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Science. 1998 Dec 18;282(5397):2235-8.

Abrupt climate oscillations during the last deglaciation in central north america

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  • 1Z. C. Yu, Department of Botany, University of Toronto, Toronto, Ontario M5S 3B2, Canada, and Centre for Biodiversity and Conservation Biology; Royal Ontario Museum, Toronto, Ontario M5S 2C6, Canada. U. Eicher, Climate and Environmental.


Evidence from stable isotopes and a variety of proxies from two Ontario lakes demonstrate that many of the late glacial-to-early Holocene events that are well known from the North Atlantic seaboard, such as the Gerzensee-Killarney Oscillation (also known as the Intra-Allerod Cold Period), Younger Dryas, and Preboreal Oscillation, also occurred in central North America. These results thus imply that climatic forcing acted in the same manner in both regions and that atmospheric circulation played an important role in the propagation of these events.

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