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dc.contributor.authorMorris, Richard Ven_UK
dc.contributor.authorSchröder, Christianen_UK
dc.contributor.authorKlingelhöfer, Göstaren_UK
dc.contributor.authorAgresti, David Gen_UK
dc.contributor.editorBishop, Janice Len_UK
dc.contributor.editorBell, James Fen_UK
dc.contributor.editorMoersch, Jeffrey Een_UK
dc.description.abstractMössbauer instruments were included on the Mars Exploration Rover (MER) Mission to determine the mineralogical composition, diversity, and oxidation state of Fe-bearing igneous materials and alteration products. A total of 16 Fe-bearing phases (mutually consistent with bulk-sample chemistry) were identified, including Fe associated with the rock-forming minerals olivine, pyroxene, magnetite, ilmenite, and chromite and alteration products including Fe3+-bearing oxyhydroxides (nanophase ferric oxide, hematite, and goethite) and sulfates (jarosite and an unassigned Fe3+ sulfate phase), and Fe2+ carbonate. Igneous rock types ranged from olivine-pyroxene and olivine-pyroxene-magnetite basalts to ultramafic rocks at Gusev Crater. Jarosite-hematite bedrock was pervasive at Meridiani Planum, and concretions winnowed from the outcrop were mineralogically hematite. Because their structures contain hydroxyl, goethite and jarosite provide mineralogical evidence for aqueous processes on Mars, and jarosite and Fe3+-sulfate are evidence for acid-sulfate processes at both Gusev Crater and Meridiani Planum. A population of rocks on the Meridiani Planum outcrop was identified as iron and stony meteorites by the presence of Fe metal (kamacite) and the sulfide troilite. The MER mission demonstrates that Mössbauer spectrometers landed on any Fe-bearing planetary surface provide first-order information on igneous provinces, alteration state, and alteration style and provide well-constrained criteria for sample selection on planetary sample-return missions including planets, moons, and asteroids.en_UK
dc.publisherCambridge University Pressen_UK
dc.relationMorris RV, Schröder C, Klingelhöfer G & Agresti DG (2019) Mössbauer Spectroscopy at Gusev Crater and Meridiani Planum: Iron Mineralogy, Oxidation State, and Alteration on Mars. In: Bishop JL, Bell JF & Moersch JE (eds.) Remote Compositional Analysis: Techniques for Understanding Spectroscopy, Mineralogy, and Geochemistry of Planetary Surfaces. Cambridge Planetary Science, 24. Cambridge: Cambridge University Press, pp. 538-554.;
dc.relation.ispartofseriesCambridge Planetary Science, 24en_UK
dc.rightsThis item has been embargoed for a period. During the embargo 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. This material has been published in Remote Compositional Analysis: Techniques for Understanding Spectroscopy, Mineralogy, and Geochemistry of Planetary Surfaces edited by Bishop JL, Moersch J, Bell JF. This version is free to view and download for personal use only. Not for re-distribution, re-sale or use in derivative works. © Cambridge University Pressen_UK
dc.titleMössbauer Spectroscopy at Gusev Crater and Meridiani Planum: Iron Mineralogy, Oxidation State, and Alteration on Marsen_UK
dc.typePart of book or chapter of booken_UK
dc.rights.embargoreason[Morris_2018 MarsBk28_MER Moessbauer_20171121_revise.pdf] Publisher requires embargo of 6 months after formal publication.en_UK
dc.type.statusAM - Accepted Manuscripten_UK
dc.contributor.funderScience & Technology Facilities Councilen_UK
dc.citation.btitleRemote Compositional Analysis: Techniques for Understanding Spectroscopy, Mineralogy, and Geochemistry of Planetary Surfacesen_UK
dc.contributor.affiliationNASA Johnson Space Centeren_UK
dc.contributor.affiliationBiological and Environmental Sciencesen_UK
dc.contributor.affiliationJohannes Gutenberg University of Mainzen_UK
dc.contributor.affiliationUniversity of Alabama at Birminghamen_UK
dc.relation.funderprojectContinued geochemical investigation of Noachian crust at Endeavour Crater with Mars Exploration Rover Opportunityen_UK
rioxxterms.typeBook chapteren_UK
local.rioxx.authorMorris, Richard V|en_UK
local.rioxx.authorSchröder, Christian|0000-0002-7935-6039en_UK
local.rioxx.authorKlingelhöfer, Göstar|en_UK
local.rioxx.authorAgresti, David G|en_UK
local.rioxx.projectST/R001278/1|Science & Technology Facilities Council|en_UK
local.rioxx.contributorBishop, Janice L|en_UK
local.rioxx.contributorBell, James F|en_UK
local.rioxx.contributorMoersch, Jeffrey E|en_UK
local.rioxx.filenameMorris_2018 MarsBk28_MER Moessbauer_20171121_revise.pdfen_UK
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