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Evidence for indige...
Evidence for indigenous nitrogen in sedimentary and aeolian deposits from the Curiosity rover investigations at Gale crater, Mars
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- Stern, Jennifer C. (författare)
- Solar System Exploration Division, Goddard Space Flight Center, National Aeronautics and Space Administration, Greenbelt, Maryland, USA
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- Sutter, Brad (författare)
- Jacobs Technology, Inc., Johnson Space Center, National Aeronautics and Space Administration, Houston, Texas, USA
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- Freissinet, Caroline (författare)
- NASA Postdoctoral Program, Goddard Space Flight Center, National Aeronautics and Space Administration, Greenbelt, Maryland, USA
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- Navarro-González, Rafael (författare)
- Instituto de Ciencias Nucleares, Universidad Nacional Autónoma de México, Mexico D.F., Mexico
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- McKay, Christopher P. (författare)
- Exobiology Branch, Ames Research Center, National Aeronautics and Space Administration, Moffett Field, Kalifornien, USA
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- Jr., P. Douglas Archer (författare)
- Jacobs Technology, Inc., Johnson Space Center, National Aeronautics and Space Administration, Houston, Texas, USA
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- Buch, Arnaud (författare)
- Laboratoire de Genie de Procedes et Materiaux, Ecole Centrale Paris, Chatenay-Malabry, France
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- Brunner, Anna E. (författare)
- Solar System Exploration Division, Goddard Space Flight Center, National Aeronautics and Space Administration, Greenbelt, Maryland, USA; School of Earth and Space Exploration, Arizona State University, Tempe, AZ 85281, USA
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- Coll, Patrice (författare)
- Laboratoire Interuniversitaire des Systèmes Atmosphériques, Université Paris-Est Créteil, Université Paris Diderot and CNRS, Créteil, France
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- Eigenbrode, Jennifer L. (författare)
- Solar System Exploration Division, Goddard Space Flight Center, National Aeronautics and Space Administration, Greenbelt, Maryland, USA
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- Fairen, Alberto G. (författare)
- Centro de Astrobiologia, Madrid, Spain; Department of Astronomy, Cornell University, Ithaca, NY 14853, USA
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- Franz, Heather B. (författare)
- Solar System Exploration Division, Goddard Space Flight Center, National Aeronautics and Space Administration, Greenbelt, Maryland, USA; Center for Research and Exploration in Space Science and Technology, University of Maryland, College Park, MD 20742, USA
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- Glavin, Daniel P. (författare)
- Solar System Exploration Division, Goddard Space Flight Center, National Aeronautics and Space Administration, Greenbelt, Maryland, USA
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- Kashyap, Srishti (författare)
- Solar System Exploration Division, Goddard Space Flight Center, National Aeronautics and Space Administration, Greenbelt, Maryland, USA; Department of Microbiology University of Massachusetts, Amherst, MA 01003, USA
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- McAdam, Amy C. (författare)
- Solar System Exploration Division, Goddard Space Flight Center, National Aeronautics and Space Administration, Greenbelt, Maryland, USA
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- Ming, Douglas W. (författare)
- Astromaterials Research and Exploration Science Directorate, Johnson Space Center, National Aeronautics and Space Administration, Houston, Texas, USA
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- Steele, Andrew (författare)
- Geophysical Laboratory, Carnegie Institution of Washington, Washington D.C., USA
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- Szopa, Cyril (författare)
- Laboratoire Atmosphères, Milieux et Observations Spatiales, Université Pierre et Marie Curie, Université Versailles Saint-Quentin and CNRS, Paris, France
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- Wray, James J. (författare)
- School of Earth and Atmospheric Sciences, Georgia Institute of Technology, Atlanta, USA
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- Martin-Torres, Javier (författare)
- Luleå tekniska universitet,Rymdteknik,Instituto Andaluz de Ciencias de la Tierra (Consejo Superior de Investigaciones Cientificas–Universidad de Granada), 18100 Armilla, Granada, Spain
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- Zorzano, Maria-Paz (författare)
- Centro de Astrobiologia, 28850 Torrejón de Ardoz, Madrid, Spain
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- Conrad, Pamela G. (författare)
- Solar System Exploration Division, Goddard Space Flight Center, National Aeronautics and Space Administration, Greenbelt, Maryland, USA
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- Mahaffy, Paul R. (författare)
- Solar System Exploration Division, Goddard Space Flight Center, National Aeronautics and Space Administration, Greenbelt, Maryland, USA
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Solar System Exploration Division, Goddard Space Flight Center, National Aeronautics and Space Administration, Greenbelt, Maryland, USA Jacobs Technology, Inc, Johnson Space Center, National Aeronautics and Space Administration, Houston, Texas, USA (creator_code:org_t)
- 2015-03-23
- 2015
- Engelska.
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Ingår i: Proceedings of the National Academy of Sciences of the United States of America. - : Proceedings of the National Academy of Sciences. - 0027-8424 .- 1091-6490. ; 112:14, s. 4245-4250
- Relaterad länk:
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https://www.pnas.org...
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https://urn.kb.se/re...
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https://doi.org/10.1...
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Abstract
Ämnesord
Stäng
- The Sample Analysis at Mars (SAM) investigation on the Mars Science Laboratory (MSL) Curiosity rover has detected oxidized nitrogen-bearing compounds during pyrolysis of scooped aeolian sediments and drilled sedimentary deposits within Gale crater. Total N concentrations ranged from 20 to 250 nmol N per sample. After subtraction of known N sources in SAM, our results support the equivalent of 110–300 ppm of nitrate in the Rocknest (RN) aeolian samples, and 70–260 and 330–1,100 ppm nitrate in John Klein (JK) and Cumberland (CB) mudstone deposits, respectively. Discovery of indigenous martian nitrogen in Mars surface materials has important implications for habitability and, specifically, for the potential evolution of a nitrogen cycle at some point in martian history. The detection of nitrate in both wind-drifted fines (RN) and in mudstone (JK, CB) is likely a result of N2 fixation to nitrate generated by thermal shock from impact or volcanic plume lightning on ancient Mars. Fixed nitrogen could have facilitated the development of a primitive nitrogen cycle on the surface of ancient Mars, potentially providing a biochemically accessible source of nitrogen.
Ämnesord
- TEKNIK OCH TEKNOLOGIER -- Maskinteknik -- Rymd- och flygteknik (hsv//swe)
- ENGINEERING AND TECHNOLOGY -- Mechanical Engineering -- Aerospace Engineering (hsv//eng)
Nyckelord
- Atmosfärsvetenskap
- Atmospheric Science
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Stern, Jennifer ...
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Sutter, Brad
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Freissinet, Caro ...
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Navarro-González ...
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McKay, Christoph ...
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Jr., P. Douglas ...
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Buch, Arnaud
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Brunner, Anna E.
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Coll, Patrice
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Eigenbrode, Jenn ...
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Fairen, Alberto ...
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Franz, Heather B ...
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Glavin, Daniel P ...
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Kashyap, Srishti
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McAdam, Amy C.
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Ming, Douglas W.
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Steele, Andrew
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Szopa, Cyril
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Wray, James J.
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Martin-Torres, J ...
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Zorzano, Maria-P ...
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Conrad, Pamela G ...
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Mahaffy, Paul R.
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