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Described are some applications of conversion electron Mössbauer spectroscopy (CEMS) in geosciences. It is shown how easily this technique can be applied in existing Mössbauer laboratories to investigate natural samples. Some examples demonstrate the kind of information CEMS can give on the weathering history or mechanical properties of samples. The possible application of CEMS on Mars is discussed.
In order to confirm Mössbauer spectra of Jarosite, unidentified Fe3+ species (Fe3D3) and Fe2O3 found on Martian surface, some Jarosite specimens produced on Earth were characterized by 57Fe Mössbauer spectroscopy. For comparison, anhydrous ferric sulfate minerals, Mikasaite (Fe3+1.56Al0.44)(SO4)3, and Yavapaiite, KFe (SO4)2 were also measured. The thermal decomposition products of Jarosite and their...
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