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dc.contributor.authorDias, Bruna B
dc.contributor.authorPiotrowski, Alexander
dc.contributor.authorBarbosa, Cátia F
dc.contributor.authorVenancio, Igor M
dc.contributor.authorChiessi, Cristiano M
dc.contributor.authorAlbuquerque, Ana Luiza S
dc.date.accessioned2022-01-05T16:31:35Z
dc.date.available2022-01-05T16:31:35Z
dc.date.issued2021-12-21
dc.date.submitted2021-08-18
dc.identifier.issn2045-2322
dc.identifier.others41598-021-03821-8
dc.identifier.other3821
dc.identifier.urihttps://www.repository.cam.ac.uk/handle/1810/332066
dc.descriptionFunder: Alexander von Humboldt Foundation
dc.descriptionFunder: Petrobras/CENPES Geochemistry Network
dc.descriptionFunder: National Petroleum Agency of Brazil
dc.description.abstractABSTRACT: Continental shelves have the potential to remove atmospheric carbon dioxide via the biological pump, burying it in seafloor sediments. The efficiency of marine carbon sequestration changes rapidly due to variations in biological productivity, organic carbon oxidation, and burial rate. Here we present a high temporal resolution record of marine carbon sequestration changes from a western South Atlantic shelf site sensitive to Brazil Current-driven upwelling. The comparison of biological records to rare earth element (REE) patterns from authigenic oxides shows a strong relationship between higher biological productivity and stronger particle reactive element cycling (i.e. REE cycling) during rapid climate change events. This is the first evidence that authigenic oxides archive past changes in upper ocean REE cycling by the exported organic carbon. In addition, our data suggest that Brazil Current-driven upwelling varies on millennial-scales and in time with continental precipitation anomalies as registered in Brazilian speleothems during the Holocene. This indicates an ocean-atmosphere control on the biological pump, most probably related to South American monsoon system variability.
dc.languageen
dc.publisherSpringer Science and Business Media LLC
dc.subjectArticle
dc.subject/704/47/4113
dc.subject/704/47/4112
dc.subject/704/106/2738
dc.subject/704/106/413
dc.subjectarticle
dc.titleCoupled changes in western South Atlantic carbon sequestration and particle reactive element cycling during millennial-scale Holocene climate variability.
dc.typeArticle
dc.date.updated2022-01-05T16:31:35Z
prism.issueIdentifier1
prism.publicationNameSci Rep
prism.volume11
dc.identifier.doi10.17863/CAM.79513
dcterms.dateAccepted2021-11-29
rioxxterms.versionofrecord10.1038/s41598-021-03821-8
rioxxterms.versionVoR
rioxxterms.licenseref.urihttp://creativecommons.org/licenses/by/4.0/
dc.identifier.eissn2045-2322
pubs.funder-project-idCoordenação de Aperfeiçoamento de Pessoal de Nível Superior (88887.156152/2017-00, 88881.313535/2019-01)
pubs.funder-project-idFundação de Amparo à Pesquisa do Estado de São Paulo (20/11452-3, 18/15123-4)
pubs.funder-project-idConselho Nacional de Desenvolvimento Científico e Tecnológico (312458/2020-7, 302521-2017-8)
cam.issuedOnline2021-12-21


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