Late Quaternary growth and decay of the Svalbard/Barents Sea ice sheet and paleoceanographic evolution in the adjacent Arctic Ocean |
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| Authors: | Jochen Knies Christoph Vogt and Ruediger Stein |
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| Institution: | (1) Alfred-Wegener-Institute for Polar- and Marine Research, Columbusstrasse, D-27568 Bremerhaven, Germany, DE |
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| Abstract: | The paleoceanography in the Nordic seas was characterized by apparently repeated switching on and off of Atlantic water advection.
In contrast, a continous influx of Atlantic waters probably occurred along the northern Barents Sea margin during the last
150 ka. Temporary ice-free conditions enhanced by subsurface Atlantic water advection and coastal polynyas accelerated the
final ice sheet build-up during glacial times. The virtually complete dissolution of biogenic calcite during interglacial
intervals was controlled mainly by CO2-rich bottom waters and oxidation of higher levels of marine organic carbon and indicates intensive Atlantic water inflow
and a stable ice margin.
Received: 25 February 1997 / Revision received: 4 March 1998 |
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