Age determination of three sediment cores from the Eurasian continental margin ...
Sediment cores located along the Eurasian continental margin (Arctic Ocean) have been studied to reconstruct the environmental changes in terms of waxing and waning of the Barents/Kara Sea ice-sheets, Atlantic water inflow, and sea-ice distribution over the last 150 kyr. The stratigraphy of the core...
| Main Authors: | , , , , |
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| Format: | Article in Journal/Newspaper |
| Language: | English |
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PANGAEA
2000
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| Subjects: | |
| Online Access: | https://dx.doi.org/10.1594/pangaea.762326 https://doi.pangaea.de/10.1594/PANGAEA.762326 |
| Summary: | Sediment cores located along the Eurasian continental margin (Arctic Ocean) have been studied to reconstruct the environmental changes in terms of waxing and waning of the Barents/Kara Sea ice-sheets, Atlantic water inflow, and sea-ice distribution over the last 150 kyr. The stratigraphy of the cores is based on stable oxygen isotopes, AMS 14C, and paleomagnetic data. We studied variations in marine and terrigenous input by a multiproxy approach, involving direct comparison of sedimentological and organo-geochemical data. Extensive episodes of northern Barents Sea ice-sheet growth during marine isotope stages (MIS) 6 and 2 have been supported by, at least, subsurface Atlantic water inflow, moisture-bearing storms, low summer insolation, and minimal calving of ice. Ice advance during MIS 4 was probably restricted to the shallow shelf. Between MIS 4 and MIS 2, large ice-sheet fluctuations correspond to contemporary Laurentide surging events and indicate short-term climatic changes in the Arctic Ocean as has ... : Supplement to: Knies, Jochen; Nowaczyk, Norbert R; Müller, Claudia; Vogt, Christoph; Stein, Ruediger (2000): A multiproxy approach to reconstruct the environmental changes along the Eurasian continental margin over the last 150 000 years. Marine Geology, 163(1-4), 317-344 ... |
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