Recurrent photic zone euxinia limited ocean oxygenation and animal evolution during the Ediacaran

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dc.contributor.authorZheng, Wangen
dc.contributor.authorZhou, Anwenen
dc.contributor.authorSahoo, Swapan K.en
dc.contributor.authorNolan, Morrison R.en
dc.contributor.authorOstrander, Chadlin M.en
dc.contributor.authorSun, Ruoyuen
dc.contributor.authorAnbar, Ariel D.en
dc.contributor.authorXiao, Shuhaien
dc.contributor.authorChen, Jiubinen
dc.date.accessioned2024-02-13T15:46:36Zen
dc.date.available2024-02-13T15:46:36Zen
dc.date.issued2023-07-03en
dc.description.abstractThe Ediacaran Period (~635–539 Ma) is marked by the emergence and diversification of complex metazoans linked to ocean redox changes, but the processes and mechanism of the redox evolution in the Ediacaran ocean are intensely debated. Here we use mercury isotope compositions from multiple black shale sections of the Doushantuo Formation in South China to reconstruct Ediacaran oceanic redox conditions. Mercury isotopes show compelling evidence for recurrent and spatially dynamic photic zone euxinia (PZE) on the continental margin of South China during time intervals coincident with previously identified ocean oxygenation events. We suggest that PZE was driven by increased availability of sulfate and nutrients from a transiently oxygenated ocean, but PZE may have also initiated negative feedbacks that inhibited oxygen production by promoting anoxygenic photosynthesis and limiting the habitable space for eukaryotes, hence abating the long-term rise of oxygen and restricting the Ediacaran expansion of macroscopic oxygen-demanding animals.en
dc.description.versionPublished versionen
dc.format.extent12 page(s)en
dc.format.mimetypeapplication/pdfen
dc.identifierARTN 3920 (Article number)en
dc.identifier.doihttps://doi.org/10.1038/s41467-023-39427-zen
dc.identifier.eissn2041-1723en
dc.identifier.issn2041-1723en
dc.identifier.issue1en
dc.identifier.orcidXiao, Shuhai [0000-0003-4655-2663]en
dc.identifier.other10.1038/s41467-023-39427-z (PII)en
dc.identifier.pmid37400445en
dc.identifier.urihttps://hdl.handle.net/10919/117980en
dc.identifier.volume14en
dc.language.isoenen
dc.publisherNature Portfolioen
dc.relation.urihttps://www.ncbi.nlm.nih.gov/pubmed/37400445en
dc.rightsCreative Commons Attribution 4.0 Internationalen
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/en
dc.subjectNeoproterozoic Doushantuo Formationen
dc.subjectIsotopic Compositionen
dc.subjectMercury Isotopesen
dc.subjectSouth Chinaen
dc.subjectEarthen
dc.subjectPhotosynthesisen
dc.subjectCoevolutionen
dc.subjectRadiationen
dc.subjectOxidationen
dc.subjectEventsen
dc.subject.meshAnimalsen
dc.subject.meshOxygenen
dc.subject.meshSeawateren
dc.subject.meshGeologic Sedimentsen
dc.subject.meshFossilsen
dc.subject.meshOceans and Seasen
dc.subject.meshBiological Evolutionen
dc.titleRecurrent photic zone euxinia limited ocean oxygenation and animal evolution during the Ediacaranen
dc.title.serialNature Communicationsen
dc.typeArticle - Refereeden
dc.type.dcmitypeTexten
dc.type.otherArticleen
dc.type.otherJournalen
dcterms.dateAccepted2023-06-12en
pubs.organisational-group/Virginia Techen
pubs.organisational-group/Virginia Tech/Scienceen
pubs.organisational-group/Virginia Tech/Science/Geosciencesen
pubs.organisational-group/Virginia Tech/All T&R Facultyen
pubs.organisational-group/Virginia Tech/Science/COS T&R Facultyen

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