Identification of Carbonate-Rich Outcrops on Mars by the Spirit Rover-Reference-Cited by-同舟云学术

Identification of Carbonate-Rich Outcrops on Mars by the Spirit Rover

Published:2010-07-23 Issue:5990 Volume:329 Page:421-424
ISSN:0036-8075
Container-title:Science
language:en
Short-container-title:Science

Author:

Morris Richard V.¹,Ruff Steven W.²,Gellert Ralf³,Ming Douglas W.¹,Arvidson Raymond E.⁴,Clark Benton C.⁵,Golden D. C.⁶,Siebach Kirsten⁴,Klingelhöfer Göstar⁷,Schröder Christian⁸,Fleischer Iris⁷,Yen Albert S.⁹,Squyres Steven W.¹⁰

Affiliation:

1. NASA Johnson Space Center, Houston, TX 77058, USA.

2. Arizona State University, Tempe, AZ 85287, USA.

3. University of Guelph, Guelph, Ontario, Canada.

4. Washington University in Saint Louis, St. Louis, MO 63130, USA.

5. Space Sciences Institute, Boulder, CO 80301, USA.

6. Engineering and Science Contract Group–Hamilton Sundstrand, Houston TX 77058, USA.

7. Johannes Gutenberg-Universität, Mainz, Germany.

8. University of Bayreuth and Eberhard Karls University of Tübingen, Tübingen, Germany.

9. Jet Propulsion Laboratory, Pasadena, CA 91109, USA.

10. Cornell University, Ithaca, NY 14853, USA.

Abstract

Ancient Carbonate Minerals on Mars The historical presence of liquid water on Mars together with a CO 2 -rich atmosphere should have resulted in the accumulation of large deposits of carbonate minerals. Yet, evidence for the presence of carbonates on the surface of Mars has been scarce. Using data collected by the Mars Exploration Rover, Spirit, Morris et al. (p. 421 , published online 3 June; see the Perspective by

Harvey

) now present evidence for carbonate-rich outcrops in the Comanche outcrops within the Gusev crater. The carbonate is a major outcrop component and may have formed in the Noachian era (∼4 billion years ago) by precipitation from hydrothermal solutions that passed through buried carbonate deposits. Thus, it is likely that extensive aqueous activity under neutral pH conditions did occur on Mars.

Publisher

American Association for the Advancement of Science (AAAS)

Subject

Multidisciplinary

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