Vaniman, D. T. and Bish, D. L. and Ming, D. W. and Bristow, T. F. and Morris, R. V. and Blake, D. F. and Chipera, S. J. and Morrison, S. M. and Treiman, A. H. and Rampe, E. B. and Rice, M. and Achilles, C. N. and Grotzinger, J. and McLennan, S. M. and Williams, J. and Bell, J., III and Newsom, H. and Downs, R. T. and Maurice, S. and Sarrazin, P. and Yen, A. S. and Morookian, J. M. and Farmer, J. D. and Stack, K. and Milliken, R. E. and Ehlmann, B. and Sumner, D. Y. and Berger, G. and Crisp, J. A. and Hurowitz, J. A. and Anderson, R. and Des Marais, D. and Stolper, E. M. and Edgett, K. S. and Gupta, S. and Spanovich, N. (2014) Mineralogy of a Mudstone at Yellowknife Bay, Gale Crater, Mars. Science, 343 (6169). Art. no. 1243480 . ISSN 0036-8075. http://resolver.caltech.edu/CaltechAUTHORS:20131122-100923777
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Sedimentary rocks at Yellowknife Bay (Gale Crater) on Mars include mudstone sampled by the Curiosity rover. The samples, John Klein and Cumberland, contain detrital basaltic minerals, Ca-sulfates, Fe oxide/hydroxides, Fe-sulfides, amorphous material, and trioctahedral smectites. The John Klein smectite has basal spacing of ~10 Å indicating little interlayer hydration. The Cumberland smectite has basal spacing at ~13.2 Å as well as ~10 Å. The ~13.2 Å spacing suggests a partially chloritized interlayer or interlayer Mg or Ca facilitating H_2O retention. Basaltic minerals in the mudstone are similar to those in nearby eolian deposits. However, the mudstone has far less Fe-forsterite, possibly lost with formation of smectite plus magnetite. Late Noachian/Early Hesperian or younger age indicates that clay mineral formation on Mars extended beyond Noachian time.
|Alternate Title:||Exploring Martian Habitability|
|Additional Information:||Copyright 2013 American Association for the Advancement of Science. Received for publication 19 July 2013. Accepted for publication 29 October 2013. Published Online December 9 2013. This paper was significantly improved by comments and recommendations from two anonymous reviewers. Support from the NASA Mars Science Laboratory Mission is gratefully acknowledged. Some of this research was carried out at the Jet Propulsion Laboratory, California Institute of Technology, under a contract with the National Aeronautics and Space Administration.|
|Subject Keywords:||Yellowknife Bay ; Gale Crater ; Mars ; Mars Science Laboratory ; Curiosity|
|Non-Subject Keywords:||Mars Science Laboratory ; Curiosity ; NASA|
|Official Citation:||Mineralogy of a Mudstone at Yellowknife Bay, Gale Crater, Mars D. T. Vaniman, D. L. Bish, D. W. Ming, T. F. Bristow, R. V. Morris, D. F. Blake, S. J. Chipera, S. M. Morrison, A. H. Treiman, E. B. Rampe, M. Rice, C. N. Achilles, J. P. Grotzinger, S. M. McLennan, J. Williams, J. F. Bell III, H. E. Newsom, R. T. Downs, S. Maurice, P. Sarrazin, A. S. Yen, J. M. Morookian, J. D. Farmer, K. Stack, R. E. Milliken, B. L. Ehlmann, D. Y. Sumner, G. Berger, J. A. Crisp, J. A. Hurowitz, R. Anderson, D. J. Des Marais, E. M. Stolper, K. S. Edgett, S. Gupta, N. Spanovich, and MSL Science Team Science 24 January 2014: 343 (6169), 1243480Published online 9 December 2013 [DOI:10.1126/science.1243480]|
|Usage Policy:||No commercial reproduction, distribution, display or performance rights in this work are provided.|
|Deposited By:||Katherine Johnson|
|Deposited On:||09 Dec 2013 22:51|
|Last Modified:||28 Jan 2014 18:40|
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