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Permanent link (DOI): https://doi.org/10.7939/R3C53F23V

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Thirty-five years of activity at the Lesueur landslide, Edmonton, Alberta Open Access

Descriptions

Author or creator
Cruden, D. M.
Peterson, A.
Thomson, S.
Zabeti, P.
Additional contributors
Subject/Keyword
Mudstone
Edmonton
Cretaceous
Erosion
Landslide
North Saskatchewan River
Type of item
Journal Article (Published)
Language
English
Place
Time
Description
Abstract: The Lesueur landslide occurred on 3 September 1963 on the outside of a meander of the North Saskatchewan River in northeast Edmonton. The displaced volume was 0.76 Mm(3) of Pleistocene deposits and underlying Upper Cretaceous mudstones. The trigger of the landslide is believed to be accelerated erosion of the slope toe caused by dumping of mine waste on the inside of the meander. Surveys in 1964, 1971, 1992, 1995, 1997, and 1998 have documented continued slope movements. The main scarp grew in height from 7.5 m on 4 September 1963 to 13.9 m in 1995 but retrogressed only 3 m. The displaced material extended up to 24 m into the North Saskatchewan River. When the forward motion of the passive block of the translational slide ceased to be driven by the sinking of the active block, river erosion caused rotational sliding of the displaced material on the surface of separation.
Date created
2002
DOI
doi:10.7939/R3C53F23V
License information
Rights
© 2002 NRC Research Press (Canadian Science Publishing). This version of this article is open access and can be downloaded and shared. The original author(s) and source must be cited.
Citation for previous publication
Cruden, D., Peterson, A., Thomson, S., & Zabeti, P. (2002). Thirty-five years of activity at the Lesueur landslide, Edmonton, Alberta. Canadian Geotechnical Journal, 39(1), 266-278. DOI: 10.1139/T01-088.
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