Geologic Map of Science Study ARea 1B, West Mangala Valles Region of Mars (Specia MTM- 08157 Quadrangle)

Table of Contents



IDENTIFICATION_INFORMATION

Citation: Citation_Information: Originator: Mary G. Chapman, Harold Masursky, and Arthur L. Dial Jr. Publication_Date: 1991 Title: Geologic Map of Science Study ARea 1B, West Mangala Valles Region of Mars (Specia MTM- 08157 Quadrangle) Edition: Geospatial_Data_Presentation_Form: Map Publication_Information: Publication_Place: Reston, VA Publisher: Department of Interior - United States Geological Survey Other_Citation_Details: Miscellaneous Investigations Series Published by the US Geolgoical Survey, 1991 Online_Linkage: Larger_Work_Citation: Citation_Information: Originator: United States Geological Survey Publication_Date: Title: 1 Publication_Information: Publication_Place: Reston, VA Publisher: Department of Interior, United States Geological Survey Online_Linkage: Description: Abstract: The west Mangala Valles area merits detailed geologic study because it contains several small channels whose ages can be determined relative to geologic units that range in age from early (Noachian) to late (Amazonian) periods of Martian history. Because the small channels are of three ages and channels of each age are of a geomorphic type unique to that age, their study increases our understanding of the continuity of fluvial processes in the evoluntionary history of Mars. For these reasons, part of the area is a proposed site for a sample-return mission to Mars. Purpose: Mars Geology Supplemental_Information: The map base is a composite of parts of two Viking 1:500,000-scale photomosaics (U.S. Geological Survey,1985). These photomosaics are based on high-resolution images except in the area hat now forms the northwest corner of the composite, for which only lower resolution images are available. Because the latter images were acquired at sun angles opposite these on the high-resolution images, the "mesa" that appears in this area is actually a depression. Some map units correspond or are partly equivalent to units on smaller scale maps (Mutch and Morris, 1979, Scott and Tanaka, 1986). However, in many places interpretations and contacts have been revised to reflect information visible on high-resolution Viking images, geomorphic details on these images were clarified by spatial filtering (Condit and Chavez, 1979). The depths of channels, thicknesses of geologic units, and heights of scarps were obtained in places using photoclinometric methods of Davis and Scott (1984). The relative ages of geologic units and geomorphic features such as small channels and faults were established by stratigraphic realtions and supported by crater counts. Time_Period_of_Content: Time_Period_Information: Range_of_Dates/Times: Beginning_Date: Unknown Ending_Date: July 28, 1989 Currentness_Reference: Status: Progress: Complete Maintenance_and_Update_Frequency: None planned Spatial_Domain: Bounding_Coordinates: West_Bounding_Coordinate: -160.1014 East_Bounding_Coordinate: -154.8987 North_Bounding_Coordinate: -5.8988 South_Bounding_Coordinate: -11.1016 Keywords: Theme: Theme_Keyword_Thesaurus: None Theme_Keyword: Mars Theme_Keyword: Geology Theme_Keyword: Candidate_Landing_Site Place: Place_Keyword_Thesaurus: None Place_Keyword: Mangala Valles Place_Keyword: Amazonis Planitia Place_Keyword: Terra Sirenum Place_Keyword: Memnonia Fossae Place_Keyword: Mars Place_Keyword: highlands-lowlands_boundary Access_Constraints: None Use_Constraints: None 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 g:\users\shamlin\mars_sarah\mangala_met\i-2087_g.shp Top

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. 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: Publication_Date: Title: Edition: Geospatial_Data_Presentation_Form: map Publication_Information: Publication_Place: Publisher: Other_Citation_Details: Online_Linkage: Larger_Work_Citation: Citation_Information: Originator: Publication_Date: Title: Publication_Information: Publication_Place: Publisher: Online_Linkage: Source_Scale_Denominator: 1:502,000 Type_of_Source_Media: mylar maps 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: David H. Scott Originator: James M. Dohm Originator: Donald J. Applebee Publication_Date: Title: Edition: Geospatial_Data_Presentation_Form: map Publication_Information: Publication_Place: Publisher: Other_Citation_Details: Online_Linkage: Larger_Work_Citation: Citation_Information: Originator: Publication_Date: Title: Publication_Information: Publication_Place: Publisher: Online_Linkage: Source_Scale_Denominator: 1 Type_of_Source_Media: mylar maps 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: Map preparation was on mylar or acetate made from USGS negatives. All features were scanned at 50 microns and then vectorized and attributed in Arc/INFO Source_Used_Citation_Abbreviation: Process_Date: 1998-1999 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: Top

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: 273 Top

SPATIAL_REFERENCE_INFORMATION

Horizontal_Coordinate_System_Definition: Planar: Map_Projection: Map_Projection_Name: Transverse Mercator Transverse_Mercator: Scale_Factor_at_Central_Meridian: 1.000000 Longitude_of_Central_Meridian: -150.000000 Latitude_of_Projection_Origin: 0.000000 False_Easting: 0.000000 False_Northing: 0.000000 Planar_Coordinate_Information: Planar_Coordinate_Encoding_Method: Coordinate pair Coordinate_Representation: Abscissa_Resolution: Ordinate_Resolution: Planar_Distance_Units: Meters Geodetic_Model: Horizontal_Datum_Name: None Ellipsoid_Name: Mars Semi-major_Axis: 3393400.0 Denominator_of_Flattening_Ratio: 129.043 Top

ENTITY_AND_ATTRIBUTE_INFORMATION

Overview_Description: Entity_and_Attribute_Overview: Entity_and_Attribute_Detail_Citation: Top

DISTRIBUTION_INFORMATION

Distributor: Contact_Information: Contact_Organization_Primary: Contact_Organization: United States Geoogical 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 Top

METADATA_REFERENCE_INFORMATION

Metadata_Date: 08/09/2000 Metadata_Review_Date: Metadata_Contact: Contact_Information: Contact_Organization_Primary: Contact_Organization: United States Geological Survey Contact_Person: Stephanie Dudash Contact_Position: Physical 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 Top