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dc.contributor.authorMcSween, Harry Yen_UK
dc.contributor.authorRuff, Steven Wen_UK
dc.contributor.authorMorris, Richard Vanen_UK
dc.contributor.authorGellert, Ralfen_UK
dc.contributor.authorKlingelhoefer, Goestaren_UK
dc.contributor.authorChristensen, Philip Ren_UK
dc.contributor.authorMcCoy, Timothy Jen_UK
dc.contributor.authorGhosh, Amitabhaen_UK
dc.contributor.authorMoersch, Jeffrey Men_UK
dc.contributor.authorCohen, Barbara Aen_UK
dc.contributor.authorRogers, A Deanneen_UK
dc.contributor.authorSchröder, Christianen_UK
dc.contributor.authorSquyres, Steven Wen_UK
dc.contributor.authorCrisp, Joy Aen_UK
dc.contributor.authorYen, Albert Sen_UK
dc.description.abstractComplete sets of mineral abundances for relatively unaltered volcanic or volcaniclastic rocks in Gusev Crater have been determined by modeling Mössbauer subspectral areas as mineral weight percentages, and combining those percentages with the proportions of iron-free minerals not detected by Mössbauer (normative plagioclase, apatite, and chromite, as calculated from Alpha Particle X-Ray Spectrometer (APXS) chemical analyses). Comparisons of synthetic thermal emission spectra calculated for these mineral modes with measured Miniature Thermal Emission Spectrometer (Mini-TES) spectra for the same rock classes show either good agreements or discrepancies that we attribute to sodic plagioclase compositions or unmodeled sulfate, glass, or pigeonite. The normative compositions of olivine, pyroxene, and feldspar calculated from APXS data are consistent with spectroscopic constraints on mineral compositions. Systematic variations between olivine abundances in APXS norms (which sample tens of micrometers depth) and olivine proportions measured by Mössbauer (which sample hundreds of micrometers depth) support the hypothesis that dissolution of olivine by acidic fluids has occurred on weathered rock surfaces.en_UK
dc.publisherAmerican Geophysical Unionen_UK
dc.relationMcSween HY, Ruff SW, Morris RV, Gellert R, Klingelhoefer G, Christensen PR, McCoy TJ, Ghosh A, Moersch JM, Cohen BA, Rogers AD, Schröder C, Squyres SW, Crisp JA & Yen AS (2008) Mineralogy of volcanic rocks in Gusev Crater, Mars: Reconciling Mössbauer, Alpha Particle X-ray Spectrometer, and Miniature Thermal Emission Spectrometer spectra. Journal of Geophysical Research: Planets, 113 (E6), Art. No.: E06S04.
dc.rightsCopyright 2008 by the American Geophysical Union. AGU allows authors to deposit their journal articles if the version is the final published citable version of record, the AGU copyright statement is clearly visible on the posting, and the posting is made 6 months after official publication by the AGU.en_UK
dc.subjectGusev Crateren_UK
dc.titleMineralogy of volcanic rocks in Gusev Crater, Mars: Reconciling Mössbauer, Alpha Particle X-ray Spectrometer, and Miniature Thermal Emission Spectrometer spectraen_UK
dc.typeJournal Articleen_UK
dc.citation.jtitleJournal of Geophysical Research: Planetsen_UK
dc.type.statusVoR - Version of Recorden_UK
dc.contributor.affiliationUniversity of Tennesseeen_UK
dc.contributor.affiliationArizona State Universityen_UK
dc.contributor.affiliationNational Aeronautics and Space Administration (NASA)en_UK
dc.contributor.affiliationUniversity of Guelphen_UK
dc.contributor.affiliationJohannes Gutenberg University of Mainzen_UK
dc.contributor.affiliationArizona State Universityen_UK
dc.contributor.affiliationUniversity of Tennesseeen_UK
dc.contributor.affiliationUniversity of Tennesseeen_UK
dc.contributor.affiliationNational Aeronautics and Space Administration (NASA)en_UK
dc.contributor.affiliationCalifornia Institute of Technologyen_UK
dc.contributor.affiliationBiological and Environmental Sciencesen_UK
dc.contributor.affiliationCornell Universityen_UK
dc.contributor.affiliationCalifornia Institute of Technologyen_UK
dc.contributor.affiliationCalifornia Institute of Technologyen_UK
rioxxterms.typeJournal Article/Reviewen_UK
local.rioxx.authorMcSween, Harry Y|en_UK
local.rioxx.authorRuff, Steven W|en_UK
local.rioxx.authorMorris, Richard Van|en_UK
local.rioxx.authorGellert, Ralf|en_UK
local.rioxx.authorKlingelhoefer, Goestar|en_UK
local.rioxx.authorChristensen, Philip R|en_UK
local.rioxx.authorMcCoy, Timothy J|en_UK
local.rioxx.authorGhosh, Amitabha|en_UK
local.rioxx.authorMoersch, Jeffrey M|en_UK
local.rioxx.authorCohen, Barbara A|en_UK
local.rioxx.authorRogers, A Deanne|en_UK
local.rioxx.authorSchröder, Christian|0000-0002-7935-6039en_UK
local.rioxx.authorSquyres, Steven W|en_UK
local.rioxx.authorCrisp, Joy A|en_UK
local.rioxx.authorYen, Albert S|en_UK
local.rioxx.projectInternal Project|University of Stirling|
Appears in Collections:Biological and Environmental Sciences Journal Articles

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