Evidence for perchlorates and the origin of chlorinated hydrocarbons detected by SAM at the Rocknest aeolian deposit in Gale Crater
نویسندگان
چکیده
Daniel P. Glavin, Caroline Freissinet, Kristen E. Miller, Jennifer L. Eigenbrode, Anna E. Brunner, Arnaud Buch, Brad Sutter, P. Douglas Archer Jr., Sushil K. Atreya, William B. Brinckerhoff, Michel Cabane, Patrice Coll, Pamela G. Conrad, David Coscia, Jason P. Dworkin, Heather B. Franz, John P. Grotzinger, Laurie A. Leshin, Mildred G. Martin, Christopher McKay, Douglas W. Ming, Rafael Navarro-González, Alexander Pavlov, Andrew Steele, Roger E. Summons, Cyril Szopa, Samuel Teinturier, and Paul R. Mahaffy
منابع مشابه
Curiosity at Gale crater, Mars: characterization and analysis of the Rocknest sand shadow.
The Rocknest aeolian deposit is similar to aeolian features analyzed by the Mars Exploration Rovers (MERs) Spirit and Opportunity. The fraction of sand <150 micrometers in size contains ~55% crystalline material consistent with a basaltic heritage and ~45% x-ray amorphous material. The amorphous component of Rocknest is iron-rich and silicon-poor and is the host of the volatiles (water, oxygen,...
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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 can...
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The Mars Science Laboratory Curiosity rover performed coordinated measurements to examine the textures and compositions of aeolian sands in the active Bagnold dune field. The Bagnold sands are rounded to subrounded, very fine to medium sized (~45-500 μm) with ≥6 distinct grain colors. In contrast to sands examined by Curiosity in a dust-covered, inactive bedform called Rocknest and soils at oth...
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