Accumulation rates of surface sediments in the Norwegian-Greenland Sea

Paetsch, H., Botz, R., Scholten, J. C. and Stoffers, P. (1992) Accumulation rates of surface sediments in the Norwegian-Greenland Sea Marine Geology, 104 (1-4). pp. 19-30. DOI 10.1016/0025-3227(92)90082-s.

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Abstract

Assuming a constant flux of 230Th to the sediment, surface, accumulation and sedimentation rates of surface sediments in the Norwegian-Greenland Sea have been calculated. The accumulation rates range from 0.7 to 4.0 g cm-2 ka-1, and the sedimentation rates range from 0.87 to 6.58 cm ka-1. Applying a simple box model it can be shown that the effects of bioturbation on the calculation are of minor importance for the area studied. The input of biological material indicated by the flux of CaCO3 is the highest (up to 1.2 g cm-2 ka-1) in areas influenced by the Norwegian Current, whereas in the Southern Greenland Sea the flux of CaCO3 is one order of magnitude lower. The pattern of the terrigenous input calculated by the difference between bulk sediment and CaCO3 flux reflects the importance of the Norwegian continent, the Greenland continent and the island Jan Mayen as source areas for terrigenous matter delivered to the Norwegian-Greenland Sea.

Document Type: Article
Research affiliation: Kiel University
Refereed: No
DOI etc.: 10.1016/0025-3227(92)90082-s
ISSN: 0025-3227
Date Deposited: 02 Feb 2012 09:27
Last Modified: 08 Oct 2012 10:42
URI: http://eprints.uni-kiel.de/id/eprint/16393

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