| Registro completo |
| Provedor de dados: |
ArchiMer
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| País: |
France
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| Título: |
New constraints on European glacial freshwater releases to the North Atlantic Ocean
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| Autores: |
Eynaud, Frederique
Malaize, Bruno
Zaragosi, Sebastien
De Vernal, Anne
Scourse, James
Pujol, Claude
Cortijo, Elsa
Grousset, Francis E.
Penaud, Aurelie
Toucanne, Samuel
Turon, Jean-louis
Auffret, Gerard
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| Data: |
2012-08
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| Ano: |
2012
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| Resumo: |
During the late Quaternary, both external and internal forcings have driven major climatic shifts from glacial to interglacial conditions. Nonlinear climatic steps characterized the transitions leading to these extrema, with intermediate excursions particularly well expressed in the dynamics of the Northern Hemisphere cryosphere. Here we document the impact of these dynamics on the north-eastern North Atlantic Ocean, focussing on the 35-10 ka interval. Sea-surface salinities have been reconstructed quantitatively based on two independent methods from core MD95-2002, recovered from the northern Bay of Biscay adjacent to the axis of the Manche paleoriver outlet and thus in connection with proximal European ice sheets and glaciers. Quantitative reconstructions deriving from dinocyst and planktonic foraminiferal analyses have been combined within a robust chronology to assess the amplitude and timing of hydrological changes in this region. Our study evidences strong pulsed freshwater discharges which may have impacted the North Atlantic Meridional Overturning Circulation.
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| Tipo: |
Text
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| Idioma: |
Inglês
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| Identificador: |
http://archimer.ifremer.fr/doc/00086/19762/20100.pdf
DOI:10.1029/2012GL052100
http://archimer.ifremer.fr/doc/00086/19762/
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| Editor: |
Amer Geophysical Union
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| Formato: |
application/pdf
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| Fonte: |
Geophysical Research Letters (0094-8276) (Amer Geophysical Union), 2012-08 , Vol. 39 , P. -
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| Direitos: |
2012. American Geophysical Union. All Rights Reserved.
info:eu-repo/semantics/openAccess
restricted use
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