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Synchronous
Radiocarbon and Climate Shifts during the Last Deglaciation
Hughen, K.A., J.R. Southon, S.J. Lehman, and J.T. Overpeck 2000 Science 290: 1951-1954 ABSTRACT Radiocarbon data from the Cariaco Basin provide calibration of the carbon-14 time scale across the period of deglaciation (15,000 to 10,000 years ago) with resolution available previously only from Holocene tree rings. Reconstructed changes in atmospheric carbon-14 are larger than previously thought, with the largest change occurring simultaneously with the sudden climatic cooling of the Younger Dryas event. Carbon-14 and published beryllium-10 data together suggest that concurrent climate and carbon-14 changes were predominantly the result of abrupt shifts in deep ocean ventilation. | Mailing
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Studies Laboratory, Department of Geosciences, The University of Arizona Last updated
August 11, 2003
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