Please use this identifier to cite or link to this item: http://hdl.handle.net/1893/17123
Appears in Collections:Biological and Environmental Sciences Journal Articles
Peer Review Status: Refereed
Title: Identification of Carbonate-Rich Outcrops on Mars by the Spirit Rover
Authors: Morris, Richard Van
Ruff, Steven W
Gellert, Ralf
Ming, Douglas Wayne
Arvidson, Raymond E
Clark, Benton C
Golden, D C
Siebach, Kirsten
Klingelhoefer, Goestar
Schröder, Christian
Fleischer, Iris
Yen, Albert S
Squyres, Steven W
Contact Email: christian.schroeder@stir.ac.uk
Issue Date: 23-Jul-2010
Publisher: American Association for the Advancement of Science
Citation: Morris RV, Ruff SW, Gellert R, Ming DW, Arvidson RE, Clark BC, Golden DC, Siebach K, Klingelhoefer G, Schröder C, Fleischer I, Yen AS & Squyres SW (2010) Identification of Carbonate-Rich Outcrops on Mars by the Spirit Rover, Science, 329 (5990), pp. 421-424.
Abstract: Decades of speculation about a warmer, wetter Mars climate in the planet’s first billion years postulate a denser CO 2-rich atmosphere than at present. Such an atmosphere should have led to the formation of outcrops rich in carbonate minerals, for which evidence has been sparse. Using the Mars Exploration Rover Spirit, we have now identified outcrops rich in magnesium-iron carbonate (16 to 34 weight percent) in the Columbia Hills of Gusev crater. Its composition approximates the average composition of the carbonate globules in martian meteorite ALH 84001. The Gusev carbonate probably precipitated from carbonate-bearing solutions under hydrothermal conditions at near-neutral pH in association with volcanic activity during the Noachian era.
Type: Journal Article
URI: http://hdl.handle.net/1893/17123
DOI Link: http://dx.doi.org/10.1126/science.1189667
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.
Affiliation: National Aeronautics and Space Administration (NASA)
Arizona State University
University of Guelph
National Aeronautics and Space Administration (NASA)
Washington University In Saint Louis
Space Science Institute
Engineering and Science Contract Group, Texas
Washington University In Saint Louis
Johannes Gutenberg University of Mainz
Biological and Environmental Sciences
Johannes Gutenberg University of Mainz
California Institute of Technology
Cornell University

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