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TitleSurficial sediments, permafrost, and geomorphic processes, Kikerk Lake and Coppermine map areas, west Kitikmeot, District of Mackenzie, Northwest Territories
DownloadDownload (whole publication)
AuthorKerr, D E; Wolfe, S A; Ward, B C; Dredge, L A
SourceCanadian Shield/Bouclier canadien; by Geological Survey of Canada; Geological Survey of Canada, Current Research no. 1996-C, 1996 p. 197-204, https://doi.org/10.4095/207457 (Open Access)
Year1996
PublisherNatural Resources Canada
Documentserial
Lang.English
Mediapaper; on-line; digital
RelatedThis publication is contained in Geological Survey of Canada; (1996). Canadian Shield, Geological Survey of Canada, Current Research no. 1996-C
File formatpdf
ProvinceNunavut
NTS86O/01; 86O/02; 86O/07; 86O/08; 86O/09; 86O/10; 86O/15; 86O/16; 86P
AreaCoronation Gulf; Kikerk Lake; Tree River
Lat/Long WENS-115.0000 -112.0000 68.0000 67.0000
Subjectssurficial geology/geomorphology; environmental geology; permafrost; tills; drumlins; glaciofluvial deposits; deltaic deposits; ground ice; marine deposits; glaciomarine deposits; eskers; alluvial deposits; organic deposits; environmental impacts; glacial deposits; Quaternary
Illustrationssketch maps; photographs
ProgramSlave Province NATMAP Project
Released1996 02 01
AbstractSurficial sediments in the Coppermine (86O, east half) and Kikerk Lake (86P) sheets were mapped at a 1:125 000 scale. Till blankets and veneers, representing a single till sheet, are the most common surficial sediments, with exceptionally long drumlinoid features west of Kikerk Lake. Esker and outwash complexes occur throughout the area, serving as potential aggregate resources. Permafrost features include mudboils and solifluction lobes on till. Coarse grained glaciofluvial and deltaic deposits typically contain large ice-wedge polygons with wide, deeply incised troughs. These features may result from partial or complete meltout of underlying wedge ice, or signify the presence of massive ground ice at depth resulting in widening of troughs through creep deformation of underlying ice. Marine deposits composed primarily of clayey silt cover much of the coastal plain and are typically ice-rich in the upper 1.5 m, with numerous but relatively small retrogressive thaw flowslides.
GEOSCAN ID207457