Synchronous radiocarbon and climate shifts during the last deglaciation

K. A. Hughen, J. R. Southon, S. J. Lehman, J. T. Overpeck

Research output: Contribution to journalArticle

304 Scopus citations

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.

Original languageEnglish (US)
Pages (from-to)1951-1954
Number of pages4
JournalScience
Volume290
Issue number5498
DOIs
StatePublished - Dec 8 2000

ASJC Scopus subject areas

  • General

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