Identification_Information:
  Citation:
    Citation_Information:
      Originator: U.S. Geological Survey (USGS)
      Publication_Date: 2006
      Title: Piceance Creek Basin, Colorado, Oil Shale Geodatabase
      Geospatial_Data_Presentation_Form: Downloadable GIS Data
      Series_Information:
        Series_Name: U.S. Geological Survey Data Series
        Issue_Identification: DS-181
      Publication_Information:
        Publication_Place: Denver, Colorado
        Publisher: U.S. Geological Survey
      Online_Linkage: http://pubs.usgs.gov/ds/2006/181/
      Larger_Work_Citation:
        Citation_Information:
          Series_Information:
          Publication_Information:
  Description:
    Abstract: This geodatabase is a digital reproduction of three legacy USGS oil shale publications--MF-958 (Pitman and Johnson, 1978), MF-1069 (Pitman, 1979), and OC-132 (Pitman and others, 1990). The database consists of 106 feature classes in three feature datasets organized by publication. Each dataset contains isopach contours, isoresource contours, isoresource polygons, and corehole and drillhole locations with resource values for 12 kerogen-rich (R) and kerogen-lean (L) oil shale zones in the Piceance Creek Basin, Colorado. The uppermost zones, Mahogany and R-6, also contain detailed structure files. The zones in descending order are: Mahogany, R-6, L-5, R-5, L-4, R-4, L-3, R-3, L-2, R-2, L-1, and R-1.
    Purpose: Increasing energy demand, changing economics, new technology, and geopolitical issues have spurred renewed interest in other energy alternatives such as oil shale, heavy oil, and tar sands. The USGS Energy Resources Program has previously conducted extensive field and geologic research on these commodities and is initiating an effort to inventory and make these important legacy information assets accessible to the public, land managers, and other decision-makers. In addition, the Energy Program is scoping the geologic, technical, economic, and environmental factors controlling the production and use of these energy sources and will provide recommendations for future research in order to meet the energy needs of the United States.
  Time_Period_of_Content:
    Time_Period_Information:
      Single_Date/Time:
        Calendar_Date: 2006
    Currentness_Reference: publication date
  Status:
    Progress: Complete
    Maintenance_and_Update_Frequency: None planned
  Spatial_Domain:
    Bounding_Coordinates:
      West_Bounding_Coordinate: -108.775099
      East_Bounding_Coordinate: -107.881744
      North_Bounding_Coordinate: 40.173639
      South_Bounding_Coordinate: 39.373661
  Keywords:
    Theme:
      Theme_Keyword_Thesaurus: ArcIMS Metadata Server Theme Codes
      Theme_Keyword: geoscientificInformation
    Theme:
      Theme_Keyword_Thesaurus: Gateway to the Earth draft 9 28-Jun-2002
      Theme_Keyword: Oil shale resources
      Theme_Keyword: Economic geology
    Theme:
      Theme_Keyword_Thesaurus: none
      Theme_Keyword: Energy resources
      Theme_Keyword: Oil shale
      Theme_Keyword: Oil
      Theme_Keyword: Resource assessment
      Theme_Keyword: Earth science
      Theme_Keyword: Natural resources
      Theme_Keyword: U.S. Geological Survey
      Theme_Keyword: USGS
      Theme_Keyword: Geology
      Theme_Keyword: Eocene Green River Formation
    Place:
      Place_Keyword_Thesaurus: none
      Place_Keyword: United States
      Place_Keyword: Piceance Creek Basin
      Place_Keyword: Colorado Plateau
      Place_Keyword: CO
  Access_Constraints: none
  Use_Constraints: These data are appropriate for regional analysis at a scale of 1:126,720 or less for the Mahogany and R-6 oil shale zones and 1:250,000 or less for the L5, R5, L4, R4, L3, R3, L2, R2, L1, and R1 zones.
  Point_of_Contact:
    Contact_Information:
      Contact_Organization_Primary:
        Contact_Organization: U.S. Geological Survey, Central Energy Resources Team
        Contact_Person: Ronald C. Johnson
      Contact_Position: Geologist
      Contact_Address:
        Address_Type: mailing and physical address
        Address: U.S. Geological Survey, Box 25046, MS 939, Denver Federal Center
        City: Denver
        State_or_Province: Colorado
        Postal_Code: 80225
        Country: USA
      Contact_Voice_Telephone: (303) 236-5546
      Contact_Electronic_Mail_Address: rcjohnson@usgs.gov
  Browse_Graphic:
    Browse_Graphic_File_Name: http://pubs.usgs.gov/ds/2006/181/downloads/pic_oilshale.jpg
    Browse_Graphic_File_Description: graphical representation of map
    Browse_Graphic_File_Type: JPEG
  Native_Data_Set_Environment: Microsoft Windows XP Version 5.1 (Build 2600) Service Pack 2; ESRI ArcCatalog 9.1.0.722
Data_Quality_Information:
  Attribute_Accuracy:
    Attribute_Accuracy_Report: All attributes have been peer-reviewed and reviewed for accuracy by the USGS Central Publications Group.
  Logical_Consistency_Report: The accuracy of the data contained in this geodatabase is a reflection of the accuracy of the data contained in the original publications. Every effort was made to maintain consistency and simply replicate the original published maps in digital form.
  Completeness_Report: All geodatabase layers contain all values and linework contained on original maps.
  Positional_Accuracy:
    Horizontal_Positional_Accuracy:
      Horizontal_Positional_Accuracy_Report: All linework in the geodatabase was reviewed on-screen and is accurate at its source scale. For layers contained in MF958 and MF1069, the linework is accurate at a scale of 1:126,720 or less. For layers contained in OC132, the linework is accurate at a scale of 1:250,000 or less.
  Lineage:
    Source_Information:
      Source_Citation:
        Citation_Information:
          Originator: Pitman, J.K.
          Originator: Johnson, R.C.
          Publication_Date: 1978
          Title: Isopach, structure contour, and resource maps of the Mahogany oil-shale zone, Green River Formation, Piceance Creek basin, Colorado
          Geospatial_Data_Presentation_Form: map
          Series_Information:
            Series_Name: U.S. Geological Survey Miscellaneous Field Studies Map
            Issue_Identification: MF-958
          Publication_Information:
            Publication_Place: Denver, Colorado
            Publisher: U.S. Geological Survey
          Other_Citation_Details: 4 maps on 2 sheets
          Online_Linkage: http://pubs.er.usgs.gov/pubs/mf/mf958
      Source_Scale_Denominator: 126,720
      Type_of_Source_Media: paper
      Source_Time_Period_of_Content:
        Time_Period_Information:
          Single_Date/Time:
            Calendar_Date: 1978
        Source_Currentness_Reference: publication date
      Source_Citation_Abbreviation: Pitman and Johnson (1978)
      Source_Contribution: structure, isopach, oil shale resources, data points, Mahogany outcrop
    Source_Information:
      Source_Citation:
        Citation_Information:
          Originator: Pitman, J.K.
          Publication_Date: 1979
          Title: Isopach, structure contour, and resource maps of the R-6 oil-shale zone, Green River Formation, Piceance Creek basin, Colorado
          Geospatial_Data_Presentation_Form: map
          Series_Information:
            Series_Name: U.S. Geological Survey Miscellaneous Field Studies Map
            Issue_Identification: MF-1069
          Publication_Information:
            Publication_Place: Denver, Colorado
            Publisher: U.S. Geological Survey
          Other_Citation_Details: 4 maps on 2 sheets
          Online_Linkage: http://pubs.er.usgs.gov/pubs/mf/mf1069
      Source_Scale_Denominator: 126,720
      Type_of_Source_Media: paper
      Source_Time_Period_of_Content:
        Time_Period_Information:
          Single_Date/Time:
            Calendar_Date: 1979
        Source_Currentness_Reference: publication date
      Source_Citation_Abbreviation: Pitman (1979)
      Source_Contribution: structure, isopach, oil shale resources, data points
    Source_Information:
      Source_Citation:
        Citation_Information:
          Originator: Pitman, J.K.
          Originator: Pierce, F.W.
          Originator: Grundy, W.D.
          Publication_Date: 1990
          Title: Thickness, oil-yield, and kriged resource estimates for the Eocene Green River Formation, Piceance Creek Basin, Colorado
          Geospatial_Data_Presentation_Form: map
          Series_Information:
            Series_Name: U.S. Geological Survey Oil and Gas Investigation Chart
            Issue_Identification: OC-132
          Publication_Information:
            Publication_Place: Denver, Colorado
            Publisher: U.S. Geological Survey
          Other_Citation_Details: 30 maps on 5 sheets plus 4-page pamphlet
          Online_Linkage: http://pubs.er.usgs.gov/pubs/oc/oc132
      Source_Scale_Denominator: 250,000
      Type_of_Source_Media: paper
      Source_Time_Period_of_Content:
        Time_Period_Information:
          Single_Date/Time:
            Calendar_Date: 1990
        Source_Currentness_Reference: publication date
      Source_Citation_Abbreviation: Pitman and others (1990)
      Source_Contribution: structure, isopach, oil shale resources, data points, revised Mahogany outcrop, saline zone
    Process_Step:
      Process_Description:
        All original hardcopy maps were scanned and cropped to extract the structure, isopach, and isoresource maps for each oil shale zone. Images were then registered and rectified in ArcGIS 9.1. The Mahogany and R-6 oil shale zones were published at a scale of 1:126,720, whereas the L-5 through R-1 zones were published at a scale of 1:250,000. All feature classes were digitized on screen at a scale of approximately 1:20,000. The Mahogany outcrop line was digitized from MF-958 on screen and used as registration for all subsequent feature classes. The resultant feature class, m_outcrop, was used for the MF-958 and MF-1069 feature datasets. This outcrop line was revised in two small areas in the original 1990 publication OC-132 and was therefore edited and saved as m_outcrop_oc132 for use in the OC-132 feature dataset.

        As digital reproduction was the primary goal, the point and polyline feature classes in all three feature datasets are simply digital replicas of the original hardcopy maps. All feature classes were digitized on screen in ArcGIS 9.1 utilizing several topology rules and attributed accordingly using the domain "Type" when necessary. Polygon feature classes for gallons per ton (gpt) and barrels per acre (bpa) were not present on the original hardcopy maps. These polygon feature classes were created in ArcCatalog by merging the appropriate outcrop line (m_outrcop or m_outrcrop_oc132) with each polyline feature class. Resource polygons were then attributed (BPA_RNG or GPT_RNG) to reflect the values between each contour line in the isoresource polyline feature classes. (Please note: All values for barrels per acre (bpa) are reported in thousands to maintain consistency with the original hardcopy publications).
      Process_Date: 2006
      Process_Contact:
        Contact_Information:
          Contact_Person_Primary:
            Contact_Person: Tracey J. Mercier
            Contact_Organization: U.S. Geological Survey, Central Energy Resources Team
          Contact_Position: Contractor
          Contact_Address:
            Address_Type: mailing and physical address
            Address: U.S. Geological Survey, Box 25046, MS 939, Denver Federal Center
            City: Denver
            State_or_Province: Colorado
            Postal_Code: 80225
            Country: USA
          Contact_Voice_Telephone: 303 236 5546
Spatial_Data_Organization_Information:
  Direct_Spatial_Reference_Method: Vector
  Point_and_Vector_Object_Information:
Spatial_Reference_Information:
  Horizontal_Coordinate_System_Definition:
    Planar:
      Map_Projection:
        Map_Projection_Name: Polyconic
        Polyconic:
          Longitude_of_Central_Meridian: -108.375000
          Latitude_of_Projection_Origin: 39.375000
          False_Easting: 0.000000
          False_Northing: 0.000000
      Planar_Coordinate_Information:
        Planar_Coordinate_Encoding_Method: coordinate pair
        Coordinate_Representation:
          Abscissa_Resolution: 0.000128
          Ordinate_Resolution: 0.000128
        Planar_Distance_Units: meters
    Geodetic_Model:
      Horizontal_Datum_Name: D_WGS_1984
      Ellipsoid_Name: WGS_1984
      Semi-major_Axis: 6378137.000000
      Denominator_of_Flattening_Ratio: 298.257224
  Vertical_Coordinate_System_Definition:
    Altitude_System_Definition:
Entity_and_Attribute_Information:
  Overview_Description:
    Entity_and_Attribute_Overview:
      Entities contained in this Overview Description section pertain to geodatabase feature classes and their associated attributes. Entity_Type_Label contains the feature class name and Attribute_Definition defines the items contained within each feature class as well as a brief description of each attribute. Please note that not all entities or their attributes are found in each dataset. For example, *_data_pts can only be found in the MF958 and MF1069 datasets and not in the OC132 dataset. 

      Feature classes are listed as " *_bpa_data_pts " where " * "  can be replaced with the layer name, such as "m" for the Mahogany or "l5" for  the L5 oil shale zone.

      There is one domain contained in this geodatabase named "Type." The domain was used to facilitate attributing in ArcGIS of the following items:

      C = Certain (all polyline feature classes)
      I = Inferred (approximate or eroded) (all polyline feature classes)
      CH = Corehole for oil-shale evaluation (all point feature classes)
      DH = Drillhole for oil and gas (all point feature classes)

      Please note: All values for all feature classes pertaining to "bpa" or barrels per acre are reported in thousands to maintain consistency with the original publications.

      Aliases:

      Barrels per Acre (thousands) -- in "bpa" feature classes
      Gallons per Ton oil-yield -- in "gpt" feature classes
      LEACH_% -- in L5 and R5 "isopach" and "gpt" point feature classes (percentage of zone leached)
      Thickness of zone, in feet -- in "iso" and "isopach" feature classes
      Elevation in feet, top of zone -- in "struc" feature classes (Mahogany and R-6)

      Feature classes and attributes:

      Entity_Type_Label: *_bpa_data_pts
      Entity_Type_Definition: feature class (data point locations with barrels per acre values in thousands)
      Attribute_Definition: BLPERAC (barrels per acre oil-yield, in thousands)
      Attribute_Definition: HOLETYPE (oil and gas drillhole or corehole for oil shale studies)

      Entity_Type_Label: *_bpa_pl
      Entity_Type_Definition: feature class (barrels per acre, in thousands, isoresource polylines)
      Attribute_Definition: BLPERAC (barrels per acre oil-yield, in thousands)
      Attribute_Definition: LINETYPE (certain or inferred)

      Entity_Type_Label: *_bpa_pol
      Entity_Type_Definition: feature class (barrels per acre, in thousands, polygons)
      Attribute_Definition: BPA_RNG (range of barrels per acre oil-yield, in thousands)

      Entity_Type_Label: *_gpt_data_pts
      Entity_Type_Definition: feature class (gallons per ton data points)
      Attribute_Definition: GLPERTON (gallons per ton oil-yield)
      Attribute_Definition: HOLETYPE (oil and gas drillhole or corehole for oil shale studies)
      Attribute_Definition: LEACH_VAL (percentage of zone leached, zones L5 and R5 only)

      Entity_Type_Label: *_gpt_pl
      Entity_Type_Definition: feature class (gallons per ton isoresource polylines)
      Attribute_Definition: GLPERTON (gallons per ton oil-yield)
      Attribute_Definition: LINETYPE (certain or inferred)

      Entity_Type_Label: *_gpt_pol
      Entity_Type_Definition: feature class (gallons per ton polygons)
      Attribute_Definition: GPT_RNG (range of gallons per ton oil-yield)

      Entity_Type_Label: *_iso_data_pts
      Entity_Type_Definition: feature class (isopach point values of oil shale zone)
      Attribute_Definition: HOLETYPE (oil and gas drillhole or corehole for oil shale studies)
      Attribute_Definition: THICKFT (thickness of oil shale zone, in feet)
      Attribute_Definition: LEACH_VAL (percentage of zone leached, zones L5 and R5 only)

      Entity_Type_Label: *_isopach
      Entity_Type_Definition: feature class (isopach polylines of oil shale zone)
      Attribute_Definition: LINETYPE (certain or inferred)
      Attribute_Definition: THICKFT (thickness of oil shale zone, in feet)

      Entity_Type_Label: *_ant_syn
      Entity_Type_Definition: feature class (polylines of anticlines and synclines)

      Entity_Type_Label: *_data_pts
      Entity_Type_Definition: feature class (data point locations only -- no values on original map, Mahogany and  R-6 zones only)
      Attribute_Definition: HOLETYPE (oil and gas drillhole or corehole for oil shale studies)

      Entity_Type_Label: *_faults
      Entity_Type_Definition: feature class (polylines of faults)
      Attribute_Definition: LINETYPE (certain or inferred)

      Entity_Type_Label: m_outcrop
      Entity_Type_Definition: feature class (polylines of Mahogany outrcrop, MF958 only)

      Entity_Type_Label: m_outcrop_oc132
      Entity_Type_Definition: feature class (revised Mahogany outcrop polylines in OC-132)

      Entity_Type_Label: *_struc
      Entity_Type_Definition: feature class (structure contour lines in Mahogany and R-6 zones)
      Attribute_Definition: LINETYPE (certain or inferred)
      Attribute_Definition: ELEVFT (elevation of top of oil shale zone above sea level, in feet)

      Entity_Type_Label: saline_zone
      Entity_Type_Definition: feature class (salinity zone polygon in L-5 and R-5 zones)
    Entity_and_Attribute_Detail_Citation: none
Distribution_Information:
  Distributor:
    Contact_Information:
      Contact_Organization_Primary:
        Contact_Organization: U.S. Geological Survey
      Contact_Address:
        Address_Type: mailing address
        Address: Central Publications Group
        Address: MS 902
        Address: Box 25046
        Address: Denver Federal Center
        City: Denver
        State_or_Province: Colorado
        Postal_Code: 80225
        Country: USA
      Contact_Voice_Telephone: 303-236-5486
      Contact_Electronic_Mail_Address: webmaster@geology.cr.usgs.gov
  Resource_Description: Downloadable data
  Distribution_Liability:
    This publication was prepared by an agency of the United States Government. Neither the United States Government nor any agency thereof, nor any of their employees, makes any warranty, expressed or implied, or assumes any legal liability or responsibility for the accuracy, completeness, or usefulness of any information, apparatus, product, or process disclosed in this report, or represents that its use would not infringe privately owned rights. Reference therein to any specific commercial product, process, or service by trade name, trademark, manufacturer, or otherwise does not necessarily constitute or imply its endorsement, recommendation, or favoring by the United States Government or any agency thereof.

    Although all data and software published on this are used by the U.S. Geological Survey, no warranty, expressed or implied, is made by the U.S. Geological Survey as to the accuracy of the data and related materials and (or) the functioning of the software. The act of distribution shall not constitute any such warranty, and no responsibility is assumed by the U.S. Geological Survey in the use of these data, software, or related materials.
  Standard_Order_Process:
    Digital_Form:
      Digital_Transfer_Information:
        Format_Name: ESRI Personal Geodatabase
        Format_Information_Content: 100+ feature classes within three feature datasets
      Digital_Transfer_Option:
        Online_Option:
          Computer_Contact_Information:
            Network_Address:
              Network_Resource_Name: http://pubs.usgs.gov/ds/2006/181/
    Digital_Form:
      Digital_Transfer_Information:
        Format_Name: Image Map Service (CO_oilshale1)
        Format_Version_Number: 9x
        Format_Specification: ArcIMS Image Map Service
        Format_Information_Content: A web-based interactive mapping system that accesses an ArcIMS Map Service running on certmapper.cr.usgs.gov.
      Digital_Transfer_Option:
        Online_Option:
          Computer_Contact_Information:
            Network_Address:
              Network_Resource_Name: http://certmapper.cr.usgs.gov/pubs/servlet/MapViewerBroker?project=oilshale&service=CO_oilshale1&OVMap=CO_overview2
          Access_Instructions: This URL links to a web-based interactive mapping system that accesses an ArcIMS Image Map Service.  The mapservice can also be accessed using any custom client that adheres to the protocol specified through ArcXML.
    Fees: None
    Ordering_Instructions: This product can be downloaded individually using any one of the Network_Resource_Name URLs above. Each of these URLs may provide access to various formats of these data.
Metadata_Reference_Information:
  Metadata_Date: 20060329
  Metadata_Contact:
    Contact_Information:
      Contact_Organization_Primary:
        Contact_Organization: U.S. Geological Survey, Central Energy Resources Team
        Contact_Person: Tracey J. Mercier
      Contact_Position: Contractor
      Contact_Address:
        Address_Type: mailing and physical address
        Address: U.S. Geological Survey, Box 25046, MS 939, Denver Federal Center
        City: Denver
        State_or_Province: Colorado
        Postal_Code: 80225
        Country: USA
      Contact_Voice_Telephone: 303 236 5546
      Contact_Electronic_Mail_Address: datamgt@usgs.gov
      Contact_Instructions: For inquiries regarding this document, please include the metadata contact person's name, dataset name, and publication series and number.
  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