Suzanne W. Nicholson Connie L. Dicken Michael P. Foose Julia A.L. Mueller version 1.0 map U.S. Geological Survey Open-File Report 2005-1323 Reston, VA U.S. Geological Survey http://pubs.usgs.gov/of/2005/1323/ This open-file report presents the results of the USGS Mineral Resources Program activity to compile a national-scale geologic map database to support national and regional level projects, including mineral resource and geoenvironmental assessments. The only comprehensive sources of regional- and national-scale geologic maps are state geologic maps with scales ranging from 1:100,000 to 1:1,000,000. Digital versions of these state maps form the core of what is presented here. Because no adequate geologic map exists for the state of Alaska, it is being compiled in regional blocks that also form part of this national database. It is expected that this series will completed by approximately the end of 2007. These maps and databases are being released in blocks of states or, in the case of Alaska, as compiled blocks of 1:250,000-scale quadrangles as chapters in this series. For Alaska, formal maps as well as databases are being published here, whereas for the conterminous U.S. only state databases and preview graphics are presented, because published maps for most states already exist. For Alaska these regional compilations will form the base for compiling a new geologic map of the state. As documented in Chapter A, standards for the conterminous U.S. are somewhat different than those for Alaska and Hawaii. A primary goal of this work is to develop geologic map datasets with standardized structure and attribution. The database design and standards are documented in Chapter A of this series. The intent is that contiguous databases can be merged seamlessly and without any additional effort. In addition to a common database structure, the conterminous U.S. state databases (the contiguous 48 states) have been fitted to a set of standard state boundaries so that, when states are merged, they match without slivers or overlap. No attempt has been made to reconcile differences in mapping across state boundaries. This database consists of five major Arc/Info GIS datasets for each state; - one: geologic map with formations, - two: faults (where present), - three: dikes (where present), - four: miscellaneous line features (where present), - five: miscellaneous point features (where present). publication date Complete none planned -84.321673 -75.164774 36.588257 33.652108 none geology none USA North Carolina National Geologic Map Database Catalog themes, augmented 3100 - Vector 3110 - ESRI 3112 - export 1100 - Geology 1101 - General Augmented FIPS 10-4 and FIPS 6-4, version 1.0 US37 = North Carolina none This database is not meant to be used or displayed at any scale other than 1:500,000. Any hardcopies utilizing these data sets shall clearly indicate their source. If the licensee has modified the data in any way they are obligated to describe the types of modifications they have performed on the hardcopy map. Licensee specifically agrees not to misrepresent these data sets, nor to imply that changes they made were approved by the U.S. Geological Survey. Suzanne W. Nicholson U.S. Geological Survey mailing and physical address

12201 Sunrise Valley Dr. MS954

Reston VA 20192 USA 703-648-6344 swnich@usgs.gov State Geologic Map Compilation (SGMC) activity of the National Surveys and Analysis projects of the US Geological Survey Mineral Resources Program. ARC/INFO version 8.3 ArcView 3.2 The values of the attributes ROCKTYPE1 and ROCKTYPE2 were assigned based on the information in the legends of the source maps (most of which are paper). The definitions of these values are described in the draft document Geologic Map Classification version 6.1 (Johnson and others); available at the following website: http://geology.usgs.gov/dm All internal polygons were checked for closure with vendor software and on hard copy plots. Overshoots and undershoots have been deleted or corrected as appropriate. Bodies of water are classified as water, and the geologic units underlying them are not included in this coverage. Accuracy of North Carolina state boundary and those arcs intersecting it: The accuracy of the state boundary arcs is based on the 1:100,000 scale original data used to produce this boundary. (Johnson, Bruce R. and Leveritch, Beth, 1998, 1:100,000 Scale State Boundaries of the Conterminous United States: U.S. Geological Survey, unpublished (see metadata file: st100kmeta.txt, Chapter A)) Those internal arcs intersecting the state boundary were extended or shortened as needed to complete polygons, possibly creating a small amount of error. The purpose of this standardization is to allow all SGMC covers to be seamlessly joined without any additional effort to form regional or national level digital maps. Note that for Alaska, the state is being compiled as blocks of 1:250k quadrangles that will ultimately be used to compile a new state map. Douglas Stoeser and Ric Wilson are co-coordinators for the overall SGMC effort, with Stoeser coordinating work on the mainland states and Wilson coordinating work for Alaska and Hawaii. 2003 - 2004 C.L. Dicken obtained the digital geologic map of North Carolina by purchasing the dataset from NORTH CAROLINA CORPORATE GEOGRAPHIC DATABASE (http://www.cgia.state.nc.us). The coverage was re-projected into the following: projection: Lambert Conformal Conic units: meters datum: NAD27 standard parallel 1: 33 0 0.000 standard parallel 2: 45 0 0.000 central meridian: -100 0 0.000 reference latitude: 0 0 0.000 false easting: 0.00000 false northing: 0.00000 All attributes were deleted except GEO-NAME. (Note: Attributes associated with the generation of the coverages were not deleted. PAT - shape, area, perimeter, coverage#, and coverage-id AAT - shape, fnode#, tnode#, lnode#, rnode#, length, coverage#, and coverage-id) The values from GEO-NAME where then calculated into a new field called orig_label. 20031211 The relevant state outline (arcs) was removed from the coverage and replaced with the arcs from the 1:100,000 Scale State Boundaries of the Conterminous United States. This allows for a seamless fit of each state to a standard state boundary base. 20041130 The following attributes were exported from Filemaker as a .dbf: orig_label, map_symbol2, unit_link, reference_id, unit_age, rocktype1, and rocktype2. orig_label reflects the original map symbol used on the source map map_symbol2 reflects map-symbol1 with the addition of a province number unit_link is an auto generated field based on map-symbol2 and the state abbreviation (e.g. IN001) that produces a unique identifier for each map unit reference_id was populated with an alphanumeric code (e.g. US001) that designates the source used for the linework and other references used to describe the age or lithologies of the unit. unit_age was populated with general age assignment rocktype1 records dominant lithology (must be >50% of unit), using standardized data dictionary rocktype2 records second most dominant lithology, using standardized data dictionary The attributes were then converted using the following structure: item name: orig_label width: 12 output: 12 type: c item name: sgmc_label width: 16 output: 16 type: c item name: unit_link width: 18 output: 18 type: c item name: source width: 6 output: 8 type: c item name: unit_age width: 60 output: 60 type: c item name: rocktype1 width: 40 output: 40 type: c item name: rocktype2 width: 40 output: 40 type: c 20041130 Once the .dbf was in the correct format with standardized column widths and data structure, it was converted into a lookup table (.lut) in Arc/Info. Then a joinitem was performed to join the look-up table to the polygon attribute table. orig_label was used as the merge item. Special attention was taken to this join because there are multiple units that have more than one province assoicated with the orig_label. Due to this, when joining on orig_label, not all polygons will have the correct attributes associated with them. C.L. Dicken had to go into the coverage after the join and manually update those units with multiple provinces. There are 28 units in North Carolina. 20041201 Next, in preparing the uniform .aat file, the following items were added to the table: item name: arc-code width: 3 output: 3 type: i item name: arc-para1 width: 3 output: 3 type: i item name: arc-para2 width: 3 output: 3 type: i item name: source width: 6 output: 8 type: c 20041201 Arc-code was populated using the paper map source to tag the lines using the AAT line type data dictionary (see Chapter A in this series). Arc-para1 was populated when additional information was available such as identifying the upthrown side of a fault or direction of thrusting on a fault. (see Chapter A) Arc-para2 is a scratch field that is used mostly in Alaska. Source was populated with an alphanumeric code (e.g. US001) that designates the source used for the linework. 20041201 The following polygons were modified from the digital source material to match the paper source map. ZYbA was changed to ZYba (one polygon) Dsc was changed to DSc (five polygons) Deleted polygon CZma and removed 3 arcs associated with that polygon. Changed PzZq to PzZg (one polygon) Changed CZv to CZfv (one polygon) Changed CZg to CZbg (one polygon) Split one polygon of Ybgg into two separate polygons because of province boundaries. These changes were sourced as NC202. Additionally, fsome aults were heads-up digitized from state file and sourced as NC101. 20041206 Once the .aat and the .pat were populated with the correct attributes, the coverage was exported as an .e00 file (ncgeol_lcc.e00). Then it was unprojected into geographic coordinates and exported again (ncgeol_dd.e00). The faults were extracted to generate a separate fault file. PUT was the command used to copy the line features from the geology line coverage into a new fault line coverage. The data were exported as ncfaults_lcc.e00 and then unprojected into geographic coordinates and exported again (ncfaults_dd.e00). Finally, the geology lines, geology polygons and fault line coverages were converted into shapefiles; in both geographic coordinates and in Lambert Conformal Conic projection. Vector Lambert Conformal Conic 33 45 -100.0 0 0.00000 0.00000 coordinate pair 0.01 0.01 Meters North American Datum of 1927 Clarke 1866 6378206.4 294.98 nc_geol.pat Polygon attribute table for the North Carolina geologic coverage. ESRI orig_label unmodified map unit symbol from source cover. type: character width: 12 output width: 12 Doug Stoeser bz Rocks of Brevard Fault Zone Ccl Chilhowee Group; Lower Chilhowee Ccu Chilhowee Group; Upper Chilhowee Chg Henderson Gneiss Cr Rome Formation Cs Shady Dolomite CZab Amphibolite and Biotite Gneiss CZam Amphibolite CZba Megacrystic Biotite Gneiss CZbb Banded Gneiss CZbf Fine-grained Biotite Gneiss CZbg Biotite Gneiss and Schist CZbl Blacksburg Formation CZc Volcanic Metaconglomerate CZfg Felsic Mica Gneiss CZfv Felsic Metavolcanic Rock CZfv1 Uwharrie Formation; Felsic Metavolcanic Rock CZfv2 Cid Formation; Felsic Metavolcanic Rock CZg Metamorphosed Granitic Rock CZgms Garnet-Mica Schist CZig Injected Gneiss CZiv Intermediate Metavolcanic Rock CZlg Lineated Felsic Mica Gneiss CZma1 Metagraywacke, Amphibolite, and Kyanite Schist CZma2 Metagraywacke CZmd Metamudstone and Meta-Argillite CZmd1 Tillery Formation; Metamudstone and Meta-Argillite CZmd2 Cid Formation; Metamudstone and Meta-Argillite CZmd3 Floyd Church Formation; Metamudstone and Meta-Argillite CZmg Metagraywacke and Muscovite-Biotite Schist CZms Mica Schist CZmv Mafic Metavolcanic Rock CZmv1 Cid Formation; Mafic Metavolcanic Rock CZpg Inequigranular Biotite Gneiss CZph Phyllite and Schist CZq Quartzite CZtp Porphyroblastic Gneiss CZv Metavolcanic Rock CZve Metavolcanic-Epiclastic Rock CZy Yadkin Formation DOg Granitic Rock DOgb Gabbro of Concord Plutonic Suite Dqd Quartz Diorite to Granodiorite DSc Caesars Head Granite Gneiss DSg Granite of Salisbury Plutonic Suite DSs Syenite of Concord Plutonic Suite Jd Diabase Jr Rhyolite Kb Black Creek Formation Kc Cape Fear Formation Km Middendorf Formation Kp Peedee Formation Mc Cherryville Granite OCg Metamorphosed Granitic Rock OCgm Migmatitic Granitic Gneiss Org Rabun Gneiss PPg Granitic Rock PPgb Pee Dee Gabbro PPmg Foliated to Massive Granitic Rock PzZg Metamorphosed Gabbro and Diorite PzZm Metamorphosed Mafic Rock PzZq Metamorphosed Quartz Diorite PzZu Meta-ultramafic Rock Qp Surficial Deposits, Undivided Sg Shelton Granite Gneiss SOgg Granite Gneiss Tec Castle Hayne Formation; Comfort Member and New Hanover Member, undivided Tecs Castle Hayne Formation; Spring Garden Member Tob Belgrade Formation, Undivided Tor River Bend Formation Tp Pinehurst Formation Tpa Beaufort Formation, Undivided Tpy Yorktown Formation and Duplin Formation, Undivided Tpyw Waccamaw Formation TRc Newark Supergroup, Chatham Group; Chatham Group, Undivided TRcc Newark Supergroup, Chatham Group; Cumnock Formation TRcp Newark Supergroup, Chatham Group; Pekin Formation TRcs Newark Supergroup, Chatham Group; Sanford Formation TRd Newark Supergroup, Dan River Group; Dan River Group, Undivided TRdc Newark Supergroup, Dan River Group; Cow Branch Formation TRdp Newark Supergroup, Dan River Group; Pine Hall Formation TRds Newark Supergroup, Dan River Group; Stoneville Formation Tt Terrace Deposits and Upland Sediment water water Ybam Amphibolite Ybgg Biotite Granitic Gneiss Ybrg Blowing Rock Gneiss Yg Granitic Gneiss Ygg Granodioritic Gneiss Ymam Amphibolite Ymg Migmatitic Biotite-Hornblende Gneisses Ytg Toxaway Gneiss Za Ocoee Supergroup, Great Smokey Group; Anakeesta Formation Zaba Alligator Back Formation; Amphibolite Zabg Alligator Back Formation; Gneiss Zabs Alligator Back Formation; Mica schist and phyllite Zata Ashe Metamorphic Suite and Tallulah Falls Formation; Amphibolite Zatb Ashe Metamorphic Suite and Tallulah Falls Formation; Biotite gneiss Zatm Ashe Metamorphic Suite and Tallulah Falls Formation; Muscovite-biotite gneiss Zats Ashe Metamorphic Suite and Tallulah Falls Formation; Mica schist Zatw Ashe Metamorphic Suite and Tallulah Falls Formation; Metagraywacke Zb Brasstown Formation Zbg Ocoee Supergroup, Great Smokey Group; Boyd Gap Formation Zbt Battleground Formation Zch Ocoee Supergroup, Great Smokey Group; Copperhill Formation Zchs Ocoee Supergroup, Great Smokey Group; Slate of Copperhill Formation Zco Coweeta Group Zd Ocoee Supergroup, Great Smokey Group; Dean Formation Zf Ocoee Supergroup, Great Smokey Group; Phyllite Zg Metamorphosed Granitic Rock Zgma Chilhowee Group, Grandfather Mountain Formation; Meta-arkose Zgmf Chilhowee Group, Grandfather Mountain Formation; Porphyritic felsic volcanic rock Zgmg Chilhowee Group, Grandfather Mountain Formation; Greenstone Zgms Chilhowee Group, Grandfather Mountain Formation; Metasiltstone Zgmu Chilhowee Group, Grandfather Mountain Formation; Felsic metavolcanic rocks and metasedimentary rocks Zgmw Chilhowee Group, Grandfather Mountain Formation; Metagraywacke Zgs Ocoee Supergroup; Great Smokey Group, undivided Zhha Ocoee Supergroup, Great Smokey Group; Metasandstone, Metagraywacke, Metasiltstone, and Mica Schist Zlm Linville Metadiabase Zm Max Patch Granite Zman Murphy Marble, Andrews Formation, and Nottely Quartzite, undivided Zmb Mineral Bluff Formation Zmf Mount Rogers Formation; Metafelsite Zml Mount Rogers Formation; Metagraywacke Znt Nantahala Formation and Tusquitee Quartzite, undivided Zrb Ocoee Supergroup, Great Smokey Group; Rich Butt Sandstone Zs Ocoee Supergroup, Snowbird Group, undivided Zsl Ocoee Supergroup, Snowbird Group; Longarm Quartzite Zsp Ocoee Supergroup, Snowbird Group; Pigeon Siltstone Zsr Ocoee Supergroup, Snowbird Group; Roaring Fork Sandstone Zss Ocoee Supergroup, Walden Creek Group; Sandsuck Formation Zsw Ocoee Supergroup, Snowbird Group; Wading Branch Formation Zwc Ocoee Supergroup; Walden Creek Group, undivided Zwe Ocoee Supergroup, Great Smokey Group; Wehutty Formation ZYba Coweeta Group; Amphibolite ZYbn Coweeta Group; Biotite Gneiss sgmc_label orig_label + ;n where n= province number (n=0 if no province number) type: character width: 16 output width: 16 Doug Stoeser bz;5 Rocks of Brevard Fault Zone CAcl;2 Chilhowee Group; Lower Chilhowee CAcl;3 Chilhowee Group; Lower Chilhowee CAcu;2 Chilhowee Group; Upper Chilhowee CAcu;3 Chilhowee Group; Upper Chilhowee CAhg;5 Henderson Gneiss CAr;2 Rome Formation CAs;2 Shady Dolomite CAs;3 Shady Dolomite CAZab;5 Amphibolite and Biotite Gneiss CAZam;1 Amphibolite CAZam;2 Amphibolite CAZam;5 Amphibolite CAZam;8 Amphibolite CAZba;5 Megacrystic Biotite Gneiss CAZbb;5 Banded Gneiss CAZbf;4 Fine-grained Biotite Gneiss CAZbf;5 Fine-grained Biotite Gneiss CAZbf;6 Fine-grained Biotite Gneiss CAZbg;5 Biotite Gneiss and Schist CAZbg;6 Biotite Gneiss and Schist CAZbg;7 Biotite Gneiss and Schist CAZbg;8 Biotite Gneiss and Schist CAZbl;4 Blacksburg Formation CAZc;7 Volcanic Metaconglomerate CAZfg;6 Felsic Mica Gneiss CAZfg;8 Felsic Mica Gneiss CAZfv;6 Felsic Metavolcanic Rock CAZfv;7 Felsic Metavolcanic Rock CAZfv;10 Felsic Metavolcanic Rock CAZfv1;7 Uwharrie Formation; Felsic Metavolcanic Rock CAZfv2;7 Cid Formation; Felsic Metavolcanic Rock CAZg;6 Metamorphosed Granitic Rock CAZg;7 Metamorphosed Granitic Rock CAZg;8 Metamorphosed Granitic Rock CAZg;10 Metamorphosed Granitic Rock CAZgms;5 Garnet-Mica Schist CAZig;8 Injected Gneiss CAZiv;7 Intermediate Metavolcanic Rock CAZiv;10 Intermediate Metavolcanic Rock CAZlg;8 Lineated Felsic Mica Gneiss CAZma1;5 Metagraywacke, Amphibolite, and Kyanite Schist CAZma2;5 Metagraywacke CAZmd;7 Metamudstone and Meta-Argillite CAZmd;10 Metamudstone and Meta-Argillite CAZmd1;7 Tillery Formation; Metamudstone and Meta-Argillite CAZmd2;7 Cid Formation; Metamudstone and Meta-Argillite CAZmd3;7 Floyd Church Formation; Metamudstone and Meta-Argillite CAZmg;5 Metagraywacke and Muscovite-Biotite Schist CAZms;5 Mica Schist CAZms;8 Mica Schist CAZmv;6 Mafic Metavolcanic Rock CAZmv;7 Mafic Metavolcanic Rock CAZmv;10 Mafic Metavolcanic Rock CAZmv1;7 Cid Formation; Mafic Metavolcanic Rock CAZpg;5 Inequigranular Biotite Gneiss CAZph;5 Phyllite and Schist CAZph;6 Phyllite and Schist CAZph;7 Phyllite and Schist CAZph;8 Phyllite and Schist CAZph;10 Phyllite and Schist CAZq;5 Quartzite CAZq;6 Quartzite CAZq;10 Quartzite CAZtp;5 Porphyroblastic Gneiss CAZv;6 Metavolcanic Rock CAZv;7 Metavolcanic Rock CAZve;7 Metavolcanic-Epiclastic Rock CAZve;10 Metavolcanic-Epiclastic Rock CAZy;7 Yadkin Formation DOg;6 Granitic Rock DOgb;6 Gabbro of Concord Plutonic Suite Dqd;2 Quartz Diorite to Granodiorite DSc;5 Caesars Head Granite Gneiss DSg;6 Granite of Salisbury Plutonic Suite DSs;6 Syenite of Concord Plutonic Suite Jd;4 Diabase Jd;5 Diabase Jd;6 Diabase Jd;7 Diabase Jd;8 Diabase Jd;9 Diabase Jd;10 Diabase Jr;8 Rhyolite Jr;10 Rhyolite Kb;11 Black Creek Formation Kc;11 Cape Fear Formation Km;11 Middendorf Formation Kp;11 Peedee Formation Mc;4 Cherryville Granite Mc;5 Cherryville Granite OCAg;5 Metamorphosed Granitic Rock OCAgm;5 Migmatitic Granitic Gneiss Org;2 Rabun Gneiss PPAg;6 Granitic Rock PPAg;7 Granitic Rock PPAg;8 Granitic Rock PPAg;10 Granitic Rock PAgb;7 Pee Dee Gabbro PPAmg;4 Foliated to Massive Granitic Rock PPAmg;8 Foliated to Massive Granitic Rock PPAmg;10 Foliated to Massive Granitic Rock PZZg;5 Metamorphosed Gabbro and Diorite PZZg;6 Metamorphosed Gabbro and Diorite PZZg;7 Metamorphosed Gabbro and Diorite PZZg;8 Metamorphosed Gabbro and Diorite PZZg;10 Metamorphosed Gabbro and Diorite PZZm;6 Metamorphosed Mafic Rock PZZm;7 Metamorphosed Mafic Rock PZZq;4 Metamorphosed Quartz Diorite PZZq;6 Metamorphosed Quartz Diorite PZZq;7 Metamorphosed Quartz Diorite PZZq;10 Metamorphosed Quartz Diorite PZZu;2 Meta-ultramafic Rock PZZu;5 Meta-ultramafic Rock PZZu;6 Meta-ultramafic Rock PZZu;7 Meta-ultramafic Rock PZZu;8 Meta-ultramafic Rock PZZu;10 Meta-ultramafic Rock Qp;11 Surficial Deposits, Undivided Sg;6 Shelton Granite Gneiss SOgg;5 Granite Gneiss Tec;11 Castle Hayne Formation; Comfort Member and New Hanover Member, undivided Tecs;11 Castle Hayne Formation; Spring Garden Member Tob;11 Belgrade Formation, Undivided Tor;11 River Bend Formation Tp;11 Pinehurst Formation Tpa;11 Beaufort Formation, Undivided Tpy;11 Yorktown Formation and Duplin Formation, Undivided Tpyw;11 Waccamaw Formation TRc;9 Newark Supergroup, Chatham Group; Chatham Group, Undivided TRcc;9 Newark Supergroup, Chatham Group; Cumnock Formation TRcp;9 Newark Supergroup, Chatham Group; Pekin Formation TRcs;9 Newark Supergroup, Chatham Group; Sanford Formation TRd;9 Newark Supergroup, Dan River Group; Dan River Group, Undivided TRdc;9 Newark Supergroup, Dan River Group; Cow Branch Formation TRdp;9 Newark Supergroup, Dan River Group; Pine Hall Formation TRds;9 Newark Supergroup, Dan River Group; Stoneville Formation Tt;11 Terrace Deposits and Upland Sediment water;0 water Ybam;2 Amphibolite Ybgg;2 Biotite Granitic Gneiss Ybgg;3 Biotite Granitic Gneiss Y3brg;3 Blowing Rock Gneiss Y3g;5 Granitic Gneiss Y3gg;2 Granodioritic Gneiss Ymam;2 Amphibolite Y2mg;2 Migmatitic Biotite-Hornblende Gneisses Y2tg;2 Toxaway Gneiss Za;2 Ocoee Supergroup, Great Smokey Group; Anakeesta Formation Zaba;2 Alligator Back Formation; Amphibolite Zabg;2 Alligator Back Formation; Gneiss Zabs;2 Alligator Back Formation; Mica schist and phyllite Zata;2 Ashe Metamorphic Suite and Tallulah Falls Formation; Amphibolite Zatb;2 Ashe Metamorphic Suite and Tallulah Falls Formation; Biotite gneiss Zatm;2 Ashe Metamorphic Suite and Tallulah Falls Formation; Muscovite-biotite gneiss Zats;2 Ashe Metamorphic Suite and Tallulah Falls Formation; Mica schist Zatw;2 Ashe Metamorphic Suite and Tallulah Falls Formation; Metagraywacke Zb;1 Brasstown Formation Zbg;2 Ocoee Supergroup, Great Smokey Group; Boyd Gap Formation Zbt;4 Battleground Formation Zch;2 Ocoee Supergroup, Great Smokey Group; Copperhill Formation Zchs;2 Ocoee Supergroup, Great Smokey Group; Slate of Copperhill Formation Zco;2 Coweeta Group Zd;2 Ocoee Supergroup, Great Smokey Group; Dean Formation Zf;2 Ocoee Supergroup, Great Smokey Group; Phyllite Zg;2 Metamorphosed Granitic Rock Zg;3 Metamorphosed Granitic Rock Zg;5 Metamorphosed Granitic Rock Zgma;3 Chilhowee Group, Grandfather Mountain Formation; Meta-arkose Zgmf;3 Chilhowee Group, Grandfather Mountain Formation; Porphyritic felsic volcanic rock Zgmg;3 Chilhowee Group, Grandfather Mountain Formation; Greenstone Zgms;3 Chilhowee Group, Grandfather Mountain Formation; Metasiltstone Zgmu;3 Chilhowee Group, Grandfather Mountain Formation; Felsic metavolcanic rocks and metasedimentary rocks Zgmw;3 Chilhowee Group, Grandfather Mountain Formation; Metagraywacke Zgs;2 Ocoee Supergroup; Great Smokey Group, undivided Zhha;2 Ocoee Supergroup, Great Smokey Group; Metasandstone, Metagraywacke, Metasiltstone, and Mica Schist Zlm;3 Linville Metadiabase Zm;2 Max Patch Granite Zman;1 Murphy Marble, Andrews Formation, and Nottely Quartzite, undivided Zmb;1 Mineral Bluff Formation Zmf;2 Mount Rogers Formation; Metafelsite Zml;2 Mount Rogers Formation; Metagraywacke Znt;1 Nantahala Formation and Tusquitee Quartzite, undivided Zrb;2 Ocoee Supergroup, Great Smokey Group; Rich Butt Sandstone Zs;2 Ocoee Supergroup, Snowbird Group, undivided Zsl;2 Ocoee Supergroup, Snowbird Group; Longarm Quartzite Zsp;2 Ocoee Supergroup, Snowbird Group; Pigeon Siltstone Zsr;2 Ocoee Supergroup, Snowbird Group; Roaring Fork Sandstone Zss;2 Ocoee Supergroup, Walden Creek Group; Sandsuck Formation Zsw;2 Ocoee Supergroup, Snowbird Group; Wading Branch Formation Zwc;2 Ocoee Supergroup; Walden Creek Group, undivided Zwe;2 Ocoee Supergroup, Great Smokey Group; Wehutty Formation ZYba;2 Coweeta Group; Amphibolite ZYbn;2 Coweeta Group; Biotite Gneiss unit_link composite map label = ST + sgmc_label This creates a unique identifier for every unit in the CONUS (continental United States) covers. type: character width: 18 output width: 18 Doug Stoeser NCbz;5 Rocks of Brevard Fault Zone NCCAcl;2 Chilhowee Group; Lower Chilhowee NCCAcl;3 Chilhowee Group; Lower Chilhowee NCCAcu;2 Chilhowee Group; Upper Chilhowee NCCAcu;3 Chilhowee Group; Upper Chilhowee NCCAhg;5 Henderson Gneiss NCCAr;2 Rome Formation NCCAs;2 Shady Dolomite NCCAs;3 Shady Dolomite NCCAZab;5 Amphibolite and Biotite Gneiss NCCAZam;1 Amphibolite NCCAZam;2 Amphibolite NCCAZam;5 Amphibolite NCCAZam;8 Amphibolite NCCAZba;5 Megacrystic Biotite Gneiss NCCAZbb;5 Banded Gneiss NCCAZbf;4 Fine-grained Biotite Gneiss NCCAZbf;5 Fine-grained Biotite Gneiss NCCAZbf;6 Fine-grained Biotite Gneiss NCCAZbg;5 Biotite Gneiss and Schist NCCAZbg;6 Biotite Gneiss and Schist NCCAZbg;7 Biotite Gneiss and Schist NCCAZbg;8 Biotite Gneiss and Schist NCCAZbl;4 Blacksburg Formation NCCAZc;7 Volcanic Metaconglomerate NCCAZfg;6 Felsic Mica Gneiss NCCAZfg;8 Felsic Mica Gneiss NCCAZfv;6 Felsic Metavolcanic Rock NCCAZfv;7 Felsic Metavolcanic Rock NCCAZfv;10 Felsic Metavolcanic Rock NCCAZfv1;7 Uwharrie Formation; Felsic Metavolcanic Rock NCCAZfv2;7 Cid Formation; Felsic Metavolcanic Rock NCCAZg;6 Metamorphosed Granitic Rock NCCAZg;7 Metamorphosed Granitic Rock NCCAZg;8 Metamorphosed Granitic Rock NCCAZg;10 Metamorphosed Granitic Rock NCCAZgms;5 Garnet-Mica Schist NCCAZig;8 Injected Gneiss NCCAZiv;7 Intermediate Metavolcanic Rock NCCAZiv;10 Intermediate Metavolcanic Rock NCCAZlg;8 Lineated Felsic Mica Gneiss NCCAZma1;5 Metagraywacke, Amphibolite, and Kyanite Schist NCCAZma2;5 Metagraywacke NCCAZmd;7 Metamudstone and Meta-Argillite NCCAZmd;10 Metamudstone and Meta-Argillite NCCAZmd1;7 Tillery Formation; Metamudstone and Meta-Argillite NCCAZmd2;7 Cid Formation; Metamudstone and Meta-Argillite NCCAZmd3;7 Floyd Church Formation; Metamudstone and Meta-Argillite NCCAZmg;5 Metagraywacke and Muscovite-Biotite Schist NCCAZms;5 Mica Schist NCCAZms;8 Mica Schist NCCAZmv;6 Mafic Metavolcanic Rock NCCAZmv;7 Mafic Metavolcanic Rock NCCAZmv;10 Mafic Metavolcanic Rock NCCAZmv1;7 Cid Formation; Mafic Metavolcanic Rock NCCAZpg;5 Inequigranular Biotite Gneiss NCCAZph;5 Phyllite and Schist NCCAZph;6 Phyllite and Schist NCCAZph;7 Phyllite and Schist NCCAZph;8 Phyllite and Schist NCCAZph;10 Phyllite and Schist NCCAZq;5 Quartzite NCCAZq;6 Quartzite NCCAZq;10 Quartzite NCCAZtp;5 Porphyroblastic Gneiss NCCAZv;6 Metavolcanic Rock NCCAZv;7 Metavolcanic Rock NCCAZve;7 Metavolcanic-Epiclastic Rock NCCAZve;10 Metavolcanic-Epiclastic Rock NCCAZy;7 Yadkin Formation NCDOg;6 Granitic Rock NCDOgb;6 Gabbro of Concord Plutonic Suite NCDqd;2 Quartz Diorite to Granodiorite NCDSc;5 Caesars Head Granite Gneiss NCDSg;6 Granite of Salisbury Plutonic Suite NCDSs;6 Syenite of Concord Plutonic Suite NCJd;4 Diabase NCJd;5 Diabase NCJd;6 Diabase NCJd;7 Diabase NCJd;8 Diabase NCJd;9 Diabase NCJd;10 Diabase NCJr;8 Rhyolite NCJr;10 Rhyolite NCKb;11 Black Creek Formation NCKc;11 Cape Fear Formation NCKm;11 Middendorf Formation NCKp;11 Peedee Formation NCMc;4 Cherryville Granite NCMc;5 Cherryville Granite NCOCAg;5 Metamorphosed Granitic Rock NCOCAgm;5 Migmatitic Granitic Gneiss NCOrg;2 Rabun Gneiss NCPPAg;6 Granitic Rock NCPPAg;7 Granitic Rock NCPPAg;8 Granitic Rock NCPPAg;10 Granitic Rock NCPAgb;7 Pee Dee Gabbro NCPPAmg;4 Foliated to Massive Granitic Rock NCPPAmg;8 Foliated to Massive Granitic Rock NCPPAmg;10 Foliated to Massive Granitic Rock NCPZZg;5 Metamorphosed Gabbro and Diorite NCPZZg;6 Metamorphosed Gabbro and Diorite NCPZZg;7 Metamorphosed Gabbro and Diorite NCPZZg;8 Metamorphosed Gabbro and Diorite NCPZZg;10 Metamorphosed Gabbro and Diorite NCPZZm;6 Metamorphosed Mafic Rock NCPZZm;7 Metamorphosed Mafic Rock NCPZZq;4 Metamorphosed Quartz Diorite NCPZZq;6 Metamorphosed Quartz Diorite NCPZZq;7 Metamorphosed Quartz Diorite NCPZZq;10 Metamorphosed Quartz Diorite NCPZZu;2 Meta-ultramafic Rock NCPZZu;5 Meta-ultramafic Rock NCPZZu;6 Meta-ultramafic Rock NCPZZu;7 Meta-ultramafic Rock NCPZZu;8 Meta-ultramafic Rock NCPZZu;10 Meta-ultramafic Rock NCQp;11 Surficial Deposits, Undivided NCSg;6 Shelton Granite Gneiss NCSOgg;5 Granite Gneiss NCTec;11 Castle Hayne Formation; Comfort Member and New Hanover Member, undivided NCTecs;11 Castle Hayne Formation; Spring Garden Member NCTob;11 Belgrade Formation, Undivided NCTor;11 River Bend Formation NCTp;11 Pinehurst Formation NCTpa;11 Beaufort Formation, Undivided NCTpy;11 Yorktown Formation and Duplin Formation, Undivided NCTpyw;11 Waccamaw Formation NCTRc;9 Newark Supergroup, Chatham Group; Chatham Group, Undivided NCTRcc;9 Newark Supergroup, Chatham Group; Cumnock Formation NCTRcp;9 Newark Supergroup, Chatham Group; Pekin Formation NCTRcs;9 Newark Supergroup, Chatham Group; Sanford Formation NCTRd;9 Newark Supergroup, Dan River Group; Dan River Group, Undivided NCTRdc;9 Newark Supergroup, Dan River Group; Cow Branch Formation NCTRdp;9 Newark Supergroup, Dan River Group; Pine Hall Formation NCTRds;9 Newark Supergroup, Dan River Group; Stoneville Formation NCTt;11 Terrace Deposits and Upland Sediment NCwater;0 water NCYbam;2 Amphibolite NCYbgg;2 Biotite Granitic Gneiss NCYbgg;3 Biotite Granitic Gneiss NCY3brg;3 Blowing Rock Gneiss NCY3g;5 Granitic Gneiss NCY3gg;2 Granodioritic Gneiss NCYmam;2 Amphibolite NCY2mg;2 Migmatitic Biotite-Hornblende Gneisses NCY2tg;2 Toxaway Gneiss NCZa;2 Ocoee Supergroup, Great Smokey Group; Anakeesta Formation NCZaba;2 Alligator Back Formation; Amphibolite NCZabg;2 Alligator Back Formation; Gneiss NCZabs;2 Alligator Back Formation; Mica schist and phyllite NCZata;2 Ashe Metamorphic Suite and Tallulah Falls Formation; Amphibolite NCZatb;2 Ashe Metamorphic Suite and Tallulah Falls Formation; Biotite gneiss NCZatm;2 Ashe Metamorphic Suite and Tallulah Falls Formation; Muscovite-biotite gneiss NCZats;2 Ashe Metamorphic Suite and Tallulah Falls Formation; Mica schist NCZatw;2 Ashe Metamorphic Suite and Tallulah Falls Formation; Metagraywacke NCZb;1 Brasstown Formation NCZbg;2 Ocoee Supergroup, Great Smokey Group; Boyd Gap Formation NCZbt;4 Battleground Formation NCZch;2 Ocoee Supergroup, Great Smokey Group; Copperhill Formation NCZchs;2 Ocoee Supergroup, Great Smokey Group; Slate of Copperhill Formation NCZco;2 Coweeta Group NCZd;2 Ocoee Supergroup, Great Smokey Group; Dean Formation NCZf;2 Ocoee Supergroup, Great Smokey Group; Phyllite NCZg;2 Metamorphosed Granitic Rock NCZg;3 Metamorphosed Granitic Rock NCZg;5 Metamorphosed Granitic Rock NCZgma;3 Chilhowee Group, Grandfather Mountain Formation; Meta-arkose NCZgmf;3 Chilhowee Group, Grandfather Mountain Formation; Porphyritic felsic volcanic rock NCZgmg;3 Chilhowee Group, Grandfather Mountain Formation; Greenstone NCZgms;3 Chilhowee Group, Grandfather Mountain Formation; Metasiltstone NCZgmu;3 Chilhowee Group, Grandfather Mountain Formation; Felsic metavolcanic rocks and metasedimentary rocks NCZgmw;3 Chilhowee Group, Grandfather Mountain Formation; Metagraywacke NCZgs;2 Ocoee Supergroup; Great Smokey Group, undivided NCZhha;2 Ocoee Supergroup, Great Smokey Group; Metasandstone, Metagraywacke, Metasiltstone, and Mica Schist NCZlm;3 Linville Metadiabase NCZm;2 Max Patch Granite NCZman;1 Murphy Marble, Andrews Formation, and Nottely Quartzite, undivided NCZmb;1 Mineral Bluff Formation NCZmf;2 Mount Rogers Formation; Metafelsite NCZml;2 Mount Rogers Formation; Metagraywacke NCZnt;1 Nantahala Formation and Tusquitee Quartzite, undivided NCZrb;2 Ocoee Supergroup, Great Smokey Group; Rich Butt Sandstone NCZs;2 Ocoee Supergroup, Snowbird Group, undivided NCZsl;2 Ocoee Supergroup, Snowbird Group; Longarm Quartzite NCZsp;2 Ocoee Supergroup, Snowbird Group; Pigeon Siltstone NCZsr;2 Ocoee Supergroup, Snowbird Group; Roaring Fork Sandstone NCZss;2 Ocoee Supergroup, Walden Creek Group; Sandsuck Formation NCZsw;2 Ocoee Supergroup, Snowbird Group; Wading Branch Formation NCZwc;2 Ocoee Supergroup; Walden Creek Group, undivided NCZwe;2 Ocoee Supergroup, Great Smokey Group; Wehutty Formation NCZYba;2 Coweeta Group; Amphibolite NCZYbn;2 Coweeta Group; Biotite Gneiss source An alphanumeric code (e.g. US001) that designates the source material used. type: character width: 6 output width: 8 Doug Stoeser NC001 Rhodes, Thomas S., and Conrad, Stephen G., 1985, Geologic Map of North Carolina: Department of Natural Resources and Community Development, Division of Land Resources, and the NC Geological Survey, 1:500,000-scale, compiled by Brown, Philip M., et al, and Parker, John M. III, and in association with the State Geologic Map Advisory Committee. NC002 The North Carolina Dept. of Environment, Health, and Natural Resources, Division of Land Resources, NC Geological Survey, in cooperation with the NC Center for Geographic Information and Analysis, 1998, Geology - North Carolina (1:250,000), coverage data file geol250. The data represents the digital equivalent of the official State Geology map (1:500,000 scale), but was digitized from (1:250,000 scale) base maps. NC201 Water polygons that are generated when the standard base map is used (US001). NC202 Polygon attributes were modified by C.L. Dicken to match paper source (NC002). unit_age The geologic age from the source map used. type: character width: 60 output width: 60 Doug Stoeser Cambrian Cambrian/Late Proterozoic Cretaceous Devonian Devonian/Ordovician Devonian/Silurian Jurassic Late Middle Proterozoic Late Proterozoic Middle Proterozoic Middle/Late Proterozoic Mississippian Ordovician Ordovician/Cambrian Paleozoic/Late Proterozoic Pennsylvanian Permian/Pennsylvanian Quaternary Silurian Silurian/Ordovician Tertiary Triassic Uncertain, possibly Permian or Devonian rocktype1 The predominant lithology found in the formation. type: character width: 40 output width: 40 Johnson Lith Class 6.1a amphibolite arenite biotite gneiss carbonate clay or mud conglomerate diabase dolostone (dolomite) felsic gneiss felsic metavolcanic rock gabbro gneiss granite granitic gneiss greenstone intermediate metavolcanic rock lake or marine deposit (non-glacial) limestone mafic metavolcanic rock marble meta-argillite meta-conglomerate metamorphic rock metasedimentary rock mica schist mudstone phyllite quartz diorite quartzite sand sandstone schist shale siltstone slate syenite terrace water rocktype2 The second most predominant lithology in the formation. type: character width: 40 output width: 40 Johnson Lith Class 6.1a amphibolite augen gneiss basalt biotite gneiss calcarenite clay or mud conglomerate dolostone (dolomite) eolian felsic metavolcanic rock gneiss granodiorite gravel greenstone intermediate metavolcanic rock mafic gneiss mafic metavolcanic rock marble meta-argillite meta-conglomerate metasedimentary rock metavolcanic rock mica schist mudstone paragneiss pegmatite phyllite phyllonite quartzite sand sandstone schist serpentinite shale silt siltstone slate nc_geol.aat Arc attribute table for North Carolina geologic coverage. ESRI arc-code Unique identifier for the line feature type: integer width: 3 output width: 3 AAT data dictionary 1 contact, location certain 7 shoreline or riverbank 30 fault, sense of displacement unknown or undefined, location certain 124 state boundary arc-para1 Used for "decorated" lines where additional information is needed. type: integer width: 3 output width: 3 AAT data dictionary 0 no additional information arc-para2 "Scratch" field used mostly in Alaska. type: integer width: 3 output width: 3 AAT data dictionary 0 no additional information source An alphanumeric code (e.g. US001) that designates the source material used. type: character width: 6 output width: 8 Doug Stoeser NC002 The North Carolina Dept. of Environment, Health, and Natural Resources, Division of Land Resources, NC Geological Survey, in cooperation with the NC Center for Geographic Information and Analysis, 1998, Geology - North Carolina (1:250,000), coverage data file geol250. The data represents the digital equivalent of the official State Geology map (1:500,000 scale), but was digitized from (1:250,000 scale) base maps. NC101 Faults that have been heads-up digitized from state fault file by C.L. Dicken. US001 Johnson, Bruce R. and Leveritch, Beth, 1998, 1:100,000 Scale State Boundaries of the Conterminous United States: U.S. Geological Survey, unpublished (see metadata file: st100kmeta.txt, Chapter A) Coding for polygon attributes: NAME: FEATURE: orig_label unmodified map unit symbols from source cover sgmc_label orig_label modified for standard geologic age symbols and an integer code added for province unit_link sgmc_label and a state code identifier source reference to source of data unit_age geologic age rocktype1 predominant lithology rocktype2 second most predominant lithology Coding for arc attributes: NAME: FEATURE: arc-code unique integer identifier arc-para1 used where additional information is needed arc-para2 scratch field source reference to source of data Coding for point attributes: NAME: FEATURE: point_feature name of feature on map source reference to source of data Coding for dikes (special arcs) attributes: NAME: FEATURE: orig_label unmodified map unit symbols from source cover sgmc_label orig_label modified for standard geologic age symbols and an integer code added for province arc-code unique integer identifier dike_lith general lithology dike_age geologic age source reference to source of data ESRI U.S. Geological Survey Information Services Reston-ESIC mailing and physical address

U.S. Geological Survey 507 National Center

Reston Virginia 20192 USA 1-888-ASK-USGS or 1-703-648-5953 http://www.usgs.gov/contact/ Any use of trade, product, or firm names is for descriptive purposes only and does not imply endorsement by the USGS. Although these data have been used by the USGS and have been successfully imported into data base programs, no warranty, expressed or implied, is made by the USGS as to how successfully or accurately the data can be imported into any specific application software running on any specific hardware platform. The fact of distribution shall not constitute any such warranty, and no responsibility is assumed by the USGS in connection therewith. This data base GIS is not meant to be used or displayed at any scale other than 1:500,000. ARC/INFO export 8.3 Geologic units and structural features gzip and tar http://pubs.usgs.gov/of/2005/1323/ none 20050318 U.S. Geological Survey Connie L. Dicken mailing and physical address

12201 Sunrise Valley Dr. MS954

Reston VA 20192 USA 703-648-6482 cdicken@usgs.gov Content Standards for Digital Geospatial Metadata FGDC-STD-001-1998