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The distribution of lobate debris aprons and similar flows on MarsPlanet-wide mapping of lobate debris aprons and other similar flows on Mars shows a strong concentration in two latitudinal bands roughly 25 deg wide and centered at 40 deg N and 45 deg S. This distribution supports the idea that these flows form when erosional debris is transported downslope and becomes mixed with ice deposited from the atmosphere, as these latitudes should receive high seasonal H2O frost deposition relative to the rest of the planet. Flows are found in the northern hemisphere band wherever old highland surfaces occur but are found in the southern hemisphere only near the two major impact basins, Argyre and Hellas. These areas are apparently characterized by mass wasting that is rapid relative to most of the southern hemisphere highlands. The rate of mass wasting may be related to the degree of consolidation of highland material.
Document ID
19800042195
Acquisition Source
Legacy CDMS
Document Type
Reprint (Version printed in journal)
Authors
Squyres, S. W.
(Cornell University Ithaca, N.Y., United States)
Date Acquired
August 10, 2013
Publication Date
December 30, 1979
Publication Information
Publication: Journal of Geophysical Research
Volume: 84
Subject Category
Lunar And Planetary Exploration
Accession Number
80A26365
Funding Number(s)
CONTRACT_GRANT: NSG-7156
Distribution Limits
Public
Copyright
Other

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