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  • Freissinet, C.Solar System Exploration Division, NASA Goddard Space Flight Center, Greenbelt, Maryland, USA; NASA Postdoctoral Program, Oak Ridge Associated Universities, Oak Ridge, Tennessee, USA (författare)

Organic molecules in the Sheepbed Mudstone, Gale Crater, Mars

  • Artikel/kapitelEngelska2015

Förlag, utgivningsår, omfång ...

  • 2015
  • printrdacarrier

Nummerbeteckningar

  • LIBRIS-ID:oai:DiVA.org:ltu-13016
  • https://urn.kb.se/resolve?urn=urn:nbn:se:ltu:diva-13016URI
  • https://doi.org/10.1002/2014JE004737DOI

Kompletterande språkuppgifter

  • Språk:engelska
  • Sammanfattning på:engelska

Ingår i deldatabas

Klassifikation

  • Ämneskategori:ref swepub-contenttype
  • Ämneskategori:art swepub-publicationtype

Anmärkningar

  • Validerad; 2015; Nivå 2; 20150318 (ninhul)
  • The Sample Analysis at Mars (SAM) instrument [Mahaffy et al., 2012] onboard the Mars Science Laboratory (MSL) Curiosity rover is designed to conduct inorganic and organic chemical analyses of the atmosphere and the surface regolith and rocks to help evaluate the past and present habitability potential of Mars at Gale Crater [Grotzinger et al., 2012]. Central to this task is the development of an inventory of any organic molecules present to elucidate processes associated with their origin, diagenesis, concentration and long-term preservation. This will guide the future search for biosignatures [Summons et al., 2011]. Here we report the definitive identification of chlorobenzene (150–300 parts per billion by weight (ppbw)) and C2 to C4 dichloroalkanes (up to 70 ppbw) with the SAM gas chromatograph mass spectrometer (GCMS), and detection of chlorobenzene in the direct evolved gas analysis (EGA) mode, in multiple portions of the fines from the Cumberland drill hole in the Sheepbed mudstone at Yellowknife Bay. When combined with GCMS and EGA data from multiple scooped and drilled samples, blank runs and supporting laboratory analog studies, the elevated levels of chlorobenzene and the dichloroalkanes cannot be solely explained by instrument background sources known to be present in SAM. We conclude that these chlorinated hydrocarbons are the reaction products of martian chlorine and organic carbon derived from martian sources (e.g. igneous, hydrothermal, atmospheric, or biological) or exogenous sources such as meteorites, comets or interplanetary dust particles.

Ämnesord och genrebeteckningar

Biuppslag (personer, institutioner, konferenser, titlar ...)

  • Glavin, D.P.Solar System Exploration Division, NASA Goddard Space Flight Center, Greenbelt, Maryland, USA (författare)
  • Mahaffy, P.R.Solar System Exploration Division, NASA Goddard Space Flight Center, Greenbelt, Maryland (författare)
  • Miller, K.E.Department of Earth, Atmospheric and Planetary Sciences, Massachusetts Institute of Technology, Cambridge (författare)
  • Eigenbrode, J.L.Solar System Exploration Division, NASA Goddard Space Flight Center, Greenbelt, Maryland, USA (författare)
  • Summons, R.E.Department of Earth, Atmospheric and Planetary Sciences, Massachusetts Institute of Technology, Cambridge (författare)
  • Brunner, A.E.Solar System Exploration Division, NASA Goddard Space Flight Center, Greenbelt, Maryland, USA; Center for Research and Exploration in Space Science & Technology, University of Maryland, College Park, Maryland, USA (författare)
  • Buch, A.Laboratoire de Génie des Procédés et Matériaux, Ecole Centrale Paris, Châtenay-Malabry, France (författare)
  • Szopa, C.Laboratoire Atmosphères, Milieux, Observations Spatiales, Pierre and Marie Curie University, Université de Versailles Saint-Quentin-en-Yvelines, and CNRS, Paris, France (författare)
  • Archer Jr., P.D.Jacobs, NASA Johnson Space Center, Houston, Texas, USA (författare)
  • Franz, H.B.Solar System Exploration Division, NASA Goddard Space Flight Center, Greenbelt, Maryland, USA; Center for Research and Exploration in Space Science & Technology, University of Maryland, Baltimore County, Baltimore, Maryland, USA (författare)
  • Atreya, S.K.Department of Atmospheric, Oceanic and Space Sciences, University of Michigan, Ann Arbor, Michigan, USA (författare)
  • Brinckerhoff, E.B.Solar System Exploration Division, NASA Goddard Space Flight Center, Greenbelt, Maryland, USA (författare)
  • Cabane, M.Laboratoire Atmosphères, Milieux, Observations Spatiales, Pierre and Marie Curie University, Université de Versailles Saint-Quentin-en-Yvelines, and CNRS, Paris, France (författare)
  • Coll, P.Laboratoire Interuniversitaire des Systèmes Atmosphériques, Université Paris-Est Créteil, Paris VII–Denis Diderot University, and CNRS, Créteil, France (författare)
  • Conrad, P.G.Solar System Exploration Division, NASA Goddard Space Flight Center, Greenbelt, Maryland, USA (författare)
  • Des Marais, D.J.Exobiology Branch, NASA Ames Research Center, Moffett Field, California, USA (författare)
  • Dworkin, J.P.Solar System Exploration Division, NASA Goddard Space Flight Center, Greenbelt, Maryland, USA (författare)
  • Fairén, A.G.Department of Astronomy, Cornell University, Ithaca, New York, USA; Centro de Astrobiología, INTA-CSIC, Madrid, Spain (författare)
  • François, P.Department of Atmospheric, Oceanic and Space Sciences, University of Michigan, Ann Arbor, Michigan, USA (författare)
  • Grotzinger, J.P.Division of Geological and Planetary Sciences, California Institute of Technology, Pasadena, California, USA (författare)
  • Kashyap, S.Solar System Exploration Division, NASA Goddard Space Flight Center, Greenbelt, Maryland, USA; Center for Research and Exploration in Space Science & Technology, University of Maryland, Baltimore County, Baltimore, Maryland, USA (författare)
  • ten Kate, I.L.Earth Sciences Department, Utrecht University, Utrecht, Netherlands (författare)
  • Leshin, L.A.Department of Earth and Environmental Sciences and School of Science, Rensselaer Polytechnic Institute, Troy, New York, USA (författare)
  • Malespin, C.A.Solar System Exploration Division, NASA Goddard Space Flight Center, Greenbelt, Maryland, USA; Goddard Earth Sciences and Technologies and Research, Universities Space Research Association, Columbia, Maryland, USA (författare)
  • Martin, M.G.Solar System Exploration Division, NASA Goddard Space Flight Center, Greenbelt, Maryland, USA; Department of Chemistry, Catholic University of America, Washington, District of Columbia, USA (författare)
  • Martín-Torres, F.J.Luleå tekniska universitet,Rymdteknik,Instituto Andaluz de Ciencias de la Tierra (CSIC-UGR), Granada, Spain,MSL Science Team(Swepub:ltu)javmar (författare)
  • McAdam, A.C.Solar System Exploration Division, NASA Goddard Space Flight Center, Greenbelt, Maryland, USA (författare)
  • Ming, D.W.Astromaterials Research and Exploration Science Directorate, NASA Johnson Space Center, Houston, Texas, USA (författare)
  • Navarro-González, R.Instituto de Ciencias Nucleares, Universidad Nacional Autónoma de México, Ciudad Universitaria, México City, Mexico (författare)
  • Pavlov, A.A.Solar System Exploration Division, NASA Goddard Space Flight Center, Greenbelt, Maryland, USA (författare)
  • Prats, B.D.Solar System Exploration Division, NASA Goddard Space Flight Center, Greenbelt, Maryland, USA (författare)
  • Squyres, S.W.Department of Astronomy, Cornell University, Ithaca, New York, USA (författare)
  • Steele, A.Geophysical Laboratory, Carnegie Institution of Washington, Washington, District of Columbia, USA (författare)
  • Stern, J.C.Solar System Exploration Division, NASA Goddard Space Flight Center, Greenbelt, Maryland, USA (författare)
  • Sumner, D.Y.Department of Earth and Planetary Sciences, University of California, Davis, California, USA (författare)
  • Sutter, B.Jacobs, NASA Johnson Space Center, Houston, Texas, USA (författare)
  • Zorzano, María-PazCentro de Astrobiologia, INTA-CSIC, Madrid(Swepub:ltu)marzor (författare)
  • Solar System Exploration Division, NASA Goddard Space Flight Center, Greenbelt, Maryland, USA; NASA Postdoctoral Program, Oak Ridge Associated Universities, Oak Ridge, Tennessee, USASolar System Exploration Division, NASA Goddard Space Flight Center, Greenbelt, Maryland, USA (creator_code:org_t)

Sammanhörande titlar

  • Ingår i:Journal of Geophysical Research - Planets120:3, s. 495-5142169-90972169-9100

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