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dc.contributor.authorRobbins, Leslie J.
dc.contributor.authorLalonde, Stefan V.
dc.contributor.authorPlanavsky, Noah J.
dc.contributor.authorPartin, Camille A.
dc.contributor.authorReinhard, Christopher T.
dc.contributor.authorKendall, Brian
dc.contributor.authorScott, Clint
dc.contributor.authorHardisty, Dalton S.
dc.contributor.authorGill, Benjamin C.
dc.contributor.authorAlessi, Daniel S.
dc.contributor.authorDupont, Christoper L.
dc.contributor.authorSaito, Mak A.
dc.contributor.authorCrowe, Sean A.
dc.contributor.authorPoulton, Simon W.
dc.contributor.authorBekker, Andrey
dc.contributor.authorLyons, Timothy W.
dc.contributor.authorKonhauser, Kurt O. 19:50:36 (GMT) 19:50:36 (GMT)
dc.descriptionThe final publication is available at Elsevier via © 2016. This manuscript version is made available under the CC-BY-NC-ND 4.0 license
dc.description.abstractLife requires a wide variety of bioessential trace elements to act as structural components and reactive centers in metalloenzymes. These requirements differ between organisms and have evolved over geological time, likely guided in some part by environmental conditions. Until recently, most of what was understood regarding trace element concentrations in the Precambrian oceans was inferred by extrapolation, geochemical modeling, and/or genomic studies. However, in the past decade, the increasing availability of trace element and isotopic data for sedimentary rocks of all ages has yielded new, and potentially more direct, insights into secular changes in seawater composition – and ultimately the evolution of the marine biosphere. Compiled records of many bioessential trace elements (including Ni, Mo, P, Zn, Co, Cr, Se, and I) provide newinsight into howtrace element abundance in Earth's ancient oceansmay have been linked to biological evolution. Several of these trace elements display redox-sensitive behavior,while others are redox-sensitive but not bioessential (e.g., Cr, U). Their temporal trends in sedimentary archives provide useful constraints on changes in atmosphere-ocean redox conditions that are linked to biological evolution, for example, the activity of oxygen-producing, photosynthetic cyanobacteria. In this review, we summarize available Precambrian trace element proxy data, and discuss how temporal trends in the seawater concentrations of specific trace elements may be linked to the evolution of both simple and complex life. We also examine several biologically relevant and/or redox-sensitive trace elements that have yet to be fully examined in the sedimentary rock record (e.g., Cu, Cd, W) and suggest several directions for future studies.en
dc.description.sponsorshipVanier Canada Graduate Scholarship Natural Sciences and Engineering Research Council of Canada (NSERC) Discovery Grant National Aeronautics and Space Administration through the NASA Astrobiology Institute under Cooperative Agreement || No. NNA15BB03A NSF FESD (TWL) and ELT program Region of Brittany and LabexMERen
dc.rightsAttribution-NonCommercial-NoDerivatives 4.0 International
dc.subjectIron formationsen
dc.subjectBlack shalesen
dc.subjectTrace elementsen
dc.titleTrace elements at the intersection of marine biological and geochemical evolutionen
dcterms.bibliographicCitationRobbins L.J., Lalonde S.V., Planavsky N.J., Partin C.A., Reinhard C.T., Kendall B., Scott C., Hardisty D.S., Gill B.C., Alessi D.S., Dupont C.L., Saito M.A., Crowe S.A., Poulton S.W., Bekker A., Lyons T.W., Konhauser K.O., 2016. Trace elements at the intersection of marine biological and geochemical evolution. Earth-Science Reviews, v. 163, p. 323-348 [Invited review].en
uws.contributor.affiliation1Faculty of Scienceen
uws.contributor.affiliation2Earth and Environmental Sciencesen

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