Morphology of fresh craters on Ganymede and the origin of pedestal craters

Details Morphology of fresh craters on Ganymede and the origin of pedestal craters Morphology of fresh craters on Ganymede and the origin of pedestal craters

Apr 1984

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1984pggp.rept...94h&link_type=abstract

In NASA. Washington Rept. of Planetary Geol. Program, 1983 p 94-96 (SEE N84-23431 13-91)

Physics

Craters, Ejecta, Ganymede, Geomorphology, Ice, Surface Properties, Voyager Project, Albedo, Brightness Distribution, Deformation, Domes (Geology), Mass Flow, Surface Temperature, Topography, Viscosity

Scientific paper

Properties of the planetary surface and subsurface can affect the morphology of impact craters. A mechanism was proposed to explain pedestal craters and domed floors within fresh craters on Ganymede. Voyager 1 and 2 images with resolutions = to or 3.2 km/lp were examined and 523 fresh craters were identified. For each crater, the rim and ejecta diameters were measured, and the crater was characterized by ejecta class(es), interior features, floor morphology and target terrain. Of the craters examined, 97 show moderate to prominent doming of the crater floor; 340 craters have continuous ejecta which terminates in a scarp pedestal craters, of which 86 (25%) have a high albedo diffuse deposit beyond the pedestal.

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