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

Metadata also available as - [Outline] - [Parseable text] - [XML]

Frequently anticipated questions:


What does this data set describe?

Title:
Preliminary integrated Geologic Map Databases for the United States: Kentucky, Ohio, Tennessee, and West Virginia
Abstract:
This 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.
Supplemental_Information:
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).
  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:

  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)
    ValueDefinition
    CcConasauga Group, including Maynardville Limestone, Nolichucky Shale, the Maryville, Rogersville, and Rutledge Formations, Pumpkin Valley Shale, Rome Formation, and Shady Dolomite
    CcBerea Sandstone and Bedford Shale, Undivided
    CcConasauga Group, includes Maynardville Limestone, Nolichucky Shale, Honaker Dolomite, Maryville Limestone, Rogersville Shale, Rutledge Limestone, Pumpkin Valley Shale, Rome Formation, Shady Dolomite
    CccConococheague Limestone
    CchChilhowee Group; Cochran Conglomerate
    CchCochran Conglomerate
    CchiChilhowee Group, including Erwin Formation, Hesse Sandstone, Murray Shale, Nebo Sandstone, Nichols Shale, Cochran Conglomerate, Hampton Formation, and Unicoi Formation
    CclNolichucky Shale, and Maryville, Rogersville, and Rutledge Formations, and Pumpkin Valley Shale
    CclMaynardville Limestone, Nolichucky Shale, Honaker Dolomite, Maryville Limestone, Rogersville Shale, Rutledge Limestone, Pumpkin Valley Shale
    CcrCopper Ridge Dolomite
    CcrCopper Ridge Dolomite
    CcuMaynardville Limestone, Nolichucky Shale, and Honaker Dolomite
    CeErwin Formation
    ChHampton Formation
    CheChilhowee Group; Hesse Sandstone
    CheHesse Sandstone
    ChkHonaker Dolomite
    CmMaryville Limestone
    CmnMaynardville Limestone
    CmnMaynardville Limestone
    CmrMaryville, Rogersville, and Rutledge Formations
    CmrMaryville Limestone, Rogersville Shale, Rutledge Limestone
    CmuChilhowee Group; Murray Shale
    CmuMurray Shale
    CnNolichucky Shale
    CnNolichucky Shale
    CnbChilhowee Group; Nebo Sandstone
    CnbNebo Sandstone
    CniNichols Shale
    CniNichols Shale
    CpvPumpkin Valley Shale
    CrRome Formation
    CrRome Formation
    CrgRogersville Shale
    CrtRutledge Limestone
    CsShady Dolomite
    CsShady Dolomite
    CuUnicoi Formation
    DDevonian Formations, includes Pegram Formation, Camden Formation, Harriman Formation, Flat Gap Limestone, and Ross Formation
    DDevonian Formations, including Pegram Formation, Camden Formation, Harriman Formation, Flat Gap Limestone, and Ross Formation
    DSsSneedville Limestone
    igIntrusive igneous rocks
    igIntrusive igneous rocks
    KcCoffee Sand
    KccCoon Creek Formation
    KdDemopolis Formation
    KeEutaw Formation
    KeEutaw Formation
    KmMcNairy Sand
    KoOwl Creek Formation
    KsSardis Formation
    KtTuscaloosa Formation
    KtTuscaloosa Formation
    MbhBangor Limestone and Hartselle Formation
    MbhBangor Limestone and Hartselle Formation
    MDcChattanooga Shale
    MDcChattanooga Shale
    MDSOMississippian, Silurian, Devonian, and Ordovician Formations - containing all or portions of the Newman, Fort Payne, Chattanooga, Rockwood, and Sequatchie formations.
    MfpFort Payne Formation
    MfpFort Payne Formation
    MfpFort Payne Formation and Chattanooga Shale
    MfpFort Payne Formation and Chattanooga Shale
    MfpFort Payne Formation and Chattanooga Shale
    MgGrainger Formation
    MgGrainger Formation
    MggGreasy Cove Formation, includes Grainger Formation
    MggGreasy Cove Formation and Grainger Formation
    MmMonteagle Limestone
    MmMonteagle Limestone
    MnNewman Limestone
    MnNewman Limestone
    MpPennington Formation
    MpPennington Formation
    MpPennington Formation
    MpPennington Formation
    MsgSt. Genevieve Limestone
    MswSt. Louis Limestone and Warsaw Limestone
    MswSt. Louis Limestone and Warsaw Limestone
    MswSt. Louis Limestone and Warsaw Limestone
    OOrdovician Formations including Richmond Group (Mannie Shale, Fernvale Limestone), and Nashville Group (Hermitage Formation)
    OOrdovician formations, including Mannie Shale, Fernvale Limestone, Hermitage Formation, and Carters, Lebanon, Ridley, Pierce, and Murfreesboro Limestones
    OaAthens Shale
    OaAthens Shale
    ObBays Formation
    ObBays Formation
    ObhNashville Group; Bigby-Cannon Limestone and Hermitage Formation
    ObhBigby-Cannon Limestone and Hermitage Formation
    ObrOrdovician Breccia
    ObrOrdovician Breccia
    OcChepultepec Dolomite
    OcChepultepec Dolomite
    OcaStones River Group; Carters Limestone
    OcaCarters Limestone
    OCkKnox Group, including Newala Formation, Mascot Dolomite, Kingsport Formation, Longview Dolomite, Chepultepec Dolomite, and Copper Ridge Dolomite
    OCkKnox Group
    OCkKnox Group, including Jonesboro Limestone, Newala Formation, Mascot Dolomite, Kingsport Formation, Longview Dolomite, Chepultepec Dolomite, Copper Ridge Dolomite, Conococheague Limestone
    OCkWells Creek Dolomite and Knox Group
    OchChickamauga 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)
    OchChickamauga Group
    OhHolston Formation
    OhHolston Formation
    OjJuniata Formation
    OjbJonesboro Limestone
    OkKingsport Formation
    OkKingsport Formation
    OlLenoir Limestone
    OlLenoir Limestone
    OlbStones River Group; Lebanon Limestone
    OlbLebanon Limestone
    OlcLongview Dolomite and Chepultepec Dolomite
    OlvLongview Dolomite
    OlvLongview Dolomite
    OmaMascot Dolomite
    OmaMascot Dolomite
    OmbMartinsburg Shale, including Reedsville Shale and Unnamed Limestone Unit
    OmicMiddle and Lower Parts of Chickamauga Group, including Mocassin Formation, Bays Formation, Sevier Shale, Ottosee Shale, Holston Formation, Lenoir Limestone and Athens Shale
    OmlcMiddle and Lower parts of Chickamauga Group, including Moccassin Formation, Bays Formation, Sevier Shale, Ottosee Shale, Holston Formation, Lenoir Limestone, and Athens Shale
    OnNewala Formation, including Mascot Dolomite and Kingsport Formation
    OnNewala Formation, including Mascot Dolomite and Kingsport Formation
    OncUnnamed (upper part of Knox Group), including Newala Formation, Mascot Dolomite, Kingsport Formation, Longview Dolomite, and Chepultepec Dolomite
    OncJonesboro Limestone, Newala Formation, Mascot Dolomite, Kingsport Formation, Longview Dolomite, and Chepultepec Dolomite
    OncWells Creek Formation and Knox Group (above Copper Ridge Dolomite)
    OoOttosee Shale
    OoOttosee Shale
    OpmStones River Group; Pierce Limestone and Murfreesboro Limestone
    OpmPierce and Murfreesboro Limestones
    OrdStones River Group; Ridley Limestone
    OrdRidley Limestone
    OsSequatchie Formation
    OsSequatchie Formation
    OsvSevier Shale
    OsvSevier Shale
    OuOrdovician [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)
    OuSequatchie Formation, Leipers Formation, Inman Formation and Catheys Formation
    PcfCrooked Fork Group
    PcfCrooked Fork Group, including Wartburg Sandstone, Glenmary Shale, Coalfield Sandstone, Burnt Mill Shale, Crossville Sandstone, Dorton Shale
    PcgCrab Orchard Mounatins and Gizzard Group
    PcgCrab Orchard Mountains and Gizzard Groups
    PcmCross Mountain Formation
    PcmCross Mountain Formation
    PcoCrab Orchard Mountains Group
    PcoCrab Orchard Mountains Group, including Rockcastle Conglomerate, Vandever Formation, Newton Sandstone, Whitwell Shale, and Sewanee Conglomerate
    PfFentress Formation
    PgGizzard Group including Warren Point Sandstone and Raccoon Mountain Formation
    PgGizzard Group, including Signal Point Shale, Warren Point Sandstone, and Raccoon Mountain Formation
    PggGraves Gap Formation
    PggGraves Gap Formation
    PibIndian Bluff Formation
    PibIndian Bluff Formation
    PmRedoak Mountain Formation
    PrRockcastle Conglomerate
    PrmRedoak Mountain Formation
    PslSlatestone Formation
    PslSlatestone Formation
    PvmVowell Mountain Formation
    PvmVowell Mountain Formation
    pCbBeech Granite
    pCbaBakersville Gabbro
    pCcCranberry Granite
    pCcaCades Sandstone
    pCgGreat Smoky Group, including Anakeesta Formation, Thunderhead Sandstone, and Elkmont Sandstone
    pCgGreat Smoky Group, includes Unnamed Sandstone Unit, Anakeesta Formation, Thunderhead Sandstone, and Elkmont Sandstone
    pCmMount Rogers Group including Bakersville Gabbro, Beech Granite, Cranberry Granite, and Roan Gneiss
    pCoOcoee Supergroup, including Walden Creek Group, (including Sandsuck Formation, Wilhite Formation, Shields Formation, Licklog Formation), Cades Sandstone, and Rich Butt Sandstone
    pCrRoan Gneiss
    pCrbRich Butt Sandstone
    pCsSnowbird Group, including Pigeon Siltstone, Roaring Fork Sandstone, Metcalf Phyllite, Longarm Quartzite, and Wading Branch Formation
    pCssWalden Creek Group; Sandsuck Formation
    pCssSandsuck Formation
    pCwWalden Creek Group, including Sandsuck Formation, Wilhite Formation, Shields Formation, and Licklog Formation
    pCwWalden Creek Group, including Sandsuck Formation, Wilhite Formation, Shields Formation, and Licklog Formation
    QalAlluvial deposits
    QalAlluvial deposits
    QalAlluvial deposits
    QlLoess
    QTHigh-level alluvial deposits
    QTHigh-Level Alluvial Deposits
    SSilurian 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
    SSilurian 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
    SLaurel Limestone, Osgood Formation, and Brassfield Formation
    ScClinch Sandstone
    SrRockwood Formation
    SrRockwood Formation
    SrcRockwood Formation and Clinch Sandstone
    SrcRockwood Formation and Clinch Sandstone
    TcwClaiborne and Wilcox Formation
    TjJackson (?) Formation
    TmMidway 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)
    ValueDefinition
    CAc;11Conasauga Group, including Maynardville Limestone, Nolichucky Shale, the Maryville, Rogersville, and Rutledge Formations, Pumpkin Valley Shale, Rome Formation, and Shady Dolomite
    CAc;13Berea Sandstone and Bedford Shale, Undivided
    CAc;14Conasauga Group, includes Maynardville Limestone, Nolichucky Shale, Honaker Dolomite, Maryville Limestone, Rogersville Shale, Rutledge Limestone, Pumpkin Valley Shale, Rome Formation, Shady Dolomite
    CAcc;14Conococheague Limestone
    CAch;11Chilhowee Group; Cochran Conglomerate
    CAch;14Cochran Conglomerate
    CAchi;14Chilhowee Group, including Erwin Formation, Hesse Sandstone, Murray Shale, Nebo Sandstone, Nichols Shale, Cochran Conglomerate, Hampton Formation, and Unicoi Formation
    CAcl;11Nolichucky Shale, and Maryville, Rogersville, and Rutledge Formations, and Pumpkin Valley Shale
    CAcl;14Maynardville Limestone, Nolichucky Shale, Honaker Dolomite, Maryville Limestone, Rogersville Shale, Rutledge Limestone, Pumpkin Valley Shale
    CAcr;10Copper Ridge Dolomite
    CAcr;14Copper Ridge Dolomite
    CAcu;14Maynardville Limestone, Nolichucky Shale, and Honaker Dolomite
    CAe;14Erwin Formation
    CAh;14Hampton Formation
    CAhe;11Chilhowee Group; Hesse Sandstone
    CAhe;14Hesse Sandstone
    CAhk;14Honaker Dolomite
    CAm;14Maryville Limestone
    CAmn;11Maynardville Limestone
    CAmn;14Maynardville Limestone
    CAmr;11Maryville, Rogersville, and Rutledge Formations
    CAmr;14Maryville Limestone, Rogersville Shale, Rutledge Limestone
    CAmu;11Chilhowee Group; Murray Shale
    CAmu;14Murray Shale
    CAn;11Nolichucky Shale
    CAn;14Nolichucky Shale
    CAnb;11Chilhowee Group; Nebo Sandstone
    CAnb;14Nebo Sandstone
    CAni;11Nichols Shale
    CAni;14Nichols Shale
    CApv;14Pumpkin Valley Shale
    CAr;11Rome Formation
    CAr;14Rome Formation
    CArg;14Rogersville Shale
    CArt;14Rutledge Limestone
    CAs;11Shady Dolomite
    CAs;14Shady Dolomite
    CAu;14Unicoi Formation
    D;2Devonian Formations, includes Pegram Formation, Camden Formation, Harriman Formation, Flat Gap Limestone, and Ross Formation
    D;4Devonian Formations, including Pegram Formation, Camden Formation, Harriman Formation, Flat Gap Limestone, and Ross Formation
    DSs;12Sneedville Limestone
    ig;11Intrusive igneous rocks
    ig;15Intrusive igneous rocks
    Kc;1Coffee Sand
    Kc;3Coffee Sand
    Kcc;1Coon Creek Formation
    Kd;1Demopolis Formation
    Ke;1Eutaw Formation
    Ke;3Eutaw Formation
    Km;1McNairy Sand
    Ko;1Owl Creek Formation
    Ks;1Sardis Formation
    Kt;1Tuscaloosa Formation
    Kt;3Tuscaloosa Formation
    Mbh;3Bangor Limestone and Hartselle Formation
    Mbh;8Bangor Limestone and Hartselle Formation
    MDc;10Chattanooga Shale
    MDc;12Chattanooga Shale
    MDSO;10Mississippian, Silurian, Devonian, and Ordovician Formations - containing all or portions of the Newman, Fort Payne, Chattanooga, Rockwood, and Sequatchie formations.
    Mfp;10Fort Payne Formation
    Mfp;12Fort Payne Formation
    Mfp;2Fort Payne Formation and Chattanooga Shale
    Mfp;3Fort Payne Formation and Chattanooga Shale
    Mfp;8Fort Payne Formation and Chattanooga Shale
    Mg;10Grainger Formation
    Mg;12Grainger Formation
    Mgg;10Greasy Cove Formation, includes Grainger Formation
    Mgg;12Greasy Cove Formation and Grainger Formation
    Mm;3Monteagle Limestone
    Mm;8Monteagle Limestone
    Mn;10Newman Limestone
    Mn;12Newman Limestone
    Mp;10Pennington Formation
    Mp;12Pennington Formation
    Mp;3Pennington Formation
    Mp;8Pennington Formation
    Msg;3St. Genevieve Limestone
    Msw;2St. Louis Limestone and Warsaw Limestone
    Msw;3St. Louis Limestone and Warsaw Limestone
    Msw;8St. Louis Limestone and Warsaw Limestone
    O;2Ordovician Formations including Richmond Group (Mannie Shale, Fernvale Limestone), and Nashville Group (Hermitage Formation)
    O;5Ordovician formations, including Mannie Shale, Fernvale Limestone, Hermitage Formation, and Carters, Lebanon, Ridley, Pierce, and Murfreesboro Limestones
    Oa;10Athens Shale
    Oa;14Athens Shale
    Ob;10Bays Formation
    Ob;14Bays Formation
    Obh;6Nashville Group; Bigby-Cannon Limestone and Hermitage Formation
    Obh;8Bigby-Cannon Limestone and Hermitage Formation
    Obr;7Ordovician Breccia
    Obr;9Ordovician Breccia
    Oc;10Chepultepec Dolomite
    Oc;14Chepultepec Dolomite
    Oca;6Stones River Group; Carters Limestone
    Oca;8Carters Limestone
    OCAk;10Knox Group, including Newala Formation, Mascot Dolomite, Kingsport Formation, Longview Dolomite, Chepultepec Dolomite, and Copper Ridge Dolomite
    OCAk;13Knox Group
    OCAk;14Knox Group, including Jonesboro Limestone, Newala Formation, Mascot Dolomite, Kingsport Formation, Longview Dolomite, Chepultepec Dolomite, Copper Ridge Dolomite, Conococheague Limestone
    OCAk;5Wells Creek Dolomite and Knox Group
    Och;10Chickamauga 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;13Chickamauga Group
    Oh;10Holston Formation
    Oh;14Holston Formation
    Oj;14Juniata Formation
    Ojb;14Jonesboro Limestone
    Ok;10Kingsport Formation
    Ok;14Kingsport Formation
    Ol;10Lenoir Limestone
    Ol;14Lenoir Limestone
    Olb;6Stones River Group; Lebanon Limestone
    Olb;8Lebanon Limestone
    Olc;10Unnamed (middle part of Knox Group), including Longview Dolomite and Chepultepec Dolomite
    Olc;14Longview Dolomite and Chepultepec Dolomite
    Olv;10Longview Dolomite
    Olv;14Longview Dolomite
    Oma;10Mascot Dolomite
    Oma;14Mascot Dolomite
    Omb;14Martinsburg Shale, including Reedsville Shale and Unnamed Limestone Unit
    Omic;14Middle and Lower Parts of Chickamauga Group, including Mocassin Formation, Bays Formation, Sevier Shale, Ottosee Shale, Holston Formation, Lenoir Limestone and Athens Shale
    Omlc;10Middle and Lower parts of Chickamauga Group, including Moccassin Formation, Bays Formation, Sevier Shale, Ottosee Shale, Holston Formation, Lenoir Limestone, and Athens Shale
    On;10Newala Formation, including Mascot Dolomite and Kingsport Formation
    On;14Newala Formation, including Mascot Dolomite and Kingsport Formation
    Onc;10Unnamed (upper part of Knox Group), including Newala Formation, Mascot Dolomite, Kingsport Formation, Longview Dolomite, and Chepultepec Dolomite
    Onc;14Jonesboro Limestone, Newala Formation, Mascot Dolomite, Kingsport Formation, Longview Dolomite, and Chepultepec Dolomite
    Onc;8Wells Creek Formation and Knox Group (above Copper Ridge Dolomite)
    Oo;10Ottosee Shale
    Oo;14Ottosee Shale
    Opm;6Stones River Group; Pierce Limestone and Murfreesboro Limestone
    Opm;8Pierce and Murfreesboro Limestones
    Ord;6Stones River Group; Ridley Limestone
    Ord;8Ridley Limestone
    Os;10Sequatchie Formation
    Os;14Sequatchie Formation
    Osv;10Sevier Shale
    Osv;14Sevier Shale
    Ou;6Ordovician [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;8Sequatchie Formation, Leipers Formation, Inman Formation and Catheys Formation
    PAcf;12Crooked Fork Group
    PAcf;8Crooked Fork Group, including Wartburg Sandstone, Glenmary Shale, Coalfield Sandstone, Burnt Mill Shale, Crossville Sandstone, Dorton Shale
    PAcg;12Crab Orchard Mounatins and Gizzard Group
    PAcg;8Crab Orchard Mountains and Gizzard Groups
    PAcm;12Cross Mountain Formation
    PAcm;8Cross Mountain Formation
    PAco;3Crab Orchard Mountains Group
    PAco;8Crab Orchard Mountains Group, including Rockcastle Conglomerate, Vandever Formation, Newton Sandstone, Whitwell Shale, and Sewanee Conglomerate
    PAf;8Fentress Formation
    PAg;3Gizzard Group including Warren Point Sandstone and Raccoon Mountain Formation
    PAg;8Gizzard Group, including Signal Point Shale, Warren Point Sandstone, and Raccoon Mountain Formation
    PAgg;12Graves Gap Formation
    PAgg;8Graves Gap Formation
    PAib;12Indian Bluff Formation
    PAib;8Indian Bluff Formation
    PAm;12Redoak Mountain Formation
    PAr;8Rockcastle Conglomerate
    PArm;8Redoak Mountain Formation
    PAsl;12Slatestone Formation
    PAsl;8Slatestone Formation
    PAvm;12Vowell Mountain Formation
    PAvm;8Vowell Mountain Formation
    pCAb;15Beech Granite
    pCAba;15Bakersville Gabbro
    pCAc;15Cranberry Granite
    pCAca;15Cades Sandstone
    pCAg;11Great Smoky Group, including Anakeesta Formation, Thunderhead Sandstone, and Elkmont Sandstone
    pCAg;15Great Smoky Group, includes Unnamed Sandstone Unit, Anakeesta Formation, Thunderhead Sandstone, and Elkmont Sandstone
    pCAm;15Mount Rogers Group including Bakersville Gabbro, Beech Granite, Cranberry Granite, and Roan Gneiss
    pCAo;15Ocoee Supergroup, including Walden Creek Group, (including Sandsuck Formation, Wilhite Formation, Shields Formation, Licklog Formation), Cades Sandstone, and Rich Butt Sandstone
    pCAr;15Roan Gneiss
    pCArb;15Rich Butt Sandstone
    pCAs;15Snowbird Group, including Pigeon Siltstone, Roaring Fork Sandstone, Metcalf Phyllite, Longarm Quartzite, and Wading Branch Formation
    pCAss;11Walden Creek Group; Sandsuck Formation
    pCAss;15Sandsuck Formation
    pCAw;11Walden Creek Group, including Sandsuck Formation, Wilhite Formation, Shields Formation, and Licklog Formation
    pCAw;15Walden Creek Group, including Sandsuck Formation, Wilhite Formation, Shields Formation, and Licklog Formation
    Qal;1Alluvial deposits
    Qal;3Alluvial deposits
    Qal;8Alluvial deposits
    Ql;1Loess
    QT;1High-level alluvial deposits
    QT;3High-Level Alluvial Deposits
    S;2Silurian 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;4Silurian 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;8Laurel Limestone, Osgood Formation, and Brassfield Formation
    Sc;12Clinch Sandstone
    Sr;10Rockwood Formation
    Sr;12Rockwood Formation
    Src;10Rockwood Formation and Clinch Sandstone
    Src;12Rockwood Formation and Clinch Sandstone
    Tcw;1Claiborne and Wilcox Formation
    Tj;1Jackson (?) Formation
    Tm;1Midway 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)
    ValueDefinition
    TNCAc;11Conasauga Group, including Maynardville Limestone, Nolichucky Shale, the Maryville, Rogersville, and Rutledge Formations, Pumpkin Valley Shale, Rome Formation, and Shady Dolomite
    TNCAc;13Berea Sandstone and Bedford Shale, Undivided
    TNCAc;14Conasauga Group, includes Maynardville Limestone, Nolichucky Shale, Honaker Dolomite, Maryville Limestone, Rogersville Shale, Rutledge Limestone, Pumpkin Valley Shale, Rome Formation, Shady Dolomite
    TNCAcc;14Conococheague Limestone
    TNCAch;11Chilhowee Group; Cochran Conglomerate
    TNCAch;14Cochran Conglomerate
    TNCAchi;14Chilhowee Group, including Erwin Formation, Hesse Sandstone, Murray Shale, Nebo Sandstone, Nichols Shale, Cochran Conglomerate, Hampton Formation, and Unicoi Formation
    TNCAcl;11Nolichucky Shale, and Maryville, Rogersville, and Rutledge Formations, and Pumpkin Valley Shale
    TNCAcl;14Maynardville Limestone, Nolichucky Shale, Honaker Dolomite, Maryville Limestone, Rogersville Shale, Rutledge Limestone, Pumpkin Valley Shale
    TNCAcr;10Copper Ridge Dolomite
    TNCAcr;14Copper Ridge Dolomite
    TNCAcu;14Maynardville Limestone, Nolichucky Shale, and Honaker Dolomite
    TNCAe;14Erwin Formation
    TNCAh;14Hampton Formation
    TNCAhe;11Chilhowee Group; Hesse Sandstone
    TNCAhe;14Hesse Sandstone
    TNCAhk;14Honaker Dolomite
    TNCAm;14Maryville Limestone
    TNCAmn;11Maynardville Limestone
    TNCAmn;14Maynardville Limestone
    TNCAmr;11Maryville, Rogersville, and Rutledge Formations
    TNCAmr;14Maryville Limestone, Rogersville Shale, Rutledge Limestone
    TNCAmu;11Chilhowee Group; Murray Shale
    TNCAmu;14Murray Shale
    TNCAn;11Nolichucky Shale
    TNCAn;14Nolichucky Shale
    TNCAnb;11Chilhowee Group; Nebo Sandstone
    TNCAnb;14Nebo Sandstone
    TNCAni;11Nichols Shale
    TNCAni;14Nichols Shale
    TNCApv;14Pumpkin Valley Shale
    TNCAr;11Rome Formation
    TNCAr;14Rome Formation
    TNCArg;14Rogersville Shale
    TNCArt;14Rutledge Limestone
    TNCAs;11Shady Dolomite
    TNCAs;14Shady Dolomite
    TNCAu;14Unicoi Formation
    TND;2Devonian Formations, includes Pegram Formation, Camden Formation, Harriman Formation, Flat Gap Limestone, and Ross Formation
    TND;4Devonian Formations, including Pegram Formation, Camden Formation, Harriman Formation, Flat Gap Limestone, and Ross Formation
    TNDSs;12Sneedville Limestone
    TNig;11Intrusive igneous rocks
    TNig;15Intrusive igneous rocks
    TNKc;1Coffee Sand
    TNKc;3Coffee Sand
    TNKcc;1Coon Creek Formation
    TNKd;1Demopolis Formation
    TNKe;1Eutaw Formation
    TNKe;3Eutaw Formation
    TNKm;1McNairy Sand
    TNKo;1Owl Creek Formation
    TNKs;1Sardis Formation
    TNKt;1Tuscaloosa Formation
    TNKt;3Tuscaloosa Formation
    TNMbh;3Bangor Limestone and Hartselle Formation
    TNMbh;8Bangor Limestone and Hartselle Formation
    TNMDc;10Chattanooga Shale
    TNMDc;12Chattanooga Shale
    TNMDSO;10Mississippian, Silurian, Devonian, and Ordovician Formations - containing all or portions of the Newman, Fort Payne, Chattanooga, Rockwood, and Sequatchie formations.
    TNMfp;10Fort Payne Formation
    TNMfp;12Fort Payne Formation
    TNMfp;2Fort Payne Formation and Chattanooga Shale
    TNMfp;3Fort Payne Formation and Chattanooga Shale
    TNMfp;8Fort Payne Formation and Chattanooga Shale
    TNMg;10Grainger Formation
    TNMg;12Grainger Formation
    TNMgg;10Greasy Cove Formation, includes Grainger Formation
    TNMgg;12Greasy Cove Formation and Grainger Formation
    TNMm;3Monteagle Limestone
    TNMm;8Monteagle Limestone
    TNMn;10Newman Limestone
    TNMn;12Newman Limestone
    TNMp;10Pennington Formation
    TNMp;12Pennington Formation
    TNMp;3Pennington Formation
    TNMp;8Pennington Formation
    TNMsg;3St. Genevieve Limestone
    TNMsw;2St. Louis Limestone and Warsaw Limestone
    TNMsw;3St. Louis Limestone and Warsaw Limestone
    TNMsw;8St. Louis Limestone and Warsaw Limestone
    TNO;2Ordovician Formations including Richmond Group (Mannie Shale, Fernvale Limestone), and Nashville Group (Hermitage Formation)
    TNO;5Ordovician formations, including Mannie Shale, Fernvale Limestone, Hermitage Formation, and Carters, Lebanon, Ridley, Pierce, and Murfreesboro Limestones
    TNOa;10Athens Shale
    TNOa;14Athens Shale
    TNOb;10Bays Formation
    TNOb;14Bays Formation
    TNObh;6Nashville Group; Bigby-Cannon Limestone and Hermitage Formation
    TNObh;8Bigby-Cannon Limestone and Hermitage Formation
    TNObr;7Ordovician Breccia
    TNObr;9Ordovician Breccia
    TNOc;10Chepultepec Dolomite
    TNOc;14Chepultepec Dolomite
    TNOca;6Stones River Group; Carters Limestone
    TNOca;8Carters Limestone
    TNOCAk;10Knox Group, including Newala Formation, Mascot Dolomite, Kingsport Formation, Longview Dolomite, Chepultepec Dolomite, and Copper Ridge Dolomite
    TNOCAk;13Knox Group
    TNOCAk;14Knox Group, including Jonesboro Limestone, Newala Formation, Mascot Dolomite, Kingsport Formation, Longview Dolomite, Chepultepec Dolomite, Copper Ridge Dolomite, Conococheague Limestone
    TNOCAk;5Wells Creek Dolomite and Knox Group
    TNOch;10Chickamauga 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;13Chickamauga Group
    TNOh;10Holston Formation
    TNOh;14Holston Formation
    TNOj;14Juniata Formation
    TNOjb;14Jonesboro Limestone
    TNOk;10Kingsport Formation
    TNOk;14Kingsport Formation
    TNOl;10Lenoir Limestone
    TNOl;14Lenoir Limestone
    TNOlb;6Stones River Group; Lebanon Limestone
    TNOlb;8Lebanon Limestone
    TNOlc;10Unnamed (middle part of Knox Group), including Longview Dolomite and Chepultepec Dolomite
    TNOlc;14Longview Dolomite and Chepultepec Dolomite
    TNOlv;10Longview Dolomite
    TNOlv;14Longview Dolomite
    TNOma;10Mascot Dolomite
    TNOma;14Mascot Dolomite
    TNOmb;14Martinsburg Shale, including Reedsville Shale and Unnamed Limestone Unit
    TNOmic;14Middle and Lower Parts of Chickamauga Group, including Mocassin Formation, Bays Formation, Sevier Shale, Ottosee Shale, Holston Formation, Lenoir Limestone and Athens Shale
    TNOmlc;10Middle and Lower parts of Chickamauga Group, including Moccassin Formation, Bays Formation, Sevier Shale, Ottosee Shale, Holston Formation, Lenoir Limestone, and Athens Shale
    TNOn;10Newala Formation, including Mascot Dolomite and Kingsport Formation
    TNOn;14Newala Formation, including Mascot Dolomite and Kingsport Formation
    TNOnc;10Unnamed (upper part of Knox Group), including Newala Formation, Mascot Dolomite, Kingsport Formation, Longview Dolomite, and Chepultepec Dolomite
    TNOnc;14Jonesboro Limestone, Newala Formation, Mascot Dolomite, Kingsport Formation, Longview Dolomite, and Chepultepec Dolomite
    TNOnc;8Wells Creek Formation and Knox Group (above Copper Ridge Dolomite)
    TNOo;10Ottosee Shale
    TNOo;14Ottosee Shale
    TNOpm;6Stones River Group; Pierce Limestone and Murfreesboro Limestone
    TNOpm;8Pierce and Murfreesboro Limestones
    TNOrd;6Stones River Group; Ridley Limestone
    TNOrd;8Ridley Limestone
    TNOs;10Sequatchie Formation
    TNOs;14Sequatchie Formation
    TNOsv;10Sevier Shale
    TNOsv;14Sevier Shale
    TNOu;6Ordovician [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;8Sequatchie Formation, Leipers Formation, Inman Formation and Catheys Formation
    TNPAcf;12Crooked Fork Group
    TNPAcf;8Crooked Fork Group, including Wartburg Sandstone, Glenmary Shale, Coalfield Sandstone, Burnt Mill Shale, Crossville Sandstone, Dorton Shale
    TNPAcg;12Crab Orchard Mounatins and Gizzard Group
    TNPAcg;8Crab Orchard Mountains and Gizzard Groups
    TNPAcm;12Cross Mountain Formation
    TNPAcm;8Cross Mountain Formation
    TNPAco;3Crab Orchard Mountains Group
    TNPAco;8Crab Orchard Mountains Group, including Rockcastle Conglomerate, Vandever Formation, Newton Sandstone, Whitwell Shale, and Sewanee Conglomerate
    TNPAf;8Fentress Formation
    TNPAg;3Gizzard Group including Warren Point Sandstone and Raccoon Mountain Formation
    TNPAg;8Gizzard Group, including Signal Point Shale, Warren Point Sandstone, and Raccoon Mountain Formation
    TNPAgg;12Graves Gap Formation
    TNPAgg;8Graves Gap Formation
    TNPAib;12Indian Bluff Formation
    TNPAib;8Indian Bluff Formation
    TNPAm;12Redoak Mountain Formation
    TNPAr;8Rockcastle Conglomerate
    TNPArm;8Redoak Mountain Formation
    TNPAsl;12Slatestone Formation
    TNPAsl;8Slatestone Formation
    TNPAvm;12Vowell Mountain Formation
    TNPAvm;8Vowell Mountain Formation
    TNpCAb;15Beech Granite
    TNpCAba;15Bakersville Gabbro
    TNpCAc;15Cranberry Granite
    TNpCAca;15Cades Sandstone
    TNpCAg;11Great Smoky Group, including Anakeesta Formation, Thunderhead Sandstone, and Elkmont Sandstone
    TNpCAg;15Great Smoky Group, includes Unnamed Sandstone Unit, Anakeesta Formation, Thunderhead Sandstone, and Elkmont Sandstone
    TNpCAm;15Mount Rogers Group including Bakersville Gabbro, Beech Granite, Cranberry Granite, and Roan Gneiss
    TNpCAo;15Ocoee Supergroup, including Walden Creek Group, (including Sandsuck Formation, Wilhite Formation, Shields Formation, Licklog Formation), Cades Sandstone, and Rich Butt Sandstone
    TNpCAr;15Roan Gneiss
    TNpCArb;15Rich Butt Sandstone
    TNpCAs;15Snowbird Group, including Pigeon Siltstone, Roaring Fork Sandstone, Metcalf Phyllite, Longarm Quartzite, and Wading Branch Formation
    TNpCAss;11Walden Creek Group; Sandsuck Formation
    TNpCAss;15Sandsuck Formation
    TNpCAw;11Walden Creek Group, including Sandsuck Formation, Wilhite Formation, Shields Formation, and Licklog Formation
    TNpCAw;15Walden Creek Group, including Sandsuck Formation, Wilhite Formation, Shields Formation, and Licklog Formation
    TNQal;1Alluvial deposits
    TNQal;3Alluvial deposits
    TNQal;8Alluvial deposits
    TNQl;1Loess
    TNQT;1High-level alluvial deposits
    TNQT;3High-Level Alluvial Deposits
    TNS;2Silurian 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;4Silurian 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;8Laurel Limestone, Osgood Formation, and Brassfield Formation
    TNSc;12Clinch Sandstone
    TNSr;10Rockwood Formation
    TNSr;12Rockwood Formation
    TNSrc;10Rockwood Formation and Clinch Sandstone
    TNSrc;12Rockwood Formation and Clinch Sandstone
    TNTcw;1Claiborne and Wilcox Formation
    TNTj;1Jackson (?) Formation
    TNTm;1Midway 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)
    ValueDefinition
    TN001 
    unit_age
    The geologic age from the source map used.

    type: character width: 60 output width: 60 (Source: Doug Stoeser)
    ValueDefinition
    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)
    ValueDefinition
    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)
    ValueDefinition
    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)
    ValueDefinition
    1contact, location certain
    4normal fault, location certain
    7shoreline or riverbank
    10thrust fault, lcoation certain (teeth on right from origin)
    35high-angle reverse fault, location certain
    52concealed fault
    54concealed high-angle reverse fault
    90left lateral fault, location certain
    124state boundary
    arc-para1
    Used for "decorated" lines where additional information is needed.

    type: integer width: 3 output width: 3 (Source: AAT data dictionary)
    ValueDefinition
    0no additional information
    1upthrown side is on the right
    arc-para2
    "Scratch" field used mostly in Alaska.

    type: integer width: 3 output width: 3 (Source: AAT data dictionary)
    ValueDefinition
    0no 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)
    ValueDefinition
    TN001 
    US001Johnson, 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)
  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)

This page is <https://mrdata.usgs.gov/geology/state/metadata/tn.faq.html>
Generated by mp version 2.9.50 on Mon Jan 27 16:07:34 2020