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TitleMapping susceptibility to landslides in a permafrost environment: case study in the Mackenzie Valley, Northwest Territories
AuthorRiopel, S; Couture, R; Tewari, K
SourceProceedings of the 2006 GeoTec Event; 2006, 13 pages
Alt SeriesEarth Sciences Sector, Contribution Series 2005648
Meeting2006 GeoTec Event; Ottawa, ON; CA; June 18-21, 2006
Documentcomputer file
MapsPublication contains 1 map
Map Info.location, landslide susceptibility, 1:100,000
MediaCD-ROM; digital
ProvinceNorthwest Territories
NTS96E; 96F; 106H; 106I; 106J; 106N; 106O; 106P; 107B
AreaNorman Wells; Mackenzie River; Inuvik; Mackenzie Valley; Travaillant-Thunder
Lat/Long WENS-136.0000 -124.0000 69.0000 65.0000
Subjectssurficial geology/geomorphology; landslides; landslide deposits; slope deposits; slope failures; slope stability; slope stability analyses; permafrost; pipeline feasibility studies; pipelines; terrain analysis; terrain sensitivity; erosion susceptibility
Illustrationslocation maps; photographs; flow charts; tables
ProgramSecure Canadian Energy Supply
Released2006 01 01
AbstractIn the last three decades, hundreds of landslides, often affecting areas several hectares in size, have been identified and mapped in the Mackenzie Valley. This paper will present the Natural Resources Canada's Mackenzie Valley Project component focusing on regional landslide mapping along the proposed gas pipeline route, between Inuvik (68.35°N, 133.72°W) and Norman Wells (65.28°N, 126.83°W). In this paper, a parametric approach was applied to the Travaillant-Thunder pilot site to estimate the terrain susceptibility to landslides. The Travaillant-Thunder pilot site was selected as it offers a wide variety of terrains in terms of permafrost conditions, surficial geology, relief, vegetation, and is known for widespread landsliding where typical landslide types were observed. A preliminary landslide susceptibility map was created for the Travaillant-Thunder Pilot Site using a parametric method where six layers were input in the model: surficial geology, permafrost type, permafrost ice content, slope angle, slope aspect, and land cover. The susceptibility map is an important planning tool for communities, private companies and public departments when new infrastructures are built in permafrost terrains.

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