Age determination and paleotemperatures of sediment core MD95-2043 in the Alboran Sea

doi:doi:10.1594/PANGAEA.735759

Age determination and paleotemperatures of sediment core MD95-2043 in the Alboran Sea

Past sea surface temperature (SST) evolution in the Alboran Sea (western Mediterranean) during the last 50,000 years has been inferred from the study of C37 alkenones in International Marine Global Change Studies MD952043 core. This record has a time resolution of ~200 years allowing the study of millennial-scale and even shorter climatic changes. The observed SST curve displays characteristic sequences of extremely rapid warming and cooling events along the glacial period. Comparison of this Alboran record with delta18O from Greenland ice (Greenland Ice Sheet Project 2 core) shows a strong parallelism between these SST oscillations and the Dansgaard-Oeschger events. Five prominent cooling episodes standing out in the SST profile are accompanied by an anomalous high abundance of Neogloboquadrina pachyderma sinistral which is confined to the duration of these cold intervals. These features and the isotopic record reflect drastic changes in the surface hydrography of the Alboran Sea in association with Heinrich events Hl-5.

Data and Resources

This dataset has no data

Cite this as

Cacho, Isabel, Grimalt, Joan O, Pelejero, Carles, Canals, Miquel, Sierro, Francisco Javier, Flores, José-Abel, Shackleton, Nicholas J (1999). Dataset: Age determination and paleotemperatures of sediment core MD95-2043 in the Alboran Sea. https://doi.org/10.1594/PANGAEA.735759

DOI retrieved: 1999

Additional Info

Field	Value
Imported on	November 30, 2024
Last update	November 30, 2024
License	CC-BY-3.0
Source	https://doi.org/10.1594/PANGAEA.735759
Author	Cacho, Isabel
Given Name	Isabel
Family Name	Cacho
More Authors	Grimalt, Joan O Pelejero, Carles Canals, Miquel Sierro, Francisco Javier Flores, José-Abel Shackleton, Nicholas J
Source Creation	1999
Publication Year	1999
Resource Type	application/zip - filename: Cacho_1999
Subject Areas	Name: Lithosphere Name: Oceans Name: Paleontology
Related Identifiers	Title: Dansgaard-Oeschger and Heinrich event imprints in the Alboran Sea paleotemperature record Identifier: https://doi.org/10.1029/1999PA900044 Type: DOI Relation: IsSupplementTo Year: 1999 Source: Paleoceanography Authors: Cacho Isabel , Grimalt Joan O , Pelejero Carles , Canals Miquel , Sierro Francisco Javier , Flores José-Abel , Shackleton Nicholas J .