GEOLOGIC MAP OF THE BACH (H-15) QUADRANGLE OF MERCURY

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: Robert G. Strom
      Originator: Michael C. Malin
      Originator: Martha A. Leake
      Publication_Date: 1990
      Title: GEOLOGIC MAP OF THE BACH (H-15) QUADRANGLE OF MERCURY
      Edition: 
      Geospatial_Data_Presentation_Form: Map
      Publication_Information:
        Publication_Place: Reston, VA
        Publisher: U.S. Geological Survey
      Other_Citation_Details:
        Miscellaneous Investigations Series, I-2015
        Published by the US Geological Survey, 1990
      Online_Linkage: 
      Larger_Work_Citation:
        Citation_Information:
          Originator: 
          Publication_Date: 
          Title: 
          Publication_Information:
            Publication_Place: 
            Publisher: 
          Online_Linkage: 
  Description:
    Abstract:
      The entire mapped area was covered by near-vertical
      photography from the second encounter, and the eastern
      part, from long 15° to about 110°, was covered by oblique
      photography from the first encounter. No third-encounter
      images were acquired. The entire visible area may be viewed
      stereoscopically by combining images from the first and
      second encounters taken at different viewing angles or by
      combining second-encounter images of the same area taken at
      different viewing angles. These combinations provided
      excellent qualitative control of topographic relief and a
      good quantitative photogrammetric base. However,
      sun-elevation angles of the images are limited to less than
      25°, and image resolutions are no higher than about 0.5 km
      per picture element. Therefore, the south polar geologic
      map reflects mostly large-scale processes and topographic
      information, whereas other mercurian quadrangle maps
      benefit from greater albedo
      discrimination and, in some cases, higher resolution.
    Purpose:
    Supplemental_Information:
      The imaged part of the Bach region covers about 1,570,000
      km 2 . Its surface consists of craters of a wide variety of
      sizes and morphologies, as well as plains units, scarps,
      and ridges. It includes three double-ring basins that range
      from 140 to 200 km in diameter: Bach (after which the
      region is named), Cervantes, and Bernini. Another large
      crater, Pushkin, is 240 km in diameter and occurs at the
      map boundary at lat 65° S., long 25°. Both Bach and Bernini
      display extensive fields of secondary craters. An unusual
      area between lat 69° and 80° S. and long 30° and 60°
      consists of young, relatively smooth plains marked by many
      flat-topped ridges unlike any seen in other areas of
      Mercury. Scarps similar to Discovery Rupes (in the
      Discovery quadrangle adjacent to the north) are relatively
      common throughout the Bach region. The most common terrain
      units in the region are the plains units, which display a
      wide range of small-crater densities.
  Time_Period_of_Content:
    Time_Period_Information:
      Range_of_Dates/Times:
        Beginning_Date: Unknown
        Ending_Date: 1990
    Currentness_Reference: 
  Status:
    Progress: Complete
    Maintenance_and_Update_Frequency: None planned
  Spatial_Domain:
    Bounding_Coordinates:
      West_Bounding_Coordinate: -1080851.2500
      East_Bounding_Coordinate: 1071771.1250
      North_Bounding_Coordinate: 1092449.8750
      South_Bounding_Coordinate: -1094289.1250
  Keywords:
    Theme:
      Theme_Keyword_Thesaurus: None
      Theme_Keyword: Mercury
      Theme_Keyword: Geology
    Place:
      Place_Keyword_Thesaurus: None
      Place_Keyword: Bach_quadrangle
      Place_Keyword: Mercury
      Place_Keyword: Bach_Basin
      Place_Keyword: Cervantes_Basin
      Place_Keyword: Bernini_Basin
  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\mercury\h2015\h2015_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: Robert G. Strom
          Originator: Michael C. Malin
          Originator: Martha A. Leake
          Publication_Date: 1990
          Title: GEOLOGIC MAP OF THE BACH (H-15) QUADRANGLE OF MERCURY
          Edition: 
          Geospatial_Data_Presentation_Form: map
          Publication_Information:
            Publication_Place: Reston, VA
            Publisher: U.S. Geological Survey
          Other_Citation_Details:
            Miscellaneous Investigations Series, I-2015
            Published by the US Geological Survey, 1990
          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: Robert G. Strom
          Originator: Michael C. Malin
          Originator: Martha A. Leake
          Publication_Date: 1990
          Title: GEOLOGIC MAP OF THE BACH (H-15) QUADRANGLE OF MERCURY
          Edition: 
          Geospatial_Data_Presentation_Form: map
          Publication_Information:
            Publication_Place: Reston, VA
            Publisher: U.S. Geological Survey
          Other_Citation_Details:
            Miscellaneous Investigations Series, I-2015
            Published by the US Geological Survey, 1990
          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: 421
 
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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: Mercury
      Semi-major_Axis: 2439000.0
      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: 08/22/00
  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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