CGRG Bibliography of Canadian Geomorphology
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Author : Cruden,D.M.; Thomson,S.; Kim, H.J.; and Peterson, A.E>
Date : 1995
Title : The Edgerton landslides
Publication : Canadian Geotechnical Journal
Issue : 32(6):
Page(s) : 989-1001



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Abstract

Observations over 20 years of three contiguous translational slides on the west wall of a 100 m deep valley in the Interior Plains document their evolution into advancing, composite, slow earth-flow earth-slides involving over a million cubic metres of displaced material. Colluvial deposits downslope of the apparent toes of the flows are moving. The reactivation of the abandoned slides in the Upper Cretaceous sedimentary rocks was likely triggered by years of higher than average precipitation following clearing of brush behind the crest of the slope. Back analysis is consistent with fully softened rock in the crowns of the slides and displaced materials at residual strength.

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Bibliography of Canadian Geomorphology