CGRG Bibliography of Canadian Geomorphology
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Author : Cwynar, L.C.; Spear, R.W.; Vincent, J.; and Kurek, J.
Date : 2003.
Title : The Preboreal Oscillation in eastern North America.
Publication : Joint Annual Meeting of the Canadian Quaternary Association and the Canadian Geomorphology Research Group. Halifax, Nova Scotia, June 8-12, 2003.
Issue :
Page(s) :
Abstract
The Preboreal Oscillation is a short-lived (~200 yr) cooling that occurred early in the Holocene, centered at about 9600 radiocarbon yr BP (10,900 cal yr BP). Originally discovered in NW Europe and well documented in the Greenland ice cores and some North Atlantic marine records, scant evidence exists for it in eastern North America. We have analyzed and dated cores of lake sediment from Maritime Canada and the White Mountains of New Hampshire. Oscillations in loss-on-ignition values (an index of organic sediment content) indicate the widespread presence of the Preboreal Oscillation. Attempts to quantify the magnitude of temperature change associated with this oscillation through the use chironomid analysis have yielded mixed results.
Bibliography of Canadian Geomorphology