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

Meslin, P.-Y. and Ganault, O. and Forni, O. and Schröder, S. and Cousin, A. and Berger, G. and Clegg, S. M. and Lasue, J. and Maurice, S. and Sautter, V. and Le Mouélic, S. and Wiens, R. C. and Fabre, C. and Goetz, W. and Bish, D. and Mangold, N. and Ehlmann, B. and Lanza, N. and Harri, A.-M. and Anderson, R. and Rampe, E. B. and McConnochie, T. H. and Pinet, P. and Blaney, D. and Léveillé, R. and Archer, D. and Barraclough, B. and Bender, S. and Blake, D. and Blank, J. G. and Bridges, N. and Clark, B. C. and DeFlores, L. and Delapp, D. and Dromart, G. and Dyar, M. D. and Fisk, M. and Gondet, B. and Grotzinger, J. and Herkenhoff, K. and Johnson, J. and Lacour, J.-L. and Langevin, Y. and Leshin, L. and Lewin, E. and Madsen, M. B. and Melikechi, N. and Mezzacappa, A. and Mischna, M. A. and Moores, J. E. and Newsom, H. and Ollila, A. and Perez, R. and Renno, N. and Sirven, J.-B. and Tokar, R. and de la Torre, M. and d'Uston, L. and Vaniman, D. and Yingst, A. (2013) Soil Diversity and Hydration as Observed by ChemCam at Gale Crater, Mars. Science, 341 (6153). Art. No. 1238670. ISSN 0036-8075. https://resolver.caltech.edu/CaltechAUTHORS:20130930-104342097

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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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ORCID:
AuthorORCID
Meslin, P.-Y.0000-0002-0703-3951
Ganault, O.0000-0002-6979-9012
Forni, O.0000-0001-6772-9689
Schröder, S.0000-0003-1870-3663
Cousin, A.0000-0001-7823-7794
Clegg, S. M.0000-0002-0338-0948
Lasue, J.0000-0001-9082-4457
Sautter, V.0000-0002-4263-7558
Wiens, R. C.0000-0002-3409-7344
Fabre, C.0000-0001-8627-4050
Mangold, N.0000-0002-0022-0631
Ehlmann, B.0000-0002-2745-3240
Lanza, N.0000-0003-4445-7996
Rampe, E. B.0000-0002-6999-0028
Pinet, P.0000-0002-1933-5631
Clark, B. C.0000-0002-5546-8757
Dyar, M. D.0000-0003-4272-793X
Grotzinger, J.0000-0001-9324-1257
Herkenhoff, K.0000-0002-3153-6663
Madsen, M. B.0000-0001-8909-5111
Mischna, M. A.0000-0002-8022-5319
Newsom, H.0000-0002-4358-8161
Alternate Title:Curiosity at Gale Crater
Additional Information:© 2013 American Association for the Advancement of Science. Received 3 April 2013; accepted 15 August 2013. 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. This team gratefully acknowledges JPL for developing and leading this successful mission. The data reported in this paper are archived at the Planetary Data System, accessible at http://pds-geosciences.wustl. edu/missions/msl/index.htm.
Funders:
Funding AgencyGrant Number
Centre National d’Etudes Spatiales (CNES)UNSPECIFIED
NASA Mars Program OfficeUNSPECIFIED
Deutsche Forschungsgemeinschaft (DFG)GO 2288/1-1
Subject Keywords:Gale Crater ; Mars Science Laboratory ; Curiosity
Non-Subject Keywords:Mars Science Laboratory ; Curiosity ; NASA
Issue or Number:6153
Record Number:CaltechAUTHORS:20130930-104342097
Persistent URL:https://resolver.caltech.edu/CaltechAUTHORS:20130930-104342097
Official Citation:Soil Diversity and Hydration as Observed by ChemCam at Gale Crater, Mars P.-Y. Meslin, O. Gasnault, O. Forni, S. Schröder, A. Cousin, G. Berger, S. M. Clegg, J. Lasue, S. Maurice, V. Sautter, S. Le Mouélic, R. C. Wiens, C. Fabre, W. Goetz, D. Bish, N. Mangold, B. Ehlmann, N. Lanza, A.-M. Harri, R. Anderson, E. Rampe, T. H. McConnochie, P. Pinet, D. Blaney, R. Léveillé, D. Archer, B. Barraclough, S. Bender, D. Blake, J. G. Blank, N. Bridges, B. C. Clark, L. DeFlores, D. Delapp, G. Dromart, M. D. Dyar, M. Fisk, B. Gondet, J. Grotzinger, K. Herkenhoff, J. Johnson, J.-L. Lacour, Y. Langevin, L. Leshin, E. Lewin, M. B. Madsen, N. Melikechi, A. Mezzacappa, M. A. Mischna, J. E. Moores, H. Newsom, A. Ollila, R. Perez, N. Renno, J.-B. Sirven, R. Tokar, M. de la Torre, L. d’Uston, D. Vaniman, A. Yingst, and MSL Science Team Science 27 September 2013: 341 (6153), 1238670 [DOI:10.1126/science.1238670]
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:41553
Collection:CaltechAUTHORS
Deposited By: Tony Diaz
Deposited On:30 Sep 2013 18:54
Last Modified:09 Mar 2020 13:19

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