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Martian Eolian Dust Probed by ChemCam

Lasue, J. and Cousin, A. and Meslin, P.-Y. and Mangold, N. and Wiens, R. C. and Berger, G. and Dehouck, E. and Forni, O. and Goetz, W. and Gasnault, O. and Rapin, W. and Schröder, Susanne and Ollila, A. and Johnson, J. and Le Mouélic, S. and Maurice, S. and Anderson, R. and Blaney, D. and Clark, B. and Clegg, S. M. and d'Uston, C. and Fabre, C. and Lanza, N. and Madsen, M. B. and Martin-Torres, J. and Melikechi, N. and Newsom, H. and Sautter, V. and Zorzano, M. P. (2018) Martian Eolian Dust Probed by ChemCam. Geophysical Research Letters, 45. Wiley. DOI: 10.1029/2018GL079210 ISSN 0094-8276

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Official URL: http://dx.doi.org/10.1029/2018GL079210

Abstract

The ubiquitous eolian dust on Mars plays important roles in the current sedimentary and atmospheric processes of the planet. The ChemCam instrument retrieves a consistent eolian dust composition at the submillimeter scale from every first laser shot on Mars targets. Its composition presents significant differences with the Aeolis Palus soils and the Bagnold dunes as it contains lower CaO and higher SiO2. The dust FeO and TiO2 contents are also higher, probably associated with nanophase oxide components. The dust spectra show the presence of volatile elements (S and Cl), and the hydrogen content is similar to Bagnold sands but lower than Aeolis Palus soils. Consequently, the dust may be a contributor to the amorphous component of soils, but differences in composition indicate that the two materials are not equivalent.

Item URL in elib:https://elib.dlr.de/123350/
Document Type:Article
Title:Martian Eolian Dust Probed by ChemCam
Authors:
AuthorsInstitution or Email of AuthorsAuthors ORCID iD
Lasue, J.UNSPECIFIEDUNSPECIFIED
Cousin, A.UNSPECIFIEDUNSPECIFIED
Meslin, P.-Y.UNSPECIFIEDUNSPECIFIED
Mangold, N.UNSPECIFIEDUNSPECIFIED
Wiens, R. C.UNSPECIFIEDUNSPECIFIED
Berger, G.UNSPECIFIEDUNSPECIFIED
Dehouck, E.UNSPECIFIEDUNSPECIFIED
Forni, O.UNSPECIFIEDUNSPECIFIED
Goetz, W.UNSPECIFIEDUNSPECIFIED
Gasnault, O.UNSPECIFIEDUNSPECIFIED
Rapin, W.UNSPECIFIEDUNSPECIFIED
Schröder, SusanneSusanne.Schroeder (at) dlr.deUNSPECIFIED
Ollila, A.UNSPECIFIEDUNSPECIFIED
Johnson, J.UNSPECIFIEDUNSPECIFIED
Le Mouélic, S.UNSPECIFIEDUNSPECIFIED
Maurice, S.UNSPECIFIEDUNSPECIFIED
Anderson, R.UNSPECIFIEDUNSPECIFIED
Blaney, D.UNSPECIFIEDUNSPECIFIED
Clark, B.UNSPECIFIEDUNSPECIFIED
Clegg, S. M.UNSPECIFIEDUNSPECIFIED
d'Uston, C.UNSPECIFIEDUNSPECIFIED
Fabre, C.UNSPECIFIEDUNSPECIFIED
Lanza, N.UNSPECIFIEDUNSPECIFIED
Madsen, M. B.UNSPECIFIEDUNSPECIFIED
Martin-Torres, J.UNSPECIFIEDUNSPECIFIED
Melikechi, N.UNSPECIFIEDUNSPECIFIED
Newsom, H.UNSPECIFIEDUNSPECIFIED
Sautter, V.UNSPECIFIEDUNSPECIFIED
Zorzano, M. P.UNSPECIFIEDUNSPECIFIED
Date:2018
Journal or Publication Title:Geophysical Research Letters
Refereed publication:Yes
Open Access:No
Gold Open Access:No
In SCOPUS:Yes
In ISI Web of Science:Yes
Volume:45
DOI :10.1029/2018GL079210
Publisher:Wiley
ISSN:0094-8276
Status:Published
Keywords:Mars, dust, ChemCam
HGF - Research field:Aeronautics, Space and Transport
HGF - Program:Space
HGF - Program Themes:Space Technology
DLR - Research area:Raumfahrt
DLR - Program:R SY - Technik für Raumfahrtsysteme
DLR - Research theme (Project):R - Vorhaben OptoRob, R - Vorhaben Exploration des Sonnensystems
Location: Berlin-Adlershof
Institutes and Institutions:Institute of Optical Sensor Systems > Terahertz and Laser Spectroscopy
Institute of Optical Sensor Systems
Deposited By: Schröder, Susanne
Deposited On:21 Nov 2018 10:27
Last Modified:21 Nov 2018 10:27

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