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Integrated Geologic Map Databases for the United States: Delaware, Maryland, New York, Pennsylvania, and Virginia

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Title:
Integrated Geologic Map Databases for the United States: Delaware, Maryland, New York, Pennsylvania, and Virginia
Abstract:
This report presents the results of the USGS Mineral Resources Program activity to compile a national-scale geologic map database at a nominal scale of 1:500,000, to support national and regional level projects, including mineral resource and geoenvironmental assessments. The only comprehensive sources for input into 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 as regional blocks of 3 degree quadrangles 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 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 CONUS documentation, 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?
    Dicken, Connie L., Nicholson, Suzanne W., Horton, John D., Kinney, Scott A., Gunther, Gregory, Foose, Michael P., and Mueller, Julia A.L., 2005, Integrated Geologic Map Databases for the United States: Delaware, Maryland, New York, Pennsylvania, and Virginia: U.S. Geological Survey Open-File Report 2005-1325, U.S. Geological Survey, Reston, VA.

    Online Links:

  2. What geographic area does the data set cover?
    West_Bounding_Coordinate: -79.762772
    East_Bounding_Coordinate: -71.673999
    North_Bounding_Coordinate: 45.015802
    South_Bounding_Coordinate: 40.468406
  3. What does it look like?
  4. Does the data set describe conditions during a particular time period?
    Calendar_Date: 2005Currentness_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?
    NY_geol.pat
    Polygon attribute table for the New York geologic coverage. (Source: ESRI)
    ORIG_LABEL
    unmodified map unit symbol from source cover.

    type: character width: 12 output width: 12 (Source: Doug Stoeser)
    ValueDefinition
    CaAusterlitz Phyllite
    CbkBeekmantown Group (in part)
    CcCheshire Quartzite
    CcdCheshire Quartzite and Dalton Formation
    CevEverett Schist
    CgGermantown Formation
    CgtGreenstones and tuffs and/or basalt
    CmMettawee Slate
    CnNassau Formation
    CpPotsdam Sandstone
    CpgPoughquag Quartzite
    CpwPoultney Formation ("A" Member)
    CrRensselaer Graywacke
    CsStissing Formation
    CthTheresa (Galway) Formation
    CwBriarcliff Dolostone and Pine Plains Formation
    CwmdWinooski Dolostone, Monkton Quartzite, and Dunham (Rutland) Dolostone
    DbgMuscovite-biotite granite gneiss
    DcoOswayo and Venango Formations
    DctConneaut Group, undivided
    DcyMachias Formation
    DcydGowanda, South Wales, and Dunkirk Shales
    DcylWestfield Shale and Laona Siltstone
    DcysNortheast Shale and Shumla Siltstone
    DgGenesee Group
    DglGlenerie Formation
    DgoOneonta Formation
    DguUnadilla, Laurens, New Lisbon, and Gilboa Formations
    DhUndifferentiated Hamilton Group
    DhgHelderberg Group
    DhldLudlowville Formation
    DhmUndifferentiated Lower Hamilton Group
    DhmoMoscow Formation
    DhmrMarcellus Formation
    DhplPlattekill and Ashokan Formations
    DhpmPanther Mountain Formation
    DhskSkaneateles Formation
    DjWiscoy Formation
    DoOriskany Formation
    DobOnondaga and Bois Blanc Limestones
    DonOnondaga Limestone
    DouOnondaga Limestone
    DpgdMuscovite-biotite granodiorite
    DpgrMuscovite-biotite granite
    Ds"Enfield" and Kattel Formations
    DSUndifferentiated Lower Devonian and Silurian rocks
    DsCashaqua and Middlesex Shales
    DsSonyea Group
    DSPort Ewen thru Manlius Limestone, Rondout Dolostone, undifferentiated.
    DswLower Walton Formation
    DtTully Limestone
    DwcNunda Formation, West Hill Formation
    DwfAngola and Rhinestreet Shales
    DwgWest Hill and Gardeau Formations
    DwhHonesdale Formation
    DwmBeers Hill, Dunn Hill, Millport, and Moreland Shales
    DwnNunda Formation
    DwnmNew Milford Formation
    DwrLower Beers Hill Shale
    DwrgGardeau Formation
    DwsSlide Mountain Formation
    DwwUpper Walton Formation
    KJdLamprophyre, trachyte, and rhyolite dikes
    KJkKimberlite and alnoite dikes and diatremes
    KJtpTrachyte porphyry
    KmMonmouth Group, Matawan Group and Magothy Formation
    KrRaritan Formation
    MpCuyahoga and Knapp Formations
    OagAustin Glen Formation (Pawlet in Vermont)
    ObBedford Gneiss
    ObaBalmville Limestone
    ObanBiotite augite norite
    ObkBeekmantown Group (in part)
    ObrBlack River Group
    OcCanajoharie Shale
    OCeElizaville Formation
    OCiInwood Marble
    OCsCambrian thru Middle Ordovician carbonate rock
    OCstStockbridge Formation
    OCthTheresa Formation
    OCuUndifferentiated Middle Ordovician thru Lower Cambrian allochthonous rocks
    OCwWappinger Group
    OchValcour, Crown Point, and Day Point Limestones
    OcumCumberland Head Argillite
    OdDiorite with hornblende and/or biotite
    OfFrankfort Formation
    OgbGabbro or norite to hornblende diorite
    OhHornblendite
    OhnHornblende norite
    OhrHarrison/Ravenswood Gneiss
    OhtHartland Formation
    OiIberville Shale (in Vermont)
    OmManhattan Formation, undivided
    OmaManhattan Formation (A Member)
    OmiMount Merino and Indian River Formations
    OnNormanskill Shale
    OoOswego Sandstone
    OopxOlivine pyroxenite
    OpPoultney Formation ("B" and "C" Members)
    OplPillow lava
    OpwPulaski and Whetstone Gulf Formations
    OpxPyroxenite
    OqQueenston Shale
    OquQuassaic Quartzite
    OsSerpentinite
    OscSchenectady Formation
    OsfStuyvesant Falls Formation
    OspStony Point Shale
    OtTrenton Group
    OtbrTrenton and Black River Groups, undivided
    OtmTaconic Melange
    OuUtica Shale
    OwCopake and Halcyon Lake Formations, Rochdale Limestone
    OwlWalloomsac Formation
    PpConnoquenessing and Sharon Formations
    QGlacial and Alluvial Deposits
    SabAkron Dolostone
    SbsBloomsburg Formation
    SccCobleskill Limestone
    SclClinton Group
    ScsCobleskill Limestone
    ScvCamillus, Syracuse, and Vernon Formations
    ScyCamillus and Syracuse Formations
    SikIrondequoit Limestone thru Kodak Sandstone
    SlIlion Shale
    SlLockport Group
    SmMedina Group
    SmOqUndifferentiated Medina Group and Queenstone Formation
    SrDecew Dolostone and Rochester Shale
    SrpRondout Formation
    SsySyracuse Formation
    SvVernon Shale
    TrbBrunswick Formation, undivided
    TrbaBrunswick Formation
    TrbgBrunswick Formation
    TrbsBrunswick Formation
    TrhcHammer Creek Formation
    TrlLadentown diabase and baslatic lava
    TrpPalisade Diabase
    TrsStockton Formation
    waterwater
    aMetanorthosite and anorthositic gneiss
    achHybrid rock: mangeritic to charnockitic gneiss
    ackInterlayered gabbroic or noritic metanorthosite
    amAmphibolite
    amgInterlayered amphibolite and granitic, charnockitic, mangeritic, or syenitic gneiss
    amuHybrid rock: anorthositic and metasedimentary rock
    aoGabbroic or noritic metanorthosite
    bgBiotite granite gneiss
    bhgBiotite-hornblende granite and granite gneiss
    bqpBiotite-quartz-plagioclase paragneiss, amphibolite, and related migmatite
    bqpcBiotite-quartz-plagioclase gneiss
    bqpqBiotite-quartz-plagioclase paragneiss
    csDolomitic and calcitic marbles interlayered with significant amounts of calcsilicate rock
    ffgFerrohedenbergite-fayalite granite and granite gneiss
    garbQuartz-feldspar gneiss
    gbMetagabbro
    hbgBiotite and/or hornblende granite gneiss
    hbgoBiotite and/or hornblende granite gneiss
    hgHornblende granite and granite gneiss
    hqsHornblende-quartz syenite gneiss
    hsHornblende syenite gneiss
    lgLeucogranitic (alaskitic) gneiss
    mbCalcitic and dolomitic marble
    muUndivided metasedimentary rock and related migmatite
    mugInterlayered metasedimentary rock and granitic, charnockitic, mangeritic, or syenitic gneiss
    phgPyroxene and/or hornblende granitic gneiss
    phgsCharnockite, granitic and quartz syenite gneiss
    phqsCharnockite, mangerite, pyroxene-quartz syenite gneiss
    psMangerite, pyroxene-(hornblende) syenite gneiss
    qpgPyroxene-hornblende-quartz-plagioclase gneiss
    qtQuartzite, quartz-biotite schist and graphitic schist
    qtcsGarnet-biotite-quartz-feldspar gneiss
    qtlgGarnet-bearing gneiss and interlayered quartzite
    rgRusty and gray biotite-quartz-feldspar gneiss
    scSillimanite-cordierite-almandine-biotite-quartz-feldspar gneiss
    fFordham Gneiss, undivided
    faFordham Gneiss (A member)
    fbFordham Gneiss (B member)
    fcFordham Gneiss (C and D member)
    feFordham Gneiss (E member)
    pgPoundridge Gneiss
    yYonkers Gneiss
    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
    CAa;2Austerlitz Phyllite
    CAbk;1Beekmantown Group (in part)
    CAbk;2Beekmantown Group (in part)
    CAc;1Cheshire Quartzite
    CAc;2Cheshire Quartzite
    CAc;3Cheshire Quartzite
    CAcd;2Cheshire Quartzite and Dalton Formation
    CAev;2Everett Schist
    CAev;3Everett Schist
    CAg;2Germantown Formation
    CAg;3Germantown Formation
    CAgt;2Greenstones and tuffs and/or basalt
    CAm;1Mettawee Slate
    CAm;2Mettawee Slate
    CAn;2Nassau Formation
    CAn;3Nassau Formation
    CAp;1Potsdam Sandstone
    CAp;2Potsdam Sandstone
    CApg;3Poughquag Quartzite
    CApw;1Poultney Formation ("A" Member)
    CApw;2Poultney Formation ("A" Member)
    CAr;2Rensselaer Graywacke
    CAs;3Stissing Formation
    CAth;2Theresa (Galway) Formation
    CAw;2Briarcliff Dolostone and Pine Plains Formation
    CAw;3Briarcliff Dolostone and Pine Plains Formation
    CAwmd;1Winooski Dolostone, Monkton Quartzite, and Dunham (Rutland) Dolostone
    CAwmd;2Winooski Dolostone, Monkton Quartzite, and Dunham (Rutland) Dolostone
    Dbg;3Muscovite-biotite granite gneiss
    Dco;4Oswayo and Venango Formations
    Dct;4Conneaut Group, undivided
    Dct;5Conneaut Group, undivided
    Dcy;4Machias Formation
    Dcy;5Machias Formation
    Dcyd;4Gowanda, South Wales, and Dunkirk Shales
    Dcyl;4Westfield Shale and Laona Siltstone
    Dcys;4Northeast Shale and Shumla Siltstone
    Dg;4Genesee Group
    Dg;5Genesee Group
    Dgl;2Glenerie Formation
    Dgl;3Glenerie Formation
    Dgo;2Oneonta Formation
    Dgo;3Oneonta Formation
    Dgo;5Oneonta Formation
    Dgu;2Unadilla, Laurens, New Lisbon, and Gilboa Formations
    Dgu;5Unadilla, Laurens, New Lisbon, and Gilboa Formations
    Dh;3Undifferentiated Hamilton Group
    Dhg;2Helderberg Group
    Dhg;3Helderberg Group
    Dhg;5Helderberg Group
    Dhld;4Ludlowville Formation
    Dhld;5Ludlowville Formation
    Dhm;2Undifferentiated Lower Hamilton Group
    Dhm;3Undifferentiated Lower Hamilton Group
    Dhmo;2Moscow Formation
    Dhmo;3Moscow Formation
    Dhmo;4Moscow Formation
    Dhmo;5Moscow Formation
    Dhmr;2Marcellus Formation
    Dhmr;4Marcellus Formation
    Dhmr;5Marcellus Formation
    Dhpl;2Plattekill and Ashokan Formations
    Dhpl;3Plattekill and Ashokan Formations
    Dhpm;2Panther Mountain Formation
    Dhpm;5Panther Mountain Formation
    Dhsk;4Skaneateles Formation
    Dhsk;5Skaneateles Formation
    Dj;4Wiscoy Formation
    Dj;5Wiscoy Formation
    Do;2Oriskany Formation
    Do;4Oriskany Formation
    Do;5Oriskany Formation
    Dob;4Onondaga and Bois Blanc Limestones
    Don;2Onondaga Limestone
    Don;5Onondaga Limestone
    Dou;2Onondaga Limestone
    Dou;3Onondaga Limestone
    Dpgd;3Muscovite-biotite granodiorite
    Dpgr;3Muscovite-biotite granite
    Ds;2"Enfield" and Kattel Formations
    Ds;4Cashaqua and Middlesex Shales
    Ds;5Sonyea Group
    DS;3Undifferentiated Lower Devonian and Silurian rocks
    DSu;2Port Ewen thru Manlius Limestone, Rondout Dolostone, undifferentiated.
    Dsw;2Lower Walton Formation
    Dsw;3Lower Walton Formation
    Dt;5Tully Limestone
    Dwc;5Nunda Formation, West Hill Formation
    Dwf;4Angola and Rhinestreet Shales
    Dwg;4West Hill and Gardeau Formations
    Dwg;5West Hill and Gardeau Formations
    Dwh;2Honesdale Formation
    Dwh;3Honesdale Formation
    Dwm;2Beers Hill, Dunn Hill, Millport, and Moreland Shales
    Dwm;5Beers Hill, Dunn Hill, Millport, and Moreland Shales
    Dwn;4Nunda Formation
    Dwn;5Nunda Formation
    Dwnm;5New Milford Formation
    Dwr;4Lower Beers Hill Shale
    Dwr;5Lower Beers Hill Shale
    Dwrg;5Gardeau Formation
    Dws;2Slide Mountain Formation
    Dws;3Slide Mountain Formation
    Dws;5Slide Mountain Formation
    Dww;2Upper Walton Formation
    Dww;3Upper Walton Formation
    KJd;1Lamprophyre, trachyte, and rhyolite dikes
    KJd;2Lamprophyre, trachyte, and rhyolite dikes
    KJk;5Kimberlite and alnoite dikes and diatremes
    KJtp;1Trachyte porphyry
    Km;3Monmouth Group, Matawan Group and Magothy Formation
    Kr;3Raritan Formation
    Mp;4Cuyahoga and Knapp Formations
    Oag;1Austin Glen Formation (Pawlet in Vermont)
    Oag;2Austin Glen Formation (Pawlet in Vermont)
    Oag;3Austin Glen Formation (Pawlet in Vermont)
    Ob;3Bedford Gneiss
    Oba;2Balmville Limestone
    Oba;3Balmville Limestone
    Oban;3Biotite augite norite
    Obk;1Beekmantown Group (in part)
    Obk;2Beekmantown Group (in part)
    Obr;1Black River Group
    Obr;2Black River Group
    Oc;1Canajoharie Shale
    Oc;2Canajoharie Shale
    OCAe;2Elizaville Formation
    OCAe;3Elizaville Formation
    OCAi;3Inwood Marble
    OCAs;1Cambrian thru Middle Ordovician carbonate rock
    OCAs;2Cambrian thru Middle Ordovician carbonate rock
    OCAs;3Cambrian thru Middle Ordovician carbonate rock
    OCAst;2Stockbridge Formation
    OCAst;3Stockbridge Formation
    OCAth;1Theresa Formation
    OCAu;1Undifferentiated Middle Ordovician thru Lower Cambrian allochthonous rocks
    OCAw;3Wappinger Group
    Och;1Valcour, Crown Point, and Day Point Limestones
    Ocum;1Cumberland Head Argillite
    Od;3Diorite with hornblende and/or biotite
    Of;2Frankfort Formation
    Ogb;3Gabbro or norite to hornblende diorite
    Oh;3Hornblendite
    Ohn;3Hornblende norite
    Ohr;3Harrison/Ravenswood Gneiss
    Oht;3Hartland Formation
    Oi;1Iberville Shale (in Vermont)
    Om;3Manhattan Formation, undivided
    Oma;3Manhattan Formation (A Member)
    Omi;1Mount Merino and Indian River Formations
    Omi;2Mount Merino and Indian River Formations
    Omi;3Mount Merino and Indian River Formations
    On;2Normanskill Shale
    On;3Normanskill Shale
    Oo;1Oswego Sandstone
    Oo;2Oswego Sandstone
    Oo;5Oswego Sandstone
    Oopx;3Olivine pyroxenite
    Op;1Poultney Formation ("B" and "C" Members)
    Op;2Poultney Formation ("B" and "C" Members)
    Opl;2Pillow lava
    Opw;1Pulaski and Whetstone Gulf Formations
    Opw;2Pulaski and Whetstone Gulf Formations
    Opw;5Pulaski and Whetstone Gulf Formations
    Opx;3Pyroxenite
    Oq;4Queenston Shale
    Oq;5Queenston Shale
    Oqu;3Quassaic Quartzite
    Os;3Serpentinite
    Osc;2Schenectady Formation
    Osf;2Stuyvesant Falls Formation
    Osf;3Stuyvesant Falls Formation
    Osp;1Stony Point Shale
    Ot;1Trenton Group
    Ot;2Trenton Group
    Otbr;1Trenton and Black River Groups, undivided
    Otbr;2Trenton and Black River Groups, undivided
    Otm;1Taconic Melange
    Otm;2Taconic Melange
    Otm;3Taconic Melange
    Ou;1Utica Shale
    Ou;2Utica Shale
    Ou;3Utica Shale
    Ow;2Copake and Halcyon Lake Formations, Rochdale Limestone
    Ow;3Copake and Halcyon Lake Formations, Rochdale Limestone
    Owl;2Walloomsac Formation
    Owl;3Walloomsac Formation
    PAp;4Connoquenessing and Sharon Formations
    Q;1Glacial and Alluvial Deposits
    Q;2Glacial and Alluvial Deposits
    Q;3Glacial and Alluvial Deposits
    Sab;4Akron Dolostone
    Sab;5Akron Dolostone
    Sbs;3Bloomsburg Formation
    Scc;5Cobleskill Limestone
    Scl;2Clinton Group
    Scl;4Clinton Group
    Scl;5Clinton Group
    Scs;2Cobleskill Limestone
    Scv;4Camillus, Syracuse, and Vernon Formations
    Scy;5Camillus and Syracuse Formations
    Sik;4Irondequoit Limestone thru Kodak Sandstone
    Sik;5Irondequoit Limestone thru Kodak Sandstone
    Sl;2Ilion Shale
    Sl;4Lockport Group
    Sl;5Lockport Group
    Sm;4Medina Group
    Sm;5Medina Group
    SmOq;1Undifferentiated Medina Group and Queenstone Formation
    SmOq;5Undifferentiated Medina Group and Queenstone Formation
    Sr;4Decew Dolostone and Rochester Shale
    Sr;5Decew Dolostone and Rochester Shale
    Srp;3Rondout Formation
    Ssy;5Syracuse Formation
    Sv;2Vernon Shale
    Sv;5Vernon Shale
    TRb;3Brunswick Formation, undivided
    TRba;3Brunswick Formation
    TRbg;3Brunswick Formation
    TRbs;3Brunswick Formation
    TRhc;3Hammer Creek Formation
    TRl;3Ladentown diabase and baslatic lava
    TRp;3Palisade Diabase
    TRs;3Stockton Formation
    water;1water
    water;2water
    water;3water
    water;4water
    water;5water
    Ya;1Metanorthosite and anorthositic gneiss
    Ya;2Metanorthosite and anorthositic gneiss
    Yach;1Hybrid rock: mangeritic to charnockitic gneiss
    Yack;1Interlayered gabbroic or noritic metanorthosite
    Yam;1Amphibolite
    Yam;2Amphibolite
    Yam;3Amphibolite
    Yamg;1Interlayered amphibolite and granitic, charnockitic, mangeritic, or syenitic gneiss
    Yamg;2Interlayered amphibolite and granitic, charnockitic, mangeritic, or syenitic gneiss
    Yamg;3Interlayered amphibolite and granitic, charnockitic, mangeritic, or syenitic gneiss
    Yamu;1Hybrid rock: anorthositic and metasedimentary rock
    Yao;1Gabbroic or noritic metanorthosite
    Yao;2Gabbroic or noritic metanorthosite
    Ybg;2Biotite granite gneiss
    Ybg;3Biotite granite gneiss
    Ybhg;3Biotite-hornblende granite and granite gneiss
    Ybqp;1Biotite-quartz-plagioclase paragneiss, amphibolite, and related migmatite
    Ybqp;2Biotite-quartz-plagioclase paragneiss, amphibolite, and related migmatite
    Ybqpc;3Biotite-quartz-plagioclase gneiss
    Ybqpq;1Biotite-quartz-plagioclase paragneiss
    Ybqpq;2Biotite-quartz-plagioclase paragneiss
    Ycs;1Dolomitic and calcitic marbles interlayered with significant amounts of calcsilicate rock
    Ycs;3Dolomitic and calcitic marbles interlayered with significant amounts of calcsilicate rock
    Yffg;1Ferrohedenbergite-fayalite granite and granite gneiss
    Ygarb;1Quartz-feldspar gneiss
    Ygarb;2Quartz-feldspar gneiss
    Ygb;1Metagabbro
    Ygb;2Metagabbro
    Yhbg;1Biotite and/or hornblende granite gneiss
    Yhbg;2Biotite and/or hornblende granite gneiss
    Yhbgo;1Biotite and/or hornblende granite gneiss
    Yhbgo;2Biotite and/or hornblende granite gneiss
    Yhg;3Hornblende granite and granite gneiss
    Yhqs;1Hornblende-quartz syenite gneiss
    Yhs;1Hornblende syenite gneiss
    Ylg;1Leucogranitic (alaskitic) gneiss
    Ylg;2Leucogranitic (alaskitic) gneiss
    Ylg;3Leucogranitic (alaskitic) gneiss
    Ymb;1Calcitic and dolomitic marble
    Ymb;2Calcitic and dolomitic marble
    Ymb;3Calcitic and dolomitic marble
    Ymu;1Undivided metasedimentary rock and related migmatite
    Ymu;2Undivided metasedimentary rock and related migmatite
    Ymug;1Interlayered metasedimentary rock and granitic, charnockitic, mangeritic, or syenitic gneiss
    Ymug;2Interlayered metasedimentary rock and granitic, charnockitic, mangeritic, or syenitic gneiss
    Ymug;3Interlayered metasedimentary rock and granitic, charnockitic, mangeritic, or syenitic gneiss
    Yphg;1Pyroxene and/or hornblende granitic gneiss
    Yphgs;1Charnockite, granitic and quartz syenite gneiss
    Yphgs;2Charnockite, granitic and quartz syenite gneiss
    Yphqs;1Charnockite, mangerite, pyroxene-quartz syenite gneiss
    Yphqs;2Charnockite, mangerite, pyroxene-quartz syenite gneiss
    Yps;1Mangerite, pyroxene-(hornblende) syenite gneiss
    Yqpg;2Pyroxene-hornblende-quartz-plagioclase gneiss
    Yqpg;3Pyroxene-hornblende-quartz-plagioclase gneiss
    Yqt;1Quartzite, quartz-biotite schist and graphitic schist
    Yqt;2Quartzite, quartz-biotite schist and graphitic schist
    Yqtcs;3Garnet-biotite-quartz-feldspar gneiss
    Yqtlg;3Garnet-bearing gneiss and interlayered quartzite
    Yrg;3Rusty and gray biotite-quartz-feldspar gneiss
    Ysc;3Sillimanite-cordierite-almandine-biotite-quartz-feldspar gneiss
    Zf;3Fordham Gneiss, undivided
    Zfa;3Fordham Gneiss (A member)
    Zfb;3Fordham Gneiss (B member)
    Zfc;3Fordham Gneiss (C and D member)
    Zfe;3Fordham Gneiss (E member)
    Zpg;3Poundridge Gneiss
    Zy;3Yonkers Gneiss
    unit_link
    composite map label = ST + sgmc_label This creates a unique identifier for every unit in the CONUS (continental United States) covers.

    type: character width: 18 output width: 18 (Source: Doug Stoeser)
    ValueDefinition
    NYCAa;2Austerlitz Phyllite
    NYCAbk;1Beekmantown Group (in part)
    NYCAbk;2Beekmantown Group (in part)
    NYCAc;1Cheshire Quartzite
    NYCAc;2Cheshire Quartzite
    NYCAc;3Cheshire Quartzite
    NYCAcd;2Cheshire Quartzite and Dalton Formation
    NYCAev;2Everett Schist
    NYCAev;3Everett Schist
    NYCAg;2Germantown Formation
    NYCAg;3Germantown Formation
    NYCAgt;2Greenstones and tuffs and/or basalt
    NYCAm;1Mettawee Slate
    NYCAm;2Mettawee Slate
    NYCAn;2Nassau Formation
    NYCAn;3Nassau Formation
    NYCAp;1Potsdam Sandstone
    NYCAp;2Potsdam Sandstone
    NYCApg;3Poughquag Quartzite
    NYCApw;1Poultney Formation ("A" Member)
    NYCApw;2Poultney Formation ("A" Member)
    NYCAr;2Rensselaer Graywacke
    NYCAs;3Stissing Formation
    NYCAth;2Theresa (Galway) Formation
    NYCAw;2Briarcliff Dolostone and Pine Plains Formation
    NYCAw;3Briarcliff Dolostone and Pine Plains Formation
    NYCAwmd;1Winooski Dolostone, Monkton Quartzite, and Dunham (Rutland) Dolostone
    NYCAwmd;2Winooski Dolostone, Monkton Quartzite, and Dunham (Rutland) Dolostone
    NYDbg;3Muscovite-biotite granite gneiss
    NYDco;4Oswayo and Venango Formations
    NYDct;4Conneaut Group, undivided
    NYDct;5Conneaut Group, undivided
    NYDcy;4Machias Formation
    NYDcy;5Machias Formation
    NYDcyd;4Gowanda, South Wales, and Dunkirk Shales
    NYDcyl;4Westfield Shale and Laona Siltstone
    NYDcys;4Northeast Shale and Shumla Siltstone
    NYDg;4Genesee Group
    NYDg;5Genesee Group
    NYDgl;2Glenerie Formation
    NYDgl;3Glenerie Formation
    NYDgo;2Oneonta Formation
    NYDgo;3Oneonta Formation
    NYDgo;5Oneonta Formation
    NYDgu;2Unadilla, Laurens, New Lisbon, and Gilboa Formations
    NYDgu;5Unadilla, Laurens, New Lisbon, and Gilboa Formations
    NYDh;3Undifferentiated Hamilton Group
    NYDhg;2Helderberg Group
    NYDhg;3Helderberg Group
    NYDhg;5Helderberg Group
    NYDhld;4Ludlowville Formation
    NYDhld;5Ludlowville Formation
    NYDhm;2Undifferentiated Lower Hamilton Group
    NYDhm;3Undifferentiated Lower Hamilton Group
    NYDhmo;2Moscow Formation
    NYDhmo;3Moscow Formation
    NYDhmo;4Moscow Formation
    NYDhmo;5Moscow Formation
    NYDhmr;2Marcellus Formation
    NYDhmr;4Marcellus Formation
    NYDhmr;5Marcellus Formation
    NYDhpl;2Plattekill and Ashokan Formations
    NYDhpl;3Plattekill and Ashokan Formations
    NYDhpm;2Panther Mountain Formation
    NYDhpm;5Panther Mountain Formation
    NYDhsk;4Skaneateles Formation
    NYDhsk;5Skaneateles Formation
    NYDj;4Wiscoy Formation
    NYDj;5Wiscoy Formation
    NYDo;2Oriskany Formation
    NYDo;4Oriskany Formation
    NYDo;5Oriskany Formation
    NYDob;4Onondaga and Bois Blanc Limestones
    NYDon;2Onondaga Limestone
    NYDon;5Onondaga Limestone
    NYDou;2Onondaga Limestone
    NYDou;3Onondaga Limestone
    NYDpgd;3Muscovite-biotite granodiorite
    NYDpgr;3Muscovite-biotite granite
    NYDs;2"Enfield" and Kattel Formations
    NYDs;4Cashaqua and Middlesex Shales
    NYDs;5Sonyea Group
    NYDS;3Undifferentiated Lower Devonian and Silurian rocks
    NYDSu;2Port Ewen thru Manlius Limestone, Rondout Dolostone, undifferentiated.
    NYDsw;2Lower Walton Formation
    NYDsw;3Lower Walton Formation
    NYDt;5Tully Limestone
    NYDwc;5Nunda Formation, West Hill Formation
    NYDwf;4Angola and Rhinestreet Shales
    NYDwg;4West Hill and Gardeau Formations
    NYDwg;5West Hill and Gardeau Formations
    NYDwh;2Honesdale Formation
    NYDwh;3Honesdale Formation
    NYDwm;2Beers Hill, Dunn Hill, Millport, and Moreland Shales
    NYDwm;5Beers Hill, Dunn Hill, Millport, and Moreland Shales
    NYDwn;4Nunda Formation
    NYDwn;5Nunda Formation
    NYDwnm;5New Milford Formation
    NYDwr;4Lower Beers Hill Shale
    NYDwr;5Lower Beers Hill Shale
    NYDwrg;5Gardeau Formation
    NYDws;2Slide Mountain Formation
    NYDws;3Slide Mountain Formation
    NYDws;5Slide Mountain Formation
    NYDww;2Upper Walton Formation
    NYDww;3Upper Walton Formation
    NYKJd;1Lamprophyre, trachyte, and rhyolite dikes
    NYKJd;2Lamprophyre, trachyte, and rhyolite dikes
    NYKJk;5Kimberlite and alnoite dikes and diatremes
    NYKJtp;1Trachyte porphyry
    NYKm;3Monmouth Group, Matawan Group and Magothy Formation
    NYKr;3Raritan Formation
    NYMp;4Cuyahoga and Knapp Formations
    NYOag;1Austin Glen Formation (Pawlet in Vermont)
    NYOag;2Austin Glen Formation (Pawlet in Vermont)
    NYOag;3Austin Glen Formation (Pawlet in Vermont)
    NYOb;3Bedford Gneiss
    NYOba;2Balmville Limestone
    NYOba;3Balmville Limestone
    NYOban;3Biotite augite norite
    NYObk;1Beekmantown Group (in part)
    NYObk;2Beekmantown Group (in part)
    NYObr;1Black River Group
    NYObr;2Black River Group
    NYOc;1Canajoharie Shale
    NYOc;2Canajoharie Shale
    NYOCAe;2Elizaville Formation
    NYOCAe;3Elizaville Formation
    NYOCAi;3Inwood Marble
    NYOCAs;1Cambrian thru Middle Ordovician carbonate rock
    NYOCAs;2Cambrian thru Middle Ordovician carbonate rock
    NYOCAs;3Cambrian thru Middle Ordovician carbonate rock
    NYOCAst;2Stockbridge Formation
    NYOCAst;3Stockbridge Formation
    NYOCAth;1Theresa Formation
    NYOCAu;1Undifferentiated Middle Ordovician thru Lower Cambrian allochthonous rocks
    NYOCAw;3Wappinger Group
    NYOch;1Valcour, Crown Point, and Day Point Limestones
    NYOcum;1Cumberland Head Argillite
    NYOd;3Diorite with hornblende and/or biotite
    NYOf;2Frankfort Formation
    NYOgb;3Gabbro or norite to hornblende diorite
    NYOh;3Hornblendite
    NYOhn;3Hornblende norite
    NYOhr;3Harrison/Ravenswood Gneiss
    NYOht;3Hartland Formation
    NYOi;1Iberville Shale (in Vermont)
    NYOm;3Manhattan Formation, undivided
    NYOma;3Manhattan Formation (A Member)
    NYOmi;1Mount Merino and Indian River Formations
    NYOmi;2Mount Merino and Indian River Formations
    NYOmi;3Mount Merino and Indian River Formations
    NYOn;2Normanskill Shale
    NYOn;3Normanskill Shale
    NYOo;1Oswego Sandstone
    NYOo;2Oswego Sandstone
    NYOo;5Oswego Sandstone
    NYOopx;3Olivine pyroxenite
    NYOp;1Poultney Formation ("B" and "C" Members)
    NYOp;2Poultney Formation ("B" and "C" Members)
    NYOpl;2Pillow lava
    NYOpw;1Pulaski and Whetstone Gulf Formations
    NYOpw;2Pulaski and Whetstone Gulf Formations
    NYOpw;5Pulaski and Whetstone Gulf Formations
    NYOpx;3Pyroxenite
    NYOq;4Queenston Shale
    NYOq;5Queenston Shale
    NYOqu;3Quassaic Quartzite
    NYOs;3Serpentinite
    NYOsc;2Schenectady Formation
    NYOsf;2Stuyvesant Falls Formation
    NYOsf;3Stuyvesant Falls Formation
    NYOsp;1Stony Point Shale
    NYOt;1Trenton Group
    NYOt;2Trenton Group
    NYOtbr;1Trenton and Black River Groups, undivided
    NYOtbr;2Trenton and Black River Groups, undivided
    NYOtm;1Taconic Melange
    NYOtm;2Taconic Melange
    NYOtm;3Taconic Melange
    NYOu;1Utica Shale
    NYOu;2Utica Shale
    NYOu;3Utica Shale
    NYOw;2Copake and Halcyon Lake Formations, Rochdale Limestone
    NYOw;3Copake and Halcyon Lake Formations, Rochdale Limestone
    NYOwl;2Walloomsac Formation
    NYOwl;3Walloomsac Formation
    NYPAp;4Connoquenessing and Sharon Formations
    NYQ;1Glacial and Alluvial Deposits
    NYQ;2Glacial and Alluvial Deposits
    NYQ;3Glacial and Alluvial Deposits
    NYSab;4Akron Dolostone
    NYSab;5Akron Dolostone
    NYSbs;3Bloomsburg Formation
    NYScc;5Cobleskill Limestone
    NYScl;2Clinton Group
    NYScl;4Clinton Group
    NYScl;5Clinton Group
    NYScs;2Cobleskill Limestone
    NYScv;4Camillus, Syracuse, and Vernon Formations
    NYScy;5Camillus and Syracuse Formations
    NYSik;4Irondequoit Limestone thru Kodak Sandstone
    NYSik;5Irondequoit Limestone thru Kodak Sandstone
    NYSl;2Ilion Shale
    NYSl;4Lockport Group
    NYSl;5Lockport Group
    NYSm;4Medina Group
    NYSm;5Medina Group
    NYSmOq;1Undifferentiated Medina Group and Queenstone Formation
    NYSmOq;5Undifferentiated Medina Group and Queenstone Formation
    NYSr;4Decew Dolostone and Rochester Shale
    NYSr;5Decew Dolostone and Rochester Shale
    NYSrp;3Rondout Formation
    NYSsy;5Syracuse Formation
    NYSv;2Vernon Shale
    NYSv;5Vernon Shale
    NYTRb;3Brunswick Formation, undivided
    NYTRba;3Brunswick Formation
    NYTRbg;3Brunswick Formation
    NYTRbs;3Brunswick Formation
    NYTRhc;3Hammer Creek Formation
    NYTRl;3Ladentown diabase and baslatic lava
    NYTRp;3Palisade Diabase
    NYTRs;3Stockton Formation
    NYwater;1water
    NYwater;2water
    NYwater;3water
    NYwater;4water
    NYwater;5water
    NYYa;1Metanorthosite and anorthositic gneiss
    NYYa;2Metanorthosite and anorthositic gneiss
    NYYach;1Hybrid rock: mangeritic to charnockitic gneiss
    NYYack;1Interlayered gabbroic or noritic metanorthosite
    NYYam;1Amphibolite
    NYYam;2Amphibolite
    NYYam;3Amphibolite
    NYYamg;1Interlayered amphibolite and granitic, charnockitic, mangeritic, or syenitic gneiss
    NYYamg;2Interlayered amphibolite and granitic, charnockitic, mangeritic, or syenitic gneiss
    NYYamg;3Interlayered amphibolite and granitic, charnockitic, mangeritic, or syenitic gneiss
    NYYamu;1Hybrid rock: anorthositic and metasedimentary rock
    NYYao;1Gabbroic or noritic metanorthosite
    NYYao;2Gabbroic or noritic metanorthosite
    NYYbg;2Biotite granite gneiss
    NYYbg;3Biotite granite gneiss
    NYYbhg;3Biotite-hornblende granite and granite gneiss
    NYYbqp;1Biotite-quartz-plagioclase paragneiss, amphibolite, and related migmatite
    NYYbqp;2Biotite-quartz-plagioclase paragneiss, amphibolite, and related migmatite
    NYYbqpc;3Biotite-quartz-plagioclase gneiss
    NYYbqpq;1Biotite-quartz-plagioclase paragneiss
    NYYbqpq;2Biotite-quartz-plagioclase paragneiss
    NYYcs;1Dolomitic and calcitic marbles interlayered with significant amounts of calcsilicate rock
    NYYcs;3Dolomitic and calcitic marbles interlayered with significant amounts of calcsilicate rock
    NYYffg;1Ferrohedenbergite-fayalite granite and granite gneiss
    NYYgarb;1Quartz-feldspar gneiss
    NYYgarb;2Quartz-feldspar gneiss
    NYYgb;1Metagabbro
    NYYgb;2Metagabbro
    NYYhbg;1Biotite and/or hornblende granite gneiss
    NYYhbg;2Biotite and/or hornblende granite gneiss
    NYYhbgo;1Biotite and/or hornblende granite gneiss
    NYYhbgo;2Biotite and/or hornblende granite gneiss
    NYYhg;3Hornblende granite and granite gneiss
    NYYhqs;1Hornblende-quartz syenite gneiss
    NYYhs;1Hornblende syenite gneiss
    NYYlg;1Leucogranitic (alaskitic) gneiss
    NYYlg;2Leucogranitic (alaskitic) gneiss
    NYYlg;3Leucogranitic (alaskitic) gneiss
    NYYmb;1Calcitic and dolomitic marble
    NYYmb;2Calcitic and dolomitic marble
    NYYmb;3Calcitic and dolomitic marble
    NYYmu;1Undivided metasedimentary rock and related migmatite
    NYYmu;2Undivided metasedimentary rock and related migmatite
    NYYmug;1Interlayered metasedimentary rock and granitic, charnockitic, mangeritic, or syenitic gneiss
    NYYmug;2Interlayered metasedimentary rock and granitic, charnockitic, mangeritic, or syenitic gneiss
    NYYmug;3Interlayered metasedimentary rock and granitic, charnockitic, mangeritic, or syenitic gneiss
    NYYphg;1Pyroxene and/or hornblende granitic gneiss
    NYYphgs;1Charnockite, granitic and quartz syenite gneiss
    NYYphgs;2Charnockite, granitic and quartz syenite gneiss
    NYYphqs;1Charnockite, mangerite, pyroxene-quartz syenite gneiss
    NYYphqs;2Charnockite, mangerite, pyroxene-quartz syenite gneiss
    NYYps;1Mangerite, pyroxene-(hornblende) syenite gneiss
    NYYqpg;2Pyroxene-hornblende-quartz-plagioclase gneiss
    NYYqpg;3Pyroxene-hornblende-quartz-plagioclase gneiss
    NYYqt;1Quartzite, quartz-biotite schist and graphitic schist
    NYYqt;2Quartzite, quartz-biotite schist and graphitic schist
    NYYqtcs;3Garnet-biotite-quartz-feldspar gneiss
    NYYqtlg;3Garnet-bearing gneiss and interlayered quartzite
    NYYrg;3Rusty and gray biotite-quartz-feldspar gneiss
    NYYsc;3Sillimanite-cordierite-almandine-biotite-quartz-feldspar gneiss
    NYZf;3Fordham Gneiss, undivided
    NYZfa;3Fordham Gneiss (A member)
    NYZfb;3Fordham Gneiss (B member)
    NYZfc;3Fordham Gneiss (C and D member)
    NYZfe;3Fordham Gneiss (E member)
    NYZpg;3Poundridge Gneiss
    NYZy;3Yonkers Gneiss
    source
    An alphanumeric code (e.g. US001) that designates the source material used.

    type: character width: 6 output width: 8 (Source: Doug Stoeser)
    ValueDefinition
    NY001NYS Museum, NYS Geological Survey, NYS Museum Technology Center, 1999, 1:250,000 Bedrock geology of NYS, data is distributed in ARC/INFOŽ EXPORT format (with ".e00" extension) in 5 separate files based on printed map sheets, http://www.nysm.nysed.gov/gis.html.
    NY201Polygon edits made by C.L. Dicken based on the paper source map NY002.
    unit_age
    The geologic age from the source map used.

    type: character width: 60 output width: 60 (Source: Doug Stoeser)
    ValueDefinition
    Cambrian 
    Cambrian - Lower Ordovician 
    Cambrian - Middle Ordovician 
    Cambrian - Ordovician 
    Cambrian ? 
    Cambrian? 
    Early Cambrian - Lower Ordovician 
    Early Jurassic 
    Holocene 
    Jurassic - Lower Cretaceous 
    Lower Devonian 
    Lower Devonian - Silurian 
    Lower Mississippian 
    Lower Ordovician 
    Lower Pennsylvanian 
    Lower Silurian 
    Lower to Middle Devonian 
    Middle - Upper Devonian 
    Middle Devonian 
    Middle Ordovician 
    Middle Proterozoic 
    Ordovician 
    Ordovician? 
    Precambrian - Middle Proterozoic 
    Quaternary 
    Silurian 
    Upper Cretaceous 
    Upper Devonian 
    Upper Ordovician 
    Upper Ordovician - Lower Silurian 
    Upper Silurian 
    Upper Triassic 
    rocktype1
    The predominant lithology found in the formation.

    type: character width: 40 output width: 40 (Source: Johnson Lith Class 6.1a)
    ValueDefinition
    alluvium 
    amphibolite 
    anorthosite 
    argillite 
    arkose 
    carbonate 
    clay or mud 
    conglomerate 
    diabase 
    diorite 
    dolostone (dolomite) 
    felsic gneiss 
    gabbro 
    gneiss 
    granite 
    granitic gneiss 
    granodiorite 
    granulite 
    graywacke 
    greenstone 
    hornblendite 
    kimberlite 
    lamprophyre 
    lava flow 
    limestone 
    mafic gneiss 
    mafic metavolcanic rock 
    marble 
    melange 
    metasedimentary rock 
    metavolcanic rock 
    monzonite 
    mudstone 
    norite 
    paragneiss 
    pelitic schist 
    phyllite 
    pyroxenite 
    quartzite 
    sandstone 
    schist 
    serpentinite 
    shale 
    siltstone 
    slate 
    trachyte 
    rocktype2
    The second most predominant lithology in the formation.

    type: character width: 40 output width: 40 (Source: Johnson Lith Class 6.1)
    ValueDefinition
    amphibolite 
    anorthosite 
    argillite 
    augen gneiss 
    basalt 
    calc-silicate rock 
    chert 
    conglomerate 
    diabase 
    dolostone (dolomite) 
    felsic gneiss 
    glacial drift 
    gneiss 
    granitic gneiss 
    granulite 
    limestone 
    mafic gneiss 
    marble 
    melange 
    metasedimentary rock 
    migmatite 
    monzonite 
    mudstone 
    norite 
    paragneiss 
    pelitic schist 
    peridotite 
    phyllite 
    quartzite 
    sandstone 
    schist 
    shale 
    silt 
    siltstone 
    slate 
    trachyte 
    tuff 
    NY_geol.aat
    Arc attribute table for New York 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
    7shoreline or riverbank
    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
    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
    NY001NYS Museum, NYS Geological Survey, NYS Museum Technology Center, 1999, 1:250,000 Bedrock geology of NYS, data is distributed in ARC/INFOŽ EXPORT format (with ".e00" extension) in 5 separate files based on printed map sheets, http://www.nysm.nysed.gov/gis.html.
    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)
  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 CONUS documentation 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 derived from the USGS Digital Line Graph 1:100,000 quadrangle boundaries (Johnson and Leveritch, 1998) 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?
    ny geology (source 1 of 3)
    Museum, NYS, Survey, NYS Geological, and NYS Museum Technology Center, 1999, 1:250,000 Bedrock geology of NYS: New York State Museum, Albany, New York.

    Online Links:

    Type_of_Source_Media: vector
    Source_Scale_Denominator: 250000
    Source_Contribution: provided geology for state map
    state boundaries (source 2 of 3)
    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 3 of 3)
    Johnson, Bruce R., Geologic Map Unit Classification, ver. 6.1.

    Other_Citation_Details:
    Document has been modified and is included in Appendices 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 11)
    The purpose of this standardization is to allow all 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 State Geologic Map Compilation (SGMC) effort, with Stoeser coordinating work on the mainland states and Wilson coordinating work for Alaska and Hawaii.
    Date: 2005 (process 2 of 11)
    Downloaded geology from website and re-projected the coverage into the following:

    projection: Lambert Conformal Conic units: meters datum: NAD27 standard parallel 1: 33 0 0.000 standard parallel 2: 45 0 0.000 central meridian: -100 0 0.000 reference latitude: 0 0 0.000 false easting: 0.00000 false northing: 0.00000

    All attributes were deleted except material.

    (Note: Attributes associated with the generation of the coverages were not deleted. PAT - shape, area, perimeter, coverage#, and coverage-id AAT - shape, fnode#, tnode#, lnode#, rnode#, length, coverage#, and coverage-id)

    The values from material where then calculated into a new field called orig_label.
    Date: 2005 (process 3 of 11)
    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: 2005 (process 4 of 11)
    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 (renamed sgmc_label in PAT)

    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. (renamed source in PAT)

    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: 2005 (process 5 of 11)
    The New York coverage had to be cleaned due to numerous overlapping arcs. It was done using a dangle length of 0 and a fuzzy tolerance of 0.01.
    Date: 2005 (process 6 of 11)
    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: 2005 (process 7 of 11)
    After the merge was done, there were a few polygon that did not have any attributes joined to them. The following polygons had to be updated because the paper map source was used to compare the digital source polygons and there were a few differences.

    Polygon Oes - changed to OCs Ocs - changed to OCs Oinc - changed to Om Opi - deleted because polygon does not exist mg - changed to mb cp - changed to Cp ga - changed to a

    These polygon changes are attributed with a source code of NY201 to designate a changed from the original source material.
    Date: 2005 (process 8 of 11)
    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: 2005 (process 9 of 11)
    Arc-code was populated using the paper map source to tag the lines using the AAT line type data dictionary (see CONUS documentation in this report).

    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 CONUS documentation).

    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: 2005 (process 10 of 11)
    Once the .aat and the .pat were populated with the correct attributes, the coverage was exported as an .e00 file (NYgeol_lcc.e00).

    Then it was unprojected into geographic coordinates and exported again (NYgeol_dd.e00).
    Date: 2005 (process 11 of 11)
    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://www.nadm-geo.org/dmdt/index.html
  2. How accurate are the geographic locations?
    Accuracy of New York 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).

    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?

Who wrote the metadata?

Dates:
Last modified: 12-Sep-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/ny.faq.html>

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