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Preliminary integrated Geologic Map Databases for the United States: Kentucky, Ohio, Tennessee, and West Virginia

Frequently anticipated questions:

• What does this data set describe?
  1. How might this data set be cited?
  2. What geographic area does the data set cover?
  3. What does it look like?
  4. Does the data set describe conditions during a particular time period?
  5. What is the general form of this data set?
  6. How does the data set represent geographic features?
  7. How does the data set describe geographic features?
• Who produced the data set?
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• Who wrote the metadata?

What does this data set describe?

1. How might this data set be cited?
   Nicholson, Suzanne W., Dicken, Connie L., Horton, John D., Labay, Keith A., Foose, Michael P., and Mueller, Julia A. L., 2005, Preliminary integrated Geologic Map Databases for the United States: Kentucky, Ohio, Tennessee, and West Virginia: U.S. Geological Survey Open-File Report 2005-1324, U.S. Geological Survey, Reston, VA.

   Online Links:

   • http://pubs.usgs.gov/of/2005/1324

2. What geographic area does the data set cover?

   West_Bounding_Coordinate: -90.310449
   East_Bounding_Coordinate: -81.647010
   North_Bounding_Coordinate: 36.678152
   South_Bounding_Coordinate: 34.982919
   

3. What does it look like?
4. Does the data set describe conditions during a particular time period?

   Calendar_Date: 2005

   Currentness_Reference:

   publication date

5. What is the general form of this data set?

   Geospatial_Data_Presentation_Form: map
   

6. How does the data set represent geographic features?
   1. How are geographic features stored in the data set?
      This is a Vector data set.
   2. What coordinate system is used to represent geographic features?
      The map projection used is Lambert Conformal Conic.
      

      Projection parameters:

      Standard_Parallel: 33
      Standard_Parallel: 45
      Longitude_of_Central_Meridian: -100.0
      Latitude_of_Projection_Origin: 0
      False_Easting: 0.00000
      False_Northing: 0.00000
      

      Planar coordinates are encoded using coordinate pair
      Abscissae (x-coordinates) are specified to the nearest 0.01
      Ordinates (y-coordinates) are specified to the nearest 0.01
      Planar coordinates are specified in Meters
      The horizontal datum used is North American Datum of 1927.
      The ellipsoid used is Clarke 1866.
      The semi-major axis of the ellipsoid used is 6378206.4.
      The flattening of the ellipsoid used is 1/294.98.
      
7. How does the data set describe geographic features?

   tn_geol.pat

   Polygon attribute table for the Tennessee geologic coverage. (Source: ESRI)

   ORIG_LABEL

   unmodified map unit symbol from source cover.

   type: character width: 12 output width: 12 (Source: Doug Stoeser)

   Value	Definition
   Cc	Conasauga Group, including Maynardville Limestone, Nolichucky Shale, the Maryville, Rogersville, and Rutledge Formations, Pumpkin Valley Shale, Rome Formation, and Shady Dolomite
   Cc	Berea Sandstone and Bedford Shale, Undivided
   Cc	Conasauga Group, includes Maynardville Limestone, Nolichucky Shale, Honaker Dolomite, Maryville Limestone, Rogersville Shale, Rutledge Limestone, Pumpkin Valley Shale, Rome Formation, Shady Dolomite
   Ccc	Conococheague Limestone
   Cch	Chilhowee Group; Cochran Conglomerate
   Cch	Cochran Conglomerate
   Cchi	Chilhowee Group, including Erwin Formation, Hesse Sandstone, Murray Shale, Nebo Sandstone, Nichols Shale, Cochran Conglomerate, Hampton Formation, and Unicoi Formation
   Ccl	Nolichucky Shale, and Maryville, Rogersville, and Rutledge Formations, and Pumpkin Valley Shale
   Ccl	Maynardville Limestone, Nolichucky Shale, Honaker Dolomite, Maryville Limestone, Rogersville Shale, Rutledge Limestone, Pumpkin Valley Shale
   Ccr	Copper Ridge Dolomite
   Ccr	Copper Ridge Dolomite
   Ccu	Maynardville Limestone, Nolichucky Shale, and Honaker Dolomite
   Ce	Erwin Formation
   Ch	Hampton Formation
   Che	Chilhowee Group; Hesse Sandstone
   Che	Hesse Sandstone
   Chk	Honaker Dolomite
   Cm	Maryville Limestone
   Cmn	Maynardville Limestone
   Cmn	Maynardville Limestone
   Cmr	Maryville, Rogersville, and Rutledge Formations
   Cmr	Maryville Limestone, Rogersville Shale, Rutledge Limestone
   Cmu	Chilhowee Group; Murray Shale
   Cmu	Murray Shale
   Cn	Nolichucky Shale
   Cn	Nolichucky Shale
   Cnb	Chilhowee Group; Nebo Sandstone
   Cnb	Nebo Sandstone
   Cni	Nichols Shale
   Cni	Nichols Shale
   Cpv	Pumpkin Valley Shale
   Cr	Rome Formation
   Cr	Rome Formation
   Crg	Rogersville Shale
   Crt	Rutledge Limestone
   Cs	Shady Dolomite
   Cs	Shady Dolomite
   Cu	Unicoi Formation
   D	Devonian Formations, includes Pegram Formation, Camden Formation, Harriman Formation, Flat Gap Limestone, and Ross Formation
   D	Devonian Formations, including Pegram Formation, Camden Formation, Harriman Formation, Flat Gap Limestone, and Ross Formation
   DSs	Sneedville Limestone
   ig	Intrusive igneous rocks
   ig	Intrusive igneous rocks
   Kc	Coffee Sand
   Kcc	Coon Creek Formation
   Kd	Demopolis Formation
   Ke	Eutaw Formation
   Ke	Eutaw Formation
   Km	McNairy Sand
   Ko	Owl Creek Formation
   Ks	Sardis Formation
   Kt	Tuscaloosa Formation
   Kt	Tuscaloosa Formation
   Mbh	Bangor Limestone and Hartselle Formation
   Mbh	Bangor Limestone and Hartselle Formation
   MDc	Chattanooga Shale
   MDc	Chattanooga Shale
   MDSO	Mississippian, Silurian, Devonian, and Ordovician Formations - containing all or portions of the Newman, Fort Payne, Chattanooga, Rockwood, and Sequatchie formations.
   Mfp	Fort Payne Formation
   Mfp	Fort Payne Formation
   Mfp	Fort Payne Formation and Chattanooga Shale
   Mfp	Fort Payne Formation and Chattanooga Shale
   Mfp	Fort Payne Formation and Chattanooga Shale
   Mg	Grainger Formation
   Mg	Grainger Formation
   Mgg	Greasy Cove Formation, includes Grainger Formation
   Mgg	Greasy Cove Formation and Grainger Formation
   Mm	Monteagle Limestone
   Mm	Monteagle Limestone
   Mn	Newman Limestone
   Mn	Newman Limestone
   Mp	Pennington Formation
   Mp	Pennington Formation
   Mp	Pennington Formation
   Mp	Pennington Formation
   Msg	St. Genevieve Limestone
   Msw	St. Louis Limestone and Warsaw Limestone
   Msw	St. Louis Limestone and Warsaw Limestone
   Msw	St. Louis Limestone and Warsaw Limestone
   O	Ordovician Formations including Richmond Group (Mannie Shale, Fernvale Limestone), and Nashville Group (Hermitage Formation)
   O	Ordovician formations, including Mannie Shale, Fernvale Limestone, Hermitage Formation, and Carters, Lebanon, Ridley, Pierce, and Murfreesboro Limestones
   Oa	Athens Shale
   Oa	Athens Shale
   Ob	Bays Formation
   Ob	Bays Formation
   Obh	Nashville Group; Bigby-Cannon Limestone and Hermitage Formation
   Obh	Bigby-Cannon Limestone and Hermitage Formation
   Obr	Ordovician Breccia
   Obr	Ordovician Breccia
   Oc	Chepultepec Dolomite
   Oc	Chepultepec Dolomite
   Oca	Stones River Group; Carters Limestone
   Oca	Carters Limestone
   OCk	Knox Group, including Newala Formation, Mascot Dolomite, Kingsport Formation, Longview Dolomite, Chepultepec Dolomite, and Copper Ridge Dolomite
   OCk	Knox Group
   OCk	Knox Group, including Jonesboro Limestone, Newala Formation, Mascot Dolomite, Kingsport Formation, Longview Dolomite, Chepultepec Dolomite, Copper Ridge Dolomite, Conococheague Limestone
   OCk	Wells Creek Dolomite and Knox Group
   Och	Chickamauga Group, includes Upper part of Chickamauga Group (Reedsville Shale, and Unnamed limestone unit) and Middle and Lower part of Chickamauga Group (Moccasin Formation, Bays Formation, Ottosee Shale, Holston Formation, Lenoir Limestone, Athens Shale, and Sevier Shale)
   Och	Chickamauga Group
   Oh	Holston Formation
   Oh	Holston Formation
   Oj	Juniata Formation
   Ojb	Jonesboro Limestone
   Ok	Kingsport Formation
   Ok	Kingsport Formation
   Ol	Lenoir Limestone
   Ol	Lenoir Limestone
   Olb	Stones River Group; Lebanon Limestone
   Olb	Lebanon Limestone
   Olc	Longview Dolomite and Chepultepec Dolomite
   Olv	Longview Dolomite
   Olv	Longview Dolomite
   Oma	Mascot Dolomite
   Oma	Mascot Dolomite
   Omb	Martinsburg Shale, including Reedsville Shale and Unnamed Limestone Unit
   Omic	Middle and Lower Parts of Chickamauga Group, including Mocassin Formation, Bays Formation, Sevier Shale, Ottosee Shale, Holston Formation, Lenoir Limestone and Athens Shale
   Omlc	Middle and Lower parts of Chickamauga Group, including Moccassin Formation, Bays Formation, Sevier Shale, Ottosee Shale, Holston Formation, Lenoir Limestone, and Athens Shale
   On	Newala Formation, including Mascot Dolomite and Kingsport Formation
   On	Newala Formation, including Mascot Dolomite and Kingsport Formation
   Onc	Unnamed (upper part of Knox Group), including Newala Formation, Mascot Dolomite, Kingsport Formation, Longview Dolomite, and Chepultepec Dolomite
   Onc	Jonesboro Limestone, Newala Formation, Mascot Dolomite, Kingsport Formation, Longview Dolomite, and Chepultepec Dolomite
   Onc	Wells Creek Formation and Knox Group (above Copper Ridge Dolomite)
   Oo	Ottosee Shale
   Oo	Ottosee Shale
   Opm	Stones River Group; Pierce Limestone and Murfreesboro Limestone
   Opm	Pierce and Murfreesboro Limestones
   Ord	Stones River Group; Ridley Limestone
   Ord	Ridley Limestone
   Os	Sequatchie Formation
   Os	Sequatchie Formation
   Osv	Sevier Shale
   Osv	Sevier Shale
   Ou	Ordovician [units] including Richmond Group (which includes Mannie Shale, Fernvale Limestone, Sequatchie Formation, and Arnheim Formation), the Maysville Group (which includes Leipers Formation), the Eden Group (which includes Inman Formation), and the Nashville Group (which includes Catheys Formation)
   Ou	Sequatchie Formation, Leipers Formation, Inman Formation and Catheys Formation
   Pcf	Crooked Fork Group
   Pcf	Crooked Fork Group, including Wartburg Sandstone, Glenmary Shale, Coalfield Sandstone, Burnt Mill Shale, Crossville Sandstone, Dorton Shale
   Pcg	Crab Orchard Mounatins and Gizzard Group
   Pcg	Crab Orchard Mountains and Gizzard Groups
   Pcm	Cross Mountain Formation
   Pcm	Cross Mountain Formation
   Pco	Crab Orchard Mountains Group
   Pco	Crab Orchard Mountains Group, including Rockcastle Conglomerate, Vandever Formation, Newton Sandstone, Whitwell Shale, and Sewanee Conglomerate
   Pf	Fentress Formation
   Pg	Gizzard Group including Warren Point Sandstone and Raccoon Mountain Formation
   Pg	Gizzard Group, including Signal Point Shale, Warren Point Sandstone, and Raccoon Mountain Formation
   Pgg	Graves Gap Formation
   Pgg	Graves Gap Formation
   Pib	Indian Bluff Formation
   Pib	Indian Bluff Formation
   Pm	Redoak Mountain Formation
   Pr	Rockcastle Conglomerate
   Prm	Redoak Mountain Formation
   Psl	Slatestone Formation
   Psl	Slatestone Formation
   Pvm	Vowell Mountain Formation
   Pvm	Vowell Mountain Formation
   pCb	Beech Granite
   pCba	Bakersville Gabbro
   pCc	Cranberry Granite
   pCca	Cades Sandstone
   pCg	Great Smoky Group, including Anakeesta Formation, Thunderhead Sandstone, and Elkmont Sandstone
   pCg	Great Smoky Group, includes Unnamed Sandstone Unit, Anakeesta Formation, Thunderhead Sandstone, and Elkmont Sandstone
   pCm	Mount Rogers Group including Bakersville Gabbro, Beech Granite, Cranberry Granite, and Roan Gneiss
   pCo	Ocoee Supergroup, including Walden Creek Group, (including Sandsuck Formation, Wilhite Formation, Shields Formation, Licklog Formation), Cades Sandstone, and Rich Butt Sandstone
   pCr	Roan Gneiss
   pCrb	Rich Butt Sandstone
   pCs	Snowbird Group, including Pigeon Siltstone, Roaring Fork Sandstone, Metcalf Phyllite, Longarm Quartzite, and Wading Branch Formation
   pCss	Walden Creek Group; Sandsuck Formation
   pCss	Sandsuck Formation
   pCw	Walden Creek Group, including Sandsuck Formation, Wilhite Formation, Shields Formation, and Licklog Formation
   pCw	Walden Creek Group, including Sandsuck Formation, Wilhite Formation, Shields Formation, and Licklog Formation
   Qal	Alluvial deposits
   Qal	Alluvial deposits
   Qal	Alluvial deposits
   Ql	Loess
   QT	High-level alluvial deposits
   QT	High-Level Alluvial Deposits
   S	Silurian Formations, including Decatur Limestone, Brownsport Group (Lobelville Formation, Bob Limestone, Beech River Formation), Wayne Group (Dixon Formation, Lego Formation, Waldron Shale, Laurel Limestone, Osgood Formation) and Brassfield Limestone
   S	Silurian Formations, including Decatur Limestone, Brownsport Group (Lobelville Formation, Bob Limestone, Beech River Formation), Wayne Group (Dixon Formation, Lego Formation, Waldron Shale, Laurel Limestone, Osgood Formation) and Brassfield Limestone
   S	Laurel Limestone, Osgood Formation, and Brassfield Formation
   Sc	Clinch Sandstone
   Sr	Rockwood Formation
   Sr	Rockwood Formation
   Src	Rockwood Formation and Clinch Sandstone
   Src	Rockwood Formation and Clinch Sandstone
   Tcw	Claiborne and Wilcox Formation
   Tj	Jackson (?) Formation
   Tm	Midway Group including Porters Creek Clay and Clayton Formation

   sgmc_label

   orig_label + ;n where n= province number (n=0 if no province number)

   type: character width: 16 output width: 16 (Source: Doug Stoeser)

   Value	Definition
   CAc;11	Conasauga Group, including Maynardville Limestone, Nolichucky Shale, the Maryville, Rogersville, and Rutledge Formations, Pumpkin Valley Shale, Rome Formation, and Shady Dolomite
   CAc;13	Berea Sandstone and Bedford Shale, Undivided
   CAc;14	Conasauga Group, includes Maynardville Limestone, Nolichucky Shale, Honaker Dolomite, Maryville Limestone, Rogersville Shale, Rutledge Limestone, Pumpkin Valley Shale, Rome Formation, Shady Dolomite
   CAcc;14	Conococheague Limestone
   CAch;11	Chilhowee Group; Cochran Conglomerate
   CAch;14	Cochran Conglomerate
   CAchi;14	Chilhowee Group, including Erwin Formation, Hesse Sandstone, Murray Shale, Nebo Sandstone, Nichols Shale, Cochran Conglomerate, Hampton Formation, and Unicoi Formation
   CAcl;11	Nolichucky Shale, and Maryville, Rogersville, and Rutledge Formations, and Pumpkin Valley Shale
   CAcl;14	Maynardville Limestone, Nolichucky Shale, Honaker Dolomite, Maryville Limestone, Rogersville Shale, Rutledge Limestone, Pumpkin Valley Shale
   CAcr;10	Copper Ridge Dolomite
   CAcr;14	Copper Ridge Dolomite
   CAcu;14	Maynardville Limestone, Nolichucky Shale, and Honaker Dolomite
   CAe;14	Erwin Formation
   CAh;14	Hampton Formation
   CAhe;11	Chilhowee Group; Hesse Sandstone
   CAhe;14	Hesse Sandstone
   CAhk;14	Honaker Dolomite
   CAm;14	Maryville Limestone
   CAmn;11	Maynardville Limestone
   CAmn;14	Maynardville Limestone
   CAmr;11	Maryville, Rogersville, and Rutledge Formations
   CAmr;14	Maryville Limestone, Rogersville Shale, Rutledge Limestone
   CAmu;11	Chilhowee Group; Murray Shale
   CAmu;14	Murray Shale
   CAn;11	Nolichucky Shale
   CAn;14	Nolichucky Shale
   CAnb;11	Chilhowee Group; Nebo Sandstone
   CAnb;14	Nebo Sandstone
   CAni;11	Nichols Shale
   CAni;14	Nichols Shale
   CApv;14	Pumpkin Valley Shale
   CAr;11	Rome Formation
   CAr;14	Rome Formation
   CArg;14	Rogersville Shale
   CArt;14	Rutledge Limestone
   CAs;11	Shady Dolomite
   CAs;14	Shady Dolomite
   CAu;14	Unicoi Formation
   D;2	Devonian Formations, includes Pegram Formation, Camden Formation, Harriman Formation, Flat Gap Limestone, and Ross Formation
   D;4	Devonian Formations, including Pegram Formation, Camden Formation, Harriman Formation, Flat Gap Limestone, and Ross Formation
   DSs;12	Sneedville Limestone
   ig;11	Intrusive igneous rocks
   ig;15	Intrusive igneous rocks
   Kc;1	Coffee Sand
   Kc;3	Coffee Sand
   Kcc;1	Coon Creek Formation
   Kd;1	Demopolis Formation
   Ke;1	Eutaw Formation
   Ke;3	Eutaw Formation
   Km;1	McNairy Sand
   Ko;1	Owl Creek Formation
   Ks;1	Sardis Formation
   Kt;1	Tuscaloosa Formation
   Kt;3	Tuscaloosa Formation
   Mbh;3	Bangor Limestone and Hartselle Formation
   Mbh;8	Bangor Limestone and Hartselle Formation
   MDc;10	Chattanooga Shale
   MDc;12	Chattanooga Shale
   MDSO;10	Mississippian, Silurian, Devonian, and Ordovician Formations - containing all or portions of the Newman, Fort Payne, Chattanooga, Rockwood, and Sequatchie formations.
   Mfp;10	Fort Payne Formation
   Mfp;12	Fort Payne Formation
   Mfp;2	Fort Payne Formation and Chattanooga Shale
   Mfp;3	Fort Payne Formation and Chattanooga Shale
   Mfp;8	Fort Payne Formation and Chattanooga Shale
   Mg;10	Grainger Formation
   Mg;12	Grainger Formation
   Mgg;10	Greasy Cove Formation, includes Grainger Formation
   Mgg;12	Greasy Cove Formation and Grainger Formation
   Mm;3	Monteagle Limestone
   Mm;8	Monteagle Limestone
   Mn;10	Newman Limestone
   Mn;12	Newman Limestone
   Mp;10	Pennington Formation
   Mp;12	Pennington Formation
   Mp;3	Pennington Formation
   Mp;8	Pennington Formation
   Msg;3	St. Genevieve Limestone
   Msw;2	St. Louis Limestone and Warsaw Limestone
   Msw;3	St. Louis Limestone and Warsaw Limestone
   Msw;8	St. Louis Limestone and Warsaw Limestone
   O;2	Ordovician Formations including Richmond Group (Mannie Shale, Fernvale Limestone), and Nashville Group (Hermitage Formation)
   O;5	Ordovician formations, including Mannie Shale, Fernvale Limestone, Hermitage Formation, and Carters, Lebanon, Ridley, Pierce, and Murfreesboro Limestones
   Oa;10	Athens Shale
   Oa;14	Athens Shale
   Ob;10	Bays Formation
   Ob;14	Bays Formation
   Obh;6	Nashville Group; Bigby-Cannon Limestone and Hermitage Formation
   Obh;8	Bigby-Cannon Limestone and Hermitage Formation
   Obr;7	Ordovician Breccia
   Obr;9	Ordovician Breccia
   Oc;10	Chepultepec Dolomite
   Oc;14	Chepultepec Dolomite
   Oca;6	Stones River Group; Carters Limestone
   Oca;8	Carters Limestone
   OCAk;10	Knox Group, including Newala Formation, Mascot Dolomite, Kingsport Formation, Longview Dolomite, Chepultepec Dolomite, and Copper Ridge Dolomite
   OCAk;13	Knox Group
   OCAk;14	Knox Group, including Jonesboro Limestone, Newala Formation, Mascot Dolomite, Kingsport Formation, Longview Dolomite, Chepultepec Dolomite, Copper Ridge Dolomite, Conococheague Limestone
   OCAk;5	Wells Creek Dolomite and Knox Group
   Och;10	Chickamauga Group, includes Upper part of Chickamauga Group (Reedsville Shale, and Unnamed limestone unit) and Middle and Lower part of Chickamauga Group (Moccasin Formation, Bays Formation, Ottosee Shale, Holston Formation, Lenoir Limestone, Athens Shale, and Sevier Shale)
   Och;13	Chickamauga Group
   Oh;10	Holston Formation
   Oh;14	Holston Formation
   Oj;14	Juniata Formation
   Ojb;14	Jonesboro Limestone
   Ok;10	Kingsport Formation
   Ok;14	Kingsport Formation
   Ol;10	Lenoir Limestone
   Ol;14	Lenoir Limestone
   Olb;6	Stones River Group; Lebanon Limestone
   Olb;8	Lebanon Limestone
   Olc;10	Unnamed (middle part of Knox Group), including Longview Dolomite and Chepultepec Dolomite
   Olc;14	Longview Dolomite and Chepultepec Dolomite
   Olv;10	Longview Dolomite
   Olv;14	Longview Dolomite
   Oma;10	Mascot Dolomite
   Oma;14	Mascot Dolomite
   Omb;14	Martinsburg Shale, including Reedsville Shale and Unnamed Limestone Unit
   Omic;14	Middle and Lower Parts of Chickamauga Group, including Mocassin Formation, Bays Formation, Sevier Shale, Ottosee Shale, Holston Formation, Lenoir Limestone and Athens Shale
   Omlc;10	Middle and Lower parts of Chickamauga Group, including Moccassin Formation, Bays Formation, Sevier Shale, Ottosee Shale, Holston Formation, Lenoir Limestone, and Athens Shale
   On;10	Newala Formation, including Mascot Dolomite and Kingsport Formation
   On;14	Newala Formation, including Mascot Dolomite and Kingsport Formation
   Onc;10	Unnamed (upper part of Knox Group), including Newala Formation, Mascot Dolomite, Kingsport Formation, Longview Dolomite, and Chepultepec Dolomite
   Onc;14	Jonesboro Limestone, Newala Formation, Mascot Dolomite, Kingsport Formation, Longview Dolomite, and Chepultepec Dolomite
   Onc;8	Wells Creek Formation and Knox Group (above Copper Ridge Dolomite)
   Oo;10	Ottosee Shale
   Oo;14	Ottosee Shale
   Opm;6	Stones River Group; Pierce Limestone and Murfreesboro Limestone
   Opm;8	Pierce and Murfreesboro Limestones
   Ord;6	Stones River Group; Ridley Limestone
   Ord;8	Ridley Limestone
   Os;10	Sequatchie Formation
   Os;14	Sequatchie Formation
   Osv;10	Sevier Shale
   Osv;14	Sevier Shale
   Ou;6	Ordovician [units] including Richmond Group (which includes Mannie Shale, Fernvale Limestone, Sequatchie Formation, and Arnheim Formation), the Maysville Group (which includes Leipers Formation), the Eden Group (which includes Inman Formation), and the Nashville Group (which includes Catheys Formation)
   Ou;8	Sequatchie Formation, Leipers Formation, Inman Formation and Catheys Formation
   PAcf;12	Crooked Fork Group
   PAcf;8	Crooked Fork Group, including Wartburg Sandstone, Glenmary Shale, Coalfield Sandstone, Burnt Mill Shale, Crossville Sandstone, Dorton Shale
   PAcg;12	Crab Orchard Mounatins and Gizzard Group
   PAcg;8	Crab Orchard Mountains and Gizzard Groups
   PAcm;12	Cross Mountain Formation
   PAcm;8	Cross Mountain Formation
   PAco;3	Crab Orchard Mountains Group
   PAco;8	Crab Orchard Mountains Group, including Rockcastle Conglomerate, Vandever Formation, Newton Sandstone, Whitwell Shale, and Sewanee Conglomerate
   PAf;8	Fentress Formation
   PAg;3	Gizzard Group including Warren Point Sandstone and Raccoon Mountain Formation
   PAg;8	Gizzard Group, including Signal Point Shale, Warren Point Sandstone, and Raccoon Mountain Formation
   PAgg;12	Graves Gap Formation
   PAgg;8	Graves Gap Formation
   PAib;12	Indian Bluff Formation
   PAib;8	Indian Bluff Formation
   PAm;12	Redoak Mountain Formation
   PAr;8	Rockcastle Conglomerate
   PArm;8	Redoak Mountain Formation
   PAsl;12	Slatestone Formation
   PAsl;8	Slatestone Formation
   PAvm;12	Vowell Mountain Formation
   PAvm;8	Vowell Mountain Formation
   pCAb;15	Beech Granite
   pCAba;15	Bakersville Gabbro
   pCAc;15	Cranberry Granite
   pCAca;15	Cades Sandstone
   pCAg;11	Great Smoky Group, including Anakeesta Formation, Thunderhead Sandstone, and Elkmont Sandstone
   pCAg;15	Great Smoky Group, includes Unnamed Sandstone Unit, Anakeesta Formation, Thunderhead Sandstone, and Elkmont Sandstone
   pCAm;15	Mount Rogers Group including Bakersville Gabbro, Beech Granite, Cranberry Granite, and Roan Gneiss
   pCAo;15	Ocoee Supergroup, including Walden Creek Group, (including Sandsuck Formation, Wilhite Formation, Shields Formation, Licklog Formation), Cades Sandstone, and Rich Butt Sandstone
   pCAr;15	Roan Gneiss
   pCArb;15	Rich Butt Sandstone
   pCAs;15	Snowbird Group, including Pigeon Siltstone, Roaring Fork Sandstone, Metcalf Phyllite, Longarm Quartzite, and Wading Branch Formation
   pCAss;11	Walden Creek Group; Sandsuck Formation
   pCAss;15	Sandsuck Formation
   pCAw;11	Walden Creek Group, including Sandsuck Formation, Wilhite Formation, Shields Formation, and Licklog Formation
   pCAw;15	Walden Creek Group, including Sandsuck Formation, Wilhite Formation, Shields Formation, and Licklog Formation
   Qal;1	Alluvial deposits
   Qal;3	Alluvial deposits
   Qal;8	Alluvial deposits
   Ql;1	Loess
   QT;1	High-level alluvial deposits
   QT;3	High-Level Alluvial Deposits
   S;2	Silurian Formations, including Decatur Limestone, Brownsport Group (Lobelville Formation, Bob Limestone, Beech River Formation), Wayne Group (Dixon Formation, Lego Formation, Waldron Shale, Laurel Limestone, Osgood Formation) and Brassfield Limestone
   S;4	Silurian Formations, including Decatur Limestone, Brownsport Group (Lobelville Formation, Bob Limestone, Beech River Formation), Wayne Group (Dixon Formation, Lego Formation, Waldron Shale, Laurel Limestone, Osgood Formation) and Brassfield Limestone
   S;8	Laurel Limestone, Osgood Formation, and Brassfield Formation
   Sc;12	Clinch Sandstone
   Sr;10	Rockwood Formation
   Sr;12	Rockwood Formation
   Src;10	Rockwood Formation and Clinch Sandstone
   Src;12	Rockwood Formation and Clinch Sandstone
   Tcw;1	Claiborne and Wilcox Formation
   Tj;1	Jackson (?) Formation
   Tm;1	Midway Group including Porters Creek Clay and Clayton Formation

   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 (Source: Doug Stoeser)

   Value	Definition
   TNCAc;11	Conasauga Group, including Maynardville Limestone, Nolichucky Shale, the Maryville, Rogersville, and Rutledge Formations, Pumpkin Valley Shale, Rome Formation, and Shady Dolomite
   TNCAc;13	Berea Sandstone and Bedford Shale, Undivided
   TNCAc;14	Conasauga Group, includes Maynardville Limestone, Nolichucky Shale, Honaker Dolomite, Maryville Limestone, Rogersville Shale, Rutledge Limestone, Pumpkin Valley Shale, Rome Formation, Shady Dolomite
   TNCAcc;14	Conococheague Limestone
   TNCAch;11	Chilhowee Group; Cochran Conglomerate
   TNCAch;14	Cochran Conglomerate
   TNCAchi;14	Chilhowee Group, including Erwin Formation, Hesse Sandstone, Murray Shale, Nebo Sandstone, Nichols Shale, Cochran Conglomerate, Hampton Formation, and Unicoi Formation
   TNCAcl;11	Nolichucky Shale, and Maryville, Rogersville, and Rutledge Formations, and Pumpkin Valley Shale
   TNCAcl;14	Maynardville Limestone, Nolichucky Shale, Honaker Dolomite, Maryville Limestone, Rogersville Shale, Rutledge Limestone, Pumpkin Valley Shale
   TNCAcr;10	Copper Ridge Dolomite
   TNCAcr;14	Copper Ridge Dolomite
   TNCAcu;14	Maynardville Limestone, Nolichucky Shale, and Honaker Dolomite
   TNCAe;14	Erwin Formation
   TNCAh;14	Hampton Formation
   TNCAhe;11	Chilhowee Group; Hesse Sandstone
   TNCAhe;14	Hesse Sandstone
   TNCAhk;14	Honaker Dolomite
   TNCAm;14	Maryville Limestone
   TNCAmn;11	Maynardville Limestone
   TNCAmn;14	Maynardville Limestone
   TNCAmr;11	Maryville, Rogersville, and Rutledge Formations
   TNCAmr;14	Maryville Limestone, Rogersville Shale, Rutledge Limestone
   TNCAmu;11	Chilhowee Group; Murray Shale
   TNCAmu;14	Murray Shale
   TNCAn;11	Nolichucky Shale
   TNCAn;14	Nolichucky Shale
   TNCAnb;11	Chilhowee Group; Nebo Sandstone
   TNCAnb;14	Nebo Sandstone
   TNCAni;11	Nichols Shale
   TNCAni;14	Nichols Shale
   TNCApv;14	Pumpkin Valley Shale
   TNCAr;11	Rome Formation
   TNCAr;14	Rome Formation
   TNCArg;14	Rogersville Shale
   TNCArt;14	Rutledge Limestone
   TNCAs;11	Shady Dolomite
   TNCAs;14	Shady Dolomite
   TNCAu;14	Unicoi Formation
   TND;2	Devonian Formations, includes Pegram Formation, Camden Formation, Harriman Formation, Flat Gap Limestone, and Ross Formation
   TND;4	Devonian Formations, including Pegram Formation, Camden Formation, Harriman Formation, Flat Gap Limestone, and Ross Formation
   TNDSs;12	Sneedville Limestone
   TNig;11	Intrusive igneous rocks
   TNig;15	Intrusive igneous rocks
   TNKc;1	Coffee Sand
   TNKc;3	Coffee Sand
   TNKcc;1	Coon Creek Formation
   TNKd;1	Demopolis Formation
   TNKe;1	Eutaw Formation
   TNKe;3	Eutaw Formation
   TNKm;1	McNairy Sand
   TNKo;1	Owl Creek Formation
   TNKs;1	Sardis Formation
   TNKt;1	Tuscaloosa Formation
   TNKt;3	Tuscaloosa Formation
   TNMbh;3	Bangor Limestone and Hartselle Formation
   TNMbh;8	Bangor Limestone and Hartselle Formation
   TNMDc;10	Chattanooga Shale
   TNMDc;12	Chattanooga Shale
   TNMDSO;10	Mississippian, Silurian, Devonian, and Ordovician Formations - containing all or portions of the Newman, Fort Payne, Chattanooga, Rockwood, and Sequatchie formations.
   TNMfp;10	Fort Payne Formation
   TNMfp;12	Fort Payne Formation
   TNMfp;2	Fort Payne Formation and Chattanooga Shale
   TNMfp;3	Fort Payne Formation and Chattanooga Shale
   TNMfp;8	Fort Payne Formation and Chattanooga Shale
   TNMg;10	Grainger Formation
   TNMg;12	Grainger Formation
   TNMgg;10	Greasy Cove Formation, includes Grainger Formation
   TNMgg;12	Greasy Cove Formation and Grainger Formation
   TNMm;3	Monteagle Limestone
   TNMm;8	Monteagle Limestone
   TNMn;10	Newman Limestone
   TNMn;12	Newman Limestone
   TNMp;10	Pennington Formation
   TNMp;12	Pennington Formation
   TNMp;3	Pennington Formation
   TNMp;8	Pennington Formation
   TNMsg;3	St. Genevieve Limestone
   TNMsw;2	St. Louis Limestone and Warsaw Limestone
   TNMsw;3	St. Louis Limestone and Warsaw Limestone
   TNMsw;8	St. Louis Limestone and Warsaw Limestone
   TNO;2	Ordovician Formations including Richmond Group (Mannie Shale, Fernvale Limestone), and Nashville Group (Hermitage Formation)
   TNO;5	Ordovician formations, including Mannie Shale, Fernvale Limestone, Hermitage Formation, and Carters, Lebanon, Ridley, Pierce, and Murfreesboro Limestones
   TNOa;10	Athens Shale
   TNOa;14	Athens Shale
   TNOb;10	Bays Formation
   TNOb;14	Bays Formation
   TNObh;6	Nashville Group; Bigby-Cannon Limestone and Hermitage Formation
   TNObh;8	Bigby-Cannon Limestone and Hermitage Formation
   TNObr;7	Ordovician Breccia
   TNObr;9	Ordovician Breccia
   TNOc;10	Chepultepec Dolomite
   TNOc;14	Chepultepec Dolomite
   TNOca;6	Stones River Group; Carters Limestone
   TNOca;8	Carters Limestone
   TNOCAk;10	Knox Group, including Newala Formation, Mascot Dolomite, Kingsport Formation, Longview Dolomite, Chepultepec Dolomite, and Copper Ridge Dolomite
   TNOCAk;13	Knox Group
   TNOCAk;14	Knox Group, including Jonesboro Limestone, Newala Formation, Mascot Dolomite, Kingsport Formation, Longview Dolomite, Chepultepec Dolomite, Copper Ridge Dolomite, Conococheague Limestone
   TNOCAk;5	Wells Creek Dolomite and Knox Group
   TNOch;10	Chickamauga Group, includes Upper part of Chickamauga Group (Reedsville Shale, and Unnamed limestone unit) and Middle and Lower part of Chickamauga Group (Moccasin Formation, Bays Formation, Ottosee Shale, Holston Formation, Lenoir Limestone, Athens Shale, and Sevier Shale)
   TNOch;13	Chickamauga Group
   TNOh;10	Holston Formation
   TNOh;14	Holston Formation
   TNOj;14	Juniata Formation
   TNOjb;14	Jonesboro Limestone
   TNOk;10	Kingsport Formation
   TNOk;14	Kingsport Formation
   TNOl;10	Lenoir Limestone
   TNOl;14	Lenoir Limestone
   TNOlb;6	Stones River Group; Lebanon Limestone
   TNOlb;8	Lebanon Limestone
   TNOlc;10	Unnamed (middle part of Knox Group), including Longview Dolomite and Chepultepec Dolomite
   TNOlc;14	Longview Dolomite and Chepultepec Dolomite
   TNOlv;10	Longview Dolomite
   TNOlv;14	Longview Dolomite
   TNOma;10	Mascot Dolomite
   TNOma;14	Mascot Dolomite
   TNOmb;14	Martinsburg Shale, including Reedsville Shale and Unnamed Limestone Unit
   TNOmic;14	Middle and Lower Parts of Chickamauga Group, including Mocassin Formation, Bays Formation, Sevier Shale, Ottosee Shale, Holston Formation, Lenoir Limestone and Athens Shale
   TNOmlc;10	Middle and Lower parts of Chickamauga Group, including Moccassin Formation, Bays Formation, Sevier Shale, Ottosee Shale, Holston Formation, Lenoir Limestone, and Athens Shale
   TNOn;10	Newala Formation, including Mascot Dolomite and Kingsport Formation
   TNOn;14	Newala Formation, including Mascot Dolomite and Kingsport Formation
   TNOnc;10	Unnamed (upper part of Knox Group), including Newala Formation, Mascot Dolomite, Kingsport Formation, Longview Dolomite, and Chepultepec Dolomite
   TNOnc;14	Jonesboro Limestone, Newala Formation, Mascot Dolomite, Kingsport Formation, Longview Dolomite, and Chepultepec Dolomite
   TNOnc;8	Wells Creek Formation and Knox Group (above Copper Ridge Dolomite)
   TNOo;10	Ottosee Shale
   TNOo;14	Ottosee Shale
   TNOpm;6	Stones River Group; Pierce Limestone and Murfreesboro Limestone
   TNOpm;8	Pierce and Murfreesboro Limestones
   TNOrd;6	Stones River Group; Ridley Limestone
   TNOrd;8	Ridley Limestone
   TNOs;10	Sequatchie Formation
   TNOs;14	Sequatchie Formation
   TNOsv;10	Sevier Shale
   TNOsv;14	Sevier Shale
   TNOu;6	Ordovician [units] including Richmond Group (which includes Mannie Shale, Fernvale Limestone, Sequatchie Formation, and Arnheim Formation), the Maysville Group (which includes Leipers Formation), the Eden Group (which includes Inman Formation), and the Nashville Group (which includes Catheys Formation)
   TNOu;8	Sequatchie Formation, Leipers Formation, Inman Formation and Catheys Formation
   TNPAcf;12	Crooked Fork Group
   TNPAcf;8	Crooked Fork Group, including Wartburg Sandstone, Glenmary Shale, Coalfield Sandstone, Burnt Mill Shale, Crossville Sandstone, Dorton Shale
   TNPAcg;12	Crab Orchard Mounatins and Gizzard Group
   TNPAcg;8	Crab Orchard Mountains and Gizzard Groups
   TNPAcm;12	Cross Mountain Formation
   TNPAcm;8	Cross Mountain Formation
   TNPAco;3	Crab Orchard Mountains Group
   TNPAco;8	Crab Orchard Mountains Group, including Rockcastle Conglomerate, Vandever Formation, Newton Sandstone, Whitwell Shale, and Sewanee Conglomerate
   TNPAf;8	Fentress Formation
   TNPAg;3	Gizzard Group including Warren Point Sandstone and Raccoon Mountain Formation
   TNPAg;8	Gizzard Group, including Signal Point Shale, Warren Point Sandstone, and Raccoon Mountain Formation
   TNPAgg;12	Graves Gap Formation
   TNPAgg;8	Graves Gap Formation
   TNPAib;12	Indian Bluff Formation
   TNPAib;8	Indian Bluff Formation
   TNPAm;12	Redoak Mountain Formation
   TNPAr;8	Rockcastle Conglomerate
   TNPArm;8	Redoak Mountain Formation
   TNPAsl;12	Slatestone Formation
   TNPAsl;8	Slatestone Formation
   TNPAvm;12	Vowell Mountain Formation
   TNPAvm;8	Vowell Mountain Formation
   TNpCAb;15	Beech Granite
   TNpCAba;15	Bakersville Gabbro
   TNpCAc;15	Cranberry Granite
   TNpCAca;15	Cades Sandstone
   TNpCAg;11	Great Smoky Group, including Anakeesta Formation, Thunderhead Sandstone, and Elkmont Sandstone
   TNpCAg;15	Great Smoky Group, includes Unnamed Sandstone Unit, Anakeesta Formation, Thunderhead Sandstone, and Elkmont Sandstone
   TNpCAm;15	Mount Rogers Group including Bakersville Gabbro, Beech Granite, Cranberry Granite, and Roan Gneiss
   TNpCAo;15	Ocoee Supergroup, including Walden Creek Group, (including Sandsuck Formation, Wilhite Formation, Shields Formation, Licklog Formation), Cades Sandstone, and Rich Butt Sandstone
   TNpCAr;15	Roan Gneiss
   TNpCArb;15	Rich Butt Sandstone
   TNpCAs;15	Snowbird Group, including Pigeon Siltstone, Roaring Fork Sandstone, Metcalf Phyllite, Longarm Quartzite, and Wading Branch Formation
   TNpCAss;11	Walden Creek Group; Sandsuck Formation
   TNpCAss;15	Sandsuck Formation
   TNpCAw;11	Walden Creek Group, including Sandsuck Formation, Wilhite Formation, Shields Formation, and Licklog Formation
   TNpCAw;15	Walden Creek Group, including Sandsuck Formation, Wilhite Formation, Shields Formation, and Licklog Formation
   TNQal;1	Alluvial deposits
   TNQal;3	Alluvial deposits
   TNQal;8	Alluvial deposits
   TNQl;1	Loess
   TNQT;1	High-level alluvial deposits
   TNQT;3	High-Level Alluvial Deposits
   TNS;2	Silurian Formations, including Decatur Limestone, Brownsport Group (Lobelville Formation, Bob Limestone, Beech River Formation), Wayne Group (Dixon Formation, Lego Formation, Waldron Shale, Laurel Limestone, Osgood Formation) and Brassfield Limestone
   TNS;4	Silurian Formations, including Decatur Limestone, Brownsport Group (Lobelville Formation, Bob Limestone, Beech River Formation), Wayne Group (Dixon Formation, Lego Formation, Waldron Shale, Laurel Limestone, Osgood Formation) and Brassfield Limestone
   TNS;8	Laurel Limestone, Osgood Formation, and Brassfield Formation
   TNSc;12	Clinch Sandstone
   TNSr;10	Rockwood Formation
   TNSr;12	Rockwood Formation
   TNSrc;10	Rockwood Formation and Clinch Sandstone
   TNSrc;12	Rockwood Formation and Clinch Sandstone
   TNTcw;1	Claiborne and Wilcox Formation
   TNTj;1	Jackson (?) Formation
   TNTm;1	Midway Group including Porters Creek Clay and Clayton Formation

   source

   An alphanumeric code (e.g. US001) that designates the source material used.

   type: character width: 6 output width: 8 (Source: Doug Stoeser)

   Value	Definition
   TN001

   unit_age

   The geologic age from the source map used.

   type: character width: 60 output width: 60 (Source: Doug Stoeser)

   Value	Definition
   Cambrian
   Cretaceous
   Devonian
   Devonian to Silurian
   Mississippian
   Mississippian and Devonian
   Mississippian to Devonian
   Mississippian to Ordovician
   Ordovician
   Ordovician to Cambrian
   Paleozoic (?)
   Pennsylvanian
   Precambrian
   Quaternary
   Quaternary-Tertiary
   Silurian
   Tertiary

   rocktype1

   The predominant lithology found in the formation.

   type: character width: 40 output width: 40 (Source: Johnson Lith Class 6.1a)

   Value	Definition
   black shale
   calcarenite
   chert
   clay or mud
   claystone
   conglomerate
   diorite
   dolostone (dolomite)
   gabbro
   gneiss
   granite
   gravel
   graywacke
   limestone
   migmatite
   peridotite
   quartzite
   sand
   sandstone
   shale
   silt
   siltstone
   tectonic breccia

   rocktype2

   The second most predominant lithology in the formation.

   type: character width: 40 output width: 40 (Source: Johnson Lith Class 6.1)

   Value	Definition
   arkose
   chert
   clastic
   clay or mud
   conglomerate
   diorite
   dolostone (dolomite)
   gabbro
   gneiss
   granite
   limestone
   migmatite
   sand
   sandstone
   shale
   silt
   siltstone
   slate

   tn_geol.aat

   Arc attribute table for Tennessee geologic coverage. (Source: ESRI)

   arc-code

   Unique identifier for the line feature

   type: integer width: 3 output width: 3 (Source: AAT data dictionary)

   Value	Definition
   1	contact, location certain
   4	normal fault, location certain
   7	shoreline or riverbank
   10	thrust fault, lcoation certain (teeth on right from origin)
   35	high-angle reverse fault, location certain
   52	concealed fault
   54	concealed high-angle reverse fault
   90	left lateral fault, location certain
   124	state boundary

   arc-para1

   Used for "decorated" lines where additional information is needed.

   type: integer width: 3 output width: 3 (Source: AAT data dictionary)

   Value	Definition
   0	no additional information
   1	upthrown side is on the right

   arc-para2

   "Scratch" field used mostly in Alaska.

   type: integer width: 3 output width: 3 (Source: AAT data dictionary)

   Value	Definition
   0	no additional information

   source

   An alphanumeric code (e.g. US001) that designates the source material used.

   type: character width: 6 output width: 8 (Source: Doug Stoeser)

   Value	Definition
   TN001
   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)

   Entity_and_Attribute_Overview:

   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

   Entity_and_Attribute_Detail_Citation: ESRI
   

Who produced the data set?

1. Who are the originators of the data set? (may include formal authors, digital compilers, and editors)
   • Nicholson, Suzanne W.
   • Dicken, Connie L.
   • Horton, John D.
   • Labay, Keith A.
   • Foose, Michael P.
   • Mueller, Julia A. L.
2. Who also contributed to the data set?

   State Geologic Map Compilation (SGMC) activity of the National Surveys and Analysis projects of the US Geological Survey Mineral Resources Program.

3. To whom should users address questions about the data?
   Suzanne W. Nicholson

   U.S. Geological Survey

   12201 Sunrise Valley Dr. MS954

   Reston, VA
   

   USA

   703-648-6344 (voice)

   swnich@usgs.gov

Why was the data set created?

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.

How was the data set created?

1. From what previous works were the data drawn?

   state boundaries (source 1 of 2)

   Johnson, Bruce R., 1:100,000 Scale State Boundaries of the Conterminous United States.

   Other_Citation_Details:

   Arc/INFO coverage developed by Bruce Johnson. Derived from USGS 100,000-scale DLG boundary layer quadrangles.

   Type_of_Source_Media: online
   Source_Scale_Denominator: 100000
   Source_Contribution: provided linework of the conterminous state boundaries
   

   lithclass (source 2 of 2)

   Johnson, Bruce R., Geologic Map Unit Classification, ver. 6.1.

   Other_Citation_Details:

   Document has been modified and is included in Appedices of the publication.

   Type_of_Source_Media: digital data
   Source_Scale_Denominator: none
   Source_Contribution:

   Source of lithologic codes and specific rock names found in ROCKTYPE1 and ROCKTYPE2.

2. How were the data generated, processed, and modified?

   Date: 2003 (process 1 of 10)

   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.

   Date: 2004 (process 2 of 10)

   Date: 2004 (process 3 of 10)

   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.

   Date: 2004 (process 4 of 10)

   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

   Date: 2004 (process 5 of 10)

   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.

   Date: 2004 (process 6 of 10)

   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

   Date: 2004 (process 7 of 10)

   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.

   Date: 2004 (process 8 of 10)

   Once the .aat and the .pat were populated with the correct attributes, the coverage was exported as an .e00 file (OH_geol_lcc.e00).

   Then it was unprojected into geographic coordinates and exported again (OH_geol_dd.e00).

   Date: 2005 (process 9 of 10)

   Faults were extracted from the coverage and created a separate fault coverage (OH_faults_lcc) and then exported (OH_faults_lcc.e00).

   Date: 2005 (process 10 of 10)

   Finally, the geology lines and geology polygons were converted into shapefiles; in both geographic coordinates and in Lambert Conformal Conic projection.

3. What similar or related data should the user be aware of?

How reliable are the data; what problems remain in the data set?

1. How well have the observations been checked?
   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
2. How accurate are the geographic locations?
   Accuracy of Tennessee 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.
3. How accurate are the heights or depths?
   
4. Where are the gaps in the data? What is missing?
   Bodies of water are classified as water, and the geologic units underlying them are not included in this coverage.
5. How consistent are the relationships among the observations, including topology?
   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.

How can someone get a copy of the data set?

Are there legal restrictions on access or use of the data?

Access_Constraints: none
Use_Constraints:

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.

1. Who distributes the data set? (Distributor 1 of 1)
   
   U.S. Geological Survey Information Services Reston-ESIC

   U.S. Geological Survey

   507 National Center

   Reston, Virginia
   

   USA

   1-888-ASK-USGS or 1-703-648-5953 (voice)

   http://www.usgs.gov/contact/
2. What's the catalog number I need to order this data set?
3. What legal disclaimers am I supposed to read?

   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.

4. How can I download or order the data?
   • Availability in digital form:

     Data format:	Geologic units and structural features in format ARC/INFO export (version 9.0)
     Network links:	http://pubs.usgs.gov/of/2005/1324/

   • Cost to order the data: none

Who wrote the metadata?

Dates:

Last modified: 08-Jul-2005

Metadata author:

U.S. Geological Survey

Attn: Connie L. Dicken

12201 Sunrise Valley Dr. MS954

Reston, VA

USA

703-648-6482 (voice)

cdicken@usgs.gov

Metadata standard:

Content Standard for Digital Geospatial Metadata (FGDC-STD-001-1998)