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Did ice streams shape the largest channels on Mars?

Kite, Edwin S.; Hindmarsh, Richard C.A.. 2007 Did ice streams shape the largest channels on Mars? Geophysical Research Letters, 34 (19), L19202. 5, pp. 10.1029/2007GL030530

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Abstract/Summary

The largest channels on Mars are the Northwestern Slope Valleys (NSVs) of Tharsis, which have previously been interpreted as the probable erosional trace of catastrophic flooding. It is argued here that ice-streaming within ancient ice sheets emplaced by atmospheric precipitation at high mean obliquity may instead account for these channels, explaining similarities between the region and terrestrial Pleistocene subglacial landscapes. An ice-sheet model shows extensive basal melting in and only in the NSV region, and ice streams which have significant erosive power.

Item Type: Publication - Article
Digital Object Identifier (DOI): 10.1029/2007GL030530
Programmes: BAS Programmes > Global Science in the Antarctic Context (2005-2009) > Glacial Retreat in Antarctica and Deglaciation of the Earth System
ISSN: 0094-8276
NORA Subject Terms: Glaciology
Space Sciences
Date made live: 01 Nov 2011 17:02
URI: http://nora.nerc.ac.uk/id/eprint/11770

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