In-situ Mössbauer Spectroscopy with MIMOS II at Rio Tinto, Spain


Fleischer I, Klingelhoefer G, Rull F, Wehrheim S, Ebert S, Panthofer M, Blumers M, Schmanke D, Maul J & Schröder C (2010) In-situ Mössbauer Spectroscopy with MIMOS II at Rio Tinto, Spain. Journal of Physics: Conference Series, 217 (1), Art. No.: 012062.

The Rio Tinto, located in southwest Spain, exhibits a nearly constant, acidic pHvalue along its course. Due to the formation of sulfate minerals, Rio Tinto is considered a potential analogue site for sulfate-rich regions on Mars, in particular at the landing site of the Mars Exploration Rover Opportunity, where the ferric sulfate mineral jarosite was identified with Opportunity's Mössbauer spectrometer. Primary and secondary mineralogy was investigated in situ with portable Raman and Mössbauer spectrometers at four different Rio Tinto sampling sites. The two techniques analyse different sample portions due to their specific field of view and sampling depth and provide complementary mineralogical information.

Journal of Physics: Conference Series: Volume 217, Issue 1

Publication date31/12/2010
PublisherInstitute of Physics Publishing