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Morphometric comparison of braided Martian channels and some braided terrestrial featuresLarge channels on the Martian surface have been variously attributed to erosional, volcanic, and tectonic processes. Morphometric information shows that large braided Martian channels and islands between those channels are similar in their dimensions to channels and islands of large braided fluvial features on earth. The information also suggests that braided fractures in solid materials are fundamentally different in morphometry from braided channels of earth and Mars. Braided tension fractures have characteristically low braiding indices and are much narrower than their irregularly shaped 'midchannel' islands. Terrestrial and Martian channels, in contrast, have high braiding indices, and they are wider than their streamlined midchannel islands. Braided volcanic features are known from the earth and the moon, but the absence of volcanic constructs near the large braided channels on Mars indicates that volcanic origin is unlikely. The morphometric information suggests that braided Martian channels are probably of fluvial origin.
Document ID
19790027596
Acquisition Source
Legacy CDMS
Document Type
Reprint (Version printed in journal)
Authors
Trevena, A. S.
(Utah Univ. Salt Lake City, UT, United States)
Picard, M. D.
(Utah, University Salt Lake City, Utah, United States)
Date Acquired
August 9, 2013
Publication Date
September 1, 1978
Publication Information
Publication: Icarus
Volume: 35
Subject Category
Lunar And Planetary Exploration
Accession Number
79A11609
Funding Number(s)
CONTRACT_GRANT: NGR-45-003-095
Distribution Limits
Public
Copyright
Other

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