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Physical and chemical modification of the surface of Venus by windblown particlesThe results of simulations of the Venusian surface environment involving windblown grains are presented which show that significant chemical and physical changes may occur even in the slow-moving winds recorded on Venus. The edges of grains beome worn and shed comminuted debris, which collects on weathered surfaces and grains alike. The resulting transfer of material from loose grains to bedrock surfaces (and vice versa) could yield misleading results on rock composition; moreover, the generation of comminuted debris would enhance chemical reactions that could affect the composition of the atmosphere. The results are thus relevant in assessing rates of surface degradation, the evolution of small-scale surface features as seen in images returned from the Soviet Venera missions, and in the interpretation of compositional data for surface materials.
Document ID
19870056843
Acquisition Source
Legacy CDMS
Document Type
Reprint (Version printed in journal)
External Source(s)
Authors
Greeley, Ronald
(Arizona State Univ. Tempe, AZ, United States)
Marshall, John R.
(Arizona State University Tempe, United States)
Pollack, James B.
(NASA Ames Research Center Moffett Field, CA, United States)
Date Acquired
August 13, 2013
Publication Date
May 28, 1987
Publication Information
Publication: Nature
Volume: 327
ISSN: 0028-0836
Subject Category
Lunar And Planetary Exploration
Accession Number
87A44117
Distribution Limits
Public
Copyright
Other

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