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Field-portable Mossbauer spectroscopy on Earth, the Moon, Mars, and beyond

Citation

Schroder, C and Klingelhofer, G and Morris, RV and Bernhardt, B and Blumers, M and Fleischer, I and Rodionov, DS and Lopez, JG and de Souza Jr, PA, Field-portable Mossbauer spectroscopy on Earth, the Moon, Mars, and beyond, Geochemistry: Exploration, Environment, Analysis, 11, (2) pp. 129-143. ISSN 1467-7873 (2011) [Refereed Article]


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Copyright Statement

Copyright 2011 AAG/Geological Society of London

DOI: doi:10.1144/1467-7873/09-IAGS-018

Abstract

Iron occurs naturally as Fe2+, Fe3+, and, to a lesser extent, as Fe0. Many fundamental (bio)geochemical processes are based on redox cycling between these oxidation states. Mössbauer spectroscopy provides quantitative information about the distribution of Fe among its oxidation states, identification of Fe-bearing phases, and relative distribution of Fe among those phases. Portable, miniaturised Mössbauer spectrometers were developed for NASA’s Mars Exploration Rovers (in operation since 2004) and provide a means for non-destructive, in-situ field investigations. On Mars, these instruments provided evidence for aqueous activity with implications for habitability, were applied in geological mapping of the landing sites, and helped to identify meteorites, for example. On Earth, they were used in field studies of green rust, the identification of air pollution sources, or the study of archaeological artefacts. Their application to in-situ resource utilisation (ISRU) on the Moon has been demonstrated in a recent NASA field test of hardware for oxygen production. A new detector system in an advanced version of these instruments is based on Si Drift Detectors and permits the simultaneous acquisition of X-ray fluorescence spectra to determine elemental compositions.

Item Details

Item Type:Refereed Article
Keywords:Fe (bio)geochemistry, archaeometry, in-situ resource utilisation (ISRU), non- destructive
Research Division:Physical Sciences
Research Group:Condensed Matter Physics
Research Field:Condensed Matter Characterisation Technique Development
Objective Division:Expanding Knowledge
Objective Group:Expanding Knowledge
Objective Field:Expanding Knowledge in the Physical Sciences
Author:de Souza Jr, PA (Professor Paulo de Souza Junior)
ID Code:77656
Year Published:2011
Web of Science® Times Cited:4
Deposited By:Computing and Information Systems
Deposited On:2012-05-15
Last Modified:2017-10-06
Downloads:1 View Download Statistics

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