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TitleGeotechnical characteristics and slope stability analysis of Beaufort Sea marine sediments, offshore Yukon and Northwest Territories: methodology and results
LicencePlease note the adoption of the Open Government Licence - Canada supersedes any previous licences.
AuthorMacKillop, K; Ouellette, D; King, E L; Blasco, S
SourceGeological Survey of Canada, Open File 8858, 2022, 317 pages, Open Access logo Open Access
LinksExpedition Database
LinksLa base de données d'expédition
PublisherNatural Resources Canada
Documentopen file
Mediadigital; on-line
File formatreadme
File formatpdf; rtf; xlsx (Microsoft® Excel®)
ProvinceNorthern offshore region; Northwest Territories; Yukon
NTS97G; 97H; 98A; 98B; 98C; 98D; 107C; 107D; 107E; 117D
AreaBeaufort Sea; Mackenzie Delta; Banks Island
Lat/Long WENS-140.0000 -122.0000 74.0000 69.0000
Subjectsmarine geology; surficial geology/geomorphology; engineering geology; geophysics; Science and Technology; Nature and Environment; Health and Safety; slope stability analyses; slope failures; landslides; marine sediments; marine sediment cores; sediment properties; bulk density; stress analyses; shear strength; atterberg limits; grain size analyses; geophysical surveys; acoustic surveys, marine; seismic surveys, marine; seismic data; geophysical logging; gamma ray logging; magnetic susceptibility; photography; earthquakes; earthquake magnitudes; epicentres; seismic risk; pore pressures; seismic waves; p waves; s waves; bathymetry; Methodology; Phanerozoic; Cenozoic; Quaternary
Illustrationslocation maps; photographs; plots; schematic representations; time series; profiles; schematic diagrams; histograms; geoscientific sketch maps; geophysical profiles; lithologic logs
ProgramPublic Safety Geoscience Beaufort Sea Exploration
Released2022 02 03
Summary(Plain Language Summary, not published)
In 2009 the GSC initiated a research project to study marine geohazards in the Canadian Beaufort Sea. The primary driver for the project was the oil and gas industry's interest in exploration in water depths up to 1500 m. Submarine slope instability represent one of the major potential geohazards. Assessment of slope instability requires measurement and evaluation of geotechnical properties of the marine sediments. A comprehensive geotechnical laboratory test program was carried out on 23 piston and gravity cores collected between 2009 and 2016. Geotechnical testing included MSCL bulk density, Atterberg limits, grain size, consolidation tests triaxial tests. This open file presents the geotechnical testing methodology and geotechnical results. It provides geotechnical profiles, high-resolution seismic data over most core sites and a preliminary infinite slope analysis of the Beaufort Sea surficial slope sediments.

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