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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 University of Technology, Department of Computer Science, Electrical and Space Engineering, Space Technology.ORCID iD: 0000-0001-6479-2236
2015 (English)In: Elements, ISSN 1811-5209, E-ISSN 1811-5217, Vol. 11, no 1, 33-38 p.Article in journal (Refereed) 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.

Place, publisher, year, edition, pages
2015. Vol. 11, no 1, 33-38 p.
National Category
Aerospace Engineering
Research subject
Atmospheric science
Identifiers
URN: urn:nbn:se:ltu:diva-15745DOI: 10.2113/gselements.11.1.33Local ID: f4b2e3da-2dc6-4d3f-9417-b4a1cbc6440eOAI: oai:DiVA.org:ltu-15745DiVA: diva2:988720
Note
Godkänd; 2015; Bibliografisk uppgift: Javier Martin-Torres ingår i MSL Sci Team.; 20150303 (javmar)Available from: 2016-09-29 Created: 2016-09-29 Last updated: 2017-11-21Bibliographically approved

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