(Table 2) Age determination of sediment cores MD95-2002 and MD03-2692

• Main Authors: Eynaud, Frédérique, Zaragosi, Sebastien, Scourse, James D, Mojtahid, Meryem, Bourillet, Jean Francois, Hall, Ian R, Penaud, Aurélie, Locascio, M, Reijonen, A
• Format: Dataset
• Language: English
• Published: PANGAEA 2007
• Subjects: Age; 14C AMS; 14C calibrated; 14C milieu/reservoir corrected (-400 yr); dated; dated material; dated standard deviation; Calendar age; standard deviation; CALYPSO; Calypso Corer; DEPTH; sediment/rock; Event label; Golf of Gascogne; IMAGES I; Laboratory; Marion Dufresne (1995); MD03-2692; MD101; MD133; MD952002; MD95-2002; Meriadzec; Reference/source; Sample ID; SEDICAR; Ice Sheet
• Online Access: https://doi.pangaea.de/10.1594/PANGAEA.816877; https://doi.org/10.1594/PANGAEA.816877

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).