Deglacial laminated facies on the NW European continental margin: The hydrographic significance of British-Irish Ice Sheet deglaciation and Fleuve Manche paleoriver discharges
[1] We have compiled results obtained from four high sedimentation rate hemipelagic sequences from the Celtic sector of the NW European margin ( NE Atlantic) to investigate the paleoceanographic and paleoclimatic evolution of the area over the last few climatic cycles. We focus on periods characteri...
Published in: | Geochemistry, Geophysics, Geosystems |
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Language: | English |
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American Geophysical Union
2007
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Online Access: | http://okina.univ-angers.fr/publications/ua3934 https://doi.org/10.1029/2006GC001496 |
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ftunivangokina:oai:okina.univ-angers.fr:3934 2023-05-15T16:40:27+02:00 Deglacial laminated facies on the NW European continental margin: The hydrographic significance of British-Irish Ice Sheet deglaciation and Fleuve Manche paleoriver discharges F. Eynaud S. Zaragosi J.D. Scourse M. Mojtahid J.F. Bourillet I.R. Hall A. Penaud M. Locascio A. Reijonen 2007 http://okina.univ-angers.fr/publications/ua3934 https://doi.org/10.1029/2006GC001496 eng eng American Geophysical Union Geochemistry, Geophysics, Geosystems Article scientifique dans une revue à comité de lecture 2007 ftunivangokina https://doi.org/10.1029/2006GC001496 2017-04-13T17:48:57Z [1] We have compiled results obtained from four high sedimentation rate hemipelagic sequences from the Celtic sector of the NW European margin ( NE Atlantic) to investigate the paleoceanographic and paleoclimatic evolution of the area over the last few climatic cycles. We focus on periods characteristic of deglacial transitions. We adopt a multiproxy sedimentological, geochemical, and micropaleontological approach, applying a sampling resolution down to ten microns for specific intervals. The investigation demonstrates the relationships between the Bay of Biscay hydrography and the glacial/deglacial history of both the proximal British-Irish Ice Sheet (BIIS) and the western European continent. We identify recurrent phases of laminae deposition concurrent with major BIIS deglacial episodes in all the studied cores. Evidence for abrupt freshwater discharges into the open ocean highlights the influence of such events at a regional scale. We discuss their impact at a global scale considering the present and past key location of the Bay of Biscay versus the Atlantic Meridional Overturning Circulation (AMOC). Article in Journal/Newspaper Ice Sheet Université Angers: Okina (Open Knowledge, INformation, Access) Geochemistry, Geophysics, Geosystems 8 6 n/a n/a |
institution |
Open Polar |
collection |
Université Angers: Okina (Open Knowledge, INformation, Access) |
op_collection_id |
ftunivangokina |
language |
English |
description |
[1] We have compiled results obtained from four high sedimentation rate hemipelagic sequences from the Celtic sector of the NW European margin ( NE Atlantic) to investigate the paleoceanographic and paleoclimatic evolution of the area over the last few climatic cycles. We focus on periods characteristic of deglacial transitions. We adopt a multiproxy sedimentological, geochemical, and micropaleontological approach, applying a sampling resolution down to ten microns for specific intervals. The investigation demonstrates the relationships between the Bay of Biscay hydrography and the glacial/deglacial history of both the proximal British-Irish Ice Sheet (BIIS) and the western European continent. We identify recurrent phases of laminae deposition concurrent with major BIIS deglacial episodes in all the studied cores. Evidence for abrupt freshwater discharges into the open ocean highlights the influence of such events at a regional scale. We discuss their impact at a global scale considering the present and past key location of the Bay of Biscay versus the Atlantic Meridional Overturning Circulation (AMOC). |
format |
Article in Journal/Newspaper |
author |
F. Eynaud S. Zaragosi J.D. Scourse M. Mojtahid J.F. Bourillet I.R. Hall A. Penaud M. Locascio A. Reijonen |
spellingShingle |
F. Eynaud S. Zaragosi J.D. Scourse M. Mojtahid J.F. Bourillet I.R. Hall A. Penaud M. Locascio A. Reijonen Deglacial laminated facies on the NW European continental margin: The hydrographic significance of British-Irish Ice Sheet deglaciation and Fleuve Manche paleoriver discharges |
author_facet |
F. Eynaud S. Zaragosi J.D. Scourse M. Mojtahid J.F. Bourillet I.R. Hall A. Penaud M. Locascio A. Reijonen |
author_sort |
F. Eynaud |
title |
Deglacial laminated facies on the NW European continental margin: The hydrographic significance of British-Irish Ice Sheet deglaciation and Fleuve Manche paleoriver discharges |
title_short |
Deglacial laminated facies on the NW European continental margin: The hydrographic significance of British-Irish Ice Sheet deglaciation and Fleuve Manche paleoriver discharges |
title_full |
Deglacial laminated facies on the NW European continental margin: The hydrographic significance of British-Irish Ice Sheet deglaciation and Fleuve Manche paleoriver discharges |
title_fullStr |
Deglacial laminated facies on the NW European continental margin: The hydrographic significance of British-Irish Ice Sheet deglaciation and Fleuve Manche paleoriver discharges |
title_full_unstemmed |
Deglacial laminated facies on the NW European continental margin: The hydrographic significance of British-Irish Ice Sheet deglaciation and Fleuve Manche paleoriver discharges |
title_sort |
deglacial laminated facies on the nw european continental margin: the hydrographic significance of british-irish ice sheet deglaciation and fleuve manche paleoriver discharges |
publisher |
American Geophysical Union |
publishDate |
2007 |
url |
http://okina.univ-angers.fr/publications/ua3934 https://doi.org/10.1029/2006GC001496 |
genre |
Ice Sheet |
genre_facet |
Ice Sheet |
op_source |
Geochemistry, Geophysics, Geosystems |
op_doi |
https://doi.org/10.1029/2006GC001496 |
container_title |
Geochemistry, Geophysics, Geosystems |
container_volume |
8 |
container_issue |
6 |
container_start_page |
n/a |
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n/a |
_version_ |
1766030857996337152 |