Eynaud, Frédérique; Malaizé, Bruno; Zaragosi, Sebastien; de Vernal, Anne; Scourse, James D; Pujol, Claude; Cortijo, Elsa; Grousset, Francis E; Penaud, Aurélie; Toucanne, Samuel; Turon, Jean-Louis; Auffret, Gérard A (2012): Paleotemperatures and paleosalinities from the Celtic Margin (Bay of Biscay) [dataset publication series]. PANGAEA, https://doi.org/10.1594/PANGAEA.810296, Supplement to: Eynaud, F et al. (2012): New constraints on European glacial freshwater releases to the North Atlantic Ocean. Geophysical Research Letters, 39(15), L15601, https://doi.org/10.1029/2012GL052100
Always quote citation above when using data! You can download the citation in several formats below.
Abstract:
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 xpressed 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.
Project(s):
Climate Change: Learning from the past climate (Past4Future)
Funding:
Seventh Framework Programme (FP7), grant/award no. 243908: Climate Change: Learning from the past climate
Coverage:
Latitude: 47.452000 * Longitude: -8.533833
Date/Time Start: 1995-05-30T00:00:00 * Date/Time End: 1995-05-30T00:00:00
Event(s):
MD95-2002 (MD952002) * Latitude: 47.452000 * Longitude: -8.533833 * Date/Time: 1995-05-30T00:00:00 * Elevation: -2174.0 m * Recovery: 30 m * Location: Meriadzec * Campaign: MD101 (IMAGES I) * Basis: Marion Dufresne (1995) * Method/Device: Calypso Corer (CALYPSO) * Comment: XX Sections, OK
License:
Creative Commons Attribution 3.0 Unported (CC-BY-3.0)
Size:
2 datasets
Download Data
Datasets listed in this publication series
- Eynaud, F; Malaizé, B; Zaragosi, S et al. (2012): Number of laminae in sediment core MD95-2002, Celtic Margin. https://doi.org/10.1594/PANGAEA.810295
- Eynaud, F; Malaizé, B; Zaragosi, S et al. (2012): Paleotemperatures and paleosalinities (10-35 ka BP) from sediment core MD95-2002, Celtic Margin. https://doi.org/10.1594/PANGAEA.810294