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TitleSurficial geology of the Contwoyto Lake map area (north half), District of Mackenzie, Northwest Territories
DownloadDownload (whole publication)
LicencePlease note the adoption of the Open Government Licence - Canada supersedes any previous licences.
AuthorKerr, D E; Wolfe, S AORCID logo; Dredge, L A
SourceCanadian Shield/Bouclier Canadien; by Geological Survey of Canada; Geological Survey of Canada, Current Research no. 1997-C, 1997 p. 51-59, Open Access logo Open Access
PublisherNatural Resources Canada
Mediapaper; on-line; digital
RelatedThis publication is contained in Canadian shield
File formatpdf
NTS76E/09; 76E/10; 76E/11; 76E/12; 76E/13; 76E/14; 76E/15; 76E/16
AreaCanadian Shield; Contwoyto Lake
Lat/Long WENS-112.0000 -110.0000 66.0000 65.5000
Subjectssurficial geology/geomorphology; eskers; tills; drift prospecting; eskers; glaciofluvial deposits; aggregates; ice movement directions; dispersal patterns; ground ice; glaciolacustrine deposits; provenance; pebble lithology; glacial history; glacial deposits; Quaternary
Illustrationssketch maps; photographs
ProgramSlave Province NATMAP Project
Released1997 02 01
AbstractSurficial geology mapping and till sampling in the Contwoyto Lake map area (76E, north half) provide regional baseline data for drift prospecting and integrated environmental assessment planning. Till blankets and veneers are the most widespread surficial sediments, although hummocky till deposits also cover considerable area. Eskers, glaciofluvial outwash, and till can serve as potential aggregate resources, but may contain significant thicknesses of massive ground ice. Dominant glacial flow directions, corresponding to the last ice movement, range from west-northwest to northwest south of Contwoyto Lake, and north-northwest to north-northeast north of the lake. Older northwest and southwest flows were also recorded. Effects of the earlier southwest ice flow on dispersal patterns of pebbles in till are evident because lithological distributions strongly reflect the predominant northwest flow superimposed on a southwest flow. Geotechnical investigations should be conducted in all areas prior to any major development due to massive ground ice potential

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