Identification_Information:
  Citation:
    Citation_Information:
      Originator: Scott C. Mest, Geologist
      Publication_Date: 2014
      Title: Geologic Map of MTM -30247, -35247 and -40247 Quadrangles, Reull Vallis Region of Mars, 1M, SIM 3254
      Edition: 1
      Geospatial_Data_Presentation_Form: map
      Series_Information:
        Series_Name: U.S. Geological Survey Scientific Investigations Map
        Issue_Identification: SIM 3245
  Description:
    Abstract: Mars Transverse Mercator (MTM) -30247, -35247, and -40247 quadrangles cover a portion of southern Hesperia Planum and the highlands of eastern Promethei Terra, east of the Hellas basin. The map area (lat 27.5-42.5¡ S., long 110-115¡ E.) consists of cratered ancient highland materials of moderate relief, isolated knobs and massifs of rugged mountainous materials, extensive tracts of plains, and surficial deposits. Waikato and Reull Valles extend through plains and highland terrains. Regional slopes are generally to the southwest toward the Hellas basin, but local slopes (for example, highlands to plains) dominate the landscape.
    Purpose: To produce an up-to-date global geologic map for the Reull Vallis Region of Mars using modern bases including the Mars Global Surveyor (MGS) Mars Orbiter Laser Altimeter (MOLA) digital elevation model (DEM) (463 m/pixel resolution at lower latitudes to 115 m/pixel near the poles) (Smith and others, 2001) and the Mars Odyssey (ODY) Thermal Emission Imaging System (THEMIS) daytime infrared (IR) image mosaic (100 m/pixel) (Christensen and others, 2004).
  Status:
    Progress: Complete
    Maintenance_and_Update_Frequency: None planned
  Spatial_Domain:
    Bounding_Coordinates:
      West_Bounding_Coordinate: 109.88
      East_Bounding_Coordinate: 116.014
      North_Bounding_Coordinate: 42.609
      South_Bounding_Coordinate: -27.410
  Keywords:
    Theme:
      Theme_Keyword_Thesaurus: NASA
      Theme_Keyword: Geology, Structure, Scientific Investigations Map, Contacts, Craters, Nomenclature
    Theme:
      Theme_Keyword_Thesaurus: ISO 19115 Topic Categories
      Theme_Keyword: geoscientificInformation
      Theme_Keyword: structure
    Place:
      Place_Keyword_Thesaurus: None
      Place_Keyword: Mars, Reull Vallis Region of Mars, -30247 Quadrangle, -35247 Quadrangle, -40247 Quadrangle, southern Hesperia Planum, highlands of eastern Promethei Terra, east of the Hellas
      Place_Keyword: basin
    Temporal:
      Temporal_Keyword_Thesaurus: None
      Temporal_Keyword: Early, Middle, and Late Noachian; Early and Late Hesperian; and Early, Middle, and Late Amazonian
  Access_Constraints: None
  Use_Constraints: please cite authors.
  Point_of_Contact:
    Contact_Information:
      Contact_Organization_Primary:
        Contact_Organization: Planetary Science Institute
        Contact_Person: Scott C. Mest
      Contact_Address:
        Address_Type: mailing
        Address: Planetary Geodynamics Laboratory (Code 698), Bldg. 34, Rm. S288
        City: Greenbelt
        State_or_Province: MD
        Postal_Code: 20771
        Country: US
      Contact_Voice_Telephone: 301-614-6495
      Contact_Facsimile_Telephone: 301-614-6522
      Contact_Electronic_Mail_Address: mest@psi.edu
  Data_Set_Credit: Scott C. Mest and David A. Crown, 2014, Geologic Map of MTM -30247, -35247 and -40247 Quadrangles, Reull Vallis Region of Mars, Scale 1:1,000,000, U.S. Geological Survey Scientific Investigations Map SIM 3245. URL: http://pubs.usgs.gov/sim/3245
  Security_Information:
    Security_Classification_System: none
    Security_Classification: Unclassified
    Security_Handling_Description: none
  Native_Data_Set_Environment: Esri ArcGIS 10.0
Data_Quality_Information:
  Logical_Consistency_Report: For the digital product presented herein, we used Mars Orbiter Laser Altimeter (MOLA) dataset to register the geologic map. The average accuracy of each point is originally ~100 meters in horizontal position and ~1 meter in radius (Neumann and others, 2003). However, the total elevation uncertainty is at least ±3 meters due to the global error in the areoid (±1.8 meters) and regional uncertainties in its shape. The digital lines were drawn at approximately 1:2M scale.
  Completeness_Report: Geologic layers are horizontally tied to MOLA at a 1:20M scale. MOLA is horizontally accurate to  the surface of Mars at 100 meters. 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.
  Lineage:
    Source_Information:
      Source_Citation:
        Citation_Information:
          Publication_Date: 20011025
          Title: Mars Orbiter Laser AltimeterExperiment summary after the first year of global mapping of Mars
          Edition: 1
          Geospatial_Data_Presentation_Form: document
          Series_Information:
            Series_Name: Journal of Geophysical Research: Planets
            Issue_Identification: Volume 106, Issue E10
          Online_Linkage: http://onlinelibrary.wiley.com/doi/10.1029/2000JE001364/references
      Type_of_Source_Media: onLine
      Source_Citation_Abbreviation: Mars Orbiter Laser AltimeterExperiment summary after the first year of global mapping of Mars
      Source_Contribution: The MOLA-derived shaded relief image used for the base represents more than 600 million single altimeter measurements gathered between 1999 and 2001, adjusted for consistency and converted to planetary radii values. Using these values, elevations above the areoid were determined from the Martian gravity field solution GMM-2B (Lemoine and others, 2001). The average accuracy of each point is originally ~100 m in horizontal position and ~1 m in radius (Neumann and others, 2001). However, the total elevation uncertainty is at least ±3 m due to the global error in the areoid (±1.8 m) and regional uncertainties in its shape. The measurements were converted into a digital elevation model (DEM) using Generic Mapping Tools software, with a resolution of 128 pixels/degree (or 463 m/pixel at the equator). A shaded relief image was generated from the DEM with a sun angle of 45¡ from horizontal and a sun azimuth of 335¡, as measured clockwise from north. The artificially illuminated MOLA DEM serves as the base for the printed geologic map.
    Source_Information:
      Source_Citation:
        Citation_Information:
          Publication_Date: 20021206
          Title: The Thermal Emission Imaging System (THEMIS) for the Mars 2001 Odyssey mission
          Edition: 1
          Geospatial_Data_Presentation_Form: document
          Series_Information:
            Series_Name: Space Science Reviews
            Issue_Identification: 110
          Online_Linkage: http://www.mars.asu.edu/christensen/docs/christensen_themis_ssr.pdf
      Type_of_Source_Media: onLine
      Source_Citation_Abbreviation: The Thermal Emission Imaging System (THEMIS) for the Mars 2001 Odyssey mission
      Source_Contribution: The THEMIS daytime and nighttime IR  230 m/pixel global mosaics (credit: Christensen, P.R., N.S. Gorelick, G.L. Mehall, and K.C. Murray, THEMIS Public Data Releases, Planetary Data System node, Arizona State University, http://themis-data.asu.edu) represent thermal infrared energy emitted in nine wavelength bands, which relate to the temperature and emissivity of the surface (Christensen and others, 2004). see SIM 3245 Pamphlet.
    Process_Step:
      Process_Description: We used the Environmental Systems Research Institute, Inc. (Redlands, CA) ArcGIS software package to co-register and analyze available datasets. Transverse Mercator versions of MOLA and THEMIS IR mapping bases were created in lossless PNG and GeoTiff format. Linework was drafted for the final scale at 1:1,000,000.
      Process_Date: 20110608
      Process_Contact:
        Contact_Information:
          Contact_Organization_Primary:
            Contact_Organization: Planetary Science Institute
            Contact_Person: Scott C. Mest
          Contact_Address:
            Address_Type: mailing
            Address: Planetary Geodynamics Laboratory (Code 698), Bldg. 34, Rm. S288
            City: Greenbelt
            State_or_Province: MD
            Postal_Code: 20771
            Country: US
          Contact_Voice_Telephone: 301-614-6495
          Contact_Facsimile_Telephone: 301-614-6522
          Contact_Electronic_Mail_Address: mest@psi.edu
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: 443
    SDTS_Terms_Description:
      SDTS_Point_and_Vector_Object_Type: String
      Point_and_Vector_Object_Count: 546
    SDTS_Terms_Description:
      SDTS_Point_and_Vector_Object_Type: String
      Point_and_Vector_Object_Count: 803
    SDTS_Terms_Description:
      SDTS_Point_and_Vector_Object_Type: GT-polygon composed of chains
      Point_and_Vector_Object_Count: 45
    SDTS_Terms_Description:
      SDTS_Point_and_Vector_Object_Type: String
      Point_and_Vector_Object_Count: 513
    SDTS_Terms_Description:
      SDTS_Point_and_Vector_Object_Type: Entity point
      Point_and_Vector_Object_Count: 3495
    SDTS_Terms_Description:
      SDTS_Point_and_Vector_Object_Type: GT-polygon composed of chains
      Point_and_Vector_Object_Count: 441
Spatial_Reference_Information:
  Horizontal_Coordinate_System_Definition:
    Planar:
      Map_Projection:
        Map_Projection_Name: ReullVallis MarsTranMerc clon110 sphere
        Transverse_Mercator:
          Scale_Factor_at_Central_Meridian: 1.0
          Longitude_of_Central_Meridian: 110.0
          Latitude_of_Projection_Origin: 0.0
          False_Easting: 0.0
          False_Northing: 0.0
      Planar_Coordinate_Information:
        Planar_Coordinate_Encoding_Method: coordinate pair
        Coordinate_Representation:
          Abscissa_Resolution: 0.0001
          Ordinate_Resolution: 0.0001
        Planar_Distance_Units: meter
    Geodetic_Model:
      Horizontal_Datum_Name: D Mars 2000 Sphere
      Ellipsoid_Name: Mars 2000 IAU IAG Sphere
      Semi-major_Axis: 3396190.0
      Denominator_of_Flattening_Ratio: 0.0
Entity_and_Attribute_Information:
  Detailed_Description:
    Entity_Type:
      Entity_Type_Label: SIM3245_ReullVallis_Geology
      Entity_Type_Definition: Polygon feature class, geologic unit polygon feature class. Contains a "UNIT_SYM" field denoting the unit abbreviated name and "TYPE" a short description. "Shape_Area" is the Transverse Mercator calculated area of the polygon in m^2.
      Entity_Type_Definition_Source: USGS
  Detailed_Description:
    Entity_Type:
      Entity_Type_Label: SIM3245_ReullVallis_Contacts
      Entity_Type_Definition: Line feature class, contains a "TYPE" field for the geologic unit and map boundaries including symbol types: Certain, Approximate, Inferred. "Shape_Length" is the Transverse Mercator calculated length of the feature in meters.
      Entity_Type_Definition_Source: USGS
  Detailed_Description:
    Entity_Type:
      Entity_Type_Label: SIM3245_ReullVallis_Structures
      Entity_Type_Definition: Structural layer. Contains a "TYPE" field denoting the structure type including "Crater rim", "Ridge, degraded", and "Ridge, pristine", "Scarp". "Shape_Length" is the Transverse Mercator calculated length of the feature in meters.
      Entity_Type_Definition_Source: USGS
  Detailed_Description:
    Entity_Type:
      Entity_Type_Label: SIM3245_ReullVallis_Surfaces
      Entity_Type_Definition: Structural layer. Contains a "SurfaceType" field denoting the type including "knobby terrain" and "secondary craters". "Shape_Area" is the Transverse Mercator calculated area of the polygon in m^2.
      Entity_Type_Definition_Source: USGS
  Detailed_Description:
    Entity_Type:
      Entity_Type_Label: SIM3245_ReullVallis_Valleys
      Entity_Type_Definition: Structural layer. Contains a "TYPE" field denoting the valley type including "Channel" and "Gully".  "Shape_Length" is the Transverse Mercator calculated length of the feature in meters.
      Entity_Type_Definition_Source: USGS
  Detailed_Description:
    Entity_Type:
      Entity_Type_Label: SIM3245_ReullVallis_Craters
      Entity_Type_Definition: Contains a "DIAM_km" field with the diameter of the crater in and kilometers "UNIT_SYM" field denoting the intersecting geologic unit.
      Entity_Type_Definition_Source: USGS
Distribution_Information:
  Distributor:
    Contact_Information:
      Contact_Organization_Primary:
        Contact_Organization: U.S. Geological Survey
        Contact_Person: Information Services
      Contact_Position: 
      Contact_Address:
        Address_Type: mailing
        Address: 25286 Federal Center
        City: Denver
        State_or_Province: CO
        Postal_Code: 80225
      Contact_Voice_Telephone: 928-556-7100
      Contact_Electronic_Mail_Address: thare@usgs,gov
  Distribution_Liability: None
  Standard_Order_Process:
    Digital_Form:
      Digital_Transfer_Option:
        Online_Option:
          Computer_Contact_Information:
            Network_Address:
              Network_Resource_Name: http://pubs.usgs.gov/sim/3245
    Fees: None
    Ordering_Instructions: Digital download using a web browser
  Available_Time_Period:
    Time_Period_Information:
      Single_Date/Time:
        Calendar_Date: 20140715
Metadata_Reference_Information:
  Metadata_Date: 20140519
  Metadata_Contact:
    Contact_Information:
      Contact_Organization_Primary:
        Contact_Organization: U.S. Geologic Survey
        Contact_Person: Trent Hare
      Contact_Position: Cartographer
      Contact_Address:
        Address_Type: mailing and physical
        Address: 2255 North Gemini Drive
        City: Flagstaff
        State_or_Province: AZ
        Postal_Code: 86001
        Country: US
      Contact_Voice_Telephone: 928-556-7100
      Contact_Electronic_Mail_Address: thare@usgs,gov
  Metadata_Standard_Name: FGDC Content Standard for Digital Geospatial Metadata
  Metadata_Standard_Version: FGDC-STD-001-1998
  Metadata_Time_Convention: local time
  Metadata_Use_Constraints: None
  Metadata_Security_Information:
    Metadata_Security_Classification: Unclassified