Journal
ICARUS
Volume 209, Issue 2, Pages 416-421Publisher
ACADEMIC PRESS INC ELSEVIER SCIENCE
DOI: 10.1016/j.icarus.2010.06.001
Keywords
Mars, Surface; Mineralogy; Spectroscopy
Categories
Funding
- Fannie and John Hertz Foundation
- NSF
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The region surrounding the Mawrth Vallis outflow channel on Mars hosts thick layered deposits containing diverse phyllosilicate minerals. Here we report detection of the Ca-sulfate bassanite on the outflow channel floor, requiring a more complex aqueous chemistry than previously inferred for this region. The sulfate-bearing materials underlie phyllosilicate-bearing strata, and provide an opportunity for testing proposed models of martian geochemical evolution with a future landed mission. (C) 2010 Elsevier Inc. All rights reserved.
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