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dc.contributor.authorJunium, Christopher K.
dc.contributor.authorBeukes, Nicolas J.
dc.contributor.authorAlgeo, Thomas J.
dc.contributor.authorCui, Ying
dc.contributor.authorXie, Shucheng
dc.contributor.authorLuo, Genming
dc.contributor.authorIzon, Gareth
dc.contributor.authorOno, Shuhei
dc.contributor.authorSummons, Roger E
dc.date.accessioned2018-05-09T19:29:59Z
dc.date.available2018-05-09T19:29:59Z
dc.date.issued2018-03
dc.date.submitted2016-11
dc.identifier.issn2041-1723
dc.identifier.urihttp://hdl.handle.net/1721.1/115273
dc.description.abstractThe marine nitrogen cycle is dominated by redox-controlled biogeochemical processes and, therefore, is likely to have been revolutionised in response to Earth-surface oxygenation. The details, timing, and trajectory of nitrogen cycle evolution, however, remain elusive. Here we couple nitrogen and carbon isotope records from multiple drillcores through the Rooihoogte-Timeball Hill Formations from across the Carletonville area of the Kaapvaal Craton where the Great Oxygenation Event (GOE) and its aftermath are recorded. Our data reveal that aerobic nitrogen cycling, featuring metabolisms involving nitrogen oxyanions, was well established prior to the GOE and that ammonium may have dominated the dissolved nitrogen inventory. Pronounced signals of diazotrophy imply a stepwise evolution, with a temporary intermediate stage where both ammonium and nitrate may have been scarce. We suggest that the emergence of the modern nitrogen cycle, with metabolic processes that approximate their contemporary balance, was retarded by low environmental oxygen availability.en_US
dc.description.sponsorshipNational Science Foundation (U.S.) (Grant EAR-1338810)en_US
dc.description.sponsorshipNational Science Foundation (U.S.) (Grant EAR-1455258)en_US
dc.publisherNature Publishing Groupen_US
dc.relation.isversionofhttp://dx.doi.org/10.1038/s41467-018-03361-2en_US
dc.rightsAttribution 4.0 International (CC BY 4.0)en_US
dc.rights.urihttps://creativecommons.org/licenses/by/4.0/en_US
dc.sourceNature Communicationsen_US
dc.titleNitrogen fixation sustained productivity in the wake of the Palaeoproterozoic Great Oxygenation Eventen_US
dc.typeArticleen_US
dc.identifier.citationLuo, Genming et al. “Nitrogen Fixation Sustained Productivity in the Wake of the Palaeoproterozoic Great Oxygenation Event.” Nature Communications 9, 1 (March 2018): 978 © 2018 The Authorsen_US
dc.contributor.departmentMassachusetts Institute of Technology. Department of Earth, Atmospheric, and Planetary Sciencesen_US
dc.contributor.mitauthorLuo, Genming
dc.contributor.mitauthorIzon, Gareth
dc.contributor.mitauthorOno, Shuhei
dc.contributor.mitauthorSummons, Roger E
dc.relation.journalNature Communicationsen_US
dc.eprint.versionFinal published versionen_US
dc.type.urihttp://purl.org/eprint/type/JournalArticleen_US
eprint.statushttp://purl.org/eprint/status/PeerRevieweden_US
dc.date.updated2018-05-04T13:17:03Z
dspace.orderedauthorsLuo, Genming; Junium, Christopher K.; Izon, Gareth; Ono, Shuhei; Beukes, Nicolas J.; Algeo, Thomas J.; Cui, Ying; Xie, Shucheng; Summons, Roger E.en_US
dspace.embargo.termsNen_US
dc.identifier.orcidhttps://orcid.org/0000-0002-7380-3707
dc.identifier.orcidhttps://orcid.org/0000-0002-1348-9584
dc.identifier.orcidhttps://orcid.org/0000-0002-7144-8537
mit.licensePUBLISHER_CCen_US


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