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dc.contributor.authorWatanabe, Sayaka
dc.contributor.authorJanssen, NMM
dc.contributor.authorMartinez, M
dc.contributor.authorCompany, M
dc.contributor.authorVandevelde, JH
dc.contributor.authorGrimes, Stephen
dc.date.accessioned2018-10-01T11:01:55Z
dc.date.issued2018-10
dc.identifier.issn1525-2027
dc.identifier.issn1525-2027
dc.identifier.urihttp://hdl.handle.net/10026.1/12437
dc.description.abstract

<jats:title>Abstract</jats:title><jats:p>The Early Cretaceous Weissert event, characterized by a positive carbon isotope excursion and coincident with the Paraná‐Etendeka volcanism, saw a biogeochemical chain of events that ultimately led to an increase in carbon burial. A conclusive link between the Paraná‐Etendeka volcanism and its impact upon the environment remains, however, elusive. Here we reconstruct temperature through the Weissert event from Mg/Ca ratios of belemnites from the Vocontian Trough (France) and SE Spain and use carbon isotopes to link our temperature reconstruction to marine records of carbon cycling. We provide evidence that the Paraná‐Etendeka volcanism, unlike some large igneous provinces, did not cause a climate warming. The case can be made for cooling in the last stages of the Weissert event, which possibly reflects substantial CO<jats:sub>2</jats:sub> drawdown. In the absence of warming and consequent accelerated hydrological cycling and the relatively long duration of the eruptive phase of the Paraná‐Etendeka, an alternate trigger for increased fertilization of the oceans is implicated.</jats:p>

dc.format.extent3832-3843
dc.languageen
dc.language.isoen
dc.publisherAmerican Geophysical Union
dc.subjectCretaceous
dc.subjectpaleotemperature
dc.subjectValanginian
dc.subjectWeissert event
dc.subjectParana-Etendeka volcanism
dc.subjectcarbon
dc.titleA high-resolution belemnite geochemical analysis of Early Cretaceous (Valanginian-Hauterivian) environmental and climatic perturbations
dc.typejournal-article
dc.typeJournal Article
plymouth.author-urlhttps://www.webofscience.com/api/gateway?GWVersion=2&SrcApp=PARTNER_APP&SrcAuth=LinksAMR&KeyUT=WOS:000450640800013&DestLinkType=FullRecord&DestApp=ALL_WOS&UsrCustomerID=11bb513d99f797142bcfeffcc58ea008
plymouth.issue10
plymouth.volume19
plymouth.publication-statusPublished
plymouth.journalGeochemistry, Geophysics, Geosystems
dc.identifier.doi10.1029/2018GC007676
plymouth.organisational-group/Plymouth
plymouth.organisational-group/Plymouth/Faculty of Science and Engineering
plymouth.organisational-group/Plymouth/Faculty of Science and Engineering/School of Geography, Earth and Environmental Sciences
plymouth.organisational-group/Plymouth/REF 2021 Researchers by UoA
plymouth.organisational-group/Plymouth/REF 2021 Researchers by UoA/UoA07 Earth Systems and Environmental Sciences
plymouth.organisational-group/Plymouth/Research Groups
plymouth.organisational-group/Plymouth/Research Groups/Marine Institute
plymouth.organisational-group/Plymouth/Users by role
plymouth.organisational-group/Plymouth/Users by role/Academics
plymouth.organisational-group/Plymouth/Users by role/Researchers in ResearchFish submission
dcterms.dateAccepted2018-09-30
dc.rights.embargodate2019-12-17
dc.identifier.eissn1525-2027
dc.rights.embargoperiodNot known
rioxxterms.versionofrecord10.1029/2018GC007676
rioxxterms.licenseref.urihttp://www.rioxx.net/licenses/all-rights-reserved
rioxxterms.licenseref.startdate2018-10
rioxxterms.typeJournal Article/Review
plymouth.funderCarbonate clumped-isotopic constraints on marine temperatures during the Cretaceous::NERC


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