Computer Science
Scientific paper
Nov 1979
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1979icar...40..276s&link_type=abstract
Icarus, vol. 40, Nov. 1979, p. 276-288.
Computer Science
6
Earth Surface, Mars Surface, Sediments, Wind Effects, Entrainment, Granite, Particle Size Distribution, Quartz, Sands
Scientific paper
Eolian sediments on earth are mostly formed from quartz. The quartz particles originally came from a granitic source. With respect to eolian sediments on Mars, it appears that an entirely different set of criteria must apply, but some critical parameters can be usefully compared. Impact experiments with basalt in eolian abrasion devices suggest that basalt sand-sized particles fragment rapidly to produce silt and clay-sized detritus. Cohesive forces must be more effective on Mars since the gravitational contribution to the bond/weight ratio is lower. Compared to the terrestrial situation, both larger and smaller particles can be expected to make significant contributions to eolian sediments on Mars. The low gravity and the high speed of moving particles and the relative weak rock material of which they are composed will allow large-scale fine particle production.
Krinsley David H.
Smalley I. J.
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