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dc.contributor.authorZerkle, Aubrey Lea
dc.contributor.authorYin, Runsheng
dc.contributor.authorChen, Chaoyue
dc.contributor.authorLi, Xiangdong
dc.contributor.authorIzon, Gareth
dc.contributor.authorGrasby, Stephen
dc.identifier.citationZerkle , A L , Yin , R , Chen , C , Li , X , Izon , G & Grasby , S 2020 , ' Anomalous fractionation of mercury isotopes in the Late Archean atmosphere ' , Nature Communications , vol. 11 , 1709 .
dc.identifier.otherPURE: 266864599
dc.identifier.otherPURE UUID: bdf75d08-020a-460a-b655-8ca398cc99fa
dc.identifier.otherORCID: /0000-0003-2324-1619/work/71955673
dc.identifier.otherScopus: 85083022494
dc.identifier.otherWOS: 000564279900001
dc.descriptionThis work was funded by a Natural Environment Research Council (NERC) Fellowship NE/H016805/2 and Standard Grant NE/J023485/2 (to A.L.Z.). R.Y. was funded by the Chinese Academy of Sciences through the Hundred Talent Plan. G.J.I. recognizes continued support from R. Summons under the auspices of the Simons Collaboration on the Origin of Life. We thank J. Kirschvink, J. Grotzinger, A. Knoll, and the Agouron Institute for organizing and funding the Agouron Drilling Project, and the Council for Geoscience in South Africa, specifically those at the National Core Library in Donkerhoek, for facilitating access to the core materials.en
dc.description.abstractEarth’s surface underwent a dramatic transition ~2.3 billion years ago when atmospheric oxygen first accumulated during the Great Oxidation Event, but the detailed composition of the reducing early atmosphere is not well known. Here we develop mercury (Hg) stable isotopes as a proxy for paleoatmospheric chemistry and use Hg isotope data from 2.5 billion-year-old sedimentary rocks to examine changes in the Late Archean atmosphere immediately prior to the Great Oxidation Event. These sediments preserve evidence of strong photochemical transformations of mercury in the absence of molecular oxygen. In addition, these geochemical records combined with previously published multi-proxy data support a vital role for methane in Earth’s early atmosphere.
dc.relation.ispartofNature Communicationsen
dc.rightsCopyright © The Author(s) 2020. Open Access This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made. The images or other third party material in this article are included in the article’s Creative Commons license, unless indicated otherwise in a credit line to the material. If material is not included in the article’s Creative Commons license and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this license, visit
dc.subjectGE Environmental Sciencesen
dc.titleAnomalous fractionation of mercury isotopes in the Late Archean atmosphereen
dc.typeJournal articleen
dc.description.versionPublisher PDFen
dc.contributor.institutionUniversity of St Andrews.School of Earth & Environmental Sciencesen
dc.contributor.institutionUniversity of St Andrews.St Andrews Centre for Exoplanet Scienceen
dc.contributor.institutionUniversity of St Andrews.St Andrews Isotope Geochemistryen
dc.description.statusPeer revieweden

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