| Title: | "Volatile and organic compositions of sedimentary rocks in Yellowknife Bay, Gale crater, Mars" |
| Author(s): | Ming DW; Archer PD; Glavin DP; Eigenbrode JL; Franz HB; Sutter B; Brunner AE; Stern JC; Freissinet C; McAdam AC; Mahaffy PR; Cabane M; Coll P; Campbell JL; Atreya SK; Niles PB; Bell JF; Bish DL; Brinckerhoff WB; Buch A; Conrad PG; Des Marais DJ; Ehlmann BL; Fairen AG; Farley K; Flesch GJ; Francois P; Gellert R; Grant JA; Grotzinger JP; Gupta S; Herkenhoff KE; Hurowitz JA; Leshin LA; Lewis KW; McLennan SM; Miller KE; Moersch J; Morris RV; Navarro-Gonzalez R; Pavlov AA; Perrett GM; Pradler I; Squyres SW; Summons RE; Steele A; Stolper EM; Sumner DY; Szopa C; Teinturier S; Trainer MG; Treiman AH; Vaniman DT; Vasavada AR; Webster CR; Wray JJ; Yingst RA; Team MSLS; |
| Address: | "Astromaterials Research and Exploration Science Directorate, NASA Johnson Space Center, Houston, TX 77058, USA" |
| ISSN/ISBN: | 1095-9203 (Electronic) 0036-8075 (Linking) |
| Abstract: | "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 suggests the presence of oxychlorine phase(s). Sulfides are likely sources for sulfur-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 carbon sources may be preserved in the mudstone; however, the carbon source for the chlorinated hydrocarbons is not definitively of martian origin" |
| Keywords: | "Bays Carbon Dioxide/analysis/chemistry *Exobiology Extraterrestrial Environment/*chemistry Geologic Sediments/analysis/chemistry Hydrocarbons, Chlorinated/*analysis *Mars Oxygen/analysis/chemistry Sulfides/analysis/chemistry Volatile Organic Compounds/*an;" |
| Notes: | "MedlineMing, D W Archer, P D Jr 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 3rd Bish, D L Brinckerhoff, W B Buch, A Conrad, P G Des Marais, D J Ehlmann, B L Fairen, 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-Gonzalez, 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 eng Research Support, Non-U.S. Gov't Research Support, U.S. Gov't, Non-P.H.S. 2013/12/11 Science. 2014 Jan 24; 343(6169):1245267. doi: 10.1126/science.1245267. Epub 2013 Dec 9" |
