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Curiosity at Gale Crater, Mars: Characterization and Analysis of the Rocknest Sand Shadow Public Deposited

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  • 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, sulfur dioxide, carbon dioxide, and chlorine) detected by the Sample Analysis at Mars instrument and of the fine-grained nanophase oxide component first described from basaltic soils analyzed by MERs. The similarity between soils and aeolian materials analyzed at Gusev Crater, Meridiani Planum, and Gale Crater implies locally sourced, globally similar basaltic materials or globally and regionally sourced basaltic components deposited locally at all three locations.
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  • Blake, D. F., Goetz, W., Madsen, M. B., Sullivan, R., Gellert, R., Campbell, I., . . . MSL Sci Team. (2013). Curiosity at gale crater, mars: Characterization and analysis of the rocknest sand shadow. Science (New York, N.Y.), 341(6153), 1239505. doi:10.1126/science.1239505
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  • M.B.M. was funded by the Danish Council for Independent Research/Natural Sciences (Det Frie Forskningsråd Natur og Univers FNU grants 12-127126 and 11-107019). W.G. acknowledges partial funding by the Deutsche Forschungsgemeinschaft (DFG grant GO 2288/1-1).
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  • description.provenance : Made available in DSpace on 2013-10-29T15:43:57Z (GMT). No. of bitstreams: 1 FiskMCEOASCuriosityGaleCrater.pdf: 1317721 bytes, checksum: 6f298c2bdbca8bf1ef25cac706ff7f42 (MD5) Previous issue date: 2013-09-27
  • description.provenance : Submitted by Deborah Campbell (deborah.campbell@oregonstate.edu) on 2013-10-29T15:43:57Z No. of bitstreams: 1 FiskMCEOASCuriosityGaleCrater.pdf: 1317721 bytes, checksum: 6f298c2bdbca8bf1ef25cac706ff7f42 (MD5)

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