Mössbauer Analysis of the Surface of Mars with MIMOS II at Meridiani Planum and Gusev Crater

Details Mössbauer Analysis of the Surface of Mars with MIMOS II at Meridiani Planum and Gusev Crater Mössbauer Analysis of the Surface of Mars with MIMOS II at Meridiani Planum and Gusev Crater

Apr 2005

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2005aipc..765..369k&link_type=abstract

INDUSTRIAL APPLICATIONS OF THE MOSSBAUER EFFECT: International Symposium on the Industrial Applications of the Mossbauer Effect.

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Astronomical And Space-Research Instrumentation, Spaceborne And Space Research Instruments, Apparatus, And Components, Mars

Scientific paper

A Mössbauer spectrometer was placed on the surface of another planet for the first time in history. Our miniaturized Mössbauer spectrometer MIMOS II (see Fig. 2) is part of the instrument payload of NASA's twin Mars Exploration Rovers (MER) ``Spirit'' and ``Opportunity'' (see Fig. 1), which landed at the Gusev crater and the Meridiani Planum landing sites, respectively, in January 2004. MIMOS II determines the Fe-bearing mineralogy of Martian soils and rocks at the Rovers' respective landing sites. The main goals of this planetary twin mission are to (i) identify hydrologic, hydrothermal, and other processes that have operated and affected materials at the landing sites, and (ii) identify and investigate the rocks and soils at both landing sites, as there is a possible chance that they may preserve evidence of ancient environmental conditions and possible pre-biotic or biotic activities. With MIMOS II besides other minerals the Fe-silicate olivine has been identified in both soil and rocks at both landing sites. At the Meridiani site the Fe-sulfate jarosite has been identified by MIMOS II which is definitive mineralogical proof of the presence of water at this site in the past.

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