Identification_Information:

  Citation:

    Citation_Information:

      Originator: Steve Ludington

      Originator: Barry C. Moring

      Originator: Robert J. Miller

      Originator: Kathryn S. Flynn

      Originator: Melanie J. Hopkins

      Publication_Date: 2005

      Title: Preliminary integrated databases for the United States - Western States: California, Nevada, Arizona, and Washington

      Edition: Version 1.0

      Geospatial_Data_Presentation_Form: vector digital data

      Series_Information:

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

        Issue_Identification: OFR 2005-1305

      Publication_Information:

        Publication_Place: Reston, Virginia, USA

        Publisher: U.S. Geological Survey

      Online_Linkage: http://pubs.usgs.gov/of/2005/1305

  Description:

    Abstract: These digital maps are a reformulation of previously published maps, primarily maps of states. The reformulation gives all the maps the same structure and format, allowing them to be combined into regional maps. The associated data tables have information about age and lithology of the map units, also in a standard format.

    Purpose: Provide digital maps and databases that, because of their common structure and format, allow creation of regional maps that depict age and lithology of map units.

    Supplemental_Information: The data is provided in decimal degrees and in Lambert Conformal Conic projection. The data is provided in both coverage and shapefile format, and includes supplemental attribute tables. No attempt was made to reconcile differences in mapping across state boundaries.

  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: -120.852539

      East_Bounding_Coordinate: -112.760960

      North_Bounding_Coordinate: 42.811891

      South_Bounding_Coordinate: 34.369863

  Keywords:

    Theme:

      Theme_Keyword_Thesaurus: none

      Theme_Keyword: geology

      Theme_Keyword: lithology

      Theme_Keyword: geologic age

      Theme_Keyword: maps

    Place:

      Place_Keyword_Thesaurus: none

      Place_Keyword: USA

      Place_Keyword: Nevada

  Access_Constraints: No warranty, expressed or implied, is made regarding the accuracy or utility of this data for general or scientific purposes, nor shall the act of distribution constitute any such warranty. The U.S. Geological Survey shall not be held liable for improper or incorrect use of this data.

  Use_Constraints:

    This database is not meant to be used at scales appreciably larger or smaller than the original scale. Any printed material utilizing these databases shall clearly indicate their source. If modifications to the data are made, this should be clearly indicated and described in print. Users specifically agree not to misrepresent these data, nor to imply that any changes they have made were approved by the U.S. Geological Survey.

    This database has been approved for release and publication by the Director of the U.S. Geological Survey. Although the database has been subjected to review and is substantially complete, the U.S. Geological Survey reserves the right to revise the data pursuant to further analysis and review. The database is released on the condition that neither the U.S. Geological Survey or the United States Government may be held liable for any damages resulting from its authorized or unauthorized use.

  Point_of_Contact:

    Contact_Information:

      Contact_Person_Primary:

        Contact_Person: Steve Ludington

        Contact_Organization: U.S. Geological Survey

      Contact_Position: geologist

      Contact_Address:

        Address_Type: mailing and physical address

        Address: U.S. Geological Survey, MS 901

        Address: 345 Middlefield Road

        City: Menlo Park

        State_or_Province: CA

        Postal_Code: 94025

        Country: USA

      Contact_Voice_Telephone: 650.329.5371

      Contact_Electronic_Mail_Address: slud@usgs.gov

  Data_Set_Credit: U.S. Geological Survey

  Security_Information:

  Native_Data_Set_Environment: Microsoft Windows XP Version 5.1 (Build 2600) Service Pack 2; ESRI ArcCatalog 9.0.0.535

Data_Quality_Information:

  Attribute_Accuracy:

    Attribute_Accuracy_Report: Map unit designations follow original compilation faithfully. Additional information about age and lithology was obtained from the paper map legend and geologic literature.

  Logical_Consistency_Report: All internal polygons were checked for closure. Overshoots and undershoots have been deleted or corrected as appropriate.

  Completeness_Report: The dataset contains all the map units and faults that were portrayed on the original printed map. Bodies of water are classified as water, and geologic units underlying them are not portrayed.

  Positional_Accuracy:

    Horizontal_Positional_Accuracy:

      Horizontal_Positional_Accuracy_Report: The geologic map was digitized from compilations ranging in scale from 1:100,000 to 1:1,000,000, and is an accurate representation of the source maps. It is intended to be used at scales equal to or smaller than 1:500,000. Display at significantly larger scales may produce error in location of contacts or faults relative to features contained in other data sets. The state boundary arcs are based on the 1:100,000 scale USGS topographic map series digital line graphs.

    Vertical_Positional_Accuracy:

      Vertical_Positional_Accuracy_Report: n/a

  Lineage:

    Source_Information:

      Source_Citation:

        Citation_Information:

          Originator: Raines, G.L.

          Originator: Connors, K.A.

          Originator: Moyer, L.A.

          Originator: Miller, R.J

          Publication_Date: 2003

          Title: Spatial digital database for the geologic map of Nevada

          Geospatial_Data_Presentation_Form: vector digital data

          Series_Information:

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

            Issue_Identification: OFR 03-066

          Publication_Information:

            Publication_Place: Reston, VA

            Publisher: U.S. Geological Survey

      Type_of_Source_Media: CD-ROM

      Source_Citation_Abbreviation: USGS OFR 03-066

    Source_Information:

      Source_Citation:

        Citation_Information:

          Originator: Bruce R. Johnson

          Publication_Date: Unpublished Material

          Title: State boundaries

          Geospatial_Data_Presentation_Form: vector digital data

      Source_Scale_Denominator: 100,000

      Type_of_Source_Media: online

      Source_Citation_Abbreviation: US001

      Source_Contribution: Provided linework for state boundaries

    Process_Step:

      Process_Description: Dataset copied.

      Process_Date: 2003

    Process_Step:

      Process_Description: Adjusted the perimeter of the coverage to match a reference dataset of state boundaries derived from 1:100,000 scale digital line graphs. This allows the map to be used together with adjoining state maps referenced to the same boundary data. Replaced a section of the state boundary that follows the Colorado River with a line from 1:100,000 scale digital line graph hydrographic files. The state boundaries have a source of US001 in the AAT.

      Process_Date: 2004

    Process_Step:

      Process_Description: Thirty-one arcs had their polarity flipped to conform to the right-hand rule (source in AAT = NV801)

      Process_Date: 2004

    Process_Step:

      Process_Description: One arc was assigned ARC-CODE = 4, to conform to the printed map (source in AAT = NV802)

      Process_Date: 2004

    Process_Step:

      Process_Description: Changed map unit to Ta3, and eliminated one polygon (SP_OBJ_ID=32012272), after Whitebread, D.H. and John D.A., 1992, USGS MF-1877-A (source in PAT = NV901)

      Process_Date: 2004

    Process_Step:

      Process_Description: Completed a dangling arc to create new polygon, to conform to printed map (source in PAT = NV902)

      Process_Date: 2004

    Process_Step:

      Process_Description: Updated the map unit label for 229 plutonic rock polygons, using age information developed in 1989, during preparation of the Nevada Mineral Resource Assessment (Nevada Bureau of Mines and Geology Open-File report OF96-2) (source in PAT = NV903)

      Process_Date: 2004

    Process_Step:

      Process_Description: Updated the map unit label for 33 plutonic rock polygons, using literature information, personal communications, and the National Radiometric Age Database (source in PAT = NV904)

      Process_Date: 2004

    Process_Step:

      Process_Description: To prepare a uniform AAT file, the following items were added: arc-code, arc-para1, and arc-para2. The last two are not used. Arc-code was populated, using the information in the original item, and inspection of the printed map. Then the original items in the AAT were deleted (LINECODE, FAULT_CONT, DWNTHR, SOURCE_ID, SPATIAL_OBJ_ID)

      Process_Date: 2005

    Process_Step:

      Process_Description: To prepare a uniform PAT file, the following items were added: ORIG_LABEL, SGMC_LABEL, UNIT_LINK, SOURCE, UNIT_AGE, ROCKTYPE1, and ROCKTYPE2. ORIG_LABEL was populated from the original item (PTYPE), SGMC_LABEL and UNIT_LINK were populated with information in the accompanying attribute table AZunits, UNIT_AGE was populated with information in the accompanying attribute table AZage, and ROCKTYPE1 and ROCKTYPE2 were populated with information in the accompanying attribute table AZlith. Then the original items in the PAT were deleted (MAP_UNIT, UNIT, SOURCE_ID, SPATIAL_OBJ_ID)

      Process_Date: 2005

    Process_Step:

      Process_Description: Metadata imported.

      Source_Used_Citation_Abbreviation: C:\DOCUME~1\Barry\LOCALS~1\Temp\xml18C.tmp

    Process_Step:

      Process_Description: Metadata imported.

      Source_Used_Citation_Abbreviation: C:\DOCUME~1\slud\LOCALS~1\Temp\xmlD.tmp

Spatial_Data_Organization_Information:

  Direct_Spatial_Reference_Method: Vector

  Point_and_Vector_Object_Information:

    SDTS_Terms_Description:

      SDTS_Point_and_Vector_Object_Type: Complete chain

      Point_and_Vector_Object_Count: 73287

    SDTS_Terms_Description:

      SDTS_Point_and_Vector_Object_Type: Label point

      Point_and_Vector_Object_Count: 21029

    SDTS_Terms_Description:

      SDTS_Point_and_Vector_Object_Type: GT-polygon composed of chains

      Point_and_Vector_Object_Count: 21029

    SDTS_Terms_Description:

      SDTS_Point_and_Vector_Object_Type: Point

      Point_and_Vector_Object_Count: 45

    SDTS_Terms_Description:

      SDTS_Point_and_Vector_Object_Type: String

      Point_and_Vector_Object_Count: 0

    SDTS_Terms_Description:

      SDTS_Point_and_Vector_Object_Type: String

      Point_and_Vector_Object_Count: 0

Spatial_Reference_Information:

  Horizontal_Coordinate_System_Definition:

    Planar:

      Map_Projection:

        Map_Projection_Name: Lambert Conformal Conic

        Lambert_Conformal_Conic:

          Standard_Parallel: 33.000000

          Standard_Parallel: 45.000000

          Longitude_of_Central_Meridian: -100.000000

          Latitude_of_Projection_Origin: 0.000000

          False_Easting: 0.000000

          False_Northing: 0.000000

      Planar_Coordinate_Information:

        Planar_Coordinate_Encoding_Method: coordinate pair

        Coordinate_Representation:

          Abscissa_Resolution: 0.002048

          Ordinate_Resolution: 0.002048

        Planar_Distance_Units: meters

    Geodetic_Model:

      Horizontal_Datum_Name: North American Datum of 1927

      Ellipsoid_Name: Clarke 1866

      Semi-major_Axis: 6378206.400000

      Denominator_of_Flattening_Ratio: 294.978698

Entity_and_Attribute_Information:

  Detailed_Description:

    Entity_Type:

      Entity_Type_Label: nvgeol_lcc.aat

    Attribute:

      Attribute_Label: FID

      Attribute_Definition: Internal feature number.

      Attribute_Definition_Source: ESRI

      Attribute_Domain_Values:

        Unrepresentable_Domain: Sequential unique whole numbers that are automatically generated.

    Attribute:

      Attribute_Label: Shape

      Attribute_Definition: Feature geometry.

      Attribute_Definition_Source: ESRI

      Attribute_Domain_Values:

        Unrepresentable_Domain: Coordinates defining the features.

    Attribute:

      Attribute_Label: FNODE#

      Attribute_Definition: Internal node number for the beginning of an arc (from-node).

      Attribute_Definition_Source: ESRI

      Attribute_Domain_Values:

        Unrepresentable_Domain: Whole numbers that are automatically generated.

    Attribute:

      Attribute_Label: TNODE#

      Attribute_Definition: Internal node number for the end of an arc (to-node).

      Attribute_Definition_Source: ESRI

      Attribute_Domain_Values:

        Unrepresentable_Domain: Whole numbers that are automatically generated.

    Attribute:

      Attribute_Label: LPOLY#

      Attribute_Definition: Internal node number for the left polygon.

      Attribute_Definition_Source: ESRI

      Attribute_Domain_Values:

        Unrepresentable_Domain: Whole numbers that are automatically generated.

    Attribute:

      Attribute_Label: RPOLY#

      Attribute_Definition: Internal node number for the right polygon.

      Attribute_Definition_Source: ESRI

      Attribute_Domain_Values:

        Unrepresentable_Domain: Whole numbers that are automatically generated.

    Attribute:

      Attribute_Label: LENGTH

      Attribute_Definition: Length of feature in internal units.

      Attribute_Definition_Source: ESRI

      Attribute_Domain_Values:

        Unrepresentable_Domain: Positive real numbers that are automatically generated.

    Attribute:

      Attribute_Label: NVGEOL_LCC#

      Attribute_Definition: Internal feature number.

      Attribute_Definition_Source: ESRI

      Attribute_Domain_Values:

        Unrepresentable_Domain: Sequential unique whole numbers that are automatically generated.

    Attribute:

      Attribute_Label: NVGEOL_LCC-ID

      Attribute_Definition: User-defined feature number.

      Attribute_Definition_Source: ESRI

    Attribute:

      Attribute_Label: ARC-CODE

      Attribute_Definition: unique identifier for line features

      Attribute_Domain_Values:

        Enumerated_Domain:

          Enumerated_Domain_Value: 1

          Enumerated_Domain_Value_Definition: Contact, location certain

        Enumerated_Domain:

          Enumerated_Domain_Value: 2

          Enumerated_Domain_Value_Definition: Contact, location approximate

        Enumerated_Domain:

          Enumerated_Domain_Value: 4

          Enumerated_Domain_Value_Definition: Normal fault, location certain

        Enumerated_Domain:

          Enumerated_Domain_Value: 5

          Enumerated_Domain_Value_Definition: Normal fault, location approximate

        Enumerated_Domain:

          Enumerated_Domain_Value: 7

          Enumerated_Domain_Value_Definition: Shoreline or riverbank

        Enumerated_Domain:

          Enumerated_Domain_Value: 8

          Enumerated_Domain_Value_Definition: Internal contact

        Enumerated_Domain:

          Enumerated_Domain_Value: 10

          Enumerated_Domain_Value_Definition: Thrust fault, location certain

        Enumerated_Domain:

          Enumerated_Domain_Value: 11

          Enumerated_Domain_Value_Definition: Thrust fault, location approximate

        Enumerated_Domain:

          Enumerated_Domain_Value: 30

          Enumerated_Domain_Value_Definition: Fault, sense of displacement unknown or undefined, location certain

        Enumerated_Domain:

          Enumerated_Domain_Value: 31

          Enumerated_Domain_Value_Definition: Fault, sense of displacement unknown or undefined, location approximate

        Enumerated_Domain:

          Enumerated_Domain_Value: 32

          Enumerated_Domain_Value_Definition: Fault, sense of displacement unknown or undefined, location inferred or queried

        Enumerated_Domain:

          Enumerated_Domain_Value: 52

          Enumerated_Domain_Value_Definition: Normal fault, concealed

        Enumerated_Domain:

          Enumerated_Domain_Value: 53

          Enumerated_Domain_Value_Definition: Thrust fault, concealed

        Enumerated_Domain:

          Enumerated_Domain_Value: 57

          Enumerated_Domain_Value_Definition: Right lateral fault, concealed

        Enumerated_Domain:

          Enumerated_Domain_Value: 58

          Enumerated_Domain_Value_Definition: Left lateral fault, concealed

        Enumerated_Domain:

          Enumerated_Domain_Value: 87

          Enumerated_Domain_Value_Definition: Right lateral fault, location certain

        Enumerated_Domain:

          Enumerated_Domain_Value: 88

          Enumerated_Domain_Value_Definition: Right lateral fault, location approximate

        Enumerated_Domain:

          Enumerated_Domain_Value: 89

          Enumerated_Domain_Value_Definition: Right lateral fault, location inferred or queried

        Enumerated_Domain:

          Enumerated_Domain_Value: 90

          Enumerated_Domain_Value_Definition: Left lateral fault, location certain

        Enumerated_Domain:

          Enumerated_Domain_Value: 91

          Enumerated_Domain_Value_Definition: Left lateral fault, location approximate

        Enumerated_Domain:

          Enumerated_Domain_Value: 92

          Enumerated_Domain_Value_Definition: Left lateral fault, location inferred or queried

        Enumerated_Domain:

          Enumerated_Domain_Value: 100

          Enumerated_Domain_Value_Definition: Fault, sense of displacement unknown, concealed

        Enumerated_Domain:

          Enumerated_Domain_Value: 109

          Enumerated_Domain_Value_Definition: Detachment fault, location certain

        Enumerated_Domain:

          Enumerated_Domain_Value: 113

          Enumerated_Domain_Value_Definition: Strike-slip fault, motion unknown, location certain

        Enumerated_Domain:

          Enumerated_Domain_Value: 114

          Enumerated_Domain_Value_Definition: Strike-slip fault, motion unknown, location approximate

        Enumerated_Domain:

          Enumerated_Domain_Value: 115

          Enumerated_Domain_Value_Definition: Strike-slip fault, motion unknown, location inferred

        Enumerated_Domain:

          Enumerated_Domain_Value: 116

          Enumerated_Domain_Value_Definition: Strike-slip fault, motion unknown, location concealed

        Enumerated_Domain:

          Enumerated_Domain_Value: 124

          Enumerated_Domain_Value_Definition: State boundary

        Enumerated_Domain:

          Enumerated_Domain_Value: 125

          Enumerated_Domain_Value_Definition: International boundary

        Enumerated_Domain:

          Enumerated_Domain_Value: 129

          Enumerated_Domain_Value_Definition: Playa shoreline

    Attribute:

      Attribute_Label: ARC-PARA1

      Attribute_Definition: additional spatial information about structures; not used

    Attribute:

      Attribute_Label: ARC-PARA2

      Attribute_Definition: available scratch field; not used

    Attribute:

      Attribute_Label: SOURCE

      Attribute_Definition: a coded reference citation indicating source used

      Attribute_Definition_Source: Steve Ludington

      Attribute_Domain_Values:

        Enumerated_Domain:

          Enumerated_Domain_Value: NV001

          Enumerated_Domain_Value_Definition: from original coverage

        Enumerated_Domain:

          Enumerated_Domain_Value: NV801

          Enumerated_Domain_Value_Definition: flipped arc polarity to conform to right-hand rule

        Enumerated_Domain:

          Enumerated_Domain_Value: NV802

          Enumerated_Domain_Value_Definition: changed ARC-CODE to 4 to conform to printed map

        Enumerated_Domain:

          Enumerated_Domain_Value: US001

          Enumerated_Domain_Value_Definition: state boundary

  Detailed_Description:

    Entity_Type:

      Entity_Type_Label: nvgeol_lcc.pat

      Entity_Type_Definition: polygon attribute table

      Entity_Type_Definition_Source: ESRI

    Attribute:

      Attribute_Label: FID

      Attribute_Definition: Internal feature number.

      Attribute_Definition_Source: ESRI

      Attribute_Domain_Values:

        Unrepresentable_Domain: Sequential unique whole numbers that are automatically generated.

    Attribute:

      Attribute_Label: Shape

      Attribute_Definition: Feature geometry.

      Attribute_Definition_Source: ESRI

      Attribute_Domain_Values:

        Unrepresentable_Domain: Coordinates defining the features.

    Attribute:

      Attribute_Label: AREA

      Attribute_Definition: Area of feature in internal units squared.

      Attribute_Definition_Source: ESRI

      Attribute_Domain_Values:

        Unrepresentable_Domain: Positive real numbers that are automatically generated.

    Attribute:

      Attribute_Label: PERIMETER

      Attribute_Definition: Perimeter of feature in internal units.

      Attribute_Definition_Source: ESRI

      Attribute_Domain_Values:

        Unrepresentable_Domain: Positive real numbers that are automatically generated.

    Attribute:

      Attribute_Label: NVGEOL_LCC#

      Attribute_Definition: Internal feature number.

      Attribute_Definition_Source: ESRI

      Attribute_Domain_Values:

        Unrepresentable_Domain: Sequential unique whole numbers that are automatically generated.

    Attribute:

      Attribute_Label: NVGEOL_LCC-ID

      Attribute_Definition: User-defined feature number.

      Attribute_Definition_Source: ESRI

    Attribute:

      Attribute_Label: ORIG_LABEL

      Attribute_Definition: unmodified map unit symbol from source coverage

      Attribute_Domain_Values:

        Codeset_Domain:

          Codeset_Name: NVunits

          Codeset_Source: Accompanying attribute table in OFR 2005-1305. View by opening .csv file in Excel

    Attribute:

      Attribute_Label: SGMC_LABEL

      Attribute_Definition: orig_label + ;n, where n is a province number (0 if no provinces)

      Attribute_Definition_Source: Steve Ludington

      Attribute_Domain_Values:

        Codeset_Domain:

          Codeset_Name: NVunits

          Codeset_Source: Accompanying attribute table in OFR 2005-1305. View by opening .csv file in Excel

    Attribute:

      Attribute_Label: UNIT_LINK

      Attribute_Definition: sgmc_label, preceded by 2-letter state abbreviation); provides a unique identifier

      Attribute_Definition_Source: Steve Ludington

      Attribute_Domain_Values:

        Codeset_Domain:

          Codeset_Name: NVunits

          Codeset_Source: Accompanying attribute table in OFR 2005-1305. View by opening .csv file in Excel

    Attribute:

      Attribute_Label: SOURCE

      Attribute_Definition: a coded reference citation indicating source used

      Attribute_Definition_Source: Steve Ludington

      Attribute_Domain_Values:

        Enumerated_Domain:

          Enumerated_Domain_Value: NV001

          Enumerated_Domain_Value_Definition: from original source coverage

      Attribute_Domain_Values:

        Enumerated_Domain:

          Enumerated_Domain_Value: NV901

          Enumerated_Domain_Value_Definition: resketched according to Whitebread & John, 1992, USGS MF-1877-A; changed label to Ta3

        Enumerated_Domain:

          Enumerated_Domain_Value: NV902

          Enumerated_Domain_Value_Definition: completed a dangling arc to create an additional polygon

        Enumerated_Domain:

          Enumerated_Domain_Value: NV903

          Enumerated_Domain_Value_Definition: changed unit label to reflect age information developed in 1989 for Nevada Mineral Resource Assessment (NBMG OF96-2

        Enumerated_Domain:

          Enumerated_Domain_Value: NV904

          Enumerated_Domain_Value_Definition: changed unit labels to correspond to geologic age information developed for this study, using personal knowledge, literature, and National Radiometric Age Database

    Attribute:

      Attribute_Label: UNIT_AGE

      Attribute_Definition: free-form field best representing geologic age of unit

      Attribute_Definition_Source: Steve Ludington

      Attribute_Domain_Values:

        Codeset_Domain:

          Codeset_Name: NVage

          Codeset_Source: Accompanying attribute table in OFR 2005-1305. View by opening .csv file in Excel

    Attribute:

      Attribute_Label: ROCKTYPE1

      Attribute_Definition: most abundant lithology in map unit

      Attribute_Definition_Source: Steve Ludington

      Attribute_Domain_Values:

        Codeset_Domain:

          Codeset_Name: NVunits

          Codeset_Source: Accompanying attribute table in OFR 2005-1305. View by opening .csv file in Excel

    Attribute:

      Attribute_Label: ROCKTYPE2

      Attribute_Definition: second most abundant lithology in map unit

      Attribute_Definition_Source: Steve Ludington

      Attribute_Domain_Values:

        Codeset_Domain:

          Codeset_Name: NVunits

          Codeset_Source: Accompanying attribute table in OFR 2005-1305. View by opening .csv file in Excel

  Overview_Description:

Distribution_Information:

  Distributor:

    Contact_Information:

      Contact_Organization_Primary:

        Contact_Organization: U.S. Geological Survey Information Services

      Contact_Address:

        Address_Type: mailing address

        Address: U.S. Geological Survey, 507 National Center

        City: Reston

        State_or_Province: VA

        Postal_Code: 20192

        Country: USA

      Contact_Voice_Telephone: 1.800.ASK.USGS

      Contact_Voice_Telephone: 703.648.5953

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

  Resource_Description: U.S. Geological Survey Open-File Report OFR 2005-1305

  Distribution_Liability: This report is preliminary and has not been reviewed for conformity with U.S. Geological Survey editorial standards, nor with the North American Stratigraphic Code. Any use of trade, product, or firm names is for descriptive purposes only and does not imply endorsement by the U.S. Geological Survey. Although these data have been used by the U.S. Geological Survey, and imported into appropriate software, no warranty, express or implied, is made by the U.S. Geological Survey as to how successfully or accurately the data can be imported into specific application software running on specific hardware platforms. The fact of distribution shall not constitute any such warranty, and no responsibility is assumed by the U.S. Geological Survey in connection therewith. This data is not meant to be used or displayed at scales substantially larger than 1:500,000.

  Standard_Order_Process:

    Digital_Form:

      Digital_Transfer_Information:

        Format_Name: ArcInfo Export

        Format_Version_Number: 8.3

        Format_Information_Content: geologic units and structural features

        Transfer_Size: 21.093

      Digital_Transfer_Option:

        Online_Option:

          Computer_Contact_Information:

            Network_Address:

              Network_Resource_Name: http://pubs.usgs.gov/of/2005/1305

    Fees: none

Metadata_Reference_Information:

  Metadata_Date: 20050816

  Metadata_Contact:

    Contact_Information:

      Contact_Organization_Primary:

        Contact_Organization: U.S. Geological Survey

        Contact_Person: Steve Ludington

      Contact_Position: geologist

      Contact_Address:

        Address_Type: mailing address

        Address: USGS, MS 901

        Address: 345 Middlefield Road

        City: Menlo Park

        State_or_Province: CA

        Postal_Code: 94025

        Country: USA

      Contact_Voice_Telephone: 650.329.5371

      Contact_Electronic_Mail_Address: slud@usgs.gov

  Metadata_Standard_Name: FGDC Content Standards for Digital Geospatial Metadata

  Metadata_Standard_Version: FGDC-STD-001-1998

  Metadata_Time_Convention: local time

  Metadata_Extensions:

    Online_Linkage: http://www.esri.com/metadata/esriprof80.html

    Profile_Name: ESRI Metadata Profile