Multiproxy paleoceanographic study from the western Barents Sea reveals dramatic Younger Dryas onset followed by oscillatory warming trend

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dc.contributor.authorŁącka, Magdalena
dc.contributor.authorMichalska, Danuta
dc.contributor.authorPawłowska, Joanna
dc.contributor.authorSzymańska, Natalia
dc.contributor.authorSzczuciński, Witold
dc.contributor.authorForwick, Matthias
dc.contributor.authorZajączkowski, Marek
dc.date.accessioned2020-09-27T13:50:46Z
dc.date.available2020-09-27T13:50:46Z
dc.date.issued2020-09
dc.description.abstractThe Younger Dryas (YD) is recognized as a cool period that began and ended abruptly during a time of general warming at the end of the last glacial. New multi-proxy data from a sediment gravity core from Storfjordrenna (western Barents Sea, 253 m water depth) reveals that the onset of the YD occurred as a single short-lived dramatic environment deterioration, whereas the subsequent warming was oscillatory. The water masses in the western Barents Sea were likely strongly stratified at the onset of the YD, possibly due to runoff of meltwater combined with perennial sea-ice cover, the latter may last up to several decades without any brake-up. Consequently, anoxic conditions prevailed at the bottom of Storfjordrenna, leading to a sharp reduction of benthic biota and the appearance of vivianite microconcretions which formation is favoured by reducing conditions. While the anoxic conditions in Storfjordrenna were transient, the unfavorable conditions for benthic foraminifera lasted for c. 1300 years. We suggest that the Pre-Boreal Oscillation, just after the onset of the Holocene, may have been a continuation of the oscillatory warming trend during the YD.pl
dc.description.sponsorshipNarodowe Centrum Nauki granty: 2016/21/B/ST10/02308, 2019/33/B/ST10/00297, 2013/10/E/ST10/00166pl
dc.identifier.citationScientific Reports 10:15667, (2020), doi: 10.1038/s41598-020-72747-4pl
dc.identifier.urihttp://hdl.handle.net/10593/25797
dc.language.isoengpl
dc.publisherSpringer Naturepl
dc.rightsinfo:eu-repo/semantics/openAccesspl
dc.rights.uriAn error occurred getting the license - uri.*
dc.subjectclimate changepl
dc.subjectpaleoceanographypl
dc.subjectBarents Seapl
dc.subjectSvalbardpl
dc.subjectYounger Dryaspl
dc.subjectStorfjordrennapl
dc.subjectvivianitepl
dc.subjectmarine sedimentspl
dc.subjectpolar researchpl
dc.subjectmarine geologypl
dc.subjectsedimentologypl
dc.subjectsea icepl
dc.subject14Cpl
dc.subjectforaminiferapl
dc.subjectmineralogypl
dc.subjectgeochemistrypl
dc.subjectoceanic circulationpl
dc.subjectanoxiapl
dc.titleMultiproxy paleoceanographic study from the western Barents Sea reveals dramatic Younger Dryas onset followed by oscillatory warming trendpl
dc.typeArtykułpl

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