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Eolian sedimentation on earth and Mars - Some comparisonsEolian 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.
Document ID
19800029799
Acquisition Source
Legacy CDMS
Document Type
Reprint (Version printed in journal)
Authors
Smalley, I. J.
(Department of Scientific and Industrial Research Soil Bureau, Lower Hutt, New Zealand)
Krinsley, D. H.
(Arizona State University Tempe, Ariz., United States)
Date Acquired
August 10, 2013
Publication Date
November 1, 1979
Publication Information
Publication: Icarus
Volume: 40
Subject Category
Lunar And Planetary Exploration
Accession Number
80A13969
Funding Number(s)
CONTRACT_GRANT: NCA2-OR-035-801
CONTRACT_GRANT: NCA2-OR-035-901
Distribution Limits
Public
Copyright
Other

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