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Oxidation of manganese in an ancient aquifer, Kimberley formation, Gale crater, Mars

Lanza, Nina L. (author)
Los Alamos National Laboratory
Wiens, Roger C. (author)
Los Alamos National Laboratory, Space Remote Sensing, Los Alamos National Laboratory, Los Alamos, International Space and Response Division, Los Alamos National Laboratory
Arvidson, Ray E. (author)
Washington University, St. Louis
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Clark, Benton C. (author)
Space Science Institute, Boulder, Colorado, Space Science Institute
Fischer, W.W. (author)
California Institute of Technology, Pasadena
Gellert, Ralf (author)
University of Guelph, Ontario, University of Guelph, Department of Physics, University of Guelph, Ontario
Grotzinger, John P. (author)
California Institute of Technology, Pasadena, Division of Geological and Planetary Sciences, California Institute of Technology, Caltech, Pasadena, Jet Propulsion Laboratory, California Institute of Technology, Pasadena
Hurowitz, J.A. (author)
Department of Geosciences, Stony Brook University, Stony Brook University, NY, Department of Geosciences, State University of New York, Stony Brook
McLennan, S.M. (author)
Department of Geosciences, Stony Brook University, Stony Brook University, NY, Department of Geosciences, State University of New York, Stony Brook, The State University of New York, Stony Brook
Morris, R.V. (author)
NASA Johnson Space Center, NASA Johnson Space Center, Houston, Astromaterials Research and Exploration Science Directorate, NASA Johnson Space Center, Houston
Rice, M.S. (author)
California Institute of Technology, Pasadena, Division of Geological and Planetary Sciences, California Institute of Technology
III, J.F. Bell (author)
Arizona State University, School of Earth and Space Exploration, Arizona State University, School of Earth and Space Exploration, Arizona State University, Tempe
Berger, Jeff A. (author)
University of Western Ontario, London
Blaney, Diana L. (author)
Jet Propulsion Laboratory, California Institute of Technology, Pasadena, Jet Propulsion Laboratory, Pasadena, Kalifornien
Bridges, Nathan T. (author)
Johns Hopkins University Applied Physics Laboratory, Laurel, Applied Physics Laboratory, Laurel, Maryland
Calef, Fred (author)
Jet Propulsion Laboratory, California Institute of Technology, Pasadena, Jet Propulsion Laboratory
Campbell, J.L. (author)
Department of Physics, University of Guelph, Ontario, University of Guelph, Ontario
Clegg, S.M. (author)
Los Alamos National Laboratory, Chemistry Division, Los Alamos National Laboratory
Cousin, A. (author)
Los Alamos National Laboratory, Chemistry Division, Los Alamos National Laboratory
Edgett, Kenneth S. (author)
Malin Space Science Systems, San Diego, Malin Space Science Systems
Fabre, Cécile (author)
Université de Lorraine, Nancy
Fisk, M.R. (author)
Oregon State University, Corvallis
Forni, Olivier (author)
IRAP/CNRS, Institut de Recherche en Astrophysique et Planetologie, Toulouse, Université de Toulouse, UPS-OMP, IRAP, Institut de Recherche en Astophysique et Planetologie (IRAP), Universite' Paul Sabatier, Toulouse, IRAP, CNRS/UPS, Toulouse
Frydenvang, J. (author)
Niels Bohr Institute, University of Copenhagen
Hardy, K.R. (author)
U.S. Naval Academy, Annapolis
Martin-Torres, Javier (author)
Luleå tekniska universitet,Rymdteknik
Zorzano Mier, Maria-Paz (author)
Luleå tekniska universitet,Rymdteknik
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 (creator_code:org_t)
2016
2016
English.
In: Geophysical Research Letters. - 0094-8276 .- 1944-8007. ; 43:14, s. 7398-7407
  • Journal article (peer-reviewed)
Abstract Subject headings
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  • The Curiosity rover observed high Mn abundances (>25wt % MnO) in fracture-filling materials that crosscut sandstones in the Kimberley region of Gale crater, Mars. The correlation between Mn and trace metal abundances plus the lack of correlation between Mn and elements such as S, Cl, and C, reveals that these deposits are Mn oxides rather than evaporites or other salts. On Earth, environments that concentrate Mn and deposit Mn minerals require water and highly oxidizing conditions; hence, these findings suggest that similar processes occurred on Mars. Based on the strong association between Mn-oxide deposition and evolving atmospheric dioxygen levels on Earth, the presence of these Mn phases on Mars suggests that there was more abundant molecular oxygen within the atmosphere and some groundwaters of ancient Mars than in the present day

Subject headings

TEKNIK OCH TEKNOLOGIER  -- Maskinteknik -- Rymd- och flygteknik (hsv//swe)
ENGINEERING AND TECHNOLOGY  -- Mechanical Engineering -- Aerospace Engineering (hsv//eng)

Keyword

Atmospheric science
Atmosfärsvetenskap

Publication and Content Type

ref (subject category)
art (subject category)

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