Crater evolutionary tracks

Details Crater evolutionary tracks Crater evolutionary tracks

Oct 1977

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1977icar...32..131s&link_type=abstract

Icarus, vol. 32, Oct. 1977, p. 131-146.

Astronomy and Astrophysics

Astronomy

2

Craters, Earth Surface, Geomorphology, Lunar Craters, Mars Surface, Astronomical Models, Erosion, Mariner 9 Space Probe, Mathematical Models

Scientific paper

The technique proposed in the present paper for studying planetary surface processes is based on the measurement of crater rim height, h, depth, d, and diameter, D. The h/d and d/D ratios provide a quantitative description of crater morphology as well as a quantitative method for assessing the relative importance of competing crater modification processes (since h, d, and D change as a crater is degraded by surface processes, and h/d and d/D change with time). Different classes of processes produce distinctive evolutionary tracks on an h/d versus d/D diagram. Tracks for three general classes of crater modification (processes adding material to the crater; processes redistributing the material within the crater vicinity; and processes removing the material from the crater vicinity) are calculated, and h/d and d/D ratios for craters on the earth, moon, and Mars are compared.

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