Volatile and Organic Compositions of Sedimentary Rocks in Yellowknife Bay, Gale Crater, Mars.

H₂O, CO₂, SO₂, O₂, H₂, H₂S, HCl, chlorinated hydrocarbons, NO and other trace gases were evolved during pyrolysis of two mudstone samples acquired by the Curiosity rover at Yellowknife Bay within Gale crater, Mars. H₂O/OH-bearing phases included 2:1 phyllosilicate(s), bassanite, akaganeite, and amor...

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Published in:Science
Main Authors: Ming, D W, Archer, P D, Glavin, D P, Eigenbrode, J L, Franz, H B, Sutter, B, Brunner, A E, Stern, J C, Freissinet, C, McAdam, A C, Mahaffy, P R, Cabane, M, Coll, P, Campbell, J L, Atreya, S K, Niles, P B, Bell, J F, Bish, D L, Brinckerhoff, W B, Buch, A, Conrad, P G, Des Marais, D J, Ehlmann, B L, Fairén, A G, Farley, K, Flesch, G J, Francois, P, Gellert, R, Grant, J A, Grotzinger, J P, Gupta, S, Herkenhoff, K E, Hurowitz, J A, Leshin, L A, Lewis, K W, McLennan, S M, Miller, K E, Moersch, J, Morris, R V, Navarro-González, R, Pavlov, A A, Perrett, G M, Pradler, I, Squyres, S W, Summons, R E, Steele, A, Stolper, E M, Sumner, D Y, Szopa, C, Teinturier, S, Trainer, M G, Treiman, A H, Vaniman, D T, Vasavada, A R, Webster, C R, Wray, J J, Yingst, R A and the MSL Science Team, DLR Collaborator, Reitz G
Format: Other Non-Article Part of Journal/Newspaper
Language:unknown
Published: American Association for the Advancement of Science (AAAS) 2013
Subjects:
Strahlenbiologie
Yellowknife
Yellowknife Bay
Online Access:http://elib.dlr.de/87323/
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Summary:H₂O, CO₂, SO₂, O₂, H₂, H₂S, HCl, chlorinated hydrocarbons, NO and other trace gases were evolved during pyrolysis of two mudstone samples acquired by the Curiosity rover at Yellowknife Bay within Gale crater, Mars. H₂O/OH-bearing phases included 2:1 phyllosilicate(s), bassanite, akaganeite, and amorphous materials. Thermal decomposition of carbonates and combustion of organic materials are candidate sources for the CO₂. Concurrent evolution of O₂ and chlorinated hydrocarbons suggest the presence of oxychlorine phase(s). Sulfides are likely sources for S-bearing species. Higher abundances of chlorinated hydrocarbons in the mudstone compared with Rocknest windblown materials previously analyzed by Curiosity suggest that indigenous martian or meteoritic organic C sources may be preserved in the mudstone; however, the C source for the chlorinated hydrocarbons is not definitively of martian origin.

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