Dinoflagellate cyst of sediment core M35003-4 southeast of Grenada

High-resolution, well-dated calcareous dinoflagellate cyst and organic carbon records from a 58 kyr sediment core (M35003-4) located southeast of the island of Grenada show that rapid and pronounced changes in cyst association and accumulation and organic carbon deposition occurred, controlled by (1) a significant southward shift in the position of the North Equatorial Current during the last glacial period and the Younger Dryas cold interval and (2) rapid changes in local productivity in marine isotopic stage 3 that are associated with variations in Orinoco River nutrient discharge and coastal upwelling strength. Prominent cyst accumulation peaks representing extremely oligotrophic and stratified thermocline conditions mimic the Greenland ice core and northern Atlantic Dansgaard/Oeschger stadials and Heinrich events. We provide new evidence for a coupled tropical/high-latitude Atlantic climate system during the last glacial period and suggest that changes in the zonality of the low-latitude winds may play an important role in modulating rapid interhemispheric climate variability.

Data and Resources

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Cite this as

Vink, Annemiek, Rühlemann, Carsten, Zonneveld, Karin A F, Mulitza, Stefan, Hüls, Matthias, Willems, Helmut (2001). Dataset: Dinoflagellate cyst of sediment core M35003-4 southeast of Grenada. https://doi.org/10.1594/PANGAEA.734812

DOI retrieved: 2001

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.734812
Author Vink, Annemiek
Given Name Annemiek
Family Name Vink
More Authors
Rühlemann, Carsten
Zonneveld, Karin A F
Mulitza, Stefan
Hüls, Matthias
Willems, Helmut
Source Creation 2001
Publication Year 2001
Resource Type application/zip - filename: Vink_2001
Subject Areas
Name: Lithosphere

Name: Oceans

Name: Paleontology

Related Identifiers
Title: Shifts in the Position of the North Equatorial Current and Rapid Productivity Changes in the western Tropical Atlantic during the Last Glacial
Identifier: https://doi.org/10.1029/2000PA000582
Type: DOI
Relation: IsSupplementTo
Year: 2001
Source: Paleoceanography
Authors: Vink Annemiek , Rühlemann Carsten , Zonneveld Karin A F , Mulitza Stefan , Hüls Matthias , Willems Helmut .

Title: Reconstruction of recent and late Quaternary surface water masses of the western subtropical Atlantic Ocean based on calcareous and organic-walled dinoflagellate cysts
Identifier: urn:nbn:de:gbv:46-ep000102797
Type: DOI
Relation: References
Year: 2000
Source: Berichte aus dem Fachbereich Geowissenschaften der Universität Bremen
Authors: Vink Annemiek .