Preliminary 1:500,000-scale geologic mapping of Claritas Fossae, Mars

Details Preliminary 1:500,000-scale geologic mapping of Claritas Fossae, Mars Preliminary 1:500,000-scale geologic mapping of Claritas Fossae, Mars

Jun 1991

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1991pggp.rept..584u&link_type=abstract

In NASA, Washington, Reports of Planetary Geology and Geophysics Program, 1990 p 584-585 (SEE N92-10728 01-91)

Mathematics

Logic

Geological Faults, Geological Surveys, Mars Surface, Planetary Mapping, Structural Properties (Geology), Tectonics, Topography, Mars Craters, Mars Photographs, Mars Volcanoes, Plateaus

Scientific paper

The Claritas Fossae system is a complex, linear fracture zone that extends from its northern intersection with Noctis Labyrinthus 1800 km south-southeast to its southern intersection with Thaumasia Fossae. The width of the fracture zone varies from 150 km in the north to 550 km in the south; topographic relief, based on radar data from Earth, is 1.0 to 1.5 km. Claritas Fossae and its coincident ridge or rise have been interpreted to be a horst with more than 8 km of vertical uplift, the greatest such uplift on Mars. Viking orbital images of sufficiently high resolution exist to provide the basis only for two 1:500,000 scale photomosaic base maps of Claritas Fossae. They extend en in echelon east and west, i.e., the southeast corner of the northern and western quadrangle (MTM-30102) is coincident with the northwest corner of the eastern and southern quadrangle (MTM-25107). Preliminary geologic maps of the two quadrangles were prepared. Materials in the quadrangles are Noachian and Hesperian age, and the quadrangles are characterized by the widespread occurrence of fractured and cratered plateau material, the oldest material in the map areas. Other information about the quadrangles is presented.

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