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ChemCam: Chemostratigraphy by the First Mars Microprobe
Los Alamos National Laboratory, Space Remote Sensing, Los Alamos National Laboratory, Los Alamos, International Space and Response Division, Los Alamos National Laboratory.
Institut de Recherche en Astrophysique et Planetologie, Toulouse.
Luleå tekniska universitet, Institutionen för system- och rymdteknik, Rymdteknik.ORCID-id: 0000-0001-6479-2236
2015 (engelsk)Inngår i: Elements, ISSN 1811-5209, E-ISSN 1811-5217, Vol. 11, nr 1, s. 33-38Artikkel i tidsskrift (Fagfellevurdert) Published
Abstract [en]

The ChemCam laser-induced breakdown spectrometer on the rover Curiosity has provided more than 200,000 spectra from over 5000 different locations on Mars. This instrument is the first chemical microprobe on Mars and has an analytical footprint 0.3–0.6 mm in diameter. ChemCam has observed a measure of hydration in all the sedimentary materials encountered along the rover traverse in Gale Crater, indicating the ubiquity of phyllosilicates as a constituent of the analyzed sandstones, mudstones, and conglomerates. Diagenetic features, including calcium sulfate veins, millimeter-thick magnesium-rich diagenetic ridges, and manganese-rich rock surfaces, provide clues to water–rock interactions. Float clasts of coarse-grained igneous rocks are rich in alkali feldspars and some are enriched in fluorine, indicating greater magmatic evolution than expected on Mars. The identification of individual soil components has contributed to our understanding of the evolution of Martian soil. These observations have broadened our understanding of Mars as an active and once habitable planet.

sted, utgiver, år, opplag, sider
2015. Vol. 11, nr 1, s. 33-38
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URN: urn:nbn:se:ltu:diva-15745DOI: 10.2113/gselements.11.1.33ISI: 000349650900008Lokal ID: f4b2e3da-2dc6-4d3f-9417-b4a1cbc6440eOAI: oai:DiVA.org:ltu-15745DiVA, id: diva2:988720
Merknad

Godkänd; 2015; Bibliografisk uppgift: Javier Martin-Torres ingår i MSL Science Team; 20150303 (javmar)

Tilgjengelig fra: 2016-09-29 Laget: 2016-09-29 Sist oppdatert: 2019-05-14bibliografisk kontrollert

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