Please use this identifier to cite or link to this item: http://hdl.handle.net/1893/17132
Appears in Collections:Biological and Environmental Sciences Journal Articles
Peer Review Status: Refereed
Title: Mineralogy at Gusev crater from the Mössbauer spectrometer on the Spirit rover
Authors: Morris, Richard Van
Klingelhoefer, Goestar
Bernhardt, Bodo
Schröder, Christian
Rodionov, Daniel S
de, Souza Jr Paulo A
Yen, Albert S
Gellert, Ralf
Evlanov, E N
Foh, J
Kankeleit, Egbert
Gutlich, Philipp
Ming, Douglas Wayne
Renz, Franz
Wdowiak, Thomas J
Squyres, Steven W
Arvidson, Raymond E
Contact Email: christian.schroeder@stir.ac.uk
Issue Date: 6-Aug-2004
Publisher: American Association for the Advancement of Science
Citation: Morris RV, Klingelhoefer G, Bernhardt B, Schröder C, Rodionov DS, de Souza Jr PA, Yen AS, Gellert R, Evlanov EN, Foh J, Kankeleit E, Gutlich P, Ming DW, Renz F, Wdowiak TJ, Squyres SW & Arvidson RE (2004) Mineralogy at Gusev crater from the Mössbauer spectrometer on the Spirit rover, Science, 305 (5685), pp. 833-836.
Abstract: Mössbauer spectra measured on Mars by the Spirit rover during the primary mission are characterized by two ferrous iron doublets (olivine and probably pyroxene) and a ferric iron doublet (tentatively associated to nanophase ferric iron oxide). Two sextets resulting from nonstoichiometric magnetite are also present, except for a coating on the rockMazatzal, where a hematite-like sextet is present. Greater proportions of ferric-bearing phases are associated with undisturbed soils and rock surfaces as compared to fresh rocksurfaces exposed by grinding. The ubiquitous presence of olivine in soil suggests that physical rather than chemical weathering processes currently dominate at Gusev crater.
Type: Journal Article
URI: http://hdl.handle.net/1893/17132
DOI Link: http://dx.doi.org/10.1126/science.1100020
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)
Johannes Gutenberg University of Mainz
Johannes Gutenberg University of Mainz
Biological and Environmental Sciences
Johannes Gutenberg University of Mainz
University of Tasmania
California Institute of Technology
Max Planck Institute of Chemistry
Space Research Institute IKI, Russia
Johannes Gutenberg University of Mainz
Darmstadt University of Technology, Germany
Johannes Gutenberg University of Mainz
National Aeronautics and Space Administration (NASA)
Johannes Gutenberg University of Mainz
University of Alabama at Birmingham
Cornell University
Washington University In Saint Louis

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