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Can the Greenland Climatic Jumps be Identified in Records from Ocean and Land?

Published online by Cambridge University Press:  20 January 2017

Wallace S. Broecker ,
Michael Andree ,
Georges Bonani ,
Willi Wolfli ,
Hans Oeschger  and
Mieczyslawa Klas
Wallace S. Broecker
Affiliation:
Lamont-Doherty Geological Observatory of Columbia University, Palisades, New York 10965 USA
Michael Andree
Affiliation:
Physics Institute, Universitat Bern, Sidlerstrasse 5, 3000 Bern, Switzerland
Georges Bonani
Affiliation:
Laboratorium fur Kernphysik, ETH Honggerberg, 8093 Zurich, Switzerland
Willi Wolfli
Affiliation:
Laboratorium fur Kernphysik, ETH Honggerberg, 8093 Zurich, Switzerland
Hans Oeschger
Affiliation:
Physics Institute, Universitat Bern, Sidlerstrasse 5, 3000 Bern, Switzerland
Mieczyslawa Klas
Affiliation:
Lamont-Doherty Geological Observatory of Columbia University, Palisades, New York 10965 USA
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Abstract

Sharp jumps in climate punctuate the records from borings in the Greenland ice cap during the time interval 60,000 to about 20,000 yr ago. Rapid fluctuations are also seen in foraminifera records for cores from the northern Atlantic and in a pollen record from a core from a bog in the Vosges Mountains in France. In this paper we present a new radiocarbon chronology for northern Atlantic deep-sea core V23-81 which permits comparison with the radiocarbon-dated Vosges Mountains pollen record. Because of the lack of a 14C chronology for the Greenland ice record and of distortions peculiar to each of the three records, it is not yet possible to say whether or not the events are genetically related.

Type
Research Article
Information
Quaternary Research , Volume 30 , Issue 1 , July 1988 , pp. 1 - 16
Copyright
University of Washington

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