CGRG Bibliography of Canadian Geomorphology
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Author : Allen, D.M.; Michel, F.A.; and Judge, A.S.
Date : 1988
Title : The permafrost regime in the Mackenzie Delta, Beaufort Sea region, N.W.T., and its significance to the reconstruction of the palaeoclimatic history
Publication : Journal of Quaternary Science
Issue : 3:
Page(s) : 3-13
Abstract
In the Mackenzie Delta wide variations in the thickness and distribution of permafrost occur. This is due in part to differences in subsurface deltaic lithologies and to the complexity of the past surface temperature is exhibited, for example, by fluctuations in the mean annual ground temperature. Locally permafrost is thick owing to the high conductivities of ice-rich sandy and gravely sediments. Conversely, where low conductivity shales and mudstones are present, permafrost is thinner. Numerical models of permafrost aggradation suggest paleotemperatures from the Wisconsin. This proposed paleoclimate is sufficient to account for the observed maximum permafrost thickness in the area.
Bibliography of Canadian Geomorphology