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Ocean science: Radiocarbon variability in the western North Atlantic during the last deglaciation

Science

By:
, , , , , ,
DOI: 10.1126/science.1114832

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Abstract

We present a detailed history of glacial to Holocene radiocarbon in the deep western North Atlantic from deep-sea corals and paired benthic-planktonic foraminifera. The deglaciation is marked by switches between radiocarbon-enriched and -depleted waters, leading to large radiocarbon gradients in the water column. These changes played an important role in modulating atmospheric radiocarbon. The deep-ocean record supports the notion of a bipolar seesaw with increased Northern-source deep-water formation linked to Northern Hemisphere warming and the reverse. In contrast, the more frequent radiocarbon variations in the intermediate/deep ocean are associated with roughly synchronous changes at the poles.

Additional Publication Details

Publication type:
Article
Publication Subtype:
Journal Article
Title:
Ocean science: Radiocarbon variability in the western North Atlantic during the last deglaciation
Series title:
Science
DOI:
10.1126/science.1114832
Volume
310
Issue:
5753
Year Published:
2005
Language:
English
Larger Work Type:
Article
Larger Work Subtype:
Journal Article
First page:
1469
Last page:
1473
Number of Pages:
5