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USGS · 70012423

Zur chemie der marsoberfläche

Klaus Keil·Benton C. Clark·A. K. Baird·Priestley Toulmin·Harry J. Rose
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Abstract

Analyses of 13 samples of Martian surface materials with the Viking X-ray fluorescence spectrometers show SiO 2 similar to that of terrestrial mafic rocks, whereas Fe 2 O 3 , Cl, and S are higher and Al 2 O 3 , K 2 O, Rb, Sr, Y, and Zr are lower. Low totals suggest presence of CO 2 , H 2 O, and Na 2 O. Duricrust fragments are higher in S than fines, but samples from both landing sites are surprisingly similar. We suggest that Martian surface materials are aeolian deposits of complex mixtures of weathering products of maficultramafic rocks, possibly consisting of iron-rich clays, sulfates, iron oxides, carbonates, and chlorides.

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Klaus Keil, Benton C. Clark, A. K. Baird, Priestley Toulmin, Harry J. Rose. 1978. Zur chemie der marsoberfläche. https://doi.org/10.1007/bf00368561

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