudes greater than approximately 25 feet above mean sea level (Suffolk Scarp, in part) 1647Qp Coastal Plain Coastal Plain Quaternary Surficial deposits Surficial deposits, undivided Phanerozioc Cenozoic Quaternary none none 14 2.06420300994e+003 2.15370647703e+005Sand, clay, gravel, and peat deposited in marine, fluvial, eolian, and lacustrine environments. Quaternary deposits not shown at altitudes greater than approximately 25 feet above mean sea level (Suffolk Scarp, in part) 1648Qp Coastal Plain Coastal Plain Quaternary Surficial deposits Surficial deposits, undivided Phanerozioc Cenozoic Quaternary none none 14 2.80939988090e+003 3.92433185063e+005Sand, clay, gravel, and peat deposited in marine, fluvial, eolian, and lacustrine environments. Quaternary deposits not shown at altitudes greater than approximately 25 feet above mean sea level (Suffolk Scarp, in part) 1649Qp Coastal Plain Coastal Plain Quaternary Surficial deposits Surficial deposits, undivided Phanerozioc Cenozoic Quaternary none none 14 1.61571627576e+003 1.54467808184e+005Sand, clay, gravel, and peat deposited in marine, fluvial, eolian, and lacustrine environments. Quaternary deposits not shown at altitudes greater than approximately 25 feet above mean sea level (Suffolk Scarp, in part) 1650Tpy Coastal Plain Coastal Plain Tertiary Sedimentary Rocks Yorktown Formation and Duplin Formation, Undivided Phanerozioc Cenozoic Tertiary none none 10 8.73593679977e+003 4.91775065342e+006Yorktown Formation: Fossiliferous clay with varying amounts of fine-grained sand, bluish gray, shell material commonly concentrated in lenses; mainly in area north of Neuse River. Duplin Formation: Shelly, medium- to coarse-grained sand, sandy marl, and limestone, bluish gray; mainly in area south of Neuse River 1651Qp Coastal Plain Coastal Plain Quaternary Surficial deposits Surficial deposits, undivided Phanerozioc Cenozoic Quaternary none none 14 2.68036529456e+003 3.50607135679e+005Sand, clay, gravel, and peat deposited in marine, fluvial, eolian, and lacustrine environments. Quaternary deposits not shown at altitudes greater than approximately 25 feet above mean sea level (Suffolk Scarp, in part) 1652Qp Coastal Plain Coastal Plain Quaternary Surficial deposits Surficial deposits, undivided Phanerozioc Cenozoic Quaternary none none 14 1.82203997763e+003 1.41735923578e+005Sand, clay, gravel, and peat deposited in marine, fluvial, eolian, and lacustrine environments. Quaternary deposits not shown at altitudes greater than approximately 25 feet above mean sea level (Suffolk Scarp, in part) 1653Qp Coastal Plain Coastal Plain Quaternary Surficial deposits Surficial deposits, undivided Phanerozioc Cenozoic Quaternary none none 14 2.02350504879e+003 2.26859261475e+005Sand, clay, gravel, and peat deposited in marine, fluvial, eolian, and lacustrine environments. Quaternary deposits not shown at altitudes greater than approximately 25 feet above mean sea level (Suffolk Scarp, in part) 1654Tpy Coastal Plain Coastal Plain Tertiary Sedimentary Rocks Yorktown Formation and Duplin Formation, Undivided Phanerozioc Cenozoic Tertiary none none 10 1.50078201241e+004 1.67744918524e+007Yorktown Formation: Fossiliferous clay with varying amounts of fine-grained sand, bluish gray, shell material commonly concentrated in lenses; mainly in area north of Neuse River. Duplin Formation: Shelly, medium- to coarse-grained sand, sandy marl, and limestone, bluish gray; mainly in area south of Neuse River 1655Qp Coastal Plain Coastal Plain Quaternary Surficial deposits Surficial deposits, undivided Phanerozioc Cenozoic Quaternary none none 14 2.73608044432e+003 4.16147566537e+005Sand, clay, gravel, and peat deposited in marine, fluvial, eolian, and lacustrine environments. Quaternary deposits not shown at altitudes greater than approximately 25 feet above mean sea level (Suffolk Scarp, in part) 1656Qp Coastal Plain Coastal Plain Quaternary Surficial deposits Surficial deposits, undivided Phanerozioc Cenozoic Quaternary none none 14 1.05821364524e+003 7.38964281655e+004Sand, clay, gravel, and peat deposited in marine, fluvial, eolian, and lacustrine environments. Quaternary deposits not shown at altitudes greater than approximately 25 feet above mean sea level (Suffolk Scarp, in part) 1657Qp Coastal Plain Coastal Plain Quaternary Surficial deposits Surficial deposits, undivided Phanerozioc Cenozoic Quaternary none none 14 1.90741245453e+003 2.03272936141e+005Sand, clay, gravel, and peat deposited in marine, fluvial, eolian, and lacustrine environments. Quaternary deposits not shown at altitudes greater than approximately 25 feet above mean sea level (Suffolk Scarp, in part) 1658Qp Coastal Plain Coastal Plain Quaternary Surficial deposits Surficial deposits, undivided Phanerozioc Cenozoic Quaternary none none 14 2.21521991054e+003 2.46302074287e+005Sand, clay, gravel, and peat deposited in marine, fluvial, eolian, and lacustrine environments. Quaternary deposits not shown at altitudes greater than approximately 25 feet above mean sea level (Suffolk Scarp, in part) 1659Qp Coastal Plain Coastal Plain Quaternary Surficial deposits Surficial deposits, undivided Phanerozioc Cenozoic Quaternary none none 14 1.89000047667e+003 2.06848920087e+005Sand, clay, gravel, and peat deposited in marine, fluvial, eolian, and lacustrine environments. Quaternary deposits not shown at altitudes greater than approximately 25 feet above mean sea level (Suffolk Scarp, in part) 1660Qp Coastal Plain Coastal Plain Quaternary Surficial deposits Surficial deposits, undivided Phanerozioc Cenozoic Quaternary none none 14 2.98336857189e+003 3.72990475814e+005Sand, clay, gravel, and peat deposited in marine, fluvial, eolian, and lacustrine environments. Quaternary deposits not shown at altitudes greater than approximately 25 feet above mean sea level (Suffolk Scarp, in part) 1661Qp Coastal Plain Coastal Plain Quaternary Surficial deposits Surficial deposits, undivided Phanerozioc Cenozoic Quaternary none none 14 2.60846268392e+003 2.42762778969e+005Sand, clay, gravel, and peat deposited in marine, fluvial, eolian, and lacustrine environments. Quaternary deposits not shown at altitudes greater than approximately 25 feet above mean sea level (Suffolk Scarp, in part) 1662Qp Coastal Plain Coastal Plain Quaternary Surficial deposits Surficial deposits, undivided Phanerozioc Cenozoic Quaternary none none 14 1.61711901773e+003 1.20145420216e+005Sand, clay, gravel, and peat deposited in marine, fluvial, eolian, and lacustrine environments. Quaternary deposits not shown at altitudes greater than approximately 25 feet above mean sea level (Suffolk Scarp, in part) 1663Qp Coastal Plain Coastal Plain Quaternary Surficial deposits Surficial deposits, undivided Phanerozioc Cenozoic Quaternary none none 14 1.95734320788e+003 2.06509354044e+005Sand, clay, gravel, and peat deposited in marine, fluvial, eolian, and lacustrine environments. Quaternary deposits not shown at altitudes greater than approximately 25 feet above mean sea level (Suffolk Scarp, in part) 1664Qp Coastal Plain Coastal Plain Quaternary Surficial deposits Surficial deposits, undivided Phanerozioc Cenozoic Quaternary none none 14 1.15515441846e+003 8.62257550308e+004Sand, clay, gravel, and peat deposited in marine, fluvial, eolian, and lacustrine environments. Quaternary deposits not shown at altitudes greater than approximately 25 feet above mean sea level (Suffolk Scarp, in part) 1665Qp Coastal Plain Coastal Plain Quaternary Surficial deposits Surficial deposits, undivided Phanerozioc Cenozoic Quaternary none none 14 7.21724368949e+003 1.46841832231e+006Sand, clay, gravel, and peat deposited in marine, fluvial, eolian, and lacustrine environments. Quaternary deposits not shown at altitudes greater than approximately 25 feet above mean sea level (Suffolk Scarp, in part) 1666Qp Coastal Plain Coastal Plain Quaternary Surficial deposits Surficial deposits, undivided Phanerozioc Cenozoic Quaternary none none 14 3.05943170326e+003 3.21758838834e+005Sand, clay, gravel, and peat deposited in marine, fluvial, eolian, and lacustrine environments. Quaternary deposits not shown at altitudes greater than approximately 25 feet above mean sea level (Suffolk Scarp, in part) 1667Qp Coastal Plain Coastal Plain Quaternary Surficial deposits Surficial deposits, undivided Phanerozioc Cenozoic Quaternary none none 14 2.21489801470e+003 2.05130440684e+005Sand, clay, gravel, and peat deposited in marine, fluvial, eolian, and lacustrine environments. Quaternary deposits not shown at altitudes greater than approximately 25 feet above mean sea level (Suffolk Scarp, in part) 1668Qp Coastal Plain Coastal Plain Quaternary Surficial deposits Surficial deposits, undivided Phanerozioc Cenozoic Quaternary none none 14 3.72970634659e+003 2.99584139081e+005Sand, clay, gravel, and peat deposited in marine, fluvial, eolian, and lacustrine environments. Quaternary deposits not shown at altitudes greater than approximately 25 feet above mean sea level (Suffolk Scarp, in part) 1669Tob Coastal Plain Coastal Plain Tertiary Sedimentary Rocks Belgrade Formation, Undivided Phanerozioc Cenozoic Tertiary none none 9 3.89114471832e+004 4.51557301267e+007Pollocksville Member: Oyster-shell mounds in tan to orange sand matrix, indurated locally. Haywood Landing Member: Fossiliferous clayey sand, gray to brown. Members grade into each other laterally 1670Qp Coastal Plain Coastal Plain Quaternary Surficial deposits Surficial deposits, undivided Phanerozioc Cenozoic Quaternary none none 14 3.89939652155e+003 6.77421954238e+005Sand, clay, gravel, and peat deposited in marine, fluvial, eolian, and lacustrine environments. Quaternary deposits not shown at altitudes greater than approximately 25 feet above mean sea level (Suffolk Scarp, in part) 1671Qp Coastal Plain Coastal Plain Quaternary Surficial deposits Surficial deposits, undivided Phanerozioc Cenozoic Quaternary none none 14 1.29358927382e+003 1.15094533119e+005Sand, clay, gravel, and peat deposited in marine, fluvial, eolian, and lacustrine environments. Quaternary deposits not shown at altitudes greater than approximately 25 feet above mean sea level (Suffolk Scarp, in part) 1672Qp Coastal Plain Coastal Plain Quaternary Surficial deposits Surficial deposits, undivided Phanerozioc Cenozoic Quaternary none none 14 1.67904578020e+004 6.55179623334e+006Sand, clay, gravel, and peat deposited in marine, fluvial, eolian, and lacustrine environments. Quaternary deposits not shown at altitudes greater than approximately 25 feet above mean sea level (Suffolk Scarp, in part) 1673Qp Coastal Plain Coastal Plain Quaternary Surficial deposits Surficial deposits, undivided Phanerozioc Cenozoic Quaternary none none 14 4.16478435487e+004 1.97578857394e+007Sand, clay, gravel, and peat deposited in marine, fluvial, eolian, and lacustrine environments. Quaternary deposits not shown at altitudes greater than approximately 25 feet above mean sea level (Suffolk Scarp, in part) 1674Qp Coastal Plain Coastal Plain Quaternary Surficial deposits Surficial deposits, undivided Phanerozioc Cenozoic Quaternary none none 14 7.03853490931e+003 2.54480826552e+006Sand, clay, gravel, and peat deposited in marine, fluvial, eolian, and lacustrine environments. Quaternary deposits not shown at altitudes greater than approximately 25 feet above mean sea level (Suffolk Scarp, in part) 1675Qp Coastal Plain Coastal Plain Quaternary Surficial deposits Surficial deposits, undivided Phanerozioc Cenozoic Quaternary none none 14 1.53453718318e+003 1.12895199156e+005Sand, clay, gravel, and peat deposited in marine, fluvial, eolian, and lacustrine environments. Quaternary deposits not shown at altitudes greater than approximately 25 feet above mean sea level (Suffolk Scarp, in part) 1676Qp Coastal Plain Coastal Plain Quaternary Surficial deposits Surficial deposits, undivided Phanerozioc Cenozoic Quaternary none none 14 3.79118080288e+003 4.74717937425e+005Sand, clay, gravel, and peat deposited in marine, fluvial, eolian, and lacustrine environments. Quaternary deposits not shown at altitudes greater than approximately 25 feet above mean sea level (Suffolk Scarp, in part) 1677Qp Coastal Plain Coastal Plain Quaternary Surficial deposits Surficial deposits, undivided Phanerozioc Cenozoic Quaternary none none 14 1.29435297774e+003 8.77626347249e+004Sand, clay, gravel, and peat deposited in marine, fluvial, eolian, and lacustrine environments. Quaternary deposits not shown at altitudes greater than approximately 25 feet above mean sea level (Suffolk Scarp, in part) 1678Qp Coastal Plain Coastal Plain Quaternary Surficial deposits Surficial deposits, undivided Phanerozioc Cenozoic Quaternary none none 14 2.17020800290e+003 2.20025336701e+005Sand, clay, gravel, and peat deposited in marine, fluvial, eolian, and lacustrine environments. Quaternary deposits not shown at altitudes greater than approximately 25 feet above mean sea level (Suffolk Scarp, in part) 1679Qp Coastal Plain Coastal Plain Quaternary Surficial deposits Surficial deposits, undivided Phanerozioc Cenozoic Quaternary none none 14 1.48022087536e+003 1.59105126081e+005Sand, clay, gravel, and peat deposited in marine, fluvial, eolian, and lacustrine environments. Quaternary deposits not shown at altitudes greater than approximately 25 feet above mean sea level (Suffolk Scarp, in part) 1680Qp Coastal Plain Coastal Plain Quaternary Surficial deposits Surficial deposits, undivided Phanerozioc Cenozoic Quaternary none none 14 9.00830771441e+004 3.36413374354e+007Sand, clay, gravel, and peat deposited in marine, fluvial, eolian, and lacustrine environments. Quaternary deposits not shown at altitudes greater than approximately 25 feet above mean sea level (Suffolk Scarp, in part) 1692Tpy Coastal Plain Coastal Plain Tertiary Sedimentary Rocks Yorktown Formation and Duplin Formation, Undivided Phanerozioc Cenozoic Tertiary none none 10 6.84133271218e+003 3.12456304853e+006Yorktown Formation: Fossiliferous clay with varying amounts of fine-grained sand, bluish gray, shell material commonly concentrated in lenses; mainly in area north of Neuse River. Duplin Formation: Shelly, medium- to coarse-grained sand, sandy marl, and limestone, bluish gray; mainly in area south of Neuse River 1693Qp Coastal Plain Coastal Plain Quaternary Surficial deposits Surficial deposits, undivided Phanerozioc Cenozoic Quaternary none none 14 3.17566374526e+004 9.19115439722e+006Sand, clay, gravel, and peat deposited in marine, fluvial, eolian, and lacustrine environments. Quaternary deposits not shown at altitudes greater than approximately 25 feet above mean sea level (Suffolk Scarp, in part) 1694Qp Coastal Plain Coastal Plain Quaternary Surficial deposits Surficial deposits, undivided Phanerozioc Cenozoic Quaternary none none 14 3.58556860301e+003 3.62890854182e+005Sand, clay, gravel, and peat deposited in marine, fluvial, eolian, and lacustrine environments. Quaternary deposits not shown at altitudes greater than approximately 25 feet above mean sea level (Suffolk Scarp, in part) 1695Qp Coastal Plain Coastal Plain Quaternary Surficial deposits Surficial deposits, undivided Phanerozioc Cenozoic Quaternary none none 14 5.93604308155e+003 1.12715198522e+006Sand, clay, gravel, and peat deposited in marine, fluvial, eolian, and lacustrine environments. Quaternary deposits not shown at altitudes greater than approximately 25 feet above mean sea level (Suffolk Scarp, in part) 1696Qp Coastal Plain Coastal Plain Quaternary Surficial deposits Surficial deposits, undivided Phanerozioc Cenozoic Quaternary none none 14 1.13546540358e+003 8.78728089406e+004Sand, clay, gravel, and peat deposited in marine, fluvial, eolian, and lacustrine environments. Quaternary deposits not shown at altitudes greater than approximately 25 feet above mean sea level (Suffolk Scarp, in part) 1697Tpy Coastal Plain Coastal Plain Tertiary Sedimentary Rocks Yorktown Formation and Duplin Formation, Undivided Phanerozioc Cenozoic Tertiary none none 10 2.71050847843e+005 1.39401051993e+009Yorktown Formation: Fossiliferous clay with varying amounts of fine-grained sand, bluish gray, shell material commonly concentrated in lenses; mainly in area north of Neuse River. Duplin Formation: Shelly, medium- to coarse-grained sand, sandy marl, and limestone, bluish gray; mainly in area south of Neuse River 1698Qp Coastal Plain Coastal Plain Quaternary Surficial deposits Surficial deposits, undivided Phanerozioc Cenozoic Quaternary none none 14 2.53423994188e+003 2.86643129397e+005Sand, clay, gravel, and peat deposited in marine, fluvial, eolian, and lacustrine environments. Quaternary deposits not shown at altitudes greater than approximately 25 feet above mean sea level (Suffolk Scarp, in part) 1699Qp Coastal Plain Coastal Plain Quaternary Surficial deposits Surficial deposits, undivided Phanerozioc Cenozoic Quaternary none none 14 1.34162863593e+003 1.21903807506e+005Sand, clay, gravel, and peat deposited in marine, fluvial, eolian, and lacustrine environments. Quaternary deposits not shown at altitudes greater than approximately 25 feet above mean sea level (Suffolk Scarp, in part) 1700Qp Coastal Plain Coastal Plain Quaternary Surficial deposits Surficial deposits, undivided Phanerozioc Cenozoic Quaternary none none 14 1.14477363951e+003 8.82695715251e+004Sand, clay, gravel, and peat deposited in marine, fluvial, eolian, and lacustrine environments. Quaternary deposits not shown at altitudes greater than approximately 25 feet above mean sea level (Suffolk Scarp, in part) 1701Qp Coastal Plain Coastal Plain Quaternary Surficial deposits Surficial deposits, undivided Phanerozioc Cenozoic Quaternary none none 14 4.48412995209e+003 1.21398173808e+006Sand, clay, gravel, and peat deposited in marine, fluvial, eolian, and lacustrine environments. Quaternary deposits not shown at altitudes greater than approximately 25 feet above mean sea level (Suffolk Scarp, in part) 1702Qp Coastal Plain Coastal Plain Quaternary Surficial deposits Surficial deposits, undivided Phanerozioc Cenozoic Quaternary none none 14 1.88932952665e+003 1.65152174375e+005Sand, clay, gravel, and peat deposited in marine, fluvial, eolian, and lacustrine environments. Quaternary deposits not shown at altitudes greater than approximately 25 feet above mean sea level (Suffolk Scarp, in part) 1703Qp Coastal Plain Coastal Plain Quaternary Surficial deposits Surficial deposits, undivided Phanerozioc Cenozoic Quaternary none none 14 1.64212384363e+003 1.36642855013e+005Sand, clay, gravel, and peat deposited in marine, fluvial, eolian, and lacustrine environments. Quaternary deposits not shown at altitudes greater than approximately 25 feet above mean sea level (Suffolk Scarp, in part) 1704Qp Coastal Plain Coastal Plain Quaternary Surficial deposits Surficial deposits, undivided Phanerozioc Cenozoic Quaternary none none 14 5.36628952696e+003 8.85887571179e+005Sand, clay, gravel, and peat deposited in marine, fluvial, eolian, and lacustrine environments. Quaternary deposits not shown at altitudes greater than approximately 25 feet above mean sea level (Suffolk Scarp, in part) 1705Qp Coastal Plain Coastal Plain Quaternary Surficial deposits Surficial deposits, undivided Phanerozioc Cenozoic Quaternary none none 14 4.28711428525e+003 4.54819720556e+005Sand, clay, gravel, and peat deposited in marine, fluvial, eolian, and lacustrine environments. Quaternary deposits not shown at altitudes greater than approximately 25 feet above mean sea level (Suffolk Scarp, in part) 1706Qp Coastal Plain Coastal Plain Quaternary Surficial deposits Surficial deposits, undivided Phanerozioc Cenozoic Quaternary none none 14 1.93825998181e+003 1.86540001693e+005Sand, clay, gravel, and peat deposited in marine, fluvial, eolian, and lacustrine environments. Quaternary deposits not shown at altitudes greater than approximately 25 feet above mean sea level (Suffolk Scarp, in part) 1707Qp Coastal Plain Coastal Plain Quaternary Surficial deposits Surficial deposits, undivided Phanerozioc Cenozoic Quaternary none none 14 2.44879308063e+003 2.29179945750e+005Sand, clay, gravel, and peat deposited in marine, fluvial, eolian, and lacustrine environments. Quaternary deposits not shown at altitudes greater than approximately 25 feet above mean sea level (Suffolk Scarp, in part) 1708Qp Coastal Plain Coastal Plain Quaternary Surficial deposits Surficial deposits, undivided Phanerozioc Cenozoic Quaternary none none 14 2.07165775052e+003 2.76794474253e+005Sand, clay, gravel, and peat deposited in marine, fluvial, eolian, and lacustrine environments. Quaternary deposits not shown at altitudes greater than approximately 25 feet above mean sea level (Suffolk Scarp, in part) 1709Qp Coastal Plain Coastal Plain Quaternary Surficial deposits Surficial deposits, undivided Phanerozioc Cenozoic Quaternary none none 14 2.58723419475e+003 2.69230317041e+005Sand, clay, gravel, and peat deposited in marine, fluvial, eolian, and lacustrine environments. Quaternary deposits not shown at altitudes greater than approximately 25 feet above mean sea level (Suffolk Scarp, in part) 1710Qp Coastal Plain Coastal Plain Quaternary Surficial deposits Surficial deposits, undivided Phanerozioc Cenozoic Quaternary none none 14 3.06574228922e+003 3.48238769843e+005Sand, clay, gravel, and peat deposited in marine, fluvial, eolian, and lacustrine environments. Quaternary deposits not shown at altitudes greater than approximately 25 feet above mean sea level (Suffolk Scarp, in part) 1711Qp Coastal Plain Coastal Plain Quaternary Surficial deposits Surficial deposits, undivided Phanerozioc Cenozoic Quaternary none none 14 1.33236359158e+004 4.00421972087e+006Sand, clay, gravel, and peat deposited in marine, fluvial, eolian, and lacustrine environments. Quaternary deposits not shown at altitudes greater than approximately 25 feet above mean sea level (Suffolk Scarp, in part) 1712Qp Coastal Plain Coastal Plain Quaternary Surficial deposits Surficial deposits, undivided Phanerozioc Cenozoic Quaternary none none 14 3.38646818868e+003 5.05367528778e+005Sand, clay, gravel, and peat deposited in marine, fluvial, eolian, and lacustrine environments. Quaternary deposits not shown at altitudes greater than approximately 25 feet above mean sea level (Suffolk Scarp, in part) 1713Qp Coastal Plain Coastal Plain Quaternary Surficial deposits Surficial deposits, undivided Phanerozioc Cenozoic Quaternary none none 14 1.69908148195e+003 1.62174428819e+005Sand, clay, gravel, and peat deposited in marine, fluvial, eolian, and lacustrine environments. Quaternary deposits not shown at altitudes greater than approximately 25 feet above mean sea level (Suffolk Scarp, in part) 1714Tec Coastal Plain Coastal Plain Tertiary Sedimentary Rocks Comfort Member and New Hanover Member, Undivided Phanerozioc Cenozoic Tertiary none none 6 1.33379637489e+004 1.29030463911e+007Comfort Member: Bryozoan-echinoid skeletal limestone, locally dolomitized, solution cavities common. New Hanover Member: Phosphate-pebble conglomerate, micritic, thin; restricted to basal part of Castle Hayne Formation in southeastern counties 1715Qp Coastal Plain Coastal Plain Quaternary Surficial deposits Surficial deposits, undivided Phanerozioc Cenozoic Quaternary none none 14 1.27646518814e+003 9.57062892652e+004Sand, clay, gravel, and peat deposited in marine, fluvial, eolian, and lacustrine environments. Quaternary deposits not shown at altitudes greater than approximately 25 feet above mean sea level (Suffolk Scarp, in part) 1716Qp Coastal Plain Coastal Plain Quaternary Surficial deposits Surficial deposits, undivided Phanerozioc Cenozoic Quaternary none none 14 8.24811320033e+003 1.38610924086e+006Sand, clay, gravel, and peat deposited in marine, fluvial, eolian, and lacustrine environments. Quaternary deposits not shown at altitudes greater than approximately 25 feet above mean sea level (Suffolk Scarp, in part) 1717Qp Coastal Plain Coastal Plain Quaternary Surficial deposits Surficial deposits, undivided Phanerozioc Cenozoic Quaternary none none 14 6.23361456741e+003 1.33002748883e+006Sand, clay, gravel, and peat deposited in marine, fluvial, eolian, and lacustrine environments. Quaternary deposits not shown at altitudes greater than approximately 25 feet above mean sea level (Suffolk Scarp, in part) 1718Qp Coastal Plain Coastal Plain Quaternary Surficial deposits Surficial deposits, undivided Phanerozioc Cenozoic Quaternary none none 14 1.70019872951e+003 1.62003441690e+005Sand, clay, gravel, and peat deposited in marine, fluvial, eolian, and lacustrine environments. Quaternary deposits not shown at altitudes greater than approximately 25 feet above mean sea level (Suffolk Scarp, in part) 1719Qp Coastal Plain Coastal Plain Quaternary Surficial deposits Surficial deposits, undivided Phanerozioc Cenozoic Quaternary none none 14 2.46821828153e+003 3.02294064435e+005Sand, clay, gravel, and peat deposited in marine, fluvial, eolian, and lacustrine environments. Quaternary deposits not shown at altitudes greater than approximately 25 feet above mean sea level (Suffolk Scarp, in part) 1720Qp Coastal Plain Coastal Plain Quaternary Surficial deposits Surficial deposits, undivided Phanerozioc Cenozoic Quaternary none none 14 1.54506527131e+004 2.75533545859e+006Sand, clay, gravel, and peat deposited in marine, fluvial, eolian, and lacustrine environments. Quaternary deposits not shown at altitudes greater than approximately 25 feet above mean sea level (Suffolk Scarp, in part) 1721Qp Coastal Plain Coastal Plain Quaternary Surficial deposits Surficial deposits, undivided Phanerozioc Cenozoic Quaternary none none 14 3.43213825267e+003 6.54950197947e+005Sand, clay, gravel, and peat deposited in marine, fluvial, eolian, and lacustrine environments. Quaternary deposits not shown at altitudes greater than approximately 25 feet above mean sea level (Suffolk Scarp, in part) 1722Qp Coastal Plain Coastal Plain Quaternary Surficial deposits Surficial deposits, undivided Phanerozioc Cenozoic Quaternary none none 14 9.18487306507e+002 5.82714022312e+004Sand, clay, gravel, and peat deposited in marine, fluvial, eolian, and lacustrine environments. Quaternary deposits not shown at altitudes greater than approximately 25 feet above mean sea level (Suffolk Scarp, in part) 1723Qp Coastal Plain Coastal Plain Quaternary Surficial deposits Surficial deposits, undivided Phanerozioc Cenozoic Quaternary none none 14 1.09367444744e+004 3.30654639935e+006Sand, clay, gravel, and peat deposited in marine, fluvial, eolian, and lacustrine environments. Quaternary deposits not shown at altitudes greater than approximately 25 feet above mean sea level (Suffolk Scarp, in part) 1724Qp Coastal Plain Coastal Plain Quaternary Surficial deposits Surficial deposits, undivided Phanerozioc Cenozoic Quaternary none none 14 3.59904039796e+003 3.93448201704e+005Sand, clay, gravel, and peat deposited in marine, fluvial, eolian, and lacustrine environments. Quaternary deposits not shown at altitudes greater than approximately 25 feet above mean sea level (Suffolk Scarp, in part) 1737Qp Coastal Plain Coastal Plain Quaternary Surficial deposits Surficial deposits, undivided Phanerozioc Cenozoic Quaternary none none 14 2.59100407047e+004 4.84262786633e+006Sand, clay, gravel, and peat deposited in marine, fluvial, eolian, and lacustrine environments. Quaternary deposits not shown at altitudes greater than approximately 25 feet above mean sea level (Suffolk Scarp, in part) 1738Tor Coastal Plain Coastal Plain Tertiary Sedimentary Rocks River Bend Formation Phanerozioc Cenozoic Tertiary none none 8 1.16452553821e+003 9.30202535657e+004Limestone, calcarenite overlain by and intercalated with indurated, sandy, molluscan-mold limestone 1739Tpyw Coastal Plain Coastal Plain Tertiary Sedimentary Rocks Waccamaw Formation Phanerozioc Cenozoic Tertiary none none 11 8.63287633332e+003 4.04734071682e+006Fossiliferous sand with silt and clay, bluish-gray to tan, loosely consolidated. Straddles Pleistocene-Pliocene boundary 1740Qp Coastal Plain Coastal Plain Quaternary Surficial deposits Surficial deposits, undivided Phanerozioc Cenozoic Quaternary none none 14 6.66461418986e+003 1.52969316251e+006Sand, clay, gravel, and peat deposited in marine, fluvial, eolian, and lacustrine environments. Quaternary deposits not shown at altitudes greater than approximately 25 feet above mean sea level (Suffolk Scarp, in part) 1741Qp Coastal Plain Coastal Plain Quaternary Surficial deposits Surficial deposits, undivided Phanerozioc Cenozoic Quaternary none none 14 3.71724051333e+003 7.69538831553e+005Sand, clay, gravel, and peat deposited in marine, fluvial, eolian, and lacustrine environments. Quaternary deposits not shown at altitudes greater than approximately 25 feet above mean sea level (Suffolk Scarp, in part) 1742Qp Coastal Plain Coastal Plain Quaternary Surficial deposits Surficial deposits, undivided Phanerozioc Cenozoic Quaternary none none 14 1.46524257569e+003 9.99158046966e+004Sand, clay, gravel, and peat deposited in marine, fluvial, eolian, and lacustrine environments. Quaternary deposits not shown at altitudes greater than approximately 25 feet above mean sea level (Suffolk Scarp, in part) 1743Qp Coastal Plain Coastal Plain Quaternary Surficial deposits Surficial deposits, undivided Phanerozioc Cenozoic Quaternary none none 14 1.17247086904e+003 7.63286060563e+004Sand, clay, gravel, and peat deposited in marine, fluvial, eolian, and lacustrine environments. Quaternary deposits not shown at altitudes greater than approximately 25 feet above mean sea level (Suffolk Scarp, in part) 1744Qp Coastal Plain Coastal Plain Quaternary Surficial deposits Surficial deposits, undivided Phanerozioc Cenozoic Quaternary none none 14 5.41714632083e+003 9.29338628272e+005Sand, clay, gravel, and peat deposited in marine, fluvial, eolian, and lacustrine environments. Quaternary deposits not shown at altitudes greater than approximately 25 feet above mean sea level (Suffolk Scarp, in part) 1745Qp Coastal Plain Coastal Plain Quaternary Surficial deposits Surficial deposits, undivided Phanerozioc Cenozoic Quaternary none none 14 2.30807336476e+003 2.46814267962e+005Sand, clay, gravel, and peat deposited in marine, fluvial, eolian, and lacustrine environments. Quaternary deposits not shown at altitudes greater than approximately 25 feet above mean sea level (Suffolk Scarp, in part) 1746Qp Coastal Plain Coastal Plain Quaternary Surficial deposits Surficial deposits, undivided Phanerozioc Cenozoic Quaternary none none 14 2.67238942075e+003 3.11131196682e+005Sand, clay, gravel, and peat deposited in marine, fluvial, eolian, and lacustrine environments. Quaternary deposits not shown at altitudes greater than approximately 25 feet above mean sea level (Suffolk Scarp, in part) 1747Qp Coastal Plain Coastal Plain Quaternary Surficial deposits Surficial deposits, undivided Phanerozioc Cenozoic Quaternary none none 14 2.61829673818e+003 2.77139408981e+005Sand, clay, gravel, and peat deposited in marine, fluvial, eolian, and lacustrine environments. Quaternary deposits not shown at altitudes greater than approximately 25 feet above mean sea level (Suffolk Scarp, in part) 1748Qp Coastal Plain Coastal Plain Quaternary Surficial deposits Surficial deposits, undivided Phanerozioc Cenozoic Quaternary none none 14 2.98625422851e+004 1.42631713297e+007Sand, clay, gravel, and peat deposited in marine, fluvial, eolian, and lacustrine environments. Quaternary deposits not shown at altitudes greater than approximately 25 feet above mean sea level (Suffolk Scarp, in part) 1749Qp Coastal Plain Coastal Plain Quaternary Surficial deposits Surficial deposits, undivided Phanerozioc Cenozoic Quaternary none none 14 3.19303623467e+003 4.41935108597e+005Sand, clay, gravel, and peat deposited in marine, fluvial, eolian, and lacustrine environments. Quaternary deposits not shown at altitudes greater than approximately 25 feet above mean sea level (Suffolk Scarp, in part) 1750Qp Coastal Plain Coastal Plain Quaternary Surficial deposits Surficial deposits, undivided Phanerozioc Cenozoic Quaternary none none 14 9.26199239824e+004 2.37802773737e+007Sand, clay, gravel, and peat deposited in marine, fluvial, eolian, and lacustrine environments. Quaternary deposits not shown at altitudes greater than approximately 25 feet above mean sea level (Suffolk Scarp, in part) 1751Tpa Coastal Plain Coastal Plain Tertiary Sedimentary Rocks Beaufort Formation, Undivided Phanerozioc Cenozoic Tertiary none none 5 1.99692495305e+004 2.59492499820e+007Unnamed upper member: Sand and silty clay, glauconitic, fossiliferous, and locally calcareous. Jericho Run Member: Siliceous mudstone with sandstone lenses, thin bedded; basal phosphatic pebble conglomerate 1752Qp Coastal Plain Coastal Plain Quaternary Surficial deposits Surficial deposits, undivided Phanerozioc Cenozoic Quaternary none none 14 2.80530023349e+004 9.71133803077e+006Sand, clay, gravel, and peat deposited in marine, fluvial, eolian, and lacustrine environments. Quaternary deposits not shown at altitudes greater than approximately 25 feet above mean sea level (Suffolk Scarp, in part) 1753Qp Coastal Plain Coastal Plain Quaternary Surficial deposits Surficial deposits, undivided Phanerozioc Cenozoic Quaternary none none 14 6.12222881597e+003 7.05864429244e+005Sand, clay, gravel, and peat deposited in marine, fluvial, eolian, and lacustrine environments. Quaternary deposits not shown at altitudes greater than approximately 25 feet above mean sea level (Suffolk Scarp, in part) 1754Qp Coastal Plain Coastal Plain Quaternary Surficial deposits Surficial deposits, undivided Phanerozioc Cenozoic Quaternary none none 14 1.60855228291e+003 1.17029670528e+005Sand, clay, gravel, and peat deposited in marine, fluvial, eolian, and lacustrine environments. Quaternary deposits not shown at altitudes greater than approximately 25 feet above mean sea level (Suffolk Scarp, in part) 1755Qp Coastal Plain Coastal Plain Quaternary Surficial deposits Surficial deposits, undivided Phanerozioc Cenozoic Quaternary none none 14 1.39558985237e+003 1.14434710563e+005Sand, clay, gravel, and peat deposited in marine, fluvial, eolian, and lacustrine environments. Quaternary deposits not shown at altitudes greater than approximately 25 feet above mean sea level (Suffolk Scarp, in part) 1756Qp Coastal Plain Coastal Plain Quaternary Surficial deposits Surficial deposits, undivided Phanerozioc Cenozoic Quaternary none none 14 2.61762634273e+003 2.42363282466e+005Sand, clay, gravel, and peat deposited in marine, fluvial, eolian, and lacustrine environments. Quaternary deposits not shown at altitudes greater than approximately 25 feet above mean sea level (Suffolk Scarp, in part) 1757Qp Coastal Plain Coastal Plain Quaternary Surficial deposits Surficial deposits, undivided Phanerozioc Cenozoic Quaternary none none 14 4.97862245310e+003 1.19131445789e+006Sand, clay, gravel, and peat deposited in marine, fluvial, eolian, and lacustrine environments. Quaternary deposits not shown at altitudes greater than approximately 25 feet above mean sea level (Suffolk Scarp, in part) 1758Qp Coastal Plain Coastal Plain Quaternary Surficial deposits Surficial deposits, undivided Phanerozioc Cenozoic Quaternary none none 14 1.26286969944e+003 8.46848202906e+004Sand, clay, gravel, and peat deposited in marine, fluvial, eolian, and lacustrine environments. Quaternary deposits not shown at altitudes greater than approximately 25 feet above mean sea level (Suffolk Scarp, in part) 1759Qp Coastal Plain Coastal Plain Quaternary Surficial deposits Surficial deposits, undivided Phanerozioc Cenozoic Quaternary none none 14 3.09831323710e+003 3.07995568208e+005Sand, clay, gravel, and peat deposited in marine, fluvial, eolian, and lacustrine environments. Quaternary deposits not shown at altitudes greater than approximately 25 feet above mean sea level (Suffolk Scarp, in part) 1760Qp Coastal Plain Coastal Plain Quaternary Surficial deposits Surficial deposits, undivided Phanerozioc Cenozoic Quaternary none none 14 2.01631692539e+004 4.75719385199e+006Sand, clay, gravel, and peat deposited in marine, fluvial, eolian, and lacustrine environments. Quaternary deposits not shown at altitudes greater than approximately 25 feet above mean sea level (Suffolk Scarp, in part) 1761Tpyw Coastal Plain Coastal Plain Tertiary Sedimentary Rocks Waccamaw Formation Phanerozioc Cenozoic Tertiary none none 11 2.84249851363e+004 4.48218464124e+007Fossiliferous sand with silt and clay, bluish-gray to tan, loosely consolidated. Straddles Pleistocene-Pliocene boundary 1762Qp Coastal Plain Coastal Plain Quaternary Surficial deposits Surficial deposits, undivided Phanerozioc Cenozoic Quaternary none none 14 3.16128034354e+003 5.45785452431e+005Sand, clay, gravel, and peat deposited in marine, fluvial, eolian, and lacustrine environments. Quaternary deposits not shown at altitudes greater than approximately 25 feet above mean sea level (Suffolk Scarp, in part) 1763Qp Coastal Plain Coastal Plain Quaternary Surficial deposits Surficial deposits, undivided Phanerozioc Cenozoic Quaternary none none 14 1.17666572615e+004 3.34889164945e+006Sand, clay, gravel, and peat deposited in marine, fluvial, eolian, and lacustrine environments. Quaternary deposits not shown at altitudes greater than approximately 25 feet above mean sea level (Suffolk Scarp, in part) 1764Qp Coastal Plain Coastal Plain Quaternary Surficial deposits Surficial deposits, undivided Phanerozioc Cenozoic Quaternary none none 14 5.27465986557e+003 1.38573059975e+006Sand, clay, gravel, and peat deposited in marine, fluvial, eolian, and lacustrine environments. Quaternary deposits not shown at altitudes greater than approximately 25 feet above mean sea level (Suffolk Scarp, in part) 1765Qp Coastal Plain Coastal Plain Quaternary Surficial deposits Surficial deposits, undivided Phanerozioc Cenozoic Quaternary none none 14 2.57997637448e+003 2.29606431953e+005Sand, clay, gravel, and peat deposited in marine, fluvial, eolian, and lacustrine environments. Quaternary deposits not shown at altitudes greater than approximately 25 feet above mean sea level (Suffolk Scarp, in part) 1766Qp Coastal Plain Coastal Plain Quaternary Surficial deposits Surficial deposits, undivided Phanerozioc Cenozoic Quaternary none none 14 8.91284732390e+003 1.84076789621e+006Sand, clay, gravel, and peat deposited in marine, fluvial, eolian, and lacustrine environments. Quaternary deposits not shown at altitudes greater than approximately 25 feet above mean sea level (Suffolk Scarp, in part) 1767Qp Coastal Plain Coastal Plain Quaternary Surficial deposits Surficial deposits, undivided Phanerozioc Cenozoic Quaternary none none 14 1.87352495480e+004 5.86740128935e+006Sand, clay, gravel, and peat deposited in marine, fluvial, eolian, and lacustrine environments. Quaternary deposits not shown at altitudes greater than approximately 25 feet above mean sea level (Suffolk Scarp, in part) 1768Tpyw Coastal Plain Coastal Plain Tertiary Sedimentary Rocks Waccamaw Formation Phanerozioc Cenozoic Tertiary none none 11 2.39139396939e+004 2.90130224708e+007Fossiliferous sand with silt and clay, bluish-gray to tan, loosely consolidated. Straddles Pleistocene-Pliocene boundary 1769Qp Coastal Plain Coastal Plain Quaternary Surficial deposits Surficial deposits, undivided Phanerozioc Cenozoic Quaternary none none 14 4.12259793968e+003 1.03061752625e+006Sand, clay, gravel, and peat deposited in marine, fluvial, eolian, and lacustrine environments. Quaternary deposits not shown at altitudes greater than approximately 25 feet above mean sea level (Suffolk Scarp, in part) 1770Qp Coastal Plain Coastal Plain Quaternary Surficial deposits Surficial deposits, undivided Phanerozioc Cenozoic Quaternary none none 14 9.60347126223e+003 3.62963740303e+006Sand, clay, gravel, and peat deposited in marine, fluvial, eolian, and lacustrine environments. Quaternary deposits not shown at altitudes greater than approximately 25 feet above mean sea level (Suffolk Scarp, in part) 1771Qp Coastal Plain Coastal Plain Quaternary Surficial deposits Surficial deposits, undivided Phanerozioc Cenozoic Quaternary none none 14 4.56557721671e+003 6.85557793450e+005Sand, clay, gravel, and peat deposited in marine, fluvial, eolian, and lacustrine environments. Quaternary deposits not shown at altitudes greater than approximately 25 feet above mean sea level (Suffolk Scarp, in part) 1772Qp Coastal Plain Coastal Plain Quaternary Surficial deposits Surficial deposits, undivided Phanerozioc Cenozoic Quaternary none none 14 2.08821660113e+004 3.98785549935e+006Sand, clay, gravel, and peat deposited in marine, fluvial, eolian, and lacustrine environments. Quaternary deposits not shown at altitudes greater than approximately 25 feet above mean sea level (Suffolk Scarp, in part) 1773Tpy Coastal Plain Coastal Plain Tertiary Sedimentary Rocks Yorktown Formation and Duplin Formation, Undivided Phanerozioc Cenozoic Tertiary none none 10 4.05101158748e+004 7.33843375931e+007Yorktown Formation: Fossiliferous clay with varying amounts of fine-grained sand, bluish gray, shell material commonly concentrated in lenses; mainly in area north of Neuse River. Duplin Formation: Shelly, medium- to coarse-grained sand, sandy marl, and limestone, bluish gray; mainly in area south of Neuse River 1774Tpyw Coastal Plain Coastal Plain Tertiary Sedimentary Rocks Waccamaw Formation Phanerozioc Cenozoic Tertiary none none 11 1.28128257292e+004 9.25278346184e+006Fossiliferous sand with silt and clay, bluish-gray to tan, loosely consolidated. Straddles Pleistocene-Pliocene boundary 1775Tpyw Coastal Plain Coastal Plain Tertiary Sedimentary Rocks Waccamaw Formation Phanerozioc Cenozoic Tertiary none none 11 1.29270811177e+004 8.97171918414e+006Fossiliferous sand with silt and clay, bluish-gray to tan, loosely consolidated. Straddles Pleistocene-Pliocene boundary 1776Qp Coastal Plain Coastal Plain Quaternary Surficial deposits Surficial deposits, undivided Phanerozioc Cenozoic Quaternary none none 14 2.93787953960e+003 5.56582144691e+005Sand, clay, gravel, and peat deposited in marine, fluvial, eolian, and lacustrine environments. Quaternary deposits not shown at altitudes greater than approximately 25 feet above mean sea level (Suffolk Scarp, in part) 1777Kb Coastal Plain Coastal Plain Cretaceous Sedimentary Rocks Black Creek Formation Phanerozioc Mesozoic Cretaceous none none 3 1.13314081812e+004 5.92209525589e+006Clay, gray to black, lignitic; contains thin beds and laminae of fine-grained micaceous sand and thick lenses of cross-bedded sand. Glauconitic, fossiliferous clayey sand lenses in upper part 1778Qp Coastal Plain Coastal Plain Quaternary Surficial deposits Surficial deposits, undivided Phanerozioc Cenozoic Quaternary none none 14 6.58913144180e+003 1.97175539818e+006Sand, clay, gravel, and peat deposited in marine, fluvial, eolian, and lacustrine environments. Quaternary deposits not shown at altitudes greater than approximately 25 feet above mean sea level (Suffolk Scarp, in part) 1779Qp Coastal Plain Coastal Plain Quaternary Surficial deposits Surficial deposits, undivided Phanerozioc Cenozoic Quaternary none none 14 2.53934085318e+004 7.06267544128e+006Sand, clay, gravel, and peat deposited in marine, fluvial, eolian, and lacustrine environments. Quaternary deposits not shown at altitudes greater than approximately 25 feet above mean sea level (Suffolk Scarp, in part) 1780Kp Coastal Plain Coastal Plain Cretaceous Sedimentary Rocks Peedee Formation Phanerozioc Mesozoic Cretaceous none none 4 1.04161624103e+003 7.89391570033e+004Sand, clayey sand, and clay, greenish gray to olive black, massive, glauconitic, locally fossiliferous and calcareous. Patches of sandy molluscan-mold limestone in upper part 1781Tpyw Coastal Plain Coastal Plain Tertiary Sedimentary Rocks Waccamaw Formation Phanerozioc Cenozoic Tertiary none none 11 2.07898448727e+004 2.46736984249e+007Fossiliferous sand with silt and clay, bluish-gray to tan, loosely consolidated. Straddles Pleistocene-Pliocene boundary 1782Qp Coastal Plain Coastal Plain Quaternary Surficial deposits Surficial deposits, undivided Phanerozioc Cenozoic Quaternary none none 14 2.05878823095e+004 7.88299963594e+006Sand, clay, gravel, and peat deposited in marine, fluvial, eolian, and lacustrine environments. Quaternary deposits not shown at altitudes greater than approximately 25 feet above mean sea level (Suffolk Scarp, in part) 1783Tpyw Coastal Plain Coastal Plain Tertiary Sedimentary Rocks Waccamaw Formation Phanerozioc Cenozoic Tertiary none none 11 4.77954672068e+004 1.62665497371e+008Fossiliferous sand with silt and clay, bluish-gray to tan, loosely consolidated. Straddles Pleistocene-Pliocene boundary 1784Kp Coastal Plain Coastal Plain Cretaceous Sedimentary Rocks Peedee Formation Phanerozioc Mesozoic Cretaceous none none 4 1.07689502616e+003 7.92011900495e+004Sand, clayey sand, and clay, greenish gray to olive black, massive, glauconitic, locally fossiliferous and calcareous. Patches of sandy molluscan-mold limestone in upper part 1785Qp Coastal Plain Coastal Plain Quaternary Surficial deposits Surficial deposits, undivided Phanerozioc Cenozoic Quaternary none none 14 7.77439678009e+003 2.81153110865e+006Sand, clay, gravel, and peat deposited in marine, fluvial, eolian, and lacustrine environments. Quaternary deposits not shown at altitudes greater than approximately 25 feet above mean sea level (Suffolk Scarp, in part) 1786Tpy Coastal Plain Coastal Plain Tertiary Sedimentary Rocks Yorktown Formation and Duplin Formation, Undivided Phanerozioc Cenozoic Tertiary none none 10 1.81946479101e+004 2.53969239871e+007Yorktown Formation: Fossiliferous clay with varying amounts of fine-grained sand, bluish gray, shell material commonly concentrated in lenses; mainly in area north of Neuse River. Duplin Formation: Shelly, medium- to coarse-grained sand, sandy marl, and limestone, bluish gray; mainly in area south of Neuse River 1787Qp Coastal Plain Coastal Plain Quaternary Surficial deposits Surficial deposits, undivided Phanerozioc Cenozoic Quaternary none none 14 9.88596458846e+003 2.99256285576e+006Sand, clay, gravel, and peat deposited in marine, fluvial, eolian, and lacustrine environments. Quaternary deposits not shown at altitudes greater than approximately 25 feet above mean sea level (Suffolk Scarp, in part) 1788Tpyw Coastal Plain Coastal Plain Tertiary Sedimentary Rocks Waccamaw Formation Phanerozioc Cenozoic Tertiary none none 11 4.45806825137e+004 1.14301776732e+008Fossiliferous sand with silt and clay, bluish-gray to tan, loosely consolidated. Straddles Pleistocene-Pliocene boundary 1789Qp Coastal Plain Coastal Plain Quaternary Surficial deposits Surficial deposits, undivided Phanerozioc Cenozoic Quaternary none none 14 8.68998138357e+003 1.48525785657e+006Sand, clay, gravel, and peat deposited in marine, fluvial, eolian, and lacustrine environments. Quaternary deposits not shown at altitudes greater than approximately 25 feet above mean sea level (Suffolk Scarp, in part) 1790Qp Coastal Plain Coastal Plain Quaternary Surficial deposits Surficial deposits, undivided Phanerozioc Cenozoic Quaternary none none 14 8.68969547826e+003 1.75800071267e+006Sand, clay, gravel, and peat deposited in marine, fluvial, eolian, and lacustrine environments. Quaternary deposits not shown at altitudes greater than approximately 25 feet above mean sea level (Suffolk Scarp, in part) 1791Qp Coastal Plain Coastal Plain Quaternary Surficial deposits Surficial deposits, undivided Phanerozioc Cenozoic Quaternary none none 14 1.69460670995e+003 1.41430733266e+005Sand, clay, gravel, and peat deposited in marine, fluvial, eolian, and lacustrine environments. Quaternary deposits not shown at altitudes greater than approximately 25 feet above mean sea level (Suffolk Scarp, in part) 1792Qp Coastal Plain Coastal Plain Quaternary Surficial deposits Surficial deposits, undivided Phanerozioc Cenozoic Quaternary none none 14 2.75912676889e+003 2.86007466159e+005Sand, clay, gravel, and peat deposited in marine, fluvial, eolian, and lacustrine environments. Quaternary deposits not shown at altitudes greater than approximately 25 feet above mean sea level (Suffolk Scarp, in part) 1793Qp Coastal Plain Coastal Plain Quaternary Surficial deposits Surficial deposits, undivided Phanerozioc Cenozoic Quaternary none none 14 5.22733626446e+003 1.42565611877e+006Sand, clay, gravel, and peat deposited in marine, fluvial, eolian, and lacustrine environments. Quaternary deposits not shown at altitudes greater than approximately 25 feet above mean sea level (Suffolk Scarp, in part) 1794Qp Coastal Plain Coastal Plain Quaternary Surficial deposits Surficial deposits, undivided Phanerozioc Cenozoic Quaternary none none 14 6.90825927813e+003 1.11275542478e+006Sand, clay, gravel, and peat deposited in marine, fluvial, eolian, and lacustrine environments. Quaternary deposits not shown at altitudes greater than approximately 25 feet above mean sea level (Suffolk Scarp, in part) 1795Qp Coastal Plain Coastal Plain Quaternary Surficial deposits Surficial deposits, undivided Phanerozioc Cenozoic Quaternary none none 14 1.80549533277e+003 1.33771983831e+005Sand, clay, gravel, and peat deposited in marine, fluvial, eolian, and lacustrine environments. Quaternary deposits not shown at altitudes greater than approximately 25 feet above mean sea level (Suffolk Scarp, in part) 1796Qp Coastal Plain Coastal Plain Quaternary Surficial deposits Surficial deposits, undivided Phanerozioc Cenozoic Quaternary none none 14 7.19258038131e+003 1.54607669253e+006Sand, clay, gravel, and peat deposited in marine, fluvial, eolian, and lacustrine environments. Quaternary deposits not shown at altitudes greater than approximately 25 feet above mean sea level (Suffolk Scarp, in part) 1797Qp Coastal Plain Coastal Plain Quaternary Surficial deposits Surficial deposits, undivided Phanerozioc Cenozoic Quaternary none none 14 9.17843307475e+004 2.90997709624e+007Sand, clay, gravel, and peat deposited in marine, fluvial, eolian, and lacustrine environments. Quaternary deposits not shown at altitudes greater than approximately 25 feet above mean sea level (Suffolk Scarp, in part) 1798Tpyw Coastal Plain Coastal Plain Tertiary Sedimentary Rocks Waccamaw Formation Phanerozioc Cenozoic Tertiary none none 11 1.86062990577e+005 9.63056382512e+008Fossiliferous sand with silt and clay, bluish-gray to tan, loosely consolidated. Straddles Pleistocene-Pliocene boundary 1799Qp Coastal Plain Coastal Plain Quaternary Surficial deposits Surficial deposits, undivided Phanerozioc Cenozoic Quaternary none none 14 2.40907767499e+004 5.67617237334e+006Sand, clay, gravel, and peat deposited in marine, fluvial, eolian, and lacustrine environments. Quaternary deposits not shown at altitudes greater than approximately 25 feet above mean sea level (Suffolk Scarp, in part) 1800Qp Coastal Plain Coastal Plain Quaternary Surficial deposits Surficial deposits, undivided Phanerozioc Cenozoic Quaternary none none 14 1.58525241973e+003 1.46176474709e+005Sand, clay, gravel, and peat deposited in marine, fluvial, eolian, and lacustrine environments. Quaternary deposits not shown at altitudes greater than approximately 25 feet above mean sea level (Suffolk Scarp, in part) 1801Qp Coastal Plain Coastal Plain Quaternary Surficial deposits Surficial deposits, undivided Phanerozioc Cenozoic Quaternary none none 14 1.08618664288e+003 6.20710725873e+004Sand, clay, gravel, and peat deposited in marine, fluvial, eolian, and lacustrine environments. Quaternary deposits not shown at altitudes greater than approximately 25 feet above mean sea level (Suffolk Scarp, in part) 1802Tec Coastal Plain Coastal Plain Tertiary Sedimentary Rocks Comfort Member and New Hanover Member, Undivided Phanerozioc Cenozoic Tertiary none none 6 5.05761249132e+004 6.19582537957e+007Comfort Member: Bryozoan-echinoid skeletal limestone, locally dolomitized, solution cavities common. New Hanover Member: Phosphate-pebble conglomerate, micritic, thin; restricted to basal part of Castle Hayne Formation in southeastern counties 1803Qp Coastal Plain Coastal Plain Quaternary Surficial deposits Surficial deposits, undivided Phanerozioc Cenozoic Quaternary none none 14 3.43294259046e+003 3.27403097953e+005Sand, clay, gravel, and peat deposited in marine, fluvial, eolian, and lacustrine environments. Quaternary deposits not shown at altitudes greater than approximately 25 feet above mean sea level (Suffolk Scarp, in part) 1804Tec Coastal Plain Coastal Plain Tertiary Sedimentary Rocks Comfort Member and New Hanover Member, Undivided Phanerozioc Cenozoic Tertiary none none 6 3.86575909767e+003 8.85302028691e+005Comfort Member: Bryozoan-echinoid skeletal limestone, locally dolomitized, solution cavities common. New Hanover Member: Phosphate-pebble conglomerate, micritic, thin; restricted to basal part of Castle Hayne Formation in southeastern counties 1805Tec Coastal Plain Coastal Plain Tertiary Sedimentary Rocks Comfort Member and New Hanover Member, Undivided Phanerozioc Cenozoic Tertiary none none 6 2.75459100428e+003 3.90010369793e+005Comfort Member: Bryozoan-echinoid skeletal limestone, locally dolomitized, solution cavities common. New Hanover Member: Phosphate-pebble conglomerate, micritic, thin; restricted to basal part of Castle Hayne Formation in southeastern counties 1806Tec Coastal Plain Coastal Plain Tertiary Sedimentary Rocks Comfort Member and New Hanover Member, Undivided Phanerozioc Cenozoic Tertiary none none 6 2.89393285628e+003 3.02523333391e+005Comfort Member: Bryozoan-echinoid skeletal limestone, locally dolomitized, solution cavities common. New Hanover Member: Phosphate-pebble conglomerate, micritic, thin; restricted to basal part of Castle Hayne Formation in southeastern counties 1807Qp Coastal Plain Coastal Plain Quaternary Surficial deposits Surficial deposits, undivided Phanerozioc Cenozoic Quaternary none none 14 3.12308032817e+003 3.37437295066e+005Sand, clay, gravel, and peat deposited in marine, fluvial, eolian, and lacustrine environments. Quaternary deposits not shown at altitudes greater than approximately 25 feet above mean sea level (Suffolk Scarp, in part) 1808Tec Coastal Plain Coastal Plain Tertiary Sedimentary Rocks Comfort Member and New Hanover Member, Undivided Phanerozioc Cenozoic Tertiary none none 6 6.30245666320e+003 2.17066662835e+006Comfort Member: Bryozoan-echinoid skeletal limestone, locally dolomitized, solution cavities common. New Hanover Member: Phosphate-pebble conglomerate, micritic, thin; restricted to basal part of Castle Hayne Formation in southeastern counties 1809Tec Coastal Plain Coastal Plain Tertiary Sedimentary Rocks Comfort Member and New Hanover Member, Undivided Phanerozioc Cenozoic Tertiary none none 6 1.96049191950e+003 1.87502870387e+005Comfort Member: Bryozoan-echinoid skeletal limestone, locally dolomitized, solution cavities common. New Hanover Member: Phosphate-pebble conglomerate, micritic, thin; restricted to basal part of Castle Hayne Formation in southeastern counties 1810Qp Coastal Plain Coastal Plain Quaternary Surficial deposits Surficial deposits, undivided Phanerozioc Cenozoic Quaternary none none 14 8.80200724393e+004 5.69942218877e+007Sand, clay, gravel, and peat deposited in marine, fluvial, eolian, and lacustrine environments. Quaternary deposits not shown at altitudes greater than approximately 25 feet above mean sea level (Suffolk Scarp, in part) 1811Qp Coastal Plain Coastal Plain Quaternary Surficial deposits Surficial deposits, undivided Phanerozioc Cenozoic Quaternary none none 14 6.42798432627e+003 1.73688754758e+006Sand, clay, gravel, and peat deposited in marine, fluvial, eolian, and lacustrine environments. Quaternary deposits not shown at altitudes greater than approximately 25 feet above mean sea level (Suffolk Scarp, in part) 1812Qp Coastal Plain Coastal Plain Quaternary Surficial deposits Surficial deposits, undivided Phanerozioc Cenozoic Quaternary none none 14 1.55938859727e+003 1.65322504828e+005Sand, clay, gravel, and peat deposited in marine, fluvial, eolian, and lacustrine environments. Quaternary deposits not shown at altitudes greater than approximately 25 feet above mean sea level (Suffolk Scarp, in part) 1813Qp Coastal Plain Coastal Plain Quaternary Surficial deposits Surficial deposits, undivided Phanerozioc Cenozoic Quaternary none none 14 1.93151965620e+003 2.27691296665e+005Sand, clay, gravel, and peat deposited in marine, fluvial, eolian, and lacustrine environments. Quaternary deposits not shown at altitudes greater than approximately 25 feet above mean sea level (Suffolk Scarp, in part) 1814Qp Coastal Plain Coastal Plain Quaternary Surficial deposits Surficial deposits, undivided Phanerozioc Cenozoic Quaternary none none 14 4.77285522457e+003 8.17833903975e+005Sand, clay, gravel, and peat deposited in marine, fluvial, eolian, and lacustrine environments. Quaternary deposits not shown at altitudes greater than approximately 25 feet above mean sea level (Suffolk Scarp, in part) 1815Tpyw Coastal Plain Coastal Plain Tertiary Sedimentary Rocks Waccamaw Formation Phanerozioc Cenozoic Tertiary none none 11 1.39297187653e+003 1.14577070891e+005Fossiliferous sand with silt and clay, bluish-gray to tan, loosely consolidated. Straddles Pleistocene-Pliocene boundary 1816Qp Coastal Plain Coastal Plain Quaternary Surficial deposits Surficial deposits, undivided Phanerozioc Cenozoic Quaternary none none 14 1.58660771186e+003 1.55830043794e+005Sand, clay, gravel, and peat deposited in marine, fluvial, eolian, and lacustrine environments. Quaternary deposits not shown at altitudes greater than approximately 25 feet above mean sea level (Suffolk Scarp, in part) 1817Tpyw Coastal Plain Coastal Plain Tertiary Sedimentary Rocks Waccamaw Formation Phanerozioc Cenozoic Tertiary none none 11 9.47021450540e+002 5.75510092534e+004Fossiliferous sand with silt and clay, bluish-gray to tan, loosely consolidated. Straddles Pleistocene-Pliocene boundary 1835Qp Coastal Plain Coastal Plain Quaternary Sedimentary Rocks Surficial deposits, undivided Phanerozioc Cenozoic Quaternary none none 14 3.34596189860e+004 1.66165247533e+007Sand, clay, gravel, and peat deposited in marine, fluvial, eolian, and lacustrine environments. Quaternary deposits not shown at altitudes greater than approximately 25 feet above mean sea level (Suffolk Scarp, in part) 1818Qp Coastal Plain Coastal Plain Quaternary Surficial deposits Surficial deposits, undivided Phanerozioc Cenozoic Quaternary none none 14 2.87624242614e+003 4.19795469935e+005Sand, clay, gravel, and peat deposited in marine, fluvial, eolian, and lacustrine environments. Quaternary deposits not shown at altitudes greater than approximately 25 feet above mean sea level (Suffolk Scarp, in part) 1819Qp Coastal Plain Coastal Plain Quaternary Surficial deposits Surficial deposits, undivided Phanerozioc Cenozoic Quaternary none none 14 4.24465609057e+003 7.36780667284e+005Sand, clay, gravel, and peat deposited in marine, fluvial, eolian, and lacustrine environments. Quaternary deposits not shown at altitudes greater than approximately 25 feet above mean sea level (Suffolk Scarp, in part) 1820Qp Coastal Plain Coastal Plain Quaternary Surficial deposits Surficial deposits, undivided Phanerozioc Cenozoic Quaternary none none 14 4.58535574238e+003 8.29446138900e+005Sand, clay, gravel, and peat deposited in marine, fluvial, eolian, and lacustrine environments. Quaternary deposits not shown at altitudes greater than approximately 25 feet above mean sea level (Suffolk Scarp, in part) 1821Qp Coastal Plain Coastal Plain Quaternary Surficial deposits Surficial deposits, undivided Phanerozioc Cenozoic Quaternary none none 14 6.47193670831e+003 1.51154937789e+006Sand, clay, gravel, and peat deposited in marine, fluvial, eolian, and lacustrine environments. Quaternary deposits not shown at altitudes greater than approximately 25 feet above mean sea level (Suffolk Scarp, in part) 1822Qp Coastal Plain Coastal Plain Quaternary Surficial deposits Surficial deposits, undivided Phanerozioc Cenozoic Quaternary none none 14 1.89278186706e+003 1.46609469400e+005Sand, clay, gravel, and peat deposited in marine, fluvial, eolian, and lacustrine environments. Quaternary deposits not shown at altitudes greater than approximately 25 feet above mean sea level (Suffolk Scarp, in part) 1823Qp Coastal Plain Coastal Plain Quaternary Surficial deposits Surficial deposits, undivided Phanerozioc Cenozoic Quaternary none none 14 2.75633761989e+004 2.23299041180e+007Sand, clay, gravel, and peat deposited in marine, fluvial, eolian, and lacustrine environments. Quaternary deposits not shown at altitudes greater than approximately 25 feet above mean sea level (Suffolk Scarp, in part) 1824Qp Coastal Plain Coastal Plain Quaternary Surficial deposits Surficial deposits, undivided Phanerozioc Cenozoic Quaternary none none 14 2.13787356874e+003 2.59349990100e+005Sand, clay, gravel, and peat deposited in marine, fluvial, eolian, and lacustrine environments. Quaternary deposits not shown at altitudes greater than approximately 25 feet above mean sea level (Suffolk Scarp, in part) 1825Qp Coastal Plain Coastal Plain Quaternary Surficial deposits Surficial deposits, undivided Phanerozioc Cenozoic Quaternary none none 14 3.78103445026e+003 5.82555902271e+005Sand, clay, gravel, and peat deposited in marine, fluvial, eolian, and lacustrine environments. Quaternary deposits not shown at altitudes greater than approximately 25 feet above mean sea level (Suffolk Scarp, in part) 1826Qp Coastal Plain Coastal Plain Quaternary Surficial deposits Surficial deposits, undivided Phanerozioc Cenozoic Quaternary none none 14 1.86644390821e+003 2.13826383062e+005Sand, clay, gravel, and peat deposited in marine, fluvial, eolian, and lacustrine environments. Quaternary deposits not shown at altitudes greater than approximately 25 feet above mean sea level (Suffolk Scarp, in part) 1827Qp Coastal Plain Coastal Plain Quaternary Sedimentary Rocks Surficial deposits, undivided Phanerozioc Cenozoic Quaternary none none 14 1.19066356109e+003 8.53176048715e+004Sand, clay, gravel, and peat deposited in marine, fluvial, eolian, and lacustrine environments. Quaternary deposits not shown at altitudes greater than approximately 25 feet above mean sea level (Suffolk Scarp, in part) 1836Qp Coastal Plain Coastal Plain Quaternary Sedimentary Rocks Surficial deposits, undivided Phanerozioc Cenozoic Quaternary none none 14 3.71215923259e+004 8.14456304392e+006Sand, clay, gravel, and peat deposited in marine, fluvial, eolian, and lacustrine environments. Quaternary deposits not shown at altitudes greater than approximately 25 feet above mean sea level (Suffolk Scarp, in part) 1828Qp Coastal Plain Coastal Plain Quaternary Sedimentary Rocks Surficial deposits, undivided Phanerozioc Cenozoic Quaternary none none 14 2.16770186968e+004 6.14750270756e+006Sand, clay, gravel, and peat deposited in marine, fluvial, eolian, and lacustrine environments. Quaternary deposits not shown at altitudes greater than approximately 25 feet above mean sea level (Suffolk Scarp, in part) 1829Qp Coastal Plain Coastal Plain Quaternary Sedimentary Rocks Surficial deposits, undivided Phanerozioc Cenozoic Quaternary none none 14 1.79187506972e+003 2.02995672521e+005Sand, clay, gravel, and peat deposited in marine, fluvial, eolian, and lacustrine environments. Quaternary deposits not shown at altitudes greater than approximately 25 feet above mean sea level (Suffolk Scarp, in part) 1830Qp Coastal Plain Coastal Plain Quaternary Sedimentary Rocks Surficial deposits, undivided Phanerozioc Cenozoic Quaternary none none 14 7.98345176712e+003 2.02696229986e+006Sand, clay, gravel, and peat deposited in marine, fluvial, eolian, and lacustrine environments. Quaternary deposits not shown at altitudes greater than approximately 25 feet above mean sea level (Suffolk Scarp, in part) 1831Qp Coastal Plain Coastal Plain Quaternary Sedimentary Rocks Surficial deposits, undivided Phanerozioc Cenozoic Quaternary none none 14 1.48447083077e+004 7.00798816163e+006Sand, clay, gravel, and peat deposited in marine, fluvial, eolian, and lacustrine environments. Quaternary deposits not shown at altitudes greater than approximately 25 feet above mean sea level (Suffolk Scarp, in part) 1832Qp Coastal Plain Coastal Plain Quaternary Sedimentary Rocks Surficial deposits, undivided Phanerozioc Cenozoic Quaternary none none 14 4.09763716268e+003 6.04282729003e+005Sand, clay, gravel, and peat deposited in marine, fluvial, eolian, and lacustrine environments. Quaternary deposits not shown at altitudes greater than approximately 25 feet above mean sea level (Suffolk Scarp, in part)