CGRG Bibliography of Canadian Geomorphology
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Author : England, J.
Date : 1976
Title : Late Quaternary glaciation of the eastern Queen Elizabeth Islands, Northwest Territories
Publication : Quaternary Research
Issue : 6(2):
Page(s) : 185-202
Abstract
Local postglacial isobases are constructed over northeastern Ellesmere Island and Polaris Promontory, northwestern Greenland, for 7500 and 6000 BP. Both sets of isobases demonstrate a strong upward displacement extending from northeastern Ellesmere Island toward the Greenland Ice Sheet. This reflects two conditions: (1) the glacioisostatic dominance, but not coverage, of the Greenland Ice Sheet over northeastern Ellesmere Island and (2) an accompanying, restricted advance of the northern Ellesmere Island ice sheet during the last glaciation. Regional isobases are also constructed over the Queen Elizabeth Islands and the adjacent Greenland coast. These isobases provisionally indicate that the Queen Elizabeth Islands contribute to the westward extension of the Greenland isobases. This ridge of uplift was produced by the combined glacioisostatic depressions from the ice sheets over the Queen Elizabeth Islands and Greenland. These ice sheets, however, are not considered to have been convergent during the last glaciation. Three postglacial uplift curves from northeastern Ellesmere Island more closely parallel the general decay curves characteristic of the central and southern Canadian Arctic than do previously constructed uplift curves from northern Ellesmere Island.
Bibliography of Canadian Geomorphology