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Backscattering Mössbauer spectroscopy of Martian dust |
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| Authors: | P. Bertelsen M. B. Madsen C. S. Binau W. Goetz H. P. Gunnlaugsson S. F. Hviid K. M. Kinch G. Klingelhöfer K. Leer D. E. Madsen J. Merrison M. Olsen S. W. Squyres |
| Affiliation: | 1. Niels Bohr Institute, University of Copenhagen, Juliane Maries Vej 30, 2100, Copenhagen Oe, Denmark 2. Max Planck Institut für Sonnensystemforschung, Katlenburg-Lindau, Germany 3. Institute for Physics and Astronomy, Aarhus University, Aarhus, Denmark 4. Johannes Gutenberg-Universit?t Mainz, Mainz, Germany 5. Department of Astronomy, Cornell University, Ithaca, NY, USA |
| Abstract: | We report on the determination of the mineralogy of the atmospherically suspended Martian dust particles using backscattering 57Fe Mössbauer spectroscopy on dust accumulated onto the magnets onboard the Mars Exploration Rovers. The spectra can be interpreted in terms of minerals of igneous origin, and shows only limited, if any, amounts of secondary minerals that may have formed in the presence of liquid water. These findings suggest that the dust has formed in a dry environment over long time in the history of the planet. |
| Keywords: | Mars dust 57Fe M?ssbauer spectroscopy |
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