Please use this identifier to cite or link to this item: http://hdl.handle.net/1893/16872
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dc.contributor.authorPosth, Nicole Ren_UK
dc.contributor.authorKohler, Ingaen_UK
dc.contributor.authorSwanner, Elizabeth Den_UK
dc.contributor.authorSchröder, Christianen_UK
dc.contributor.authorWellmann, Evaen_UK
dc.contributor.authorBinder, Bernden_UK
dc.contributor.authorKonhauser, Kurt Oen_UK
dc.contributor.authorNeumann, Udoen_UK
dc.contributor.authorBerthold, Christophen_UK
dc.contributor.authorNowak, Marcusen_UK
dc.contributor.authorKappler, Andreasen_UK
dc.date.accessioned2018-03-03T01:37:47Z-
dc.date.available2018-03-03T01:37:47Zen_UK
dc.date.issued2013-12en_UK
dc.identifier.urihttp://hdl.handle.net/1893/16872-
dc.description.abstractPost-depositional diagenetic alteration makes the accurate interpretation of key precipitation processes in ancient sediments, such as Precambrian banded iron formations (BIFs), difficult. While microorganisms are proposed as key contributors to BIF deposition, the diagenetic transformation of precursor Fe(III) minerals associated with microbial biomass had not been experimentally tested. We incubated mixtures of ferrihydrite (proxy for biogenic ferric oxyhydroxide minerals) and glucose (proxy for microbial biomass) in gold capsules at 1.2 kbar and 170°C. Both wet chemical analysis and mineralogical methods (microscopy, X-ray diffraction and Mössbauer spectroscopy) were used to analyze the reaction products. Under these conditions, ferrihydrite (FeIII(OH)3) transforms to hematite (Fe2IIIO3), magnetite (FeIIFe2IIIO4), and siderite (FeIICO3). Silica-coated ferrihydrite prepared at conservative Si:Fe ratios (as predicted for the Precambrian oceans) and mixed with glucose yielded hematite and siderite, whereas magnetite could not be identified microscopically. Our results show that electron transfer from organic carbon to Fe(III) minerals during temperature/pressure diagenesis can drive the production of key BIF minerals. Our results also demonstrate that the post-depositional mineralogy of BIF does not directly archive the oceanic or atmospheric conditions present on Earth during their lithification. As a consequence, atmospheric composition regarding concentrations of methane and CO2 during the time of BIF mineral deposition cannot be directly inferred from BIF mineralogical data alone.en_UK
dc.language.isoenen_UK
dc.publisherElsevieren_UK
dc.relationPosth NR, Kohler I, Swanner ED, Schröder C, Wellmann E, Binder B, Konhauser KO, Neumann U, Berthold C, Nowak M & Kappler A (2013) Simulating Precambrian banded iron formation diagenesis. Chemical Geology, 362, pp. 66-73. https://doi.org/10.1016/j.chemgeo.2013.05.031en_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.subjectMineral diagenesisen_UK
dc.subjectMineral transformationsen_UK
dc.subjectBanded iron formationsen_UK
dc.subjectAnoxygenic phototrophsen_UK
dc.subjectBiogenic mineralsen_UK
dc.titleSimulating Precambrian banded iron formation diagenesisen_UK
dc.typeJournal Articleen_UK
dc.rights.embargodate3000-01-01en_UK
dc.rights.embargoreason[Posth2013_simulating_precambrian_banded_iron_formation_diagenesis.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.chemgeo.2013.05.031en_UK
dc.citation.jtitleChemical Geologyen_UK
dc.citation.issn0009-2541en_UK
dc.citation.volume362en_UK
dc.citation.spage66en_UK
dc.citation.epage73en_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.affiliationUniversity of Tuebingen (Eberhard Karls)en_UK
dc.contributor.affiliationUniversity of Tuebingen (Eberhard Karls)en_UK
dc.contributor.affiliationUniversity of Tuebingen (Eberhard Karls)en_UK
dc.contributor.affiliationBiological and Environmental Sciencesen_UK
dc.contributor.affiliationUniversity of Tuebingen (Eberhard Karls)en_UK
dc.contributor.affiliationUniversity of Tuebingen (Eberhard Karls)en_UK
dc.contributor.affiliationUniversity of Albertaen_UK
dc.contributor.affiliationUniversity of Tuebingen (Eberhard Karls)en_UK
dc.contributor.affiliationUniversity of Tuebingen (Eberhard Karls)en_UK
dc.contributor.affiliationUniversity of Tuebingen (Eberhard Karls)en_UK
dc.contributor.affiliationUniversity of Tuebingen (Eberhard Karls)en_UK
dc.identifier.isiWOS:000327764300008en_UK
dc.identifier.scopusid2-s2.0-84879049807en_UK
dc.identifier.wtid674296en_UK
dc.contributor.orcid0000-0002-7935-6039en_UK
dcterms.dateAccepted2013-12-31en_UK
dc.date.filedepositdate2013-10-07en_UK
rioxxterms.typeJournal Article/Reviewen_UK
rioxxterms.versionVoRen_UK
local.rioxx.authorPosth, Nicole R|en_UK
local.rioxx.authorKohler, Inga|en_UK
local.rioxx.authorSwanner, Elizabeth D|en_UK
local.rioxx.authorSchröder, Christian|0000-0002-7935-6039en_UK
local.rioxx.authorWellmann, Eva|en_UK
local.rioxx.authorBinder, Bernd|en_UK
local.rioxx.authorKonhauser, Kurt O|en_UK
local.rioxx.authorNeumann, Udo|en_UK
local.rioxx.authorBerthold, Christoph|en_UK
local.rioxx.authorNowak, Marcus|en_UK
local.rioxx.authorKappler, Andreas|en_UK
local.rioxx.projectInternal Project|University of Stirling|https://isni.org/isni/0000000122484331en_UK
local.rioxx.freetoreaddate3000-01-01en_UK
local.rioxx.licencehttp://www.rioxx.net/licenses/under-embargo-all-rights-reserved||en_UK
local.rioxx.filenamePosth2013_simulating_precambrian_banded_iron_formation_diagenesis.pdfen_UK
local.rioxx.filecount1en_UK
local.rioxx.source0009-2541en_UK
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