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TitleSurficial materials and landforms of Kluane National Park, Yukon Territory
AuthorRampton, V N
SourceGeological Survey of Canada, Paper 79-24, 1981, 37 pages,
MapsPublication contains 2 maps
Map Info.surficial geology, surficial materials, 1:250,000
Map Info.geological, quarternary landforms, 1:250,000
Mediapaper; on-line; digital
RelatedThis publication is contained in the following publications
File formatpdf
NTS115A/03; 115A/04; 115A/05; 115A/06; 115A/11; 115A/12; 115A/13; 115A/14; 115B; 115C/01; 115C/02; 115C/07; 115C/08; 115C/09; 115C/10; 115C/15; 115C/16; 115F/01; 115F/02; 115F/07; 115F/08; 115G/01; 115G/02; 115G/03; 115G/04; 115G/05; 115G/06; 115G/07; 115G/08; 115H/03; 115H/04; 115H/05; 115H/06
AreaKluane National Park
Lat/Long WENS-141.0000 -137.0000 61.5000 60.0000
Subjectssurficial geology/geomorphology; glaciofluvial deposits; physiographic subdivisions
Released1981 05 01; 2013 05 29
AbstractMajor physiographic elements of Kluane Park are Shakwak Valley along its northeastern edge and the St. Elias Mountains. The latter include the Kluane Ranges, which abut Shakwak Valley, "Bates Ranges", Duke Depression, Donjek Range, and Icefield Ranges, which form their ice-shrouded core.
The region has been subjected to repeated glacial and nonglacial intervals since late Tertiary time. However, most glacial landforms in the main valleys, primarily glacially scoured bedrock and outwash plains, were produced during the Kluane Glaciation between 29 000 and 12 500 years ago and subsequent deglaciation. Most talus fans and aprons and landslides are partly a result of oversteepening of valley walls caused by glacial erosion.
Near the south end of Kluane Lake, the Slims Soil developed during a warm interval between B700 and 2BOO years ago. Climatic deterioration around 2BOO years ago marked the beginning of Neoglaciation. Morainic ridges, massive ice-cored moraines, and rock glaciers are the result of glacier advances that occurred around 2BOO years ago, between 1250 and 1050 years ago, and during the last 450 years . Repeated advances by Lowell Glacier damned Alsek River and formed large lakes in its drainage basin also during Neoglaciation.