Organic matter preserved in 3-billion-year-old mudstones at Gale crater, Mars-Reference-Cited by-同舟云学术

Organic matter preserved in 3-billion-year-old mudstones at Gale crater, Mars

Published:2018-06-08 Issue:6393 Volume:360 Page:1096-1101
ISSN:0036-8075
Container-title:Science
language:en
Short-container-title:Science

Author:

Eigenbrode Jennifer L.¹^ORCID,Summons Roger E.²^ORCID,Steele Andrew³^ORCID,Freissinet Caroline¹,Millan Maëva⁴,Navarro-González Rafael⁵^ORCID,Sutter Brad⁶⁷^ORCID,McAdam Amy C.¹^ORCID,Franz Heather B.¹,Glavin Daniel P.¹^ORCID,Archer Paul D.⁶,Mahaffy Paul R.¹^ORCID,Conrad Pamela G.¹^ORCID,Hurowitz Joel A.⁸^ORCID,Grotzinger John P.⁹^ORCID,Gupta Sanjeev¹⁰^ORCID,Ming Doug W.⁷^ORCID,Sumner Dawn Y.¹¹^ORCID,Szopa Cyril⁴,Malespin Charles¹^ORCID,Buch Arnaud¹²^ORCID,Coll Patrice¹³^ORCID

Affiliation:

1. Solar System Exploration Division, NASA Goddard Space Flight Center, Greenbelt, MD 20771, USA.

2. Department of Earth, Atmospheric and Planetary Sciences, Massachusetts Institute of Technology, Cambridge, MA 02139, USA.

3. Geophysical Laboratory, Carnegie Institution of Washington, Washington, DC 20015, USA.

4. Laboratoire Atmosphères, Milieux, Observations Spatiales, Université Pierre et Marie Curie, Université Versailles Saint-Quentin and CNRS, Paris, France.

5. Instituto de Ciencias Nucleares, Universidad Nacional Autónoma de México, Ciudad Universitaria, Cuidad de México 04510, México.

6. Jacobs Technology, Houston, TX 77058, USA.

7. Astromaterials Research and Exploration Science Division, NASA Johnson Space Center, Houston, TX 77058, USA.

8. Department of Geosciences, Stony Brook University, Stony Brook, NY 11794, USA.

9. Division of Geological and Planetary Sciences, California Institute of Technology, Pasadena, CA 91125, USA.

10. Department of Earth Science and Engineering, Imperial College London, London SW7 2AZ, UK.

11. Department of Earth and Planetary Sciences, University of California, Davis, CA 95616, USA.

12. Laboratoire Génie des Procédés et Matériaux, Centrale Supélec, Gif-sur-Yvette, France.

13. Laboratoire Inter-Universitaire des Systèmes Atmosphériques, Université Paris-Est Créteil, Université Paris Diderot and CNRS, Créteil, France.

Abstract

Measuring martian organics and methane The Curiosity rover has been sampling on Mars for the past 5 years (see the Perspective by ten Kate). Eigenbrode et al. used two instruments in the SAM (Sample Analysis at Mars) suite to catch traces of complex organics preserved in 3-billion-year-old sediments. Heating the sediments released an array of organics and volatiles reminiscent of organic-rich sedimentary rock found on Earth. Most methane on Earth is produced by biological sources, but numerous abiotic processes have been proposed to explain martian methane. Webster et al. report atmospheric measurements of methane covering 3 martian years and found that the background level varies with the local seasons. The seasonal variation provides an important clue for determining the origin of martian methane. Science , this issue p. 1096 , p. 1093 ; see also p. 1068

Funder

National Aeronautics and Space Administration

Publisher

American Association for the Advancement of Science (AAAS)

Subject

Multidisciplinary

Reference57 articles.

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