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Radiocarbon Variability in the Western North Atlantic During the Last Deglaciation

Robinson, Laura F. and Adkins, Jess F. and Keigwin, Lloyd D. and Southon, John and Fernandez, Diego P. and Wang, S.-L. and Scheirer, Daniel S. (2005) Radiocarbon Variability in the Western North Atlantic During the Last Deglaciation. Science, 310 (5753). pp. 1469-1473. ISSN 0036-8075. http://resolver.caltech.edu/CaltechAUTHORS:20120829-101808337

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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.


Item Type:Article
Related URLs:
URLURL TypeDescription
http://dx.doi.org/ 10.1126/science.1114832DOIUNSPECIFIED
http://www.sciencemag.org/content/310/5753/1469PublisherUNSPECIFIED
Additional Information:© 2005 American Association for the Advancement of Science. Received for publication 13 May 2005; accepted 24 October 2005. Published online 3 November 2005. We acknowledge the Comer Foundation for Abrupt Climate Change, the Henry Luce Foundation, the American Chemical Society Petroleum Research Fund, and NSF grant numbers OCE-0096373 and OCE-0095331. We also thank all members of the cruise AT7-35 to the New England Seamounts.
Funders:
Funding AgencyGrant Number
Comer Foundation for Abrupt Climate ChangeUNSPECIFIED
Henry Luce FoundationUNSPECIFIED
American Chemical Society Petroleum Research FundUNSPECIFIED
NSFOCE-0096373
NSFOCE-0095331
Record Number:CaltechAUTHORS:20120829-101808337
Persistent URL:http://resolver.caltech.edu/CaltechAUTHORS:20120829-101808337
Official Citation:Radiocarbon Variability in the Western North Atlantic During the Last Deglaciation Laura F. Robinson, Jess F. Adkins, Lloyd D. Keigwin, John Southon, Diego P. Fernandez, S-L Wang, and Daniel S. Scheirer Science 2 December 2005: 310 (5753), 1469-1473.Published online 3 November 2005 [DOI:10.1126/science.1114832]
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:33647
Collection:CaltechAUTHORS
Deposited By: Ruth Sustaita
Deposited On:29 Aug 2012 17:40
Last Modified:29 Aug 2012 17:40

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