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When did the Last Interglacial end?

Published online by Cambridge University Press:  20 January 2017

R.P. Suggate
R.P. Suggate*
Affiliation:
New Zealand Geological Survey, P.O. Box 30368, Lower Hutt, New Zealand.
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Abstract

Disagreement on the time of the end of the Last Interglacial stems from lack of an agreed definition of an Interglacial. Although strictly a climatic episode, “Interglacial” as commonly used is essentially a chronologic unit equivalent to an Age, corresponding in time range to the chronostratigraphic unit Stage.

The name “Last Interglacial” has gained a global connotation so that its definition must take into account global rather than local effects of temperature fluctuations. An Interglacial begins with a warming to full interglacial warmth (as warm as the present day). It continues until a cooling of full glacial severity occurs, and includes any lesser coolings within a period of fluctuating climate. Such lesser coolings are recorded, particularly in deep-sea cores, following a period of warmth about 125,000 y.a. The cooling that led to the next full glacial cold began about 50,000 yr later. The Last Interglacial lasted from about 128,000 to 73,000 yr BP, equivalent to stage 5 of Shackleton and Opdyke.

Type
Original Articles
Information
Quaternary Research , Volume 4 , Issue 3 , September 1974 , pp. 246 - 252
Copyright
University of Washington

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