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Weathering processes implied from analysis of small Martian avalanche chutesIt has been proposed that the smaller features of martian spur and gully slope morphology, located along the upper walls of Valles Marineris, are avalanche chutes. A three-dimensional stability back-analysis technique was developed and applied to these small avalanche chutes, yielding average values of cohesion and angle of internal friction for the mobile layer materials on these slopes at the time of each slope failure. Generally, the analysis showed that at the time of each slope failure material strengths had been reduced to those of moderately cohesive debris down through depths of tens of meters. These results have implications and possible constraints for the nature and rate of martian weathering processes.
Document ID
19930022771
Acquisition Source
Legacy CDMS
Document Type
Other
Authors
Sullivan, R.
(Arizona State Univ. Tempe, AZ, United States)
Date Acquired
September 6, 2013
Publication Date
September 12, 1992
Publication Information
Publication: Lunar and Planetary Inst., MSATT Workshop on Chemical Weathering on Mars
Subject Category
Lunar And Planetary Exploration
Accession Number
93N31960
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.

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