CGRG Bibliography of Canadian Geomorphology
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Author : Dyke, A.S.; Dredge, L.A.; and Vincent, J-S.
Date : 1982
Title : Configuration of the Laurentide ice sheet during the Late Wisconsin maximum
Publication : Geographie physique et Quaternaire
Issue : 36(1-2):
Page(s) : 5-14
Abstract
This paper extends and modifies recent conclusions that the Laurentide Ice Sheet had more than one dome at the Late Wisconsin maximum. We propose a model incorporating five domes (M'Clintock, Foxe, Labrador, Hudson, and (?) Caribou) based on the position of ice divides, ice flow patterns, drift composition, late-glacial features, post-glacial isostatic recovery and free-air gravity anomalies. Our Labrador and Hudson domes closely correspond to Tyrrell's Labradorean and Patrician ice sheets; our Caribou and M'Clintock domes together with the Franklin Ice Complex over the Queen Elizabeth Islands north of the Laurentide Ice Sheet, correspond to Tyrrell's original Keewatin Ice Sheet. The style of glaciation of the Foxe Basin region was not known to Tyrrell, but our reconstruction of the Foxe Dome is in close agreement with the original proposal of Ives and Andrews. Like Tyrrell, our reconstruction is based on field evidence obtained through extensivemapping; the single dome model continues to be unsupported by geological data.
Bibliography of Canadian Geomorphology