Skip to main navigation Skip to search Skip to main content

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

  • Nina L. Lanza
  • , Roger C. Wiens
  • , Raymond E. Arvidson
  • , Benton C. Clark
  • , Woodward W. Fischer
  • , Ralf Gellert
  • , John P. Grotzinger
  • , Joel A. Hurowitz
  • , Scott M. McLennan
  • , Richard V. Morris
  • , Melissa S. Rice
  • , James F. Bell
  • , Jeffrey A. Berger
  • , Diana L. Blaney
  • , Nathan T. Bridges
  • , Fred Calef
  • , John L. Campbell
  • , Samuel M. Clegg
  • , Agnes Cousin
  • , Kenneth S. Edgett
  • Cécile Fabre, Martin R. Fisk, Olivier Forni, Jens Frydenvang, Keian R. Hardy, Craig Hardgrove, Jeffrey R. Johnson, Jeremie Lasue, Stéphane Le Mouélic, Michael C. Malin, Nicolas Mangold, Javier Martìn-Torres, Sylvestre Maurice, Marie J. McBride, Douglas W. Ming, Horton E. Newsom, Ann M. Ollila, Violaine Sautter, Susanne Schröder, Lucy M. Thompson, Allan H. Treiman, Scott VanBommel, David T. Vaniman, Marìa Paz Zorzano
  • Los Alamos National Laboratory
  • Washington University St. Louis
  • Space Science Institute
  • California Institute of Technology
  • University of Guelph
  • Stony Brook University
  • NASA Johnson Space Center
  • Western Washington University
  • Arizona State University
  • Western University
  • Jet Propulsion Laboratory, California Institute of Technology
  • Johns Hopkins University Applied Physics Laboratory
  • Institute de Recherche en Astrophysique et Planétologie
  • Malin Space Science Systems
  • Université de Lorraine
  • Oregon State University
  • University of Copenhagen
  • United States Naval Academy
  • Nantes Université
  • Luleå University of Technology
  • Instituto Andaluz de Ciencias de la Tierra (CSIC‐UGR)
  • Purdue University
  • University of New Mexico
  • Muséum national d'histoire naturelle
  • University of New Brunswick
  • Universities Space Research Association
  • Planetary Science Institute
  • CSIC

Research output: Contribution to journalArticlepeer-review

131 Scopus citations

Abstract

The Curiosity rover observed high Mn abundances (>25 wt % 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.

Original languageEnglish
Pages (from-to)7398-7407
Number of pages10
JournalGeophysical Research Letters
Volume43
Issue number14
DOIs
StatePublished - Jul 28 2016

Keywords

  • ChemCam
  • manganese
  • Mars
  • MSL
  • oxidation

Fingerprint

Dive into the research topics of 'Oxidation of manganese in an ancient aquifer, Kimberley formation, Gale crater, Mars'. Together they form a unique fingerprint.

Cite this