Holocene paleoceanography of the Bay of Biscay: Evidence for west-east linkages in the North Atlantic based on dinocyst data
| dc.rights.license | open | en_US |
| dc.contributor.author | ZUMAQUE, Jena | |
| hal.structure.identifier | Environnements et Paléoenvironnements OCéaniques [EPOC] | |
| dc.contributor.author | EYNAUD, Frederique
IDREF: 144113570 | |
| dc.contributor.author | DE VERNAL, Anne | |
| dc.date.accessioned | 2024-10-07T12:45:21Z | |
| dc.date.available | 2024-10-07T12:45:21Z | |
| dc.date.issued | 2017-02-01 | |
| dc.identifier.issn | 0031-0182 | en_US |
| dc.identifier.uri | oai:crossref.org:10.1016/j.palaeo.2016.12.031 | |
| dc.identifier.uri | https://oskar-bordeaux.fr/handle/20.500.12278/202294 | |
| dc.description.abstractEn | Paleoceanographical changes during the Holocene were reconstructed from the study of core MD95-2002 situated in the northern Bay of Biscay, which is marked by the direct influence of the northeastern return branch of the North Atlantic Drift. Palynological data, sea-surface condition estimates based on dinocyst assemblages and stable isotope measurements in planktic and benthic foraminifera reveal a strong influence of freshwater/meltwaters from both the proximal European sources and the more distal Laurentide Ice Sheet, which experienced delayed deglaciation. The data also indicate the setting of a climate optimum between 7 and 5.5 ka followed by a cooling trend, which is consistent with insolation changes and other regional records of climate changes. Superimposed on the long term trends, the reconstructions of sea-surface conditions evidence large amplitude changes at centennial to millennial time-scales, with seven episodes of cooling and low salinity since 11 ka that generally match episodes of dense sea-ice cover in the Labrador Sea. The west to east transfer of the sea-ice and/or meltwater signal across the North Atlantic evidenced from core MD95-2002 points to strong linkages between western and eastern North Atlantic, probably in relation to the North Atlantic Oscillation (NAO) mode of variability. | |
| dc.language.iso | EN | en_US |
| dc.source | crossref | |
| dc.title.en | Holocene paleoceanography of the Bay of Biscay: Evidence for west-east linkages in the North Atlantic based on dinocyst data | |
| dc.type | Article de revue | en_US |
| dc.identifier.doi | 10.1016/j.palaeo.2016.12.031 | en_US |
| dc.subject.hal | Sciences de l'environnement | en_US |
| bordeaux.journal | Palaeogeography, Palaeoclimatology, Palaeoecology | en_US |
| bordeaux.page | 403-413 | en_US |
| bordeaux.volume | 468 | en_US |
| bordeaux.hal.laboratories | EPOC : Environnements et Paléoenvironnements Océaniques et Continentaux - UMR 5805 | en_US |
| bordeaux.institution | Université de Bordeaux | en_US |
| bordeaux.institution | CNRS | en_US |
| bordeaux.team | PALEO | en_US |
| bordeaux.peerReviewed | oui | en_US |
| bordeaux.inpress | non | en_US |
| bordeaux.import.source | dissemin | |
| hal.identifier | hal-04724080 | |
| hal.version | 1 | |
| hal.date.transferred | 2024-10-07T12:45:23Z | |
| hal.popular | non | en_US |
| hal.audience | Internationale | en_US |
| hal.export | true | |
| workflow.import.source | dissemin | |
| dc.rights.cc | Pas de Licence CC | en_US |
| bordeaux.COinS | ctx_ver=Z39.88-2004&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.jtitle=Palaeogeography,%20Palaeoclimatology,%20Palaeoecology&rft.date=2017-02-01&rft.volume=468&rft.spage=403-413&rft.epage=403-413&rft.eissn=0031-0182&rft.issn=0031-0182&rft.au=ZUMAQUE,%20Jena&EYNAUD,%20Frederique&DE%20VERNAL,%20Anne&rft.genre=article |
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