Physics – Geophysics
Scientific paper
Jun 1991
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1991pggp.rept..154g&link_type=abstract
In NASA, Washington, Reports of Planetary Geology and Geophysics Program, 1990 p 154-155 (SEE N92-10728 01-91)
Physics
Geophysics
Mars Craters, Mars Surface, Planetary Evolution, Planetary Geology, Structural Properties (Geology), Topology, Landsat Satellites, Mars (Planet), Morphology, Terrain, Walls
Scientific paper
Preserved morphology around selected impact craters together with results from study of long term gradational evolution are used to assess processes responsible for crater modification in southern Ismenius Lacus. Results are compared with the gradational styles of selected terrestrial craters. Although most craters in the region display complex primary morphologies, some first order comparisons with the gradational styles around simple terrestrial craters may be valid. Nearly complete high resolution coverage provides a basis for studying morphologic features at scales comparable to those observed in LANDSAT TM images of terrestrial craters. It is concluded that the relative importance of gradational processes differs around the terrestrial and Martian craters considered here: Martian rimless morphologies are produced by mass wasting, eolian deposition/erosion, and limited fluvial incisement resulting in downwasting and significant backwasting of crater walls.
Grant Alex J.
Schultz Peter H.
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