GEOLOGIC MAP OF THE HATHOR REGION (Jg-15) OF GANYMEDE

Table of Contents

Identification Information
Data Quality Information
Spatial Data Organization Information
Spatial Reference Information
Entity and Attribute Information
Distribution Information
Metadata Reference Information


 
 

IDENTIFICATION_INFORMATION

 
 
  Citation:
    Citation_Information:
      Originator: René A. De Hon
      Originator: Andrew C. Leith
      Originator: William B. McKinnon
      Publication_Date: 1994
      Title: GEOLOGIC MAP OF THE HATHOR REGION (Jg-15) OF GANYMEDE
      Edition: 
      Geospatial_Data_Presentation_Form: Map
      Publication_Information:
        Publication_Place: Reston, VA
        Publisher: U.S. Geological Survey
      Other_Citation_Details:
        Miscellaneous Investigations Series I-2388
        Published by the US Geological Survey, 1994
      Online_Linkage: 
      Larger_Work_Citation:
        Citation_Information:
          Originator: 
          Publication_Date: 
          Title: 
          Publication_Information:
            Publication_Place: 
            Publisher: 
          Online_Linkage: 
  Description:
    Abstract:
      Ganymede, the largest of Jupiter's sate llites and one and
      a half times the size of Earth’s Moon, shows evidence of
      surface processes that are strikingly different from those
      of terrestrial bodies. In contrast to the rocky crusts of
      the inner planets, the outer crust of Ganymede is composed
      of a water-ice and rock mixture with ice predominating. The
      surface has had a longer and more complex tectonic history
      than that of the Moon or Mercury and a different style of
      volcanism than that of the Earth, Venus, or Mars. The
      global geology of Ganymede was mapped by Shoemaker and
      others (1982). Ganymede’s surface is chiefly composed of
      crater materials, light materials, and dark materials
      (Smith and others, 1979a, b; Lucchitta, 1980; Shoemaker and
      others, 1982). (Light and dark are relative terms; even the
      dark material on Ganymede is brighter than the lunar
      highlands.) The most pervasive unit in the Hathor region is
      light grooved material. The region also contains materials
      of the craters Isis and Ptah and of two palimpsests, as
      well as ejecta from the Gilgamesh basin (in Jg-12, centered
      about 150 km north of the Hathor map border).
    Purpose:
    Supplemental_Information:
      Information for the geologic mapping of Ganymede comes from
      images by the Voyager 1 and 2 spacecraft during their
      flybys through the Jovian system in 1979. Approximately 40
      images of the Jg-15 region were acquired, although half of
      the region was either not imaged at all or imaged only at
      very poor resolution. Resolution and look angle are varied
      even over the better covered half. Resolution ranges from
      poor for obliquely viewed scenes to 550 m per pixel for the
      highest resolution frames. This resolution is the best
      obtained for Ganymede by Voyager (see resolution diagram).
      Illumination ranges from extremely low sun angles along the
      300° and 120° meridians, marking the approximate location
      of the terminator during the Voyager 2 flyby, to about 65°
      elsewhere. The low sun angles result in the loss of
      topographic detail in shadows and the absence of albedo
      information; hence, correlation of units between areas of
      high- and low-sun-angle
      illumination is difficult. Topography and morphology are
      difficult to discern in the poorly imaged portion of the
      map region. Therefore, materials here are mapped as albedo
      units and crater materials only. The albedo units may
      include any or all of the units in the better imaged
      portion of the region or even entirely different materials.
  Time_Period_of_Content:
    Time_Period_Information:
      Range_of_Dates/Times:
        Beginning_Date: Unknown
        Ending_Date: 1994
    Currentness_Reference: 
  Status:
    Progress: Complete
    Maintenance_and_Update_Frequency: None planned
  Spatial_Domain:
    Bounding_Coordinates:
      West_Bounding_Coordinate: -1064062.5000
      East_Bounding_Coordinate: 1166721.3750
      North_Bounding_Coordinate: 1170149.2500
      South_Bounding_Coordinate: -1170683.6250
  Keywords:
    Theme:
      Theme_Keyword_Thesaurus: None
      Theme_Keyword: Jovian_Sattelites
      Theme_Keyword: GANYMEDE
    Place:
      Place_Keyword_Thesaurus: None
      Place_Keyword: HATHOR_REGION
      Place_Keyword: GANYMEDE
      Place_Keyword: Galileo_Regio
  Access_Constraints:
  Use_Constraints:
  Point_of_Contact:
    Contact_Information:
      Contact_Organization_Primary:
        Contact_Organization: United States Geological Survey
        Contact_Person: 
      Contact_Position: Map Distribution
      Contact_Address:
        Address_Type: mailing and physical address
        Address: Box 25286, Federal Center
        City: Denver
        State_or_Province: CO
        Postal_Code: 80225
        Country: USA
      Contact_Voice_Telephone: 
      Contact_Facsimile_Telephone: 
      Contact_Electronic_Mail_Address: 
      Hours_of_Service: 
  Native_Data_Set_Environment:
    ArcView version 3.1 shapefile format
    c:\alisa\geocd\shpfiles\ganymede\g2388\g2388_g.shp
 
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DATA_QUALITY_INFORMATION

 
 
  Attribute_Accuracy:
    Attribute_Accuracy_Report:
      All attributes created during the creation process were
      verified by displaying the lines in both the database and
      the spatial coverage, but no formal tests were performed.
  Logical_Consistency_Report:
    These data are believed to be logically consistent, though
    no tests were performed. Line geometry is topologically clean.
  Completeness_Report:
  Positional_Accuracy:
    Horizontal_Positional_Accuracy:
      Horizontal_Positional_Accuracy_Report:
    Vertical_Positional_Accuracy:
      Vertical_Positional_Accuracy_Report:
  Lineage:
    Source_Information:
      Source_Citation:
        Citation_Information:
          Originator: René A. De Hon
          Originator: Andrew C. Leith
          Originator: William B. McKinnon
          Publication_Date: 1994
          Title: GEOLOGIC MAP OF THE HATHOR REGION (Jg-15) OF GANYMEDE
          Edition: 
          Geospatial_Data_Presentation_Form: map
          Publication_Information:
            Publication_Place: 
            Publisher: U.S. Geological Survey
          Other_Citation_Details:
            Miscellaneous Investigations Series I-2388
            Published by the US Geolgoical Survey, 1994
          Online_Linkage: 
          Larger_Work_Citation:
            Citation_Information:
              Originator: 
              Publication_Date: 
              Title: 
              Publication_Information:
                Publication_Place: 
                Publisher: 
              Online_Linkage: 
      Source_Scale_Denominator: 1:5,000,000
      Type_of_Source_Media: 
      Source_Time_Period_of_Content:
        Time_Period_Information:
          Range_of_Dates/Times:
            Beginning_Date: 
            Ending_Date: 
        Source_Currentness_Reference: 
      Source_Citation_Abbreviation: 
      Source_Contribution:
    Source_Information:
      Source_Citation:
        Citation_Information:
          Originator: René A. De Hon
          Originator: Andrew C. Leith
          Originator: William B. McKinnon
          Publication_Date: 1994
          Title: GEOLOGIC MAP OF THE HATHOR REGION (Jg-15) OF GANYMEDE
          Edition: 
          Geospatial_Data_Presentation_Form: map
          Publication_Information:
            Publication_Place: 
            Publisher: U.S. Geological Survey
          Other_Citation_Details:
            Miscellaneous Investigations Series I-2388
            Published by the US Geological Survey, 1994
          Online_Linkage: 
          Larger_Work_Citation:
            Citation_Information:
              Originator: 
              Publication_Date: 
              Title: 
              Publication_Information:
                Publication_Place: 
                Publisher: 
              Online_Linkage: 
      Source_Scale_Denominator: 1:5,000,000
      Type_of_Source_Media: 
      Source_Time_Period_of_Content:
        Time_Period_Information:
          Range_of_Dates/Times:
            Beginning_Date: 
            Ending_Date: 
        Source_Currentness_Reference: 
      Source_Citation_Abbreviation: 
      Source_Contribution:
    Process_Step:
      Process_Description:
      Source_Used_Citation_Abbreviation: 
      Process_Date: 
      Source_Produced_Citation_Abbreviation: 
      Process_Contact:
        Contact_Information:
          Contact_Person_Primary:
            Contact_Organization: United States Geological Survey
            Contact_Person: Trent Hare
          Contact_Position: Computer Specialist
          Contact_Address:
            Address_Type: mailing and physical address
            Address: 2255 N Gemini Dr
            City: Flagstaff
            State_or_Province: AZ
            Postal_Code: 86001
            Country: USA
          Contact_Voice_Telephone: 520-556-7126
          Contact_Facsimile_Telephone: 
          Contact_Electronic_Mail_Address: thare@usgs.gov
          Hours_of_Service: 
 
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SPATIAL_DATA_ORGANIZATION_INFORMATION

 
 
  Direct_Spatial_Reference_Method: Vector
  Point_and_Vector_Object_Information:
    SDTS_Terms_Description:
      SDTS_Point_and_Vector_Object_Type: GT-polygon composed of chains
      Point_and_Vector_Object_Count: 236
 
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SPATIAL_REFERENCE_INFORMATION

 
 
  Horizontal_Coordinate_System_Definition:
    Planar:
      Map_Projection:
        Map_Projection_Name: POLAR
        Polar:
          Longitude_of_Projection_Center: 0
          Latitude_of_Projection_Center: -90
          False_Easting: 0.00000
          False_Northing: 0.00000
      Planar_Coordinate_Information:
        Planar_Coordinate_Encoding_Method: Coordinate pair
        Coordinate_Representation:
          Abscissa_Resolution: 1 meter
          Ordinate_Resolution: 1 meter
        Planar_Distance_Units: METERS
    Geodetic_Model:
      Horizontal_Datum_Name: None
      Ellipsoid_Name: Ganymede
      Semi-major_Axis: 2634500.0
      Denominator_of_Flattening_Ratio: 1.0
 
 
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ENTITY_AND_ATTRIBUTE_INFORMATION

 
 
  Overview_Description:
    Entity_and_Attribute_Overview:
    Entity_and_Attribute_Detail_Citation:
 
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DISTRIBUTION_INFORMATION

 
 
  Distributor:
    Contact_Information:
      Contact_Organization_Primary:
        Contact_Organization: United States Geological Survey
        Contact_Person: Trent Hare
      Contact_Position: Computer Specialist
      Contact_Address:
        Address_Type: mailing and physical address
        Address: 2255 N Gemini Dr
        City: Flagstaff
        State_or_Province: AZ
        Postal_Code: 86001
        Country: USA
      Contact_Voice_Telephone: 520-556-7126
      Contact_Facsimile_Telephone: 
      Contact_Electronic_Mail_Address: thare@usgs.gov
      Hours_of_Service: 
  Resource_Description:
  Distribution_Liability:
    Information has been obtained from sources believed to be
    reliable, but its accuracy and completeness and the
    opinions based thereon, are not guaranteed. As every effort
    is made to provide accurate information in this database,
    USGS would appreciate it if users could call to our
    attention any errors that may occur by communicating with
    the contact person.
 
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METADATA_REFERENCE_INFORMATION

 
 
  Metadata_Date: 08/18/00
  Metadata_Review_Date: 
  Metadata_Contact:
    Contact_Information:
      Contact_Organization_Primary:
        Contact_Organization: United States Geological Survey
        Contact_Person: Alisa Wenker
      Contact_Position: Science Technician
      Contact_Address:
        Address_Type: Mailing and physical address
        Address: 2255 N Gemini Dr
        City: Flagstaff
        State_or_Province: AZ
        Postal_Code: 86001
        Country: USA
      Contact_Voice_Telephone: 520-556-7126
      Contact_Facsimile_Telephone: 
      Contact_Electronic_Mail_Address: 
      Hours_of_Service: 
  Metadata_Standard_Name: FGDC CSDGM
  Metadata_Standard_Version: FGDC-STD-001-1998
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