Metadata:

  Identification_Information:

    Citation:

      Citation_Information:

        Originator: Douglas B. Stoeser

        Originator: Gregory N. Green

        Originator: Laurie C. Morath

        Originator: William D. Heran

        Originator: Anna B. Wilson

        Originator: David W. Moore

        Originator: Bradley S. Van Gosen

        Publication_Date: 2005

        Title:

          Preliminary Integrated Geologic Map Databases for the United States

          Central States: Montana, Wyoming, Colorado, New Mexico,

          Kansas, Oklahoma, Texas, Missouri, Arkansas, and Louisiana,

          North Dakota, South Dakota, Nebraska, and Iowa,

          - The State of North Dakota

        Edition: version 1.0

        Geospatial_Data_Presentation_Form: map

        Series_Information:

          Series_Name: U.S. Geological Survey Open-File Report

          Issue_Identification: 2005-1351

        Publication_Information:

          Publication_Place: Denver, CO

          Publisher: U.S. Geological Survey

        Online_Linkage: http://pubs.usgs.gov/of/2005/1351/

        Larger_Work_Citation:

          Citation_Information:

            Originator: Douglas B. Stoeser

            Originator: Gregory N. Green

            Originator: Laurie C. Morath

            Originator: William D. Heran

            Originator: Anna B. Wilson

            Originator: David W. Moore

            Originator: Bradley S. Van Gosen        

            Publication_Date: 2005

            Title:

              Preliminary Integrated Geologic Map Databases for the United

              States

              Central States: Montana, Wyoming, Colorado, New Mexico,

              Kansas, Oklahoma, Texas, Missouri, Arkansas, and Louisiana,

              North Dakota, South Dakota, Nebraska, and Iowa.

            Edition: version 1.0

            Geospatial_Data_Presentation_Form: map

            Series_Information:

              Series_Name: U.S. Geological Survey Open-File Report

              Issue_Identification: 1351

            Publication_Information:

              Publication_Place: Reston, VA

              Publisher: U.S. Geological Survey

            Online_Linkage: http://pubs.usgs.gov/of/2005/1351/

 

    Description:

      Abstract:

        This open-file report presents the results of the USGS Mineral Resources

        Program activity to compile a national-scale geologic map database to support

        national and regional level projects, including mineral resource and geo-

        environmental 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.

      Purpose:

        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.

      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).

 

    Time_Period_of_Content:

      Time_Period_Information:

        Single_Date/Time:

          Calendar_Date: 2005

      Currentness_Reference: publication date

 

    Status:

      Progress: Complete

      Maintenance_and_Update_Frequency: none planned

 

    Spatial_Domain:

      Bounding_Coordinates:

        West_Bounding_Coordinate: -104.1

        East_Bounding_Coordinate: -96.5

        North_Bounding_Coordinate: 49.1

        South_Bounding_Coordinate: 45.9

 

    Keywords:

      Theme:

        Theme_Keyword_Thesaurus: none

        Theme_Keyword: geology

      Place:

        Place_Keyword_Thesaurus: none

        Place_Keyword: USA

        Place_Keyword: North Dakota

 

      Theme:

        Theme_Keyword_Thesaurus: National Geologic Map Database Catalog themes,

          augmented

        Theme_Keyword: 3100 - Vector

        Theme_Keyword: 3110 - ESRI

        Theme_Keyword: 3112 - export

        Theme_Keyword: 1100 - Geology

        Theme_Keyword: 1101 - General

      Place:

        Place_Keyword_Thesaurus: Augmented FIPS 10-4 and FIPS 6-4, version 1.0

        Place_Keyword: US038 = North Dakota

    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.

 

    Point_of_Contact:

      Contact_Information:

        Contact_Person_Primary:

          Contact_Person: Gregory N. Green

          Contact_Organization: U.S. Geological Survey

        Contact_Address:

          Address_Type: mailing and physical address

          Address: MS 973, USGS, Denver Federal Center

          City: Denver

          State_or_Province: CO

          Postal_Code: 80225

          Country: USA

        Contact_Voice_Telephone: 303-236-5390

        Contact_Electronic_Mail_Address: ggreen@usgs.gov

 

    Data_Set_Credit:

      State Geologic Map Compilation (SGMC) activity of the National Surveys and

      Analysis rojects of the US Geological Survey Mineral Resources Program.

 

    Native_Data_Set_Environment:

      ARC/INFO version 8.3

      ArcView 3.2

  Data_Quality_Information:

    Attribute_Accuracy:

      Attribute_Accuracy_Report:

        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, 2002; available at the

        following website: http://geology.usgs.gov/dm).

    Logical_Consistency_Report:

      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.

    Completeness_Report:

      Bodies of water are classified as water, and the geologic units underlying them

      are not included in this coverage.

    Positional_Accuracy:

      Horizontal_Positional_Accuracy:

        Horizontal_Positional_Accuracy_Report:

          The geologic map was digitized from compilations ranging in scale from

          1:1,000,000 to 1:100,000 and is an accurate representation of the source maps.

          It is intended to be used at scales ranging from 1:1,000,000 to 1:500,000.

          Display at significantly larger scales may produce small errors in locations

          of contacts or faults relative to features contained in other data sets.

          Accuracy of North Dakota state boundary and those arcs intersecting it: The

          accuracy of the state boundary arcs is based on the 1:100000 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.

    Lineage:

      Source_Information:

        Source_Citation:

          Citation_Information:

            Originator: Ryan P. Waldkirch

            Originator: North Dakota Geological Survey -GIS Lab

            Publication_Date: 19970228

            Title: Geologic Map of North Dakota

            Geospatial_Data_Presentation_Form: map

            Series_Information:

              Series_Name: none

              Issue_Identification: Geology Map of North Dakota- GIS Lab

            Publication_Information:

              Publication_Place: Bismark, North Dakota, USA

              Publisher: North Dakota Geological Survey

            Online_Linkage: contact distributor

        Source_Scale_Denominator: 500000

        Type_of_Source_Media: ftp transfer

        Source_Time_Period_of_Content:

          Time_Period_Information:

            Single_Date/Time:

              Calendar_Date: 19970228

          Source_Currentness_Reference: publication date

        Source_Citation_Abbreviation: ND001

        Source_Contribution: A digital representation of the Geological map of North

          Dakota

 

      Source_Information:

        Source_Citation:

          Citation_Information:

            Originator: Bruce R. Johnson

            Title: 1:100,000 Scale State Boundaries of the Conterminous United States

            Geospatial_Data_Presentation_Form: vector digital data

            Publication_Date: unpublished material

        Source_Scale_Denominator: 100,000

        Type_of_Source_Media: online

        Source_Time_Period_of_Content:

          Time_Period_Information:

            Single_Date/Time:

              Calendar_Date: 199808

          Source_Currentness_Reference: unknown

        Source_Citation_Abbreviation: US001

        Source_Contribution: Provided linework for state boundaries

 

      Source_Information:

        Source_Citation:

          Citation_Information:

            Originator: Bruce R. Johnson

            Publication_Date: unpublished material

            Title: Geologic Map Unit Classification, ver. 6.1

            Geospatial_Data_Presentation_Form: document

        Type_of_Source_Media: online;  http://geology.usgs.gov/dm

        Source_Time_Period_of_Content:

          Time_Period_Information:

            Single_Date/Time:

              Calendar_Date: unknown

          Source_Currentness_Reference: unknown

        Source_Citation_Abbreviation: Johnson Lith Class 6.1

        Source_Contribution: Classification scheme used for lithology.

      Process_Step:

        Process_Description:

          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.

        Process_Date: 2003 - 2005

      Process_Step:

        Process_Description:

          G.N. Green obtained the digital Geologic map of North Dakota from Ryan P.

          Waldkirch at the North Dakota Geological Survey - GIS Lab, Bismark, North

          Dakota (http://gis1,state,nd.us.500k/geology/nd_bedrock.zip).

         

          Covers were projected into the following:

 

          projection:         Lambert Conformal Conic

          units:                              meters

          datum:                               NAD27

          standard parallel 1:            33 0 0.000

          standard parallel 2:            45 0 0.000

          central meridian:             -100 0 0.000

          reference latitude:              0 0 0.000

          false easting:                       0.000

          false northing:                      0.000

 

          All attributes were deleted except ABBREV

 

          (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 ABBREV where then calculated into a new field called

          ORIG_LABEL.

 

        Process_Date: 2005 02

      Process_Step:

        Process_Description:

          The following attributes were exported from Filemaker as a comma delimited

          file

 

          map_symbol1

          map_symbol2

          unit_link

          reference_id

          unit_age

          rocktype1

          rocktype2

 

          The attributes were then loaded into INFO with the following structures:

 

          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

        Process_Date: 20040404

      Process_Step:

        Process_Description:

          Once the .csv was loaded, it was joined in Arc/Info with the joinitem command.

          orig_label as the related item.

        Process_Date: 2005 03

      Process_Step:

        Process_Description:

          Once the .pat file was correct, the .aat file was addressed.  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

 

        Process_Date: 2005 03

      Process_Step:

        Process_Description:

          Arc-code was populated using the digital map source to tag the lines using the

          AAT line type data dictionary.

          Arc-para1 was populated when additional information was available such as

          upthrown side of a fault or angle of thrusting on a fault.

          Arc-para2 is a scratch field that is used mostly in Alaska.

          Source was populated with code that designates the source used for the

          linework; typically the paper map.

        Process_Date: 2005 03

 

  Spatial_Data_Organization_Information:

    Direct_Spatial_Reference_Method: Vector

  Spatial_Reference_Information:

    Horizontal_Coordinate_System_Definition:

      Planar:

        Map_Projection:

          Map_Projection_Name: Lambert Conformal Conic

          Lambert_Conformal_Conic:

            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_Coordinate_Information:

          Planar_Coordinate_Encoding_Method: coordinate pair

          Coordinate_Representation:

            Abscissa_Resolution: 0.01

            Ordinate_Resolution: 0.01

          Planar_Distance_Units: Meters

      Geodetic_Model:

        Horizontal_Datum_Name: North American Datum of 1927

        Ellipsoid_Name: Clarke 1866

        Semi-major_Axis: 6378206.4

        Denominator_of_Flattening_Ratio: 294.98

  Entity_and_Attribute_Information:

    Detailed_Description:

      Entity_Type:

        Entity_Type_Label: ia_geol.pat

        Entity_Type_Definition: Polygon attribute table for the North Dakota geologic

          coverage.

        Entity_Type_Definition_Source: ESRI

      Attribute:

        Attribute_Label: orig_label

        Attribute_Definition: unmodified map unit symbol from source cover.

        Attribute_Definition_Source: Doug Stoeser

        Attribute_Domain_Values:

          Enumerated_Domain:

            Enumerated_Domain_Value: Qor

            Enumerated_Domain_Value_Definition: Oahe Formation- River Sediment

            Enumerated_Domain_Value_Definition_Source: n/a

          Enumerated_Domain:

            Enumerated_Domain_Value: Qod

            Enumerated_Domain_Value_Definition: Oahe Formation- Windblown Sand

            Enumerated_Domain_Value_Definition_Source: n/a

          Enumerated_Domain:

            Enumerated_Domain_Value: Qop

            Enumerated_Domain_Value_Definition: Oahe Formation- Pond Sediment

            Enumerated_Domain_Value_Definition_Source: n/a

          Enumerated_Domain:

            Enumerated_Domain_Value: Qol

            Enumerated_Domain_Value_Definition: Oahe Formation- Windblown Silt

            Enumerated_Domain_Value_Definition_Source: n/a

          Enumerated_Domain:

            Enumerated_Domain_Value: QTou

            Enumerated_Domain_Value_Definition: Sand of the Oahe and Older Formations;

              Undivided

            Enumerated_Domain_Value_Definition_Source: n/a

          Enumerated_Domain:

            Enumerated_Domain_Value: Qcs

            Enumerated_Domain_Value_Definition: Coleharbor Formation- Shoreline Sediment

            Enumerated_Domain_Value_Definition_Source: n/a

          Enumerated_Domain:

            Enumerated_Domain_Value: Qcof

            Enumerated_Domain_Value_Definition:

             Coleharbor Formation- Offshore Sediment- Proglacial Lake Sediment

            Enumerated_Domain_Value_Definition_Source: n/a

          Enumerated_Domain:

            Enumerated_Domain_Value: Qcoh

            Enumerated_Domain_Value_Definition:

              Coleharbor Formation- Offshore Sediment- Ice-Walled Lake Sediment or

              Collapsed Supraglacial-Lake Sediment

            Enumerated_Domain_Value_Definition_Source: n/a

          Enumerated_Domain:

            Enumerated_Domain_Value: Qcoe

            Enumerated_Domain_Value_Definition:

             Coleharbor Formation- Offshore Sediment- Eroded Lake

            Enumerated_Domain_Value_Definition_Source: n/a

          Enumerated_Domain:

            Enumerated_Domain_Value: Qcrf

            Enumerated_Domain_Value_Definition:

              Coleharbor Formation- River Sediment- Uncollapsed River Sediment

            Enumerated_Domain_Value_Definition_Source: n/a

          Enumerated_Domain:

            Enumerated_Domain_Value: Qcrh

            Enumerated_Domain_Value_Definition:

             Coleharbor Formation- River Sediment- Collapsed River Sediment

            Enumerated_Domain_Value_Definition_Source: n/a

          Enumerated_Domain:

            Enumerated_Domain_Value: Qccg

            Enumerated_Domain_Value_Definition:

             Glacial Sediment- Collapsed Glacial Sediment; Gently undulating

            Enumerated_Domain_Value_Definition_Source: n/a

          Enumerated_Domain:

            Enumerated_Domain_Value: Qccu

            Enumerated_Domain_Value_Definition:

             Glacial Sediment- Collapsed Glacial Sediment; Undulating

            Enumerated_Domain_Value_Definition_Source: n/a

          Enumerated_Domain:

            Enumerated_Domain_Value: Qccr

            Enumerated_Domain_Value_Definition:

             Glacial Sediment- Collapsed Glacial Sediment; Rolling

            Enumerated_Domain_Value_Definition_Source: n/a

          Enumerated_Domain:

            Enumerated_Domain_Value: Qcch

            Enumerated_Domain_Value_Definition:

             Glacial Sediment- Collapsed Glacial Sediment; Hilly

            Enumerated_Domain_Value_Definition_Source: n/a

          Enumerated_Domain:

            Enumerated_Domain_Value: Qcdc

            Enumerated_Domain_Value_Definition:

             Glacial Sediment- Collapsed/Draped Transition Sediments

            Enumerated_Domain_Value_Definition_Source: n/a

          Enumerated_Domain:

            Enumerated_Domain_Value: Qcdg

            Enumerated_Domain_Value_Definition:

             Glacial Sediment- Glacial Sediment Draped Over Pre-existing Topography;

             over glacial

            Enumerated_Domain_Value_Definition_Source: n/a

          Enumerated_Domain:

            Enumerated_Domain_Value: Qcdn

            Enumerated_Domain_Value_Definition:

             Glacial Sediment- Glacial Sediment Draped Over Pre-existing Topography;

             over non-glacial

            Enumerated_Domain_Value_Definition_Source: n/a

          Enumerated_Domain:

            Enumerated_Domain_Value:  Qct

            Enumerated_Domain_Value_Definition: Glacial Sediment- Glacial Sediment on

              Thrust Masses

            Enumerated_Domain_Value_Definition_Source: n/a

          Enumerated_Domain:

            Enumerated_Domain_Value: Qcm

            Enumerated_Domain_Value_Definition:

             Glacial Sediment- Glacial Sediment on Subglacially Molded Surfaces

            Enumerated_Domain_Value_Definition_Source: n/a

          Enumerated_Domain:

            Enumerated_Domain_Value: Qcew

            Enumerated_Domain_Value_Definition: Glacial Sediment- Wave-Eroded Glacial

              Sediment

            Enumerated_Domain_Value_Definition_Source: n/a

          Enumerated_Domain:

            Enumerated_Domain_Value: Qcer

            Enumerated_Domain_Value_Definition: Glacial Sediment- River-Eroded Glacial

              Sediment

            Enumerated_Domain_Value_Definition_Source: n/a

          Enumerated_Domain:

            Enumerated_Domain_Value: Qces

            Enumerated_Domain_Value_Definition: Glacial Sediment- Slopwash-Eroded

              Glacial Sediment

            Enumerated_Domain_Value_Definition_Source: n/a

          Enumerated_Domain:

            Enumerated_Domain_Value: QTu

            Enumerated_Domain_Value_Definition: Quaternary and Upper Tertiary Sediment;

              Undivided

            Enumerated_Domain_Value_Definition_Source: n/a

          Enumerated_Domain:

            Enumerated_Domain_Value: Tm

            Enumerated_Domain_Value_Definition: Upper and Middle Tertiary Rock;

              Undivided

            Enumerated_Domain_Value_Definition_Source: n/a

          Enumerated_Domain:

            Enumerated_Domain_Value: Tw

            Enumerated_Domain_Value_Definition: White River Group

            Enumerated_Domain_Value_Definition_Source: n/a

          Enumerated_Domain:

            Enumerated_Domain_Value: Tg

            Enumerated_Domain_Value_Definition: Golden Valley Formation

            Enumerated_Domain_Value_Definition_Source: n/a

          Enumerated_Domain:

            Enumerated_Domain_Value: Ts

            Enumerated_Domain_Value_Definition: Sentinel Butte Formation

            Enumerated_Domain_Value_Definition_Source: n/a

          Enumerated_Domain:

            Enumerated_Domain_Value: Tb

            Enumerated_Domain_Value_Definition: Bullion Creek Formation

            Enumerated_Domain_Value_Definition_Source: n/a

          Enumerated_Domain:

            Enumerated_Domain_Value: Tp

            Enumerated_Domain_Value_Definition: Slope Formation

            Enumerated_Domain_Value_Definition_Source: n/a

          Enumerated_Domain:

            Enumerated_Domain_Value: Tc

            Enumerated_Domain_Value_Definition: Cannonball Formation

            Enumerated_Domain_Value_Definition_Source: n/a

          Enumerated_Domain:

            Enumerated_Domain_Value: Tl

            Enumerated_Domain_Value_Definition: Ludlow Formation

            Enumerated_Domain_Value_Definition_Source: n/a

          Enumerated_Domain:

            Enumerated_Domain_Value: Kh

            Enumerated_Domain_Value_Definition: Hell Creek Formation

            Enumerated_Domain_Value_Definition_Source: n/a

          Enumerated_Domain:

            Enumerated_Domain_Value: Kf

            Enumerated_Domain_Value_Definition: Fox Hills Formation

            Enumerated_Domain_Value_Definition_Source: n/a

          Enumerated_Domain:

            Enumerated_Domain_Value: Kp

            Enumerated_Domain_Value_Definition: Pierre Formation

            Enumerated_Domain_Value_Definition_Source: n/a

          Enumerated_Domain:

            Enumerated_Domain_Value: Kn

            Enumerated_Domain_Value_Definition: Niobrara and Carlile Formations;

              Undivided

            Enumerated_Domain_Value_Definition_Source: n/a

          Enumerated_Domain:

            Enumerated_Domain_Value: water

            Enumerated_Domain_Value_Definition: Surface Water

            Enumerated_Domain_Value_Definition_Source: n/a

      Attribute:

        Attribute_Label: sgmc_label

        Attribute_Definition: sgmc_label = orig_label + ;n where n= province number (n=0

          if no province)

        Attribute_Definition_Source: Doug Stoeser

        Attribute_Domain_Values:

          Enumerated_Domain:

            Enumerated_Domain_Value: n/a

            Enumerated_Domain_Value_Definition: n/a

            Enumerated_Domain_Value_Definition_Source: n/a

      Attribute:

        Attribute_Label: unit_link

        Attribute_Definition:

          composite map label = ST + sgmc_label

          This creates a unique identifier for every unit in the CONUS (continental

          United States) covers.

        Attribute_Definition_Source: Doug Stoeser

        Attribute_Domain_Values:

          Enumerated_Domain:

            Enumerated_Domain_Value: n/a

            Enumerated_Domain_Value_Definition: n/a

            Enumerated_Domain_Value_Definition_Source: n/a

      Attribute:

        Attribute_Label: source

        Attribute_Definition: reference to the source used

        Attribute_Definition_Source: Doug Stoeser

        Attribute_Domain_Values:

          Enumerated_Domain:

            Enumerated_Domain_Value: ND001

            Enumerated_Domain_Value_Definition: n/a

            Enumerated_Domain_Value_Definition_Source:

              Waldkirch, R.P., 1997, Clayton's Geologic Map of North Dakota: North

              Dakota Geological Survey,Bismark, North Dakota. scale 1:500,000.

      Attribute:

        Attribute_Label: unit_age

        Attribute_Definition: geologic age from the source map used.

        Attribute_Definition_Source: Doug Stoeser

        Attribute_Domain_Values:

          Enumerated_Domain:

            Enumerated_Domain_Value: Holocene

            Enumerated_Domain_Value_Definition: geologic age

            Enumerated_Domain_Value_Definition_Source: n/a

          Enumerated_Domain:

            Enumerated_Domain_Value: Pleistocene

            Enumerated_Domain_Value_Definition: geologic age

            Enumerated_Domain_Value_Definition_Source: n/a

          Enumerated_Domain:

            Enumerated_Domain_Value: Pliocene

            Enumerated_Domain_Value_Definition: geologic age

            Enumerated_Domain_Value_Definition_Source: n/a

          Enumerated_Domain:

            Enumerated_Domain_Value: Miocene

            Enumerated_Domain_Value_Definition: geologic age

            Enumerated_Domain_Value_Definition_Source: n/a

          Enumerated_Domain:

            Enumerated_Domain_Value: Oligocene

            Enumerated_Domain_Value_Definition: geologic age

            Enumerated_Domain_Value_Definition_Source: n/a

          Enumerated_Domain:

            Enumerated_Domain_Value: Eocene

            Enumerated_Domain_Value_Definition: geologic age

            Enumerated_Domain_Value_Definition_Source: n/a

          Enumerated_Domain:

            Enumerated_Domain_Value: Paleocene

            Enumerated_Domain_Value_Definition: geologic age

            Enumerated_Domain_Value_Definition_Source: n/a

          Enumerated_Domain:

            Enumerated_Domain_Value: Upper Cretaceous

            Enumerated_Domain_Value_Definition: geologic age

            Enumerated_Domain_Value_Definition_Source: n/a

          Enumerated_Domain:

            Enumerated_Domain_Value: Quaternary

            Enumerated_Domain_Value_Definition: geologic age

            Enumerated_Domain_Value_Definition_Source: n/a

          Enumerated_Domain:

            Enumerated_Domain_Value: Tertiary

            Enumerated_Domain_Value_Definition: geologic age

            Enumerated_Domain_Value_Definition_Source: n/a

      Attribute:

        Attribute_Label: rocktype2

        Attribute_Definition: The predominant lithology in the formation.

        Attribute_Definition_Source: unit classification

        Attribute_Domain_Values:

          Enumerated_Domain:

            Enumerated_Domain_Value: clay

            Enumerated_Domain_Value_Definition: n/a

            Enumerated_Domain_Value_Definition_Source: n/a

          Enumerated_Domain:

            Enumerated_Domain_Value: sand

            Enumerated_Domain_Value_Definition: n/a

            Enumerated_Domain_Value_Definition_Source: n/a

          Enumerated_Domain:

            Enumerated_Domain_Value: silt

            Enumerated_Domain_Value_Definition: n/a

            Enumerated_Domain_Value_Definition_Source: n/a

          Enumerated_Domain:

            Enumerated_Domain_Value: gravel

            Enumerated_Domain_Value_Definition: n/a

            Enumerated_Domain_Value_Definition_Source: n/a

          Enumerated_Domain:

            Enumerated_Domain_Value: sandstone

            Enumerated_Domain_Value_Definition: n/a

            Enumerated_Domain_Value_Definition_Source: n/a

          Enumerated_Domain:

            Enumerated_Domain_Value: shale

            Enumerated_Domain_Value_Definition: n/a

            Enumerated_Domain_Value_Definition_Source: n/a

          Enumerated_Domain:

            Enumerated_Domain_Value: water

            Enumerated_Domain_Value_Definition: n/a

            Enumerated_Domain_Value_Definition_Source: n/a

      Attribute:

        Attribute_Label: rocktype2

        Attribute_Definition: The second most predominant lithology found in the

          formation.

        Attribute_Definition_Source: unit classification

        Attribute_Domain_Values:

          Enumerated_Domain:

            Enumerated_Domain_Value: clay

            Enumerated_Domain_Value_Definition: n/a

            Enumerated_Domain_Value_Definition_Source: n/a

          Enumerated_Domain:

            Enumerated_Domain_Value: sand

            Enumerated_Domain_Value_Definition: n/a

            Enumerated_Domain_Value_Definition_Source: n/a

          Enumerated_Domain:

            Enumerated_Domain_Value: silt

            Enumerated_Domain_Value_Definition: n/a

            Enumerated_Domain_Value_Definition_Source: n/a

          Enumerated_Domain:

            Enumerated_Domain_Value: gravel

            Enumerated_Domain_Value_Definition: n/a

            Enumerated_Domain_Value_Definition_Source: n/a

          Enumerated_Domain:

            Enumerated_Domain_Value: siltstone

            Enumerated_Domain_Value_Definition: n/a

            Enumerated_Domain_Value_Definition_Source: n/a

          Enumerated_Domain:

            Enumerated_Domain_Value: shale

            Enumerated_Domain_Value_Definition: n/a

            Enumerated_Domain_Value_Definition_Source: n/a

          Enumerated_Domain:

            Enumerated_Domain_Value: limestone

            Enumerated_Domain_Value_Definition: n/a

            Enumerated_Domain_Value_Definition_Source: n/a

 

    Detailed_Description:

      Entity_Type:

        Entity_Type_Label: nd_geol.aat

        Entity_Type_Definition: Arc attribute table for North Dakota geologic coverage.

        Entity_Type_Definition_Source: ESRI

      Attribute:

        Attribute_Label: arc-code

        Attribute_Definition: Unique identifier for the line feature

        Attribute_Definition_Source: AAT data dictionary, Appendix H

        Attribute_Domain_Values:

          Enumerated_Domain:

            Enumerated_Domain_Value: 1

            Enumerated_Domain_Value_Definition: contact, location certain

            Enumerated_Domain_Value_Definition_Source: n/a

          Enumerated_Domain:

            Enumerated_Domain_Value: 7

            Enumerated_Domain_Value_Definition: shoreline or riverbank

            Enumerated_Domain_Value_Definition_Source: n/a

          Enumerated_Domain:

            Enumerated_Domain_Value: 124

            Enumerated_Domain_Value_Definition: state boundary

            Enumerated_Domain_Value_Definition_Source: n/a

          Enumerated_Domain:

            Enumerated_Domain_Value: 125

            Enumerated_Domain_Value_Definition: international boundary

            Enumerated_Domain_Value_Definition_Source: n/a

 

      Attribute:

        Attribute_Label: arc-para1

        Attribute_Definition: Used for "decorated" lines where additional information is

          needed.

        Attribute_Definition_Source: AAT data dictionary n/a

        Attribute_Domain_Values:

          Enumerated_Domain:

            Enumerated_Domain_Value: 0

            Enumerated_Domain_Value_Definition: no additional information

            Enumerated_Domain_Value_Definition_Source: n/a

        Attribute_Domain_Values:

          Enumerated_Domain:

            Enumerated_Domain_Value: 1

            Enumerated_Domain_Value_Definition: for normal faults, upthrown side is to

              the right

            Enumerated_Domain_Value_Definition_Source: n/a

      Attribute:

        Attribute_Label: arc-para2

        Attribute_Definition: "Scratch" field used mostly in Alaska.

        Attribute_Definition_Source: AAT data dictionary

        Attribute_Domain_Values:

          Enumerated_Domain:

            Enumerated_Domain_Value: 0

            Enumerated_Domain_Value_Definition: no additional information

            Enumerated_Domain_Value_Definition_Source: n/a

      Attribute:

        Attribute_Label: source

        Attribute_Definition: A coded reference citation indicating source material

          used.

        Attribute_Definition_Source: AAT data dictionary

        Attribute_Domain_Values:

          Enumerated_Domain:

            Enumerated_Domain_Value: ND001

            Enumerated_Domain_Value_Definition: n/a

            Enumerated_Domain_Value_Definition_Source:

              Waldkirch, R.P., 1997, Clayton's Geologic Map of North Dakota: North

              Dakota Geological Survey,Bismark, North Dakota. scale 1:500,000.

          Enumerated_Domain:

            Enumerated_Domain_Value: US001

            Enumerated_Domain_Value_Definition: n/a

            Enumerated_Domain_Value_Definition_Source:

              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)

    Overview_Description:

      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

  Distribution_Information:

    Distributor:

      Contact_Information:

        Contact_Organization_Primary:

          Contact_Organization: U.S. Geological Survey Information Services

        Contact_Address:

          Address_Type: mailing and physical address

          Address:

            U.S. Geological Survey

            507 National Center

          City: Reston

          State_or_Province: Virginia

          Postal_Code: 20192

          Country: USA

        Contact_Voice_Telephone:

          1-888-ASK-USGS

          or

          1-703-648-5953

        Contact_Electronic_Mail_Address: http://www.usgs.gov/contact/

    Distribution_Liability:

      This report is preliminary and has not been reviewed for conformity with

      U.S. Geological Survey (USGS) editorial standard nor with the North American

      stratigraphic codes.  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.

    Resource_Description: USGS OFR 2005-1351

    Standard_Order_Process:

      Digital_Form:

        Digital_Transfer_Information:

          Format_Name: ARC/INFO export

          Format_Version_Number: 8.3

          Format_Information_Content: Geologic units and structural features

          File_Decompression_Technique: gzip and tar

        Digital_Transfer_Option:

          Online_Option:

            Computer_Contact_Information:

              Network_Address:

                Network_Resource_Name: http://pubs.usgs.gov/of/2005/1351

      Fees: none

  Metadata_Reference_Information:

    Metadata_Date: 20050331

    Metadata_Review_Date: 2005 02

    Metadata_Contact:

      Contact_Information:

        Contact_Organization_Primary:

          Contact_Organization: U.S. Geological Survey

          Contact_Person: Gregory N. Green

        Contact_Address:

          Address_Type: mailing and physical address

          Address: MS 973, USGS, Denver Federal Center

          City: Denver

          State_or_Province: CO

          Postal_Code: 80225

          Country: USA

        Contact_Voice_Telephone: 1-303-236-5390

        Contact_Electronic_Mail_Address: ggreen@usgs.gov

    Metadata_Standard_Name: FGDC Content Standards for Digital Geospatial Metadata

    Metadata_Standard_Version: FGDC-STD-001-1998