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In Situ Compositional Measurements of Rocks and Soils with the Alpha Particle X-ray Spectrometer on NASA's Mars Rovers

Gellert, R. and Clark, B. C. and MSL and MER Science Teams and DLR Collaborator (MSL Science Team), Reitz G. (2015) In Situ Compositional Measurements of Rocks and Soils with the Alpha Particle X-ray Spectrometer on NASA's Mars Rovers. Elements, 11 (1), pp. 39-44. GeoScienceWorld (Mineralogical Association of Canada). DOI: 10.2113/gselements.11.1.39 ISSN 1811-5209

Full text not available from this repository.

Official URL: http://dx.doi.org/10.2113/gselements.11.1.39

Abstract

The Alpha Particle X-ray Spectrometer (APXS) is a soda can–sized, arm-mounted instrument that measures the chemical composition of rocks and soils using X-ray spectroscopy. It has been part of the science payload of the four rovers that NASA has landed on Mars. It uses 244Cm sources for a combination of PIXE and XRF to quantify 16 elements. So far, about 700 Martian samples from about 50 km of combined traverses at the four landing sites have been documented. The compositions encountered range from unaltered basaltic rocks and extensive salty sandstones to nearly pure hydrated ferric sulfates and silica-rich subsurface soils. The APXS is used for geochemical reconnaissance, identification of rock and soil types, and sample triage. It provides crucial constraints for use with the mineralogical instruments. The APXS data set allows the four landing sites to be compared with each other and with Martian meteorites, and it provides ground truth measurements for comparison with orbital observations.

Item URL in elib:https://elib.dlr.de/99572/
Document Type:Article
Title:In Situ Compositional Measurements of Rocks and Soils with the Alpha Particle X-ray Spectrometer on NASA's Mars Rovers
Authors:
AuthorsInstitution or Email of AuthorsAuthors ORCID iD
Gellert, R.Department of Physics, University of Guelph ON N1G 2W1, Canada; rgellert (at) uoguelph.caUNSPECIFIED
Clark, B. C. and MSL and MER Science TeamsSpace Science Institute, Boulder, CO 80301, USAUNSPECIFIED
DLR Collaborator (MSL Science Team), Reitz G.Radiation Biology Department, Institute of Aerospace Medicine, German Aerospace Center (DLR), Cologne, Germany.UNSPECIFIED
Date:2015
Journal or Publication Title:Elements
Refereed publication:Yes
Open Access:No
Gold Open Access:No
In SCOPUS:Yes
In ISI Web of Science:Yes
Volume:11
DOI :10.2113/gselements.11.1.39
Page Range:pp. 39-44
Publisher:GeoScienceWorld (Mineralogical Association of Canada)
ISSN:1811-5209
Status:Published
Keywords:Mars geochemistry, XRF, PIXE, APXS, MER, MSL, chemostratigraphy
HGF - Research field:Aeronautics, Space and Transport
HGF - Program:Space
HGF - Program Themes:Space Science and Exploration
DLR - Research area:Raumfahrt
DLR - Program:R EW - Erforschung des Weltraums
DLR - Research theme (Project):R - Vorhaben MSL-Radiation
Location: Köln-Porz
Institutes and Institutions:Institute of Aerospace Medicine > Radiation Biology
Deposited By: Kopp, Kerstin
Deposited On:26 Nov 2015 15:19
Last Modified:10 May 2016 23:34

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