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dc.contributor.authorSchröder, Christianen_UK
dc.contributor.authorBailey, Braden_UK
dc.contributor.authorKlingelhoefer, Goestaren_UK
dc.contributor.authorStaudigel, Huberten_UK
dc.description.abstractThe element Fe and Fe-bearing minerals occur ubiquitously throughout the field of astrobiology. Cycling between the various oxidation states of Fe provides a source of energy available for life. Banded iron formations may record the rise of oxygenic photosynthesis. The distribution of Fe between Fe-bearing minerals and its oxidation states can help to characterize and understand ancient environments with respect to the suitability for life by constraining the primary rock type and the redox conditions under which it crystallized, the extent of alteration and weathering, the type of alteration and weathering products, and the processes and environmental conditions for alteration and weathering. Fe Mo¨ ssbauer spectroscopy is a powerful tool to investigate Fe-bearing compounds. It can identify Fe-bearing minerals, determine Fe oxidation states with high accuracy, quantify the distribution of Fe between mineralogical phases, and provide clues about crystallinity and particle sizes. Two miniaturized Mössbauer spectrometers are on board of the NASA Mars Exploration Rovers Spirit and Opportunity. The Fe-bearing minerals goethite, an iron oxide-hydroxide, and jarosite, an iron hydroxide sulfate, were identified by Mössbauer spectroscopy in Gusev Crater and at Meridiani Planum, respectively, providing in situ proof of an aqueous history of the two landing sites and constraints on their habitability. Hematite identified by Mössbauer spectroscopy at both landing sites adds further evidence for an aqueous history. On Earth, Mössbauer spectroscopy was used to monitor possibly microbially-induced changes of Fe-oxidation states in basaltic glass samples exposed at the Loihi Seamount, a deep sea hydrothermal vent system, which might be analogous to possible extraterrestrial habitats on ancient Mars or the Jovian moon Europa today.en_UK
dc.relationSchröder C, Bailey B, Klingelhoefer G & Staudigel H (2006) Fe Mossbauer spectroscopy as a tool in astrobiology. Planetary and Space Science, 54 (15), pp. 1622-1634.
dc.rightsThe publisher does not allow this work to be made publicly available in this Repository. Please use the Request a Copy feature at the foot of the Repository record to request a copy directly from the author. You can only request a copy if you wish to use this work for your own research or private study.en_UK
dc.subjectMössbauer spectroscopyen_UK
dc.subjecthydrothermal venten_UK
dc.titleFe Mossbauer spectroscopy as a tool in astrobiologyen_UK
dc.typeJournal Articleen_UK
dc.rights.embargoreason[Schroeder2006_fe_moessbauer_spectroscopy_as_a_tool_in_astrobiology.pdf] The publisher does not allow this work to be made publicly available in this Repository therefore there is an embargo on the full text of the work.en_UK
dc.citation.jtitlePlanetary and Space Scienceen_UK
dc.type.statusVoR - Version of Recorden_UK
dc.contributor.affiliationBiological and Environmental Sciencesen_UK
dc.contributor.affiliationUniversity of California, San Diegoen_UK
dc.contributor.affiliationJohannes Gutenberg University of Mainzen_UK
dc.contributor.affiliationUniversity of California, San Diegoen_UK
rioxxterms.typeJournal Article/Reviewen_UK
local.rioxx.authorSchröder, Christian|0000-0002-7935-6039en_UK
local.rioxx.authorBailey, Brad|en_UK
local.rioxx.authorKlingelhoefer, Goestar|en_UK
local.rioxx.authorStaudigel, Hubert|en_UK
local.rioxx.projectInternal Project|University of Stirling|
Appears in Collections:Biological and Environmental Sciences Journal Articles

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