Identification_Information:
  Citation:
    Citation_Information:
      Originator: Sandra Troutman
      Originator: Rick Stanley
      Publication_Date: 02/04
      Title: iop
      Geospatial_Data_Presentation_Form: vector digital 
      data
      Online_Linkage: 
      http://pubs.usgs.gov/mf/2003/2428/
  Description:
    Abstract: This database and accompanying text depict 
    historical and modern reported occurrences of petroleum 
    both in wells and at the surface within the boundaries 
    of the Central Alaska Province.  These data were 
    compiled from previously published and unpublished 
    sources and were prepared for use in the 2002 U.S. 
    Geological Survey petroleum assessment of Central 
    Alaska, Yukon Flats region.  Indications of petroleum 
    are described as oil or gas shows in wells, oil or gas 
    seeps, or outcrops of oil shale or oil-bearing rock and 
    include confirmed and unconfirmed reports.  The scale 
    of the source map limits the spatial resolution (scale) 
    of the database to 1:2,500,000 or smaller.
    Purpose: This database and accompanying text file 
    describe historical and modern occurrences of petroleum 
    in wells and natural seeps in Central Alaska at a 
    regional (1:2,500,000) scale.  This database was 
    developed for the US Geological Survey's petroleum 
    assessment of Central Alaska.  The report is intended 
    to provide information on historical and modern 
    indications of petroleum within the Central Alaska 
    Province boundaries.
    Supplemental_Information:
      This report was compiled and digitized from 
      previously published and unpublished sources.  This 
      coverage was compiled in ArcInfo, a commercial 
      Geographic Information System  produced by ESRI 
      (Environmental Systems Research Institute, Redlands, 
      California), version 8.2.0.  The files are coverage 
      (ArcInfo vector data) format.  Coverages are stored 
      in uncompressed ARC export format (ArcInfo version 
      8.2.0).  ArcInfo export files (files with .e00 
      extensions) can be converted into ArcInfo coverages 
      in ArcInfo and can be read by some other Geographic 
      Information Systems, such as MapInfo and ESRI's 
      ArcView (limited versions of this software are 
      available for free from ESRI's web site: 
      http://www.esri.com).

      The primary source of information on seeps and older 
      wells is Miller and others (1959).  Additional 
      information on seeps and wells was acquired form the 
      published literature, public records available at the 
      Alaska Oil and Gas Conservation Commission and the 
      Alaska Geologic Materials Center, and unpublished 
      documents provided by companies and individuals.
  Time_Period_of_Content:
    Time_Period_Information:
      Single_Date/Time:
        Calendar_Date: 2004
    Currentness_Reference: publication date
  Status:
    Progress: Pre-publication
    Maintenance_and_Update_Frequency: As needed depending 
    on contributions from recently published literature and 
    submissions from geologists knowledgeable in Alaska 
    petroleum geology
  Spatial_Domain:
    Bounding_Coordinates:
      West_Bounding_Coordinate: -166.086197
      East_Bounding_Coordinate: -141.080307
      North_Bounding_Coordinate: 67.765999
      South_Bounding_Coordinate: 58.945229
  Keywords:
    Theme:
      Theme_Keyword_Thesaurus: REQUIRED: Reference to a 
      formally registered thesaurus or a similar 
      authoritative source of theme keywords.
      Theme_Keyword: historical
      Theme_Keyword: Petroleum
      Theme_Keyword: Gas
      Theme_Keyword: Oil
      Theme_Keyword: geology
      Theme_Keyword: petroleum geology
      Theme_Keyword: petroleum exploration
      Theme_Keyword: Energy Resources
      Theme_Keyword: Natural Gas
      Theme_Keyword: Earth Science
      Theme_Keyword: Natural Resources
      Theme_Keyword: U.S. Geological Survey
      Theme_Keyword: USGS
    Place:
      Place_Keyword: United States of America
      Place_Keyword: Alaska
      Place_Keyword: Central Alaska province
    Stratum:
      Stratum_Keyword: oil show
      Stratum_Keyword: oil seep
      Stratum_Keyword: gas show
      Stratum_Keyword: gas seep
      Stratum_Keyword: Bethel basin
      Stratum_Keyword: Bristol Bay basin
      Stratum_Keyword: Innoko basin
      Stratum_Keyword: Kandik region
      Stratum_Keyword: Kobuk flysch belt
      Stratum_Keyword: Kotzebue basin
      Stratum_Keyword: Kuskokwim flysch belt
      Stratum_Keyword: Nenana basin
      Stratum_Keyword: Northway lowlands
      Stratum_Keyword: Norton basin
      Stratum_Keyword: Yukon Flats basin
      Stratum_Keyword: Yukon-Koyukuk flysch belt
      Stratum_Keyword: oil well
      Stratum_Keyword: gas well
      Stratum_Keyword: dry well
  Access_Constraints: none
  Use_Constraints: Uses of this digital coverage should not 
  violate the spatial resolution of the data.  Although the 
  digital form of the data removes the constraint imposed 
  by the scale of a paper  map, the detail and accuracy 
  inherent in map scale are also present in the digital 
  data.  The fact that this database was edited for a scale 
  of 1:2,500,000 means that higher resolution information 
  is not present in the dataset.  Plotting at scales larger 
  than 1:2,500,000 will not yield greater real detail, 
  although it may reveal fine-scale irregularities below 
  the intended resolution of the database
  Point_of_Contact:
    Contact_Information:
      Contact_Person_Primary:
        Contact_Person: Richard Stanley
        Contact_Organization: United States Geological 
        Survey
      Contact_Position: Senior Scientist
      Contact_Facsimile_Telephone: 650-329-4975
      Contact_Electronic_Mail_Address: rstanley@usgs.gov
      Hours_of_Service: Business hours PST
  Data_Set_Credit: Data compiled by Rick Stanley and Sandra 
  Troutman, USGS Menlo Park, CA
  Security_Information:
    Security_Classification_System: none
    Security_Classification: Unclassified
    Security_Handling_Description: none
  Native_Data_Set_Environment: Microsoft Windows 2000 
  Version 5.0 (Build 2195) Service Pack 4; ESRI ArcCatalog 
  8.3.0.800
Data_Quality_Information:
  Attribute_Accuracy:
    Attribute_Accuracy_Report: The level of accuracy of 
    individual data points is included in the database and 
    is discussed in the text accompanying the coverage.
  Completeness_Report: This coverage is intended to 
  describe historical reports of indications of petroleum 
  occurring within the central Alaska province boundary and 
  does not include indications of petroleum within the 
  state of Alaska outside this boundary.  This information 
  has been solicited and collected from available sources 
  but may not represent all such occurrences.  Updates will 
  be made to the database as needed.
  Positional_Accuracy:
    Horizontal_Positional_Accuracy:
      Horizontal_Positional_Accuracy_Report: Positional 
      accuracy of data varies depending on the source of 
      the information.  Points attributed to Miller, et al, 
      (1959) include inherent errors in accuracy associated 
      with determining locations from third-party sources 
      and are discussed in the original text.  Points from 
      Miller, et al (1951) were digitized from the original 
      paper map at a scale of 1:2,500,000 georeferenced to 
      a state of Alaska coverage with an RMS error of .002 
      digitizer inches. At this scale, individual points 
      are approximately 1mm in diameter and therefore have 
      a positional accuracy of .5mm at 1:2,500,000, or 
      within  1.25 km on the ground.  The general 
      positional accuracy of onshore wells was taken from 
      public record survey data maintained by the Alaska 
      Oil and Gas Conservation Commission and is accurate 
      to within 10 meters on the ground.  Locations of 
      offshore wells are from survey data maintained by the 
      Minerals Management Service.  This survey data was 
      plotted onto 1:63,360 scale maps in order to 
      determine latitude and longitude.  This is the 
      largest scale map available for most of Alaska, with 
      the exception of population centers.   These data 
      locations are deemed to be accurate to within 1km on 
      the ground.  Locations of all other modern 
      indications of petroleum are taken from references as 
      noted.
    Vertical_Positional_Accuracy:
      Vertical_Positional_Accuracy_Report: No vertical 
      positional data recorded
  Lineage:
    Source_Information:
      Source_Citation:
        Citation_Information:
          Originator: Miller, D. J.
          Originator: Payne, T. G.
          Originator: Gryc, George
          Publication_Date: 1959
          Title: Geology of possible petroleum provinces in 
          Alaska
          Geospatial_Data_Presentation_Form: paper map
          Series_Information:
            Series_Name: U.S. Geological Survey Bulletin
            Issue_Identification: 1094
      Source_Scale_Denominator: 1:2,500,000
      Type_of_Source_Media: Paper map and accompanying 
      report
      Source_Time_Period_of_Content:
        Time_Period_Information:
          Single_Date/Time:
            Calendar_Date: 1959
        Source_Currentness_Reference: publication date
      Source_Citation_Abbreviation: Miller, et al., 1959
      Source_Contribution: Location data and description of 
      historic  indications of petroleum, including 
      discussions of reliability of data and status of 
      current or historical investigation.
    Process_Step:
      Process_Description: The location information for 
      points attributed to Miller, et al, 1959, was 
      digitized from a stable, original, paper map at a 
      1:2,500,000 scale.  This map was scanned on a large-
      scale, flatbed scanner with a resolution of 600 dots 
      per inch.  The scanned image was georeferenced 
      interactively with ArcInfo and rectified with a first 
      order polynomial transformation.  The data points 
      were digitized interactively by hand.
      Source_Used_Citation_Abbreviation: Miller, et al 1959
      Process_Date: 2002
      Process_Contact:
        Contact_Information:
          Contact_Person_Primary:
            Contact_Person: Richard Stanley 
            Contact_Organization: USGS
          Contact_Position: Geologist
          Contact_Address:
            Address_Type: mailing address
            Address: 345 Middlefield Road MS 969
            City: Menlo Park
            State_or_Province: CA
            Postal_Code: 94025
            Country: USA
          Contact_Voice_Telephone: 650-329-4918
          Contact_Facsimile_Telephone: 650-329-4975
          Contact_Electronic_Mail_Address: 
          rstanley@usgs.gov
          Hours_of_Service: Business hours PST
    Process_Step:
      Process_Description: Metadata imported.
      Source_Used_Citation_Abbreviation: 
      C:\DOCUME~1\ADMINI~1\LOCALS~1\Temp\xml7.tmp
    Process_Step:
      Process_Description: Metadata imported.
      Source_Used_Citation_Abbreviation: 
      D:\Workspace\Coverages\Final_Open_file\All_Files\
      Expanded_files\iop\metadata.xml
    Process_Step:
      Process_Description: Dataset copied.
      Source_Used_Citation_Abbreviation:
    Process_Step:
      Process_Description: Dataset copied.
      Source_Used_Citation_Abbreviation: 
      \\ENERGY37234\D$\Workspace\IMap.mdb
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: 95
    SDTS_Terms_Description:
      SDTS_Point_and_Vector_Object_Type: Point
      Point_and_Vector_Object_Count: 4
    SDTS_Terms_Description:
      SDTS_Point_and_Vector_Object_Type: Label point
      Point_and_Vector_Object_Count: 0
Spatial_Reference_Information:
  Horizontal_Coordinate_System_Definition:
    Geographic:
      Latitude_Resolution: 0.000000
      Longitude_Resolution: 0.000000
      Geographic_Coordinate_Units: Decimal degrees
    Geodetic_Model:      Horizontal_Datum_Name: 
    D_Clarke_1866
      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: iop.pat
      Entity_Type_Definition: Coverage showing historical 
      and modern indications of petroleum within the 
      central Alaska province boundaries.
      Entity_Type_Definition_Source: compilation of 
      published and unpublished data sources.  See 
      accompanying text file for References Cited 
      information
    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: Area is always zero for 
        point coverages.  Values are automatically 
        generated.
    Attribute:
      Attribute_Label: PERIMETER
      Attribute_Definition: Perimeter of feature in 
      internal units.
      Attribute_Definition_Source: ESRI
      Attribute_Domain_Values:
        Unrepresentable_Domain: Perimeter is always zero 
        for point coverages.  Values are automatically 
        generated.
    Attribute:
      Attribute_Label: IOP#
      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: Vicinity
      Attribute_Definition: Indicates location within the 
        Central Alaska province boundary.  Numbers increase 
        from northwest to southeast.
      Attribute_Definition_Source: author
      Attribute_Domain_Values:
        Enumerated_Domain:
          Enumerated_Domain_Value: Bethel
          Enumerated_Domain_Value_Definition: Data point is 
        located in the vicinity of Bethel Basin
          Enumerated_Domain_Value_Definition_Source: author
        Enumerated_Domain:
          Enumerated_Domain_Value: Bristol Bay
          Enumerated_Domain_Value_Definition: Data point is 
        located in the vicinity of Bristol Bay basin
          Enumerated_Domain_Value_Definition_Source: author
        Enumerated_Domain:
          Enumerated_Domain_Value: Innoko
          Enumerated_Domain_Value_Definition: Data point is 
        located in the vicinity of Innoko basin
          Enumerated_Domain_Value_Definition_Source: author
        Enumerated_Domain:
          Enumerated_Domain_Value: Kandik
          Enumerated_Domain_Value_Definition: Data point is 
        located in the Kandik Basin region
          Enumerated_Domain_Value_Definition_Source: author
        Enumerated_Domain:
          Enumerated_Domain_Value: Kobuk
          Enumerated_Domain_Value_Definition: Data point is 
        located in the vicinity of the Kobuk flysch belt
          Enumerated_Domain_Value_Definition_Source: author
        Enumerated_Domain:
          Enumerated_Domain_Value: Kotzebue
          Enumerated_Domain_Value_Definition: Data point is 
        located in the vicinity of Kotzebue Basin
          Enumerated_Domain_Value_Definition_Source: author
        Enumerated_Domain:
          Enumerated_Domain_Value: Kuskokwim
          Enumerated_Domain_Value_Definition: Data point is 
        located in the vicinity of Kuskokwim flysch belt
          Enumerated_Domain_Value_Definition_Source: author
        Enumerated_Domain:
          Enumerated_Domain_Value: Nenana
          Enumerated_Domain_Value_Definition: Data point is 
        located in the vicinity of Nenana basin
          Enumerated_Domain_Value_Definition_Source: author
        Enumerated_Domain:
          Enumerated_Domain_Value: Northway
          Enumerated_Domain_Value_Definition: Data point is 
        located in the vicinity of Northway lowlands
          Enumerated_Domain_Value_Definition_Source: author
        Enumerated_Domain:
          Enumerated_Domain_Value: Norton
          Enumerated_Domain_Value_Definition: Data point is 
        located in the vicinity of Norton basin
          Enumerated_Domain_Value_Definition_Source: author
        Enumerated_Domain:
          Enumerated_Domain_Value: Yukon Flats
          Enumerated_Domain_Value_Definition: Data point is 
        located in the vicinity of Yukon Flats basin
          Enumerated_Domain_Value_Definition_Source: author
        Enumerated_Domain:
          Enumerated_Domain_Value: Yukon-Koyukuk
          Enumerated_Domain_Value_Definition: Data point is 
          located in the vicinity of Yukon-Koyukuk flysch 
          belt
          Enumerated_Domain_Value_Definition_Source: author
      Attribute_Domain_Values:
        Enumerated_Domain:
          Enumerated_Domain_Value: Kuskokwim flysch belt
    Attribute:
      Attribute_Label: IOP_CODE
      Attribute_Definition: Indicates type of Indication Of 
      Petroleum
      Attribute_Definition_Source: author
      Attribute_Domain_Values:
        Enumerated_Domain:
          Enumerated_Domain_Value: 1
          Enumerated_Domain_Value_Definition: Well with oil 
          show(s)
          Enumerated_Domain_Value_Definition_Source: author
        Enumerated_Domain:
          Enumerated_Domain_Value: 2
          Enumerated_Domain_Value_Definition: Well with gas 
          show(s)
          Enumerated_Domain_Value_Definition_Source: author
        Enumerated_Domain:
          Enumerated_Domain_Value: 3
          Enumerated_Domain_Value_Definition: Well with no 
          oil or gas shows
          Enumerated_Domain_Value_Definition_Source: author
        Enumerated_Domain:
          Enumerated_Domain_Value: 4
          Enumerated_Domain_Value_Definition: Oil seep, 
          confirmed
          Enumerated_Domain_Value_Definition_Source: author
        Enumerated_Domain:
          Enumerated_Domain_Value: 5
          Enumerated_Domain_Value_Definition: Oil seep, 
          reported but unconfirmed
          Enumerated_Domain_Value_Definition_Source: author
        Enumerated_Domain:
          Enumerated_Domain_Value: 6
          Enumerated_Domain_Value_Definition: Oil seep, 
          reported but doubtful or disproved
          Enumerated_Domain_Value_Definition_Source: author
        Enumerated_Domain:
          Enumerated_Domain_Value: 7
          Enumerated_Domain_Value_Definition: Gas seep, 
          confirmed
          Enumerated_Domain_Value_Definition_Source: author
        Enumerated_Domain:
          Enumerated_Domain_Value: 8
          Enumerated_Domain_Value_Definition: Gas seep, 
          reported but unconfirmed
          Enumerated_Domain_Value_Definition_Source: author
        Enumerated_Domain:
          Enumerated_Domain_Value: 9
          Enumerated_Domain_Value_Definition: Gas seep, 
          reported but doubtful or disproved
          Enumerated_Domain_Value_Definition_Source: author
        Enumerated_Domain:
          Enumerated_Domain_Value: 10
          Enumerated_Domain_Value_Definition: Outcrop of 
          oil shale or oil-bearing rock
          Enumerated_Domain_Value_Definition_Source: author
    Attribute:
      Attribute_Label: IOP_ID
      Attribute_Definition: Indicated location within the 
      central Alaska province boundary.  Numbers increase 
      from northwest to southeast.
      Attribute_Definition_Source: author
      Attribute_Domain_Values:
        Range_Domain:
          Range_Domain_Minimum: 1
          Range_Domain_Maximum: 95
          Attribute_Units_of_Measure: NO UNITS
Distribution_Information:
  Distributor:
    Contact_Information:
      Contact_Organization_Primary:
        Contact_Organization: United States Geological 
        Survey
      Contact_Address:
        Address_Type: mailing address
        Address: 345 Middlefield Road
        City: Menlo Park
        State_or_Province: CA
        Postal_Code: 94025
        Country: USA
  Resource_Description: Downloadable COVERAGE (ARCInfo 
  vector data) format.  Coverages are stored in 
  uncompressed ARC export format (ARCInfo version 8.1.2).  
  ArcInfo export files (files with the .e00 file extension) 
  can be converted into ARCInfo coverages in ARCInfo and 
  can be read by some other Geographic Information Systems, 
  such as MapInfo via ARCLink and ESRI's ArcView (limited 
  versions of this software are available for free from 
  ESRI's web site: http://www.esri.com).
  Distribution_Liability:
    The U.S. Geological Survey (USGS) provides these 
    geographic data "as is."  The USGS makes no guarantee 
    or warranty concerning the accuracy of information 
    contained in the geographic data.  The USGS further 
    makes no warranties, either expressed or implied, as to 
    any other matter whatsoever, including, without 
    limitation, the condition of the product, or its 
    fitness for any particular purpose.  The burden for 
    determining fitness for use lies entirely with the 
    user.  Although these data have been processed 
    successfully on computers at the USGS, no warranty, 
    expressed or implied, is made by the USGS regarding the 
    use of these data on any other system, nor does the 
    fact of distribution constitute or imply any such 
    warranty.
    In no event shall the USGS have any liability 
    whatsoever for payment of any consequential, 
    incidental, indirect, special, or tort damages of any 
    kind, including, but not limited to, any loss of 
    profits arising out of use of or reliance on the 
    geographic data or arising out of the delivery, 
    installation, operation, or support by USGS.
    This digital database of historic indication of 
    petroleum in the central Alaska province is 1:2,500,000 
    map-scale and any derivative maps thereof, is not meant 
    to be used or displayed at any scale larger than 
    1:2,500,000.
  Standard_Order_Process:
    Digital_Form:
      Digital_Transfer_Information:
        Transfer_Size: 0.036
    Fees: none
Metadata_Reference_Information:
  Metadata_Date: 20040202
  Metadata_Review_Date: 2002
  Metadata_Contact:
    Contact_Information:
      Contact_Person_Primary:
        Contact_Person: Richard Stanley
        Contact_Organization: US Geological Survey
      Contact_Address:
        Address_Type: 345 Middlefield Road
        City: Menlo Park
        State_or_Province: CA
        Postal_Code: 94025
      Contact_Voice_Telephone: 650-329-4918
  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_Security_Information:
    Metadata_Security_Classification_System: none
    Metadata_Security_Classification: Unclassified
  Metadata_Extensions:
    Online_Linkage: 
    http://www.esri.com/metadata/esriprof80.html
    Profile_Name: ESRI Metadata Profile
