Physical properties of sediment cores from the Iberian Continental Slope

DOI

Climatic changes cause alterations in circulation patterns of the world oceans. The highly saline Mediterranean Outflow Water (MOW), built within the Mediterranean Sea crosses the Strait of Gibraltar in westerly directions, turning north-westward to stick to the Iberian Slope within 600-1500m water depths. Circulation pattern and current speed of the MOW are strongly influenced by climatically induced variations and thus control sedimentation processes along the South- and West - Iberian Continental Slope.Sedimentation characteristics of the investigated area are therefore suitable to reconstruct temporal hydrodynamic changes of the MOW. Detailed investigations on the silt-sized grain distribution, physical properties and hydroacoustic data were performed to recalculate paleo-current-velocities and to understand the sedimentation history in the Golf of Cadiz and the Portuguese Continental Slope. A time model based on d18Odata and 14C-datings of planktic foraminifera allowed the stratigraphical classification of the core material and thus the dating of the current induced sediment layers showing the variations of paleo-current intensities. The evaluation and interpretation of the gathered data sets enabled us to reconstruct lateral and temporal sedimentation patterns of the MOW for the Holocene and the late Pleistocene, back to the Last Glacial Maximum (LGM).

Supplement to: Heilemann, Kristina (2000): Hydrodynamische Änderungen des Mittelmeerausstromwassers und deren Abbildung in den Sedimenten des Iberischen Kontinentalhangs. PhD Thesis, Mathematisch-Naturwissenschaftliche Fakultät der Christian-Albrechts-Universität zu Kiel, Germany, 88 pp

Identifier
DOI https://doi.org/10.1594/PANGAEA.706905
Related Identifier https://nbn-resolving.org/urn:nbn:de:gbv:8-diss-4229
Metadata Access https://ws.pangaea.de/oai/provider?verb=GetRecord&metadataPrefix=datacite4&identifier=oai:pangaea.de:doi:10.1594/PANGAEA.706905
Provenance
Creator Heilemann, Kristina
Publisher PANGAEA
Publication Year 2000
Rights Creative Commons Attribution 3.0 Unported; https://creativecommons.org/licenses/by/3.0/
OpenAccess true
Representation
Language English
Resource Type Supplementary Publication Series of Datasets; Collection
Format application/zip
Size 18 datasets
Discipline Earth System Research
Spatial Coverage (-10.680W, 36.027S, -7.072E, 39.068N)
Temporal Coverage Begin 1997-04-21T12:05:00Z
Temporal Coverage End 1997-05-04T20:45:00Z