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Soil Diversity and Hydration as Observed by ChemCam at Gale Crater, Mars Public Deposited

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  • Abstract: The ChemCam instrument, which provides insight into martian soil chemistry at the submillimeter scale, identified two principal soil types along the Curiosity rover traverse: a fine-grained mafic type and a locally derived, coarse-grained felsic type. The mafic soil component is representative of widespread martian soils and is similar in composition to the martian dust. It possesses a ubiquitous hydrogen signature in ChemCam spectra, corresponding to the hydration of the amorphous phases found in the soil by the CheMin instrument. This hydration likely accounts for an important fraction of the global hydration of the surface seen by previous orbital measurements. ChemCam analyses did not reveal any significant exchange of water vapor between the regolith and the atmosphere. These observations provide constraints on the nature of the amorphous phases and their hydration.
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  • Meslin, P., Sautter, V., Le Mouélic, S., Wiens, R. C., Fabre, C., Goetz, W., . . . MSL Sci Team. (2013). Soil diversity and hydration as observed by ChemCam at gale crater, mars. Science (New York, N.Y.), 341(6153), 1238670. doi:10.1126/science.1238670
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  • 341
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  • 6153
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  • This research was carried out with funding from the Centre National d’Etudes Spatiales (CNES). Work in the United States was carried out under contract from NASA’s Mars Program Office. W.G. acknowledges partial funding from Deutsche Forschungsgemeinschaft grant GO 2288/1-1.
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  • description.provenance : Made available in DSpace on 2013-10-29T16:09:33Z (GMT). No. of bitstreams: 1 FiskMCEOASSoilDiversityHydration.pdf: 5234719 bytes, checksum: c34e4bdda773e13be810383a556e3b50 (MD5) Previous issue date: 2013-09-27
  • description.provenance : Submitted by Deborah Campbell (deborah.campbell@oregonstate.edu) on 2013-10-29T16:09:33Z No. of bitstreams: 1 FiskMCEOASSoilDiversityHydration.pdf: 5234719 bytes, checksum: c34e4bdda773e13be810383a556e3b50 (MD5)

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