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Science 29 April 1994:
Vol. 264. no. 5159, pp. 692 - 696
DOI: 10.1126/science.264.5159.692
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Articles

The Last Deglaciation Event in the Eastern Central Arctic Ocean

Ruediger Stein 1, Seung-II Nam 1, Carsten Schubert 1, Christoph Vogt 1, Dieter Futterer 1, and Jan Heinemeier 2

1 Alfred Wegener Institute for Polar and Marine Research, Columbusstrasse, 27568 Bremerhaven, Germany
2 Institute of Physics and Astronomy, University of Aarhus, 8000 Aarhus C, Denmark

Oxygen isotope records of cores from the central Arctic Ocean yield evidence for a major influx of meltwater at the beginning of the last deglaciation 15.7 thousand years ago (16,650 calendar years B.C.). The almost parallel trends of the isotope records from the Arctic Ocean, the Fram Strait, and the east Greenland continental margin suggest contemporaneous variations of the Eurasian Arctic and Greenland (Laurentide) ice sheets or increased export of low-saline waters from the Arctic within the East Greenland Current during the last deglaciation. On the basis of isotope and carbon data, the modern surface- and deep-water characteristics and seasonally open-ice conditions with increased surface-water productivity were established in the central Arctic at the end of Termination lb about 7.2 thousand years ago or 6,000 calendar years B.C.).

Submitted on December 20, 1993
Accepted on March 17, 1994


THIS ARTICLE HAS BEEN CITED BY OTHER ARTICLES:
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