Identification_Information:
  Citation:
    Citation_Information:
      Originator: Lorre A. Moyer
      Publication_Date: 1999
      Title: mrds (ArcView shapefile), mrds_crypto (ArcInfo point coverage)
      Geospatial_Data_Presentation_Form: vector digital data
      Series_Information:
        Series_Name: Open-file Report
        Issue_Identification: 99-523
      Publication_Information:
        Publication_Place: Menlo Park, CA
        Publisher: U.S. Geological Survey
      Online_Linkage:
        http://geopubs.wr.usgs.gov/openfile/of99-523/
        ftp://geopubs.wr.usgs.gov/pub/openfile/of99-523
      Larger_Work_Citation:
        Citation_Information:
          Title: Moyer, Lorre A., 1999, Preliminary digital map of cryptocrystalline occurrences in northern Nevada: U. S. Geological Survey Open-File Report 99-523, 38p.
  Description:
    Abstract: A point coverage of northern Nevada cryptocrystalline occurrences extracted from the U.S. Geological Survey's Minerals Resource Data System (MRDS) and converted into an ArcView shapefile.
    Purpose: The MRDS point theme was used with a polygon theme shapefile derived from Nevada rockhound guides to create a preliminary map of northern Nevada cryptocrystalline occurrences.  The original intent was to identify potential sources of raw materials for tools used by indigenous people of northern Nevada.  The dataset was created to assist governmental agencies and others in making resource management decisions through the use of geographic information systems (GIS).  Uses of the spatial data set include, but are not limited to natural, and cultural resource management, interdisciplinary activities, recreational rockhounding, and gold exploration.
    Supplemental_Information: The primary focus of this data was potential raw material sites for tools made by native northern Nevadans.  Archaeologists routinely rely on pottery and projectile points for dating techniques.  Since basketry was used most in the nomadic lifestyle of the native northern Nevadans, the major dating device for the Great Basin archaeological sites has been the projectile point. Preliminary investigation of the types of raw materials used for tool making by indigenous people of Northern Nevada led to decisions regarding the kind of occurrences considered to be cryptocrystalline for this data set.
  Time_Period_of_Content:
    Time_Period_Information:
      Single_Date/Time:
        Calendar_Date: 1995
        Time_of_Day: Unknown
    Currentness_Reference: MRDS Version
  Status:
    Progress: Complete
    Maintenance_and_Update_Frequency: None planned
  Spatial_Domain:
    Bounding_Coordinates:
      West_Bounding_Coordinate: -179.4275
      East_Bounding_Coordinate: -173.89616
      North_Bounding_Coordinate: 41.95434
      South_Bounding_Coordinate: 39.71288
  Keywords:
    Theme:
      Theme_Keyword_Thesaurus: none
      Theme_Keyword: chalcedony
      Theme_Keyword: opal
      Theme_Keyword: jasper
      Theme_Keyword: chert
      Theme_Keyword: silica
    Place:
      Place_Keyword_Thesaurus: none
      Place_Keyword: Northern Nevada
  Access_Constraints: None
  Use_Constraints: For use at 1:750,000 scale. Spatial data accuracy varies greatly due to the wide variety of data sources used in creating the MRDS database. For some purposes a field check may be advisable.
  Point_of_Contact:
    Contact_Information:
      Contact_Person_Primary:
        Contact_Person: Lorre A. Moyer
        Contact_Organization: U.S. Geological Survey, Reno Field Office
      Contact_Position: Geologist
      Contact_Address:
        Address_Type: mailing and physical address
        Address: USGS C/O Mackay School of Mines MS 176, University of Nevada
        City: Reno
        State_or_Province: Nevada
        Postal_Code: 89557
        Country: USA
      Contact_Voice_Telephone: 775-784-5552
      Contact_Facsimile_Telephone: 775-784-5079
      Contact_Electronic_Mail_Address: lorre@usgs.gov
      Hours_of_Service: 800-1600 PT
  Data_Set_Credit: Katherine Connors and Gary Raines of the USGS, and Ron Hess of the Nevada Bureau of Mines and Geology assisted in the direction and creation of this data set.
  Security_Information:
    Security_Classification_System: none
    Security_Classification: Unclassified
    Security_Handling_Description: none
  Native_Data_Set_Environment: Arcview 3.1 shapefile format
  Cross_Reference:
    Citation_Information:
      Originator: Moyer, L.A.
      Publication_Date: 1999
      Title: Preliminary digital map of cryptocrystalline occurrences in Northern Nevada
      Geospatial_Data_Presentation_Form: map
      Series_Information:
        Series_Name: OF
        Issue_Identification: 99-523
      Publication_Information:
        Publication_Place: Spokane, WA
        Publisher: U.S. Geological Survey
      Online_Linkage:
        http://geopubs.wr.usgs.gov/openfile/of99-523/index.html
        ftp://geopubs.wr.usgs.gov/pub/openfile/of99-523
Data_Quality_Information:
  Attribute_Accuracy:
    Attribute_Accuracy_Report: MRDS data came from many different sources and there has been no consistent program to verify the accuracy of the information.  The original MRDS database field ACC was intended to indicate the positional accuracy of each record, and was entered by the person who created or updated the record.
  Logical_Consistency_Report: Point topology.  These data are believed to be logically consistent, although no formal tests were performed.  Because  of multiple sources, data characteristics may not be consistent.
  Completeness_Report: The area of interest was within the northern Nevada state boundary and bounded in the south by 39 degrees north latitude. The cryptocrystalline materials that the comprise the data set are chalcedony, opal, jasper, chert, and silica.
  Positional_Accuracy:
    Horizontal_Positional_Accuracy:
      Horizontal_Positional_Accuracy_Report: Positional accuracy is variable among the MRDS records in the database because the data came from multiple sources and no consistent program has been implemented to verify the accuracy of the positional information.  The database field ACC contains an indicator of the accuracy of the information in the record, which generally focuses on the positional accuracy but may in some cases refer to attributes as well.
  Lineage:
    Source_Information:
      Source_Citation:
        Citation_Information:
          Originator: U.S. Geological Survey database
          Publication_Date: 1995
          Title: Minerals Resources Data System (MRDS)
          Publication_Information:
            Publication_Place: Reston, VA
            Publisher: U.S. Geological Survey
      Type_of_Source_Media: digital database
      Source_Time_Period_of_Content:
        Time_Period_Information:
          Single_Date/Time:
            Calendar_Date: 1995
        Source_Currentness_Reference: 1995
      Source_Citation_Abbreviation: MRDS, 1995
      Source_Contribution: Cryptocrystalline site locations
    Process_Step:
      Process_Description: Several search strategies were designed to capture records from the MRDS database that represented cryptocrystalline occurrences.  The following searches of MRDS fields were successful using the MRDS subsearch editor:  NonOre Minerals CONTAINS opal@, chalcedon@, chert, jasper@ ; Ore Minerals CONTAINS opal@, chalcedon@, Vol@; CommodPresSort CONTAINS gem@, sil@; Host Rock Type CONTAINS opal@, chert@, sil@; DepDescComments CONTAINS crypto@; GeologyComments CONTAINS crypto@, vitr@; USGSModelfirst CONTAINS hot spring@.  Obsidian searches of MRDS provided no additional records.  The MRDS records meeting the search criteria (128) were converted to DBF files, brought into an ARC/INFO point coverage, projected to UTM Zone 11, and converted to an ArcView shapefile.
      Source_Used_Citation_Abbreviation: MRDS, 1995
      Process_Date: 1999
      Source_Produced_Citation_Abbreviation: Moyer, 1995
      Process_Contact:
        Contact_Information:
          Contact_Person_Primary:
            Contact_Person: Lorre A. Moyer
            Contact_Organization: U.S. Geological Survey, Reno Field Office
          Contact_Position: Geologist
          Contact_Address:
            Address_Type: mailing and physical address
            Address: USGS C/O Mackay School of Mines MS 176, University of Nevada
            City: Reno
            State_or_Province: Nevada
            Postal_Code: 89557
            Country: USA
          Contact_Voice_Telephone: 775-784-5552
          Contact_Facsimile_Telephone: 775-784-5079
          Contact_Electronic_Mail_Address: lorre@usgs.gov
          Hours_of_Service: 800-1600 PT
  Cloud_Cover: Unknown
Spatial_Data_Organization_Information:
  Direct_Spatial_Reference_Method: Vector
  Point_and_Vector_Object_Information:
    SDTS_Terms_Description:
      SDTS_Point_and_Vector_Object_Type: Entity point
      Point_and_Vector_Object_Count: 128
Spatial_Reference_Information:
  Horizontal_Coordinate_System_Definition:
    Planar:
      Grid_Coordinate_System:
        Grid_Coordinate_System_Name: Universal Transverse Mercator
        Universal_Transverse_Mercator:
          UTM_Zone_Number: 11
          Transverse_Mercator:
            Scale_Factor_at_Central_Meridian: 0.9996
            Longitude_of_Central_Meridian: -177.0000000001
            Latitude_of_Projection_Origin: 0
            False_Easting: 500000
            False_Northing: 0
      Planar_Coordinate_Information:
        Planar_Coordinate_Encoding_Method: row and column
        Coordinate_Representation:
          Abscissa_Resolution: 1
          Ordinate_Resolution: 1
        Planar_Distance_Units: m
    Geodetic_Model:
      Horizontal_Datum_Name: North American Datum of 1927
      Ellipsoid_Name: Clarke 1866
      Semi-major_Axis: 6378206
      Denominator_of_Flattening_Ratio: 294.9786982
Entity_and_Attribute_Information:
  Detailed_Description:
    Entity_Type:
      Entity_Type_Label: mrds.dbf
      Entity_Type_Definition: Shapefile attribute table
      Entity_Type_Definition_Source: MRDS,1995
    Attribute:
      Attribute_Label: FID
      Attribute_Definition: Feature ID
      Attribute_Definition_Source: Computed
      Attribute_Domain_Values:
        Enumerated_Domain:
          Enumerated_Domain_Value: Sequential unique positive integer
          Enumerated_Domain_Value_Definition_Source: Computed
    Attribute:
      Attribute_Label: Shape
      Attribute_Definition: Point
    Attribute:
      Attribute_Label: AREA
    Attribute:
      Attribute_Label: PERIMETER
    Attribute:
      Attribute_Label: MRDS_CRYPT
      Attribute_Definition: Internal ID
      Attribute_Definition_Source: Computed
      Attribute_Domain_Values:
        Enumerated_Domain:
          Enumerated_Domain_Value: Sequential unique positive integer
          Enumerated_Domain_Value_Definition_Source: Computed
    Attribute:
      Attribute_Label: MRDS_CRYPT
      Attribute_Definition: Internal ID
      Attribute_Definition_Source: Computed
      Attribute_Domain_Values:
        Enumerated_Domain:
          Enumerated_Domain_Value: Sequential unique positive integer
          Enumerated_Domain_Value_Definition_Source: Computed
    Attribute:
      Attribute_Label: RECORD_NO
      Attribute_Definition: MRDS record number
      Attribute_Definition_Source: MRDS,1995
      Attribute_Domain_Values:
        Enumerated_Domain:
          Enumerated_Domain_Value: Alpha-numeric
          Enumerated_Domain_Value_Definition_Source: MRDS,1995
    Attribute:
      Attribute_Label: REPORTER
      Attribute_Definition: Reporter name
      Attribute_Definition_Source: MRDS,1995
      Attribute_Domain_Values:
        Enumerated_Domain:
          Enumerated_Domain_Value: Character
          Enumerated_Domain_Value_Definition_Source: MRDS,1995
    Attribute:
      Attribute_Label: REP_DATE
      Attribute_Definition: Report date
      Attribute_Definition_Source: MRDS,1995
      Attribute_Domain_Values:
        Enumerated_Domain:
          Enumerated_Domain_Value: Numerical
          Enumerated_Domain_Value_Definition_Source: MRDS,1995
    Attribute:
      Attribute_Label: REP_AFFIL
      Attribute_Definition: Reporter affiliation
      Attribute_Definition_Source: MRDS,1995
      Attribute_Domain_Values:
        Enumerated_Domain:
          Enumerated_Domain_Value: Character
          Enumerated_Domain_Value_Definition_Source: MRDS,1995
    Attribute:
      Attribute_Label: UPDATER
      Attribute_Definition: Updater
      Attribute_Definition_Source: MRDS,1995
      Attribute_Domain_Values:
        Enumerated_Domain:
          Enumerated_Domain_Value: Character
          Enumerated_Domain_Value_Definition_Source: MRDS,1995
    Attribute:
      Attribute_Label: UPD_DATE
      Attribute_Definition: Update date
      Attribute_Definition_Source: MRDS,1995
      Attribute_Domain_Values:
        Enumerated_Domain:
          Enumerated_Domain_Value: Numerical
          Enumerated_Domain_Value_Definition_Source: MRDS,1995
    Attribute:
      Attribute_Label: UPD_AFFIL
      Attribute_Definition: Updater affiliation
      Attribute_Definition_Source: MRDS,1995
      Attribute_Domain_Values:
        Enumerated_Domain:
          Enumerated_Domain_Value: Character
          Enumerated_Domain_Value_Definition_Source: MRDS,1995
    Attribute:
      Attribute_Label: SITE
      Attribute_Definition: Site name
      Attribute_Definition_Source: MRDS,1995
      Attribute_Domain_Values:
        Enumerated_Domain:
          Enumerated_Domain_Value: Character
          Enumerated_Domain_Value_Definition_Source: MRDS,1995
    Attribute:
      Attribute_Label: SYNONYM
      Attribute_Definition: Synonym site name
      Attribute_Definition_Source: MRDS,1995
      Attribute_Domain_Values:
        Enumerated_Domain:
          Enumerated_Domain_Value: Character
          Enumerated_Domain_Value_Definition_Source: MRDS,1995
    Attribute:
      Attribute_Label: DISTRICT
      Attribute_Definition: Mining district name
      Attribute_Definition_Source: MRDS,1995
      Attribute_Domain_Values:
        Enumerated_Domain:
          Enumerated_Domain_Value: Character
          Enumerated_Domain_Value_Definition_Source: MRDS,1995
    Attribute:
      Attribute_Label: REC_TYPE
      Attribute_Definition: Record type
      Attribute_Definition_Source: MRDS,1995
      Attribute_Domain_Values:
        Enumerated_Domain:
          Enumerated_Domain_Value: None
          Enumerated_Domain_Value_Definition_Source: MRDS,1995
    Attribute:
      Attribute_Label: COUNTY
      Attribute_Definition: County name
      Attribute_Definition_Source: MRDS,1995
      Attribute_Domain_Values:
        Enumerated_Domain:
          Enumerated_Domain_Value: Character
          Enumerated_Domain_Value_Definition_Source: MRDS,1995
    Attribute:
      Attribute_Label: STATE_CODE
      Attribute_Definition: State abbreviation
      Attribute_Definition_Source: MRDS,1995
      Attribute_Domain_Values:
        Enumerated_Domain:
          Enumerated_Domain_Value: Character
          Enumerated_Domain_Value_Definition_Source: MRDS,1995
    Attribute:
      Attribute_Label: COUNTRY_CD
      Attribute_Definition: Country abbreviation
      Attribute_Definition_Source: MRDS,1995
      Attribute_Domain_Values:
        Enumerated_Domain:
          Enumerated_Domain_Value: Character
          Enumerated_Domain_Value_Definition_Source: MRDS,1995
    Attribute:
      Attribute_Label: QUAD
      Attribute_Definition: Quadrangle name
      Attribute_Definition_Source: MRDS,1995
      Attribute_Domain_Values:
        Enumerated_Domain:
          Enumerated_Domain_Value: Alpha-numeric
          Enumerated_Domain_Value_Definition_Source: MRDS,1995
    Attribute:
      Attribute_Label: QUAD1
      Attribute_Definition: Quadrangle name
      Attribute_Definition_Source: MRDS,1995
      Attribute_Domain_Values:
        Enumerated_Domain:
          Enumerated_Domain_Value: Alpha-numeric
          Enumerated_Domain_Value_Definition_Source: MRDS,1995
    Attribute:
      Attribute_Label: LATITUDE
      Attribute_Definition: Latitude
      Attribute_Definition_Source: MRDS,1995
      Attribute_Domain_Values:
        Enumerated_Domain:
          Enumerated_Domain_Value: Alpha-numeric
          Enumerated_Domain_Value_Definition_Source: MRDS,1995
    Attribute:
      Attribute_Label: LONGITUDE
      Attribute_Definition: Longitude
      Attribute_Definition_Source: MRDS,1995
      Attribute_Domain_Values:
        Enumerated_Domain:
          Enumerated_Domain_Value: Alpha-numeric
          Enumerated_Domain_Value_Definition_Source: MRDS,1995
    Attribute:
      Attribute_Label: COMMODS
      Attribute_Definition: Commodity
      Attribute_Definition_Source: MRDS,1995
      Attribute_Domain_Values:
        Enumerated_Domain:
          Enumerated_Domain_Value: Character
          Enumerated_Domain_Value_Definition_Source: MRDS,1995
    Attribute:
      Attribute_Label: PROD
      Attribute_Definition: Production description
      Attribute_Definition_Source: MRDS,1995
      Attribute_Domain_Values:
        Enumerated_Domain:
          Enumerated_Domain_Value: Character
          Enumerated_Domain_Value_Definition_Source: MRDS,1995
    Attribute:
      Attribute_Label: STATUS
      Attribute_Definition: Status of site
      Attribute_Definition_Source: MRDS,1995
      Attribute_Domain_Values:
        Enumerated_Domain:
          Enumerated_Domain_Value: Character
          Enumerated_Domain_Value_Definition_Source: MRDS,1995
    Attribute:
      Attribute_Label: OWNER
      Attribute_Definition: Owner name
      Attribute_Definition_Source: MRDS,1995
      Attribute_Domain_Values:
        Enumerated_Domain:
          Enumerated_Domain_Value: Alpha-numeric
          Enumerated_Domain_Value_Definition_Source: MRDS,1995
    Attribute:
      Attribute_Label: OPERATOR
      Attribute_Definition: Operator name
      Attribute_Definition_Source: MRDS,1995
      Attribute_Domain_Values:
        Enumerated_Domain:
          Enumerated_Domain_Value: Alpha-numeric
          Enumerated_Domain_Value_Definition_Source: MRDS,1995
    Attribute:
      Attribute_Label: DEP_TYPE
      Attribute_Definition: Deposit type
      Attribute_Definition_Source: MRDS,1995
      Attribute_Domain_Values:
        Enumerated_Domain:
          Enumerated_Domain_Value: Character
          Enumerated_Domain_Value_Definition_Source: MRDS,1995
    Attribute:
      Attribute_Label: DEP_FORM
      Attribute_Definition: Deposit form
      Attribute_Definition_Source: MRDS,1995
      Attribute_Domain_Values:
        Enumerated_Domain:
          Enumerated_Domain_Value: Character
          Enumerated_Domain_Value_Definition_Source: MRDS,1995
    Attribute:
      Attribute_Label: DEP_SIZE
      Attribute_Definition: Deposit size
      Attribute_Definition_Source: MRDS,1995
      Attribute_Domain_Values:
        Enumerated_Domain:
          Enumerated_Domain_Value: Character
          Enumerated_Domain_Value_Definition_Source: MRDS,1995
    Attribute:
      Attribute_Label: SURF_UNDG
      Attribute_Definition: Surface or underground
      Attribute_Definition_Source: MRDS,1995
      Attribute_Domain_Values:
        Enumerated_Domain:
          Enumerated_Domain_Value: Character
          Enumerated_Domain_Value_Definition_Source: MRDS,1995
    Attribute:
      Attribute_Label: HR_TYPE
      Attribute_Definition: Host rock type
      Attribute_Definition_Source: MRDS,1995
      Attribute_Domain_Values:
        Enumerated_Domain:
          Enumerated_Domain_Value: Character
          Enumerated_Domain_Value_Definition_Source: MRDS,1995
    Attribute:
      Attribute_Label: HR_AGE
      Attribute_Definition: Host rock age
      Attribute_Definition_Source: MRDS,1995
      Attribute_Domain_Values:
        Enumerated_Domain:
          Enumerated_Domain_Value: Alpha-numeric
          Enumerated_Domain_Value_Definition_Source: MRDS,1995
    Attribute:
      Attribute_Label: AGE_OF_MIN
      Attribute_Definition: Age of mineralization
      Attribute_Definition_Source: MRDS,1995
      Attribute_Domain_Values:
        Enumerated_Domain:
          Enumerated_Domain_Value: Alpha-numeric
          Enumerated_Domain_Value_Definition_Source: MRDS,1995
    Attribute:
      Attribute_Label: IG_RK_TYPE
      Attribute_Definition: Igneous rock type
      Attribute_Definition_Source: MRDS,1995
      Attribute_Domain_Values:
        Enumerated_Domain:
          Enumerated_Domain_Value: Character
          Enumerated_Domain_Value_Definition_Source: MRDS,1995
    Attribute:
      Attribute_Label: IG_RK_AGE
      Attribute_Definition: Igneous rock age
      Attribute_Definition_Source: MRDS,1995
      Attribute_Domain_Values:
        Enumerated_Domain:
          Enumerated_Domain_Value: Alpha-numeric
          Enumerated_Domain_Value_Definition_Source: MRDS,1995
    Attribute:
      Attribute_Label: ORE_CTRL
      Attribute_Definition: Ore control
      Attribute_Definition_Source: MRDS,1995
      Attribute_Domain_Values:
        Enumerated_Domain:
          Enumerated_Domain_Value: Character
          Enumerated_Domain_Value_Definition_Source: MRDS,1995
    Attribute:
      Attribute_Label: TECTONICS
      Attribute_Definition: Tectonics
      Attribute_Definition_Source: MRDS,1995
      Attribute_Domain_Values:
        Enumerated_Domain:
          Enumerated_Domain_Value: Character
          Enumerated_Domain_Value_Definition_Source: MRDS,1995
    Attribute:
      Attribute_Label: ALTERATION
      Attribute_Definition: Alteration
      Attribute_Definition_Source: MRDS,1995
      Attribute_Domain_Values:
        Enumerated_Domain:
          Enumerated_Domain_Value: Character
          Enumerated_Domain_Value_Definition_Source: MRDS,1995
    Attribute:
      Attribute_Label: CONCENTRAT
      Attribute_Definition: Concentration
      Attribute_Definition_Source: MRDS,1995
      Attribute_Domain_Values:
        Enumerated_Domain:
          Enumerated_Domain_Value: Character
          Enumerated_Domain_Value_Definition_Source: MRDS,1995
    Attribute:
      Attribute_Label: ORE_MINS
      Attribute_Definition: Ore Minerals
      Attribute_Definition_Source: MRDS, 1995
      Attribute_Domain_Values:
        Enumerated_Domain:
          Enumerated_Domain_Value: Character
          Enumerated_Domain_Value_Definition_Source: MRDS,1995
    Attribute:
      Attribute_Label: NONORE_MIN
      Attribute_Definition: Non-ore minerals
      Attribute_Definition_Source: MRDS,1995
      Attribute_Domain_Values:
        Enumerated_Domain:
          Enumerated_Domain_Value: Character
          Enumerated_Domain_Value_Definition_Source: MRDS,1995
    Attribute:
      Attribute_Label: COMMENTS
      Attribute_Definition: Comments
      Attribute_Definition_Source: MRDS,1995
      Attribute_Domain_Values:
        Enumerated_Domain:
          Enumerated_Domain_Value: Character
          Enumerated_Domain_Value_Definition_Source: MRDS,1995
    Attribute:
      Attribute_Label: PROD1
      Attribute_Definition: Production
      Attribute_Definition_Source: MRDS,1995
      Attribute_Domain_Values:
        Enumerated_Domain:
          Enumerated_Domain_Value: Alpha-numeric
          Enumerated_Domain_Value_Definition_Source: MRDS,1995
    Attribute:
      Attribute_Label: PROD2
      Attribute_Definition: Production
      Attribute_Definition_Source: MRDS,1995
      Attribute_Domain_Values:
        Enumerated_Domain:
          Enumerated_Domain_Value: Alpha-numeric
          Enumerated_Domain_Value_Definition_Source: MRDS,1995
    Attribute:
      Attribute_Label: PROD3
      Attribute_Definition: Production
      Attribute_Definition_Source: MRDS,1995
      Attribute_Domain_Values:
        Enumerated_Domain:
          Enumerated_Domain_Value: Alpha-numeric
          Enumerated_Domain_Value_Definition_Source: MRDS,1995
    Attribute:
      Attribute_Label: CUM_PROD1
      Attribute_Definition: Cumulative production
      Attribute_Definition_Source: MRDS,1995
      Attribute_Domain_Values:
        Enumerated_Domain:
          Enumerated_Domain_Value: Alpha-numeric
          Enumerated_Domain_Value_Definition_Source: MRDS,1995
    Attribute:
      Attribute_Label: CUM_PROD2
      Attribute_Definition: Cumulative production
      Attribute_Definition_Source: MRDS,1995
      Attribute_Domain_Values:
        Enumerated_Domain:
          Enumerated_Domain_Value: Alpha-numeric
          Enumerated_Domain_Value_Definition_Source: MRDS,1995
    Attribute:
      Attribute_Label: CUM_PROD3
      Attribute_Definition: Cumulative production
      Attribute_Definition_Source: MRDS,1995
      Attribute_Domain_Values:
        Enumerated_Domain:
          Enumerated_Domain_Value: Alpha-numeric
          Enumerated_Domain_Value_Definition_Source: MRDS,1995
    Attribute:
      Attribute_Label: PR_COMMENT
      Attribute_Definition: Production comments
      Attribute_Definition_Source: MRDS,1995
      Attribute_Domain_Values:
        Enumerated_Domain:
          Enumerated_Domain_Value: Alpha-numeric
          Enumerated_Domain_Value_Definition_Source: MRDS,1995
    Attribute:
      Attribute_Label: RESERVES1
      Attribute_Definition: Reserves
      Attribute_Definition_Source: MRDS,1995
      Attribute_Domain_Values:
        Enumerated_Domain:
          Enumerated_Domain_Value: Alpha-numeric
          Enumerated_Domain_Value_Definition_Source: MRDS,1995
    Attribute:
      Attribute_Label: RESERVES2
      Attribute_Definition: Reserves
      Attribute_Definition_Source: MRDS,1995
      Attribute_Domain_Values:
        Enumerated_Domain:
          Enumerated_Domain_Value: Alpha-numeric
          Enumerated_Domain_Value_Definition_Source: MRDS,1995
    Attribute:
      Attribute_Label: RESERVES3
      Attribute_Definition: Reserves
      Attribute_Definition_Source: MRDS,1995
      Attribute_Domain_Values:
        Enumerated_Domain:
          Enumerated_Domain_Value: Alpha-numeric
          Enumerated_Domain_Value_Definition_Source: MRDS,1995
    Attribute:
      Attribute_Label: RESV_COM
      Attribute_Definition: Reserves Comments
      Attribute_Definition_Source: MRDS,1995
      Attribute_Domain_Values:
        Enumerated_Domain:
          Enumerated_Domain_Value: Alpha-numeric
          Enumerated_Domain_Value_Definition_Source: MRDS,1995
    Attribute:
      Attribute_Label: REF1
      Attribute_Definition: Reference
      Attribute_Definition_Source: MRDS,1995
      Attribute_Domain_Values:
        Enumerated_Domain:
          Enumerated_Domain_Value: Alpha-numeric
          Enumerated_Domain_Value_Definition_Source: MRDS,1995
    Attribute:
      Attribute_Label: REF2
      Attribute_Definition: Reference
      Attribute_Definition_Source: MRDS,1995
      Attribute_Domain_Values:
        Enumerated_Domain:
          Enumerated_Domain_Value: Alpha-numeric
          Enumerated_Domain_Value_Definition_Source: MRDS,1995
    Attribute:
      Attribute_Label: REF3
      Attribute_Definition: Reference
      Attribute_Definition_Source: MRDS,1995
      Attribute_Domain_Values:
        Enumerated_Domain:
          Enumerated_Domain_Value: Alpha-numeric
          Enumerated_Domain_Value_Definition_Source: MRDS,1995
    Attribute:
      Attribute_Label: REF4
      Attribute_Definition: Reference
      Attribute_Definition_Source: MRDS,1995
      Attribute_Domain_Values:
        Enumerated_Domain:
          Enumerated_Domain_Value: Alpha-numeric
          Enumerated_Domain_Value_Definition_Source: MRDS,1995
    Attribute:
      Attribute_Label: REF5
      Attribute_Definition: Reference
      Attribute_Definition_Source: MRDS,1995
      Attribute_Domain_Values:
        Enumerated_Domain:
          Enumerated_Domain_Value: Alpha-numeric
          Enumerated_Domain_Value_Definition_Source: MRDS,1995
    Attribute:
      Attribute_Label: STATE_NAME
      Attribute_Definition: State name
      Attribute_Definition_Source: MRDS,1995
      Attribute_Domain_Values:
        Enumerated_Domain:
          Enumerated_Domain_Value: Character
          Enumerated_Domain_Value_Definition_Source: MRDS,1995
    Attribute:
      Attribute_Label: COUNTRY_NM
      Attribute_Definition: Country Name
      Attribute_Definition_Source: MRDS,1995
      Attribute_Domain_Values:
        Enumerated_Domain:
          Enumerated_Domain_Value: Character
          Enumerated_Domain_Value_Definition_Source: MRDS,1995
    Attribute:
      Attribute_Label: MODEL_NAME
      Attribute_Definition: USGS Model name
      Attribute_Definition_Source: MRDS,1995
      Attribute_Domain_Values:
        Enumerated_Domain:
          Enumerated_Domain_Value: Character
          Enumerated_Domain_Value_Definition_Source: MRDS,1995
    Attribute:
      Attribute_Label: MODEL_NUM
      Attribute_Definition: USGS Model number
      Attribute_Definition_Source: MRDS,1995
      Attribute_Domain_Values:
        Enumerated_Domain:
          Enumerated_Domain_Value: Alpha-numeric
          Enumerated_Domain_Value_Definition_Source: MRDS,1995
    Attribute:
      Attribute_Label: TYPE
      Attribute_Definition: Cryptocrystalline type
      Attribute_Definition_Source: User-assigned field
      Attribute_Domain_Values:
        Enumerated_Domain:
          Enumerated_Domain_Value: Character
          Enumerated_Domain_Value_Definition: chalcedony
          Enumerated_Domain_Value_Definition_Source: User-assigned
        Enumerated_Domain:
          Enumerated_Domain_Value: Character
          Enumerated_Domain_Value_Definition: chert
          Enumerated_Domain_Value_Definition_Source: User-assigned
        Enumerated_Domain:
          Enumerated_Domain_Value: Character
          Enumerated_Domain_Value_Definition: jasper
          Enumerated_Domain_Value_Definition_Source: User-assigned
        Enumerated_Domain:
          Enumerated_Domain_Value: Character
          Enumerated_Domain_Value_Definition: opal
          Enumerated_Domain_Value_Definition_Source: User-assigned
        Enumerated_Domain:
          Enumerated_Domain_Value: Character
          Enumerated_Domain_Value_Definition: silica
          Enumerated_Domain_Value_Definition_Source: User-assigned
  Overview_Description:
    Entity_and_Attribute_Overview: For more attribute information on the MRDS data base refer to the MRDS metadata on the FGDC Clearinghouse for the CD-ROM version of MRDS produced by the U.S. Geological Survey as DDS-20 in 1996.
Distribution_Information:
  Distributor:
    Contact_Information:
      Contact_Person_Primary:
        Contact_Person: 
        Contact_Organization: U.S. Geological Survey, Information Services, Denver.
      Contact_Position: 
      Contact_Address:
        Address_Type: mailing and physical address
        Address: Open-file Reports, Box 25286
        City: Denver
        State_or_Province: Colorado
        Postal_Code: 80225
        Country: USA
      Contact_Voice_Telephone: 303-202-4200
      Contact_Facsimile_Telephone: 303-202-4695
      Contact_Electronic_Mail_Address: 
      Hours_of_Service: 
  Resource_Description: OF 99-523
  Distribution_Liability: No warranty, expressed or implied, is made by the USGS as to the accuracy of the data.  The act of distribution shall not constitute any such warranty, and no responsibility is assumed by the USGS in the use of these data, software, or related materials.
  Standard_Order_Process:
    Digital_Form:
      Digital_Transfer_Information:
        Format_Name: SHP
        File_Decompression_Technique: No compression applied
        Transfer_Size: 0.522
      Digital_Transfer_Option:
        Online_Option:
          Computer_Contact_Information:
            Network_Address:
              Network_Resource_Name: URL=http://geopubs.wr.usgs.gov/open-file/of99-523
          Access_Instructions: 
    Fees: Subject to change
  Custom_Order_Process: The Preliminary digital map of cryptocrystalline occurrencves in northern Nevada and data are available from the WWW in ArcView shapefile format with associated files.  URL is http://geopubs.wr.usgs.gov/openfile/of99-523/index.html  FTP is ftp://geopubs.wr.usgs.gov/pub/open-file/of99-523
  Available_Time_Period:
    Time_Period_Information:
      Single_Date/Time:
Metadata_Reference_Information:
  Metadata_Date: 20000622
  Metadata_Review_Date: 19990430
  Metadata_Contact:
    Contact_Information:
      Contact_Person_Primary:
        Contact_Person: Lorre A. Moyer
        Contact_Organization: U.S. Geological Survey, Reno Field Office
      Contact_Position: Geologist
      Contact_Address:
        Address_Type: mailing and physical address
        Address: USGS C/O Mackay School of Mines MS 176, University of Nevada
        City: Reno
        State_or_Province: Nevada
        Postal_Code: 89557
        Country: USA
      Contact_Voice_Telephone: 775-784-5552
      Contact_Facsimile_Telephone: 775-784-5079
      Contact_Electronic_Mail_Address: lorre@usgs.gov
      Hours_of_Service: 800-1600 PT
  Metadata_Standard_Name: FGDC Content Standards for Digital Geospatial Metadata
  Metadata_Standard_Version: FGDC-STD-001-1998
  Metadata_Time_Convention: local time
  Metadata_Access_Constraints: none
  Metadata_Use_Constraints: none
  Metadata_Security_Information:
    Metadata_Security_Classification_System: none
    Metadata_Security_Classification: Unclassified
    Metadata_Security_Handling_Description: none
  Metadata_Extensions:
    Online_Linkage: http://www.esri.com/metadata/esriprof80.html
    Profile_Name: ESRI Metadata Profile