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Appears in Collections:Biological and Environmental Sciences Journal Articles
Peer Review Status: Refereed
Title: Ancient Impact and Aqueous Processes at Endeavour Crater, Mars
Authors: Squyres, Steven W
Arvidson, Raymond E
Bell, III James F
Calef, III Fred J
Cohen, Barbara A
Clark, Benton C
Crumpler, Larry S
Farrand, William H
Gellert, Ralf
Grant, John A
Herkenhoff, Kenneth E
Hurowitz, Joel A
Johnson, Jeffrey R
Schröder, Christian
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Issue Date: 4-May-2012
Publisher: American Association for the Advancement of Science
Citation: Squyres SW, Arvidson RE, Bell III JF, Calef III FJ, Cohen BA, Clark BC, Crumpler LS, Farrand WH, Gellert R, Grant JA, Herkenhoff KE, Hurowitz JA, Johnson JR & Schröder C (2012) Ancient Impact and Aqueous Processes at Endeavour Crater, Mars, Science, 336 (6081), pp. 570-576.
Abstract: The rover Opportunity has investigated the rim of Endeavour Crater, a large ancient impact crater on Mars. Basaltic breccias produced by the impact form the rim deposits, with stratigraphy similar to that observed at similar-sized craters on Earth. Highly localized zinc enrichments in some breccia materials suggest hydrothermal alteration of rim deposits. Gypsum-rich veins cut sedimentary rocks adjacent to the crater rim. The gypsum was precipitated from low-temperature aqueous fluids flowing upward from the ancient materials of the rim, leading temporarily to potentially habitable conditions and providing some of the waters involved in formation of the ubiquitous sulfate-rich sandstones of the Meridiani region.
Type: Journal Article
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Rights: The publisher does not allow this work to be made publicly available in this Repository. Please use the Request a Copy feature at the foot of the Repository record to request a copy directly from the author. You can only request a copy if you wish to use this work for your own research or private study.
Notes: Additional co-authors: BL Jolliff, AH Knoll, R Li, SM McLennan, DW Ming, DW Mittlefehldt, TJ Parker, G Paulsen, MS Rice, SW Ruff, AS Yen, K Zacny
Affiliation: Cornell University
Washington University In Saint Louis
Cornell University
California Institute of Technology
National Aeronautics and Space Administration (NASA)
Space Science Institute
New Mexico Museum of Natural History and Science
Space Science Institute
University of Guelph
U.S. Geological Survey
California Institute of Technology
Johns Hopkins University
Biological and Environmental Sciences

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