CGRG Bibliography of Canadian Geomorphology
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Author : Aylsworth, J.M.; Rodkin-Duk, A.; Robertson, T.; and Traynor, J.A.
Date : 2000.
Title : Landslide of the Mackenzie valley and adjacent mountanainous and coastal regions.
Publication : The Physical Environment of the Mackenzie Valley: a Baseline for the Assessment of Environmental Change, Edited by: L.D. Dyke and G.R. Brooks. Geological Survey of Canada, Bulletin
Issue : 547:
Page(s) : 167-176.
Abstract
Approximately 3400 landslides, distinguished by failure class (flow, slide, complex, unclassified) and parent material (bedrock or unconsolidated Quaternary sediment) have been mapped in the Mackenzie valley. Many landslides are related to the degradation of permafrost and ground ice; others are influenced by the control permafrost maintains on ground water movement. Given the prevalence of permafrost and icy sediments in this region, any climate change leading to a rise in ground temperatures and degradation of permafrost will increase the frequency of landslides. The most vulnerable sites include ice-rich, fine-grained sediments on slopes near water bodies or in fire scars, and frozen, coarse-grained sediments overlying clay or clayey till in steep riverbanks where permafrost does not extend to the base of the section.
Bibliography of Canadian Geomorphology