Early Pliocene onset of modern Nordic Seas circulation related to ocean gateway changes
The globally warm climate of the early Pliocene gradually cooled from 4 million years ago, synchronous with decreasing atmospheric CO 2 concentrations. In contrast, palaeoceanographic records indicate that the Nordic Seas cooled during the earliest Pliocene, before global cooling. However, a lack of...
Published in: | Nature Communications |
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Language: | English |
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Online Access: | https://www.vliz.be/imisdocs/publications/280225.pdf |
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ftvliz:oai:oma.vliz.be:250906 2023-05-15T15:04:28+02:00 Early Pliocene onset of modern Nordic Seas circulation related to ocean gateway changes De Schepper, S. Schreck, M. Beck, K.M. Matthiessen, J. Fahl, K. Mangerud, G. 2015 application/pdf https://www.vliz.be/imisdocs/publications/280225.pdf en eng info:eu-repo/semantics/altIdentifier/wos/000364936200001 info:eu-repo/semantics/altIdentifier/doi/oi.org/10.1038/ncomms9659 https://www.vliz.be/imisdocs/publications/280225.pdf info:eu-repo/semantics/openAccess %3Ci%3ENature+Comm.+6%288659%29%3C%2Fi%3E%3A+8+pp.+%3Ca+href%3D%22http%3A%2F%2Fdx.doi.org%2F10.1038%2Fncomms9659%22+target%3D%22_blank%22%3Ehttp%3A%2F%2Fdx.doi.org%2F10.1038%2Fncomms9659%3C%2Fa%3E info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion 2015 ftvliz https://doi.org/10.1038/ncomms9659 2022-05-01T10:32:20Z The globally warm climate of the early Pliocene gradually cooled from 4 million years ago, synchronous with decreasing atmospheric CO 2 concentrations. In contrast, palaeoceanographic records indicate that the Nordic Seas cooled during the earliest Pliocene, before global cooling. However, a lack of knowledge regarding the precise timing of Nordic Seas cooling has limited our understanding of the governing mechanisms. Here, using marine palynology, we show that cooling in the Nordic Seas was coincident with the first trans-Arctic migration of cool-water Pacific mollusks around 4.5 million years ago, and followed by the development of a modern-like Nordic Seas surface circulation. Nordic Seas cooling precedes global cooling by 500,000 years; as such, we propose that reconfiguration of the Bering Strait and Central American Seaway triggered the development of a modern circulation in the Nordic Seas, which is essential for North Atlantic Deep Water formation and a precursor for more widespread Greenland glaciation in the late Pliocene. Article in Journal/Newspaper Arctic Bering Strait Greenland Nordic Seas North Atlantic Deep Water North Atlantic Flanders Marine Institute (VLIZ): Open Marine Archive (OMA) Arctic Bering Strait Greenland Pacific Nature Communications 6 1 |
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Open Polar |
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Flanders Marine Institute (VLIZ): Open Marine Archive (OMA) |
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ftvliz |
language |
English |
description |
The globally warm climate of the early Pliocene gradually cooled from 4 million years ago, synchronous with decreasing atmospheric CO 2 concentrations. In contrast, palaeoceanographic records indicate that the Nordic Seas cooled during the earliest Pliocene, before global cooling. However, a lack of knowledge regarding the precise timing of Nordic Seas cooling has limited our understanding of the governing mechanisms. Here, using marine palynology, we show that cooling in the Nordic Seas was coincident with the first trans-Arctic migration of cool-water Pacific mollusks around 4.5 million years ago, and followed by the development of a modern-like Nordic Seas surface circulation. Nordic Seas cooling precedes global cooling by 500,000 years; as such, we propose that reconfiguration of the Bering Strait and Central American Seaway triggered the development of a modern circulation in the Nordic Seas, which is essential for North Atlantic Deep Water formation and a precursor for more widespread Greenland glaciation in the late Pliocene. |
format |
Article in Journal/Newspaper |
author |
De Schepper, S. Schreck, M. Beck, K.M. Matthiessen, J. Fahl, K. Mangerud, G. |
spellingShingle |
De Schepper, S. Schreck, M. Beck, K.M. Matthiessen, J. Fahl, K. Mangerud, G. Early Pliocene onset of modern Nordic Seas circulation related to ocean gateway changes |
author_facet |
De Schepper, S. Schreck, M. Beck, K.M. Matthiessen, J. Fahl, K. Mangerud, G. |
author_sort |
De Schepper, S. |
title |
Early Pliocene onset of modern Nordic Seas circulation related to ocean gateway changes |
title_short |
Early Pliocene onset of modern Nordic Seas circulation related to ocean gateway changes |
title_full |
Early Pliocene onset of modern Nordic Seas circulation related to ocean gateway changes |
title_fullStr |
Early Pliocene onset of modern Nordic Seas circulation related to ocean gateway changes |
title_full_unstemmed |
Early Pliocene onset of modern Nordic Seas circulation related to ocean gateway changes |
title_sort |
early pliocene onset of modern nordic seas circulation related to ocean gateway changes |
publishDate |
2015 |
url |
https://www.vliz.be/imisdocs/publications/280225.pdf |
geographic |
Arctic Bering Strait Greenland Pacific |
geographic_facet |
Arctic Bering Strait Greenland Pacific |
genre |
Arctic Bering Strait Greenland Nordic Seas North Atlantic Deep Water North Atlantic |
genre_facet |
Arctic Bering Strait Greenland Nordic Seas North Atlantic Deep Water North Atlantic |
op_source |
%3Ci%3ENature+Comm.+6%288659%29%3C%2Fi%3E%3A+8+pp.+%3Ca+href%3D%22http%3A%2F%2Fdx.doi.org%2F10.1038%2Fncomms9659%22+target%3D%22_blank%22%3Ehttp%3A%2F%2Fdx.doi.org%2F10.1038%2Fncomms9659%3C%2Fa%3E |
op_relation |
info:eu-repo/semantics/altIdentifier/wos/000364936200001 info:eu-repo/semantics/altIdentifier/doi/oi.org/10.1038/ncomms9659 https://www.vliz.be/imisdocs/publications/280225.pdf |
op_rights |
info:eu-repo/semantics/openAccess |
op_doi |
https://doi.org/10.1038/ncomms9659 |
container_title |
Nature Communications |
container_volume |
6 |
container_issue |
1 |
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1766336230238191616 |