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

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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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