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Synchronized terrestrial-atmospheric deglacial records around the North Atlantic.
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1996 (English)In: Science, ISSN 0036-8075, Vol. 274, no 5290, 1155-1160 p.Article in journal (Refereed) Published
Abstract [en]

On the basis of synchronization of three carbon-14 (C-14)-dated lacustrine sequences from Sweden With tree ring and ice core records, the absolute age of the Younger Dryas-Preboreal climatic shift was determined to be 11,450 to 11,390 +/- 80 years before the present. A 150-year-long cooling in the early Preboreal, associated with rising Delta(14)C values, is evident in all records and indicates an ocean ventilation change. This cooling is similar to earlier deglacial coolings, and box-model calculations suggest that they all may have been the result of increased freshwater forcing that inhibited the strength of the North Atlantic heat conveyor, although the Younger Dryas may have begun as an anomalous meltwater event.

Place, publisher, year, edition, pages
1996. Vol. 274, no 5290, 1155-1160 p.
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Natural Sciences
Research subject
Environmental Science, Paleoecology
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URN: urn:nbn:se:lnu:diva-17007DOI: 10.1126/science.274.5290.1155OAI: oai:DiVA.org:lnu-17007DiVA: diva2:482890
Available from: 2012-01-24 Created: 2012-01-24 Last updated: 2012-05-08Bibliographically approved

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