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Zur chemie der marsoberfläche

Mineralogische und petrologische Implikationen

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Abstract

Analyses of 13 samples of Martian surface materials with the Viking X-ray fluorescence spectrometers show SiO2 similar to that of terrestrial mafic rocks, whereas Fe2O3, Cl, and S are higher and Al2O3, K2O, Rb, Sr, Y, and Zr are lower. Low totals suggest presence of CO2, H2O, and Na2O. 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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Author information

Authors and Affiliations

  1. Department of Geology and Institute of Meteoritics, University of New Mexico, 87131, Albuquerque, New Mexico, USA

    Klaus Keil

  2. Planetary Sciences Laboratory, Martin Marietta Aerospace, 80201, Denver, Colorado, USA

    Benton C. Clark

  3. Department of Geology, Pomona College, 91711, Claremont, California, USA

    A. K. Baird

  4. U.S. Geological Survey, 22092, Reston, Virginia, USA

    Priestley Toulmin III & Harry J. Rose Jr.

Authors
  1. Klaus Keil
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  2. Benton C. Clark
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  3. A. K. Baird
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  4. Priestley Toulmin III
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  5. Harry J. Rose Jr.
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Additional information

Wir danken Lisa Crafton für ihre Mühe mit dem Maschinenschreiben des Manuskriptes. Diese Arbeit wurde durch die National Aeronautics und Space Administration (Viking-Programm) unter-stützt (Forschungsverträge NAS1-11855, NAS1-11858, L-9717 und NAS1-9000).

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Keil, K., Clark, B.C., Baird, A.K. et al. Zur chemie der marsoberfläche. Naturwissenschaften 65, 231–238 (1978). https://doi.org/10.1007/BF00368561

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  • DOI: https://doi.org/10.1007/BF00368561

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