Please use this identifier to cite or link to this item: http://hdl.handle.net/1893/17112
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dc.contributor.authorTosca, Nicholas Jen_UK
dc.contributor.authorMcLennan, Scott Men_UK
dc.contributor.authorClark, Benton Cen_UK
dc.contributor.authorGrotzinger, Johnen_UK
dc.contributor.authorHurowitz, Joel Aen_UK
dc.contributor.authorKnoll, Andrew Hen_UK
dc.contributor.authorSchröder, Christianen_UK
dc.contributor.authorSquyres, Steven Wen_UK
dc.date.accessioned2013-10-25T23:24:02Z-
dc.date.available2013-10-25T23:24:02Zen_UK
dc.date.issued2005-11-30en_UK
dc.identifier.urihttp://hdl.handle.net/1893/17112-
dc.description.abstractNew data returned from the Mars Exploration Rover (MER) mission have revealed abundant evaporites in the sedimentary record at Meridiani Planum. A working hypothesis for Meridiani evaporite formation involves the evaporation of fluids derived from the weathering of martian basalt and subsequent diagenesis. On Earth, evaporite formation in exclusively basaltic settings is rare. However, models of the evaporation of fluids derived from experimentally weathering synthetic martian basalt provide insight into possible formation mechanisms. The thermodynamic database assembled for this investigation includes both Fe2+ and Fe3+ in Pitzer’s ion interaction equations to evaluate Fe redox disequilibrium at Meridiani Planum. Modeling results suggest that evaporation of acidic fluids derived from weathering olivine-bearing basalt should produce Mg, Ca, and Fe-sulfates such as jarosite and melanterite. Calculations that model diagenesis by fluid recharge predict the eventual breakdown of jarosite to goethite as well as the preservation of much of the initial soluble evaporite component at modeled porosity values appropriate for relevant depositional environments (b0.30). While only one of several possible formation scenarios, this simple model is consistent with much of the chemical and mineralogical data obtained on Meridiani Planum outcrop.en_UK
dc.language.isoenen_UK
dc.publisherElsevieren_UK
dc.relationTosca NJ, McLennan SM, Clark BC, Grotzinger J, Hurowitz JA, Knoll AH, Schröder C & Squyres SW (2005) Geochemical modeling of evaporation processes on Mars: Insight from the sedimentary record at Meridiani Planum. Earth and Planetary Science Letters, 240 (1), pp. 122-148. https://doi.org/10.1016/j.epsl.2005.09.042en_UK
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.rights.urihttp://www.rioxx.net/licenses/under-embargo-all-rights-reserveden_UK
dc.subjectMarsen_UK
dc.subjectMars exploration roversen_UK
dc.subjectgeochemistryen_UK
dc.subjectevaporitesen_UK
dc.subjectweatheringen_UK
dc.subjectsulfatesen_UK
dc.titleGeochemical modeling of evaporation processes on Mars: Insight from the sedimentary record at Meridiani Planumen_UK
dc.typeJournal Articleen_UK
dc.rights.embargodate2999-12-31en_UK
dc.rights.embargoreason[Tosca2005_geochemical_modeling_of_evaporation_processes_on_mars.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.identifier.doi10.1016/j.epsl.2005.09.042en_UK
dc.citation.jtitleEarth and Planetary Science Lettersen_UK
dc.citation.issn0012-821Xen_UK
dc.citation.volume240en_UK
dc.citation.issue1en_UK
dc.citation.spage122en_UK
dc.citation.epage148en_UK
dc.citation.publicationstatusPublisheden_UK
dc.citation.peerreviewedRefereeden_UK
dc.type.statusVoR - Version of Recorden_UK
dc.author.emailchristian.schroeder@stir.ac.uken_UK
dc.contributor.affiliationState University of New York At Stony Brooken_UK
dc.contributor.affiliationState University of New York At Stony Brooken_UK
dc.contributor.affiliationLockheed Martin Corporationen_UK
dc.contributor.affiliationMassachusetts Institute of Technologyen_UK
dc.contributor.affiliationState University of New York At Stony Brooken_UK
dc.contributor.affiliationHarvard Universityen_UK
dc.contributor.affiliationBiological and Environmental Sciencesen_UK
dc.contributor.affiliationCornell Universityen_UK
dc.identifier.isiWOS:000233717900005en_UK
dc.identifier.scopusid2-s2.0-27944487149en_UK
dc.identifier.wtid683358en_UK
dc.contributor.orcid0000-0002-7935-6039en_UK
dcterms.dateAccepted2005-11-30en_UK
dc.date.filedepositdate2013-10-24en_UK
rioxxterms.typeJournal Article/Reviewen_UK
rioxxterms.versionVoRen_UK
local.rioxx.authorTosca, Nicholas J|en_UK
local.rioxx.authorMcLennan, Scott M|en_UK
local.rioxx.authorClark, Benton C|en_UK
local.rioxx.authorGrotzinger, John|en_UK
local.rioxx.authorHurowitz, Joel A|en_UK
local.rioxx.authorKnoll, Andrew H|en_UK
local.rioxx.authorSchröder, Christian|0000-0002-7935-6039en_UK
local.rioxx.authorSquyres, Steven W|en_UK
local.rioxx.projectInternal Project|University of Stirling|https://isni.org/isni/0000000122484331en_UK
local.rioxx.freetoreaddate2999-12-31en_UK
local.rioxx.licencehttp://www.rioxx.net/licenses/under-embargo-all-rights-reserved||en_UK
local.rioxx.filenameTosca2005_geochemical_modeling_of_evaporation_processes_on_mars.pdfen_UK
local.rioxx.filecount1en_UK
local.rioxx.source0012-821Xen_UK
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