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

被引：235

作者：

Meslin, P-Y. ^{[1
,2
]}

Gasnault, O. ^{[1
,2
]}

Forni, O. ^{[1
,2
]}

Schroeder, S. ^{[1
,2
]}

Cousin, A. ^{[3
]}

Berger, G. ^{[1
,2
]}

Clegg, S. M. ^{[3
]}

Lasue, J. ^{[1
,2
]}

Maurice, S. ^{[1
,2
]}

Sautter, V. ^{[4
]}

Le Mouelic, S. ^{[5
]}

Wiens, R. C. ^{[3
]}

Fabre, C. ^{[6
]}

Goetz, W. ^{[7
]}

Bish, D. ^{[8
]}

Mangold, N. ^{[5
]}

Ehlmann, B. ^{[9
,10
]}

Lanza, N. ^{[3
]}

Harri, A-M. ^{[11
]}

Anderson, R. ^{[12
]}

Rampe, E. ^{[13
]}

McConnochie, T. H. ^{[14
]}

Pinet, P. ^{[1
,2
]}

Blaney, D. ^{[10
]}

Leveille, R. ^{[15
]}

Archer, D. ^{[13
]}

Barraclough, B. ^{[16
]}

Bender, S. ^{[16
]}

Blake, D. ^{[17
]}

Blank, J. G. ^{[17
]}

Bridges, N.

Clark, B. C. ^{[19
]}

DeFlores, L. ^{[10
]}

Delapp, D. ^{[3
]}

Dromart, G. ^{[20
]}

Dyar, M. D. ^{[21
]}

Fisk, M. ^{[22
]}

Gondet, B. ^{[23
]}

Grotzinger, J. ^{[9
]}

Herkenhoff, K. ^{[12
]}

Johnson, J. ^{[18
]}

Lacour, J-L. ^{[24
]}

Langevin, Y. ^{[23
]}

Leshin, L. ^{[25
]}

Lewin, E. ^{[26
]}

Madsen, M. B. ^{[27
]}

Melikechi, N. ^{[28
]}

Mezzacappa, A. ^{[28
]}

Mischna, M. A. ^{[10
]}

Moores, J. E. ^{[29
]}

机构：

[1] Univ Toulouse, UPS OMP, IRAP, F-31028 Toulouse, France

[2] IRAP, CNRS, F-31028 Toulouse 4, France

[3] Los Alamos Natl Lab, Los Alamos, NM 87545 USA

[4] Museum Natl Hist Nat, Lab Mineral & Cosmochim Museum, F-75005 Paris, France

[5] Univ Nantes, LPGN, CNRS, UMR6112, F-44322 Nantes, France

[6] Univ Lorraine, GeoRessources, CNRS, UMR7356, F-54506 Vandoeuvre Les Nancy, France

[7] Max Planck Inst Sonnensyst Forsch, D-37191 Katlenburg Lindau, Germany

[8] Indiana Univ, Bloomington, IN 47405 USA

[9] CALTECH, Pasadena, CA 91125 USA

[10] CALTECH, Jet Prop Lab, Pasadena, CA 91109 USA

[11] Finnish Meteorol Inst, Earth Observat Res Div, FIN-00101 Helsinki, Finland

[12] US Geol Survey, Astrogeol Sci Ctr, Flagstaff, AZ 86001 USA

[13] NASA, Lyndon B Johnson Space Ctr, Houston, TX 77058 USA

[14] Univ Maryland, College Pk, MD 20740 USA

[15] Canadian Space Agcy, St Hubert, PQ J3Y 8Y9, Canada

[16] Planetary Sci Inst, Tucson, AZ 85719 USA

[17] NASA, Ames Res Ctr, Moffett Field, CA 94035 USA

[18] Johns Hopkins Univ, Appl Phys Lab, Laurel, MD 20723 USA

[19] Space Sci Inst, Boulder, CO 80301 USA

[20] ENS, F-69007 Lyon, France

[21] Mt Holyoke Coll, S Hadley, MA 01075 USA

[22] Oregon State Univ, Corvallis, OR 97331 USA

[23] Inst Astrophys Spatiale, F-91405 Orsay, France

[24] Commissariat Energie Atom & Energies Alternat, Ctr Saclay, F-91400 Orsay, France

[25] Rensselaer Polytech Inst, Troy, NY 12180 USA

[26] ISTerre, F-38041 Grenoble, France

[27] Univ Copenhagen, Niels Bohr Inst, DK-2100 Copenhagen, Denmark

[28] Delaware State Univ, Opt Sci Ctr Appl Res, Dover, DE 19901 USA

[29] York Univ, Ctr Res Earth & Space Sci, Toronto, ON M3J 1P3, Canada

[30] Univ New Mexico, Albuquerque, NM 87131 USA

[31] Ctr Natl Etud Spatiales, F-31400 Toulouse, France

[32] Univ Michigan, Dept Atmospher Ocean & Space Sci, Ann Arbor, MI 48109 USA

来源：

SCIENCE | 2013年 / 341卷 / 6153期

关键词：

CHEMICAL-COMPOSITION; INSTRUMENT SUITE; HYDROUS MINERALS; MARTIAN SURFACE; WATER; CHEMISTRY; ALLOPHANE; ROCKS; CURIOSITY; ROCKNEST;

D O I：

10.1126/science.1238670

中图分类号：

O [数理科学和化学]; P [天文学、地球科学]; Q [生物科学]; N [自然科学总论];

学科分类号：

07 ; 0710 ; 09 ;

摘要：

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.

引用

页数：10

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