Your browser doesn't support javascript.
loading
Alteration history of Séítah formation rocks inferred by PIXL x-ray fluorescence, x-ray diffraction, and multispectral imaging on Mars.
Tice, Michael M; Hurowitz, Joel A; Allwood, Abigail C; Jones, Michael W M; Orenstein, Brendan J; Davidoff, Scott; Wright, Austin P; Pedersen, David A K; Henneke, Jesper; Tosca, Nicholas J; Moore, Kelsey R; Clark, Benton C; McLennan, Scott M; Flannery, David T; Steele, Andrew; Brown, Adrian J; Zorzano, Maria-Paz; Hickman-Lewis, Keyron; Liu, Yang; VanBommel, Scott J; Schmidt, Mariek E; Kizovski, Tanya V; Treiman, Allan H; O'Neil, Lauren; Fairén, Alberto G; Shuster, David L; Gupta, Sanjeev.
Afiliación
  • Tice MM; Department of Geology and Geophysics, Texas A&M University, College Station, TX 77843, USA.
  • Hurowitz JA; Department of Geosciences, Stony Brook University, Stony Brook, NY 11794-2100, USA.
  • Allwood AC; Jet Propulsion Laboratory, California Institute of Technology, Pasadena, CA 91109, USA.
  • Jones MWM; School of Chemistry and Physics and Central Analytical Research Facility, Queensland University of Technology, Brisbane, QLD 4000, Australia.
  • Orenstein BJ; School of Earth and Atmospheric Sciences, Queensland University of Technology, Brisbane, QLD 4000, Australia.
  • Davidoff S; Jet Propulsion Laboratory, California Institute of Technology, Pasadena, CA 91109, USA.
  • Wright AP; School of Computational Science and Engineering, Georgia Institute of Technology, Atlanta, GA 30332, USA.
  • Pedersen DAK; Technical University of Denmark, DTU Space, Department of Measurement and Instrumentation, Kongbens Lyngby, 2800, Denmark.
  • Henneke J; Technical University of Denmark, DTU Space, Department of Measurement and Instrumentation, Kongbens Lyngby, 2800, Denmark.
  • Tosca NJ; Department of Earth Sciences, University of Cambridge, Cambridge CB2 3EQ, UK.
  • Moore KR; Division of Geological and Planetary Sciences, California Institute of Technology, Pasadena, CA 91125, USA.
  • Clark BC; Space Science Institute, Boulder, CO 80301, USA.
  • McLennan SM; Department of Geosciences, Stony Brook University, Stony Brook, NY 11794-2100, USA.
  • Flannery DT; School of Earth and Atmospheric Sciences, Queensland University of Technology, Brisbane, QLD 4000, Australia.
  • Steele A; Earth and Planetary Laboratory, Carnegie Institution for Science, Washington, DC 20015, USA.
  • Brown AJ; Plancius Research, Severna Park, MD 21146, USA.
  • Zorzano MP; Centro de Astrobiologia, Instituto National de Tecnica Aerospacial, Madrid, Spain.
  • Hickman-Lewis K; Department of Earth Sciences, Natural History Museum, London SW7 5BD, UK.
  • Liu Y; Jet Propulsion Laboratory, California Institute of Technology, Pasadena, CA 91109, USA.
  • VanBommel SJ; McDonnell Center for the Space Sciences, Department of Earth and Planetary Sciences, Washington University of St. Louis, St. Louis, MO 63130, USA.
  • Schmidt ME; Department of Earth Sciences, Brock University, St. Catharines, ON L2S 3A1, Canada.
  • Kizovski TV; Department of Earth Sciences, Brock University, St. Catharines, ON L2S 3A1, Canada.
  • Treiman AH; Lunar and Planetary Institute (USRA), Houston, TX 77058, USA.
  • O'Neil L; Department of Earth and Space Sciences, University of Washington, Seattle, WA 98052, USA.
  • Fairén AG; Centro de Astrobiología (CSIC-INTA), Torrejón de Ardoz, Madrid, Spain.
  • Shuster DL; Department of Astronomy, Cornell University, Ithaca, NY 14850, USA.
  • Gupta S; Department of Earth and Planetary Science, University of California, Berkeley, CA 94720, USA.
Sci Adv ; 8(47): eabp9084, 2022 Nov 25.
Article en En | MEDLINE | ID: mdl-36417516
Collocated crystal sizes and mineral identities are critical for interpreting textural relationships in rocks and testing geological hypotheses, but it has been previously impossible to unambiguously constrain these properties using in situ instruments on Mars rovers. Here, we demonstrate that diffracted and fluoresced x-rays detected by the PIXL instrument (an x-ray fluorescence microscope on the Perseverance rover) provide information about the presence or absence of coherent crystalline domains in various minerals. X-ray analysis and multispectral imaging of rocks from the Séítah formation on the floor of Jezero crater shows that they were emplaced as coarsely crystalline igneous phases. Olivine grains were then partially dissolved and filled by finely crystalline or amorphous secondary silicate, carbonate, sulfate, and chloride/oxychlorine minerals. These results support the hypothesis that Séítah formation rocks represent olivine cumulates altered by fluids far from chemical equilibrium at low water-rock ratios.
Texto completo
Añadir a Mi BVS
Imprimir
XML
PubMed Links
Buscar en Google

Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Idioma: En Revista: Sci Adv Año: 2022 Tipo del documento: Article País de afiliación: Estados Unidos Pais de publicación: Estados Unidos
Texto completo
Añadir a Mi BVS
Imprimir
XML
PubMed Links
Buscar en Google

Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Idioma: En Revista: Sci Adv Año: 2022 Tipo del documento: Article País de afiliación: Estados Unidos Pais de publicación: Estados Unidos