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dc.contributor.authorStueeken, Eva E.
dc.contributor.authorKipp, Michael A.
dc.contributor.editorLyons, Timothy
dc.contributor.editorTurchyn, Alexandra
dc.contributor.editorReinhard, Chris
dc.date.accessioned2021-03-01T00:37:34Z
dc.date.available2021-03-01T00:37:34Z
dc.date.issued2020-09-01
dc.identifier270188527
dc.identifieracc9286a-9bb0-401d-82c0-a92f76601ffc
dc.identifier.citationStueeken , E E & Kipp , M A 2020 , Selenium isotope paleobiogeochemistry . in T Lyons , A Turchyn & C Reinhard (eds) , Elements in geochemical tracers in earth system science . Cambridge elements , Cambridge University Press , Cambridge , pp. 1-21 . https://doi.org/10.1017/9781108782203en
dc.identifier.isbn9781108749169
dc.identifier.isbn9781108782203
dc.identifier.issn2515-6454
dc.identifier.otherORCID: /0000-0001-6861-2490/work/80620705
dc.identifier.urihttps://hdl.handle.net/10023/21527
dc.description.abstractThe attraction of selenium isotopes as a paleoenvironmental tracer lies in the high redox potential of selenium oxyanions (SeIV and SeVI), the two dominant species in the modern ocean. The largest isotopic fractionations occur during oxyanion reduction, which makes selenium isotopes a sensitive proxy for the redox evolution of our planet. As a case study we review existing data from the Neoarchean and Paleoproterozoic, which show that significant isotopic fractionations are absent until 2.5 Ga, and prolonged isotopic deviations only appear around 2.3 Ga. Selenium isotopes have thus begun to reveal complex spatiotemporal redox patterns not reflected in other proxies.
dc.format.extent1477603
dc.language.isoeng
dc.publisherCambridge University Press
dc.relation.ispartofElements in geochemical tracers in earth system scienceen
dc.relation.ispartofseriesCambridge elementsen
dc.subjectSelenium isotopesen
dc.subjectRedox proxyen
dc.subjectEarth evolutionen
dc.subjectGE Environmental Sciencesen
dc.subject.lccGEen
dc.titleSelenium isotope paleobiogeochemistryen
dc.typeBook itemen
dc.contributor.institutionUniversity of St Andrews. School of Earth & Environmental Sciencesen
dc.contributor.institutionUniversity of St Andrews. St Andrews Centre for Exoplanet Scienceen
dc.identifier.doi10.1017/9781108782203
dc.date.embargoedUntil2021-03-01
dc.identifier.urlhttps://www.cambridge.org/core/what-we-publish/elements/geochemical-tracers-in-earth-system-scienceen


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