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TitleSurficial geology and periglacial features, Pangnirtung, Nunavut
AuthorCarbonneau, A -S; Allard, M; LeBlanc, A -M; L'Hérault, E; Mate, D; Oldenborger, G A; Gosselin, P; Sladen, W E
SourceGeological Survey of Canada, Canadian Geoscience Map 65, 2012, 1 sheet; 1 CD-ROM, (Open Access)
PublisherNatural Resources Canada
Maps1 map
Map Info.surficial geology, glacial deposits and landforms, 1:5,000
ProjectionUniversal Transverse Mercator Projection, UTM zone 20 (NAD83)
MediaCD-ROM; paper; on-line; digital
File formatreadme
File formatpdf; rtf; shp; xml; jpg; JPEG2000
Lat/Long WENS-65.7500 -65.5833 66.1667 66.1167
Subjectssurficial geology/geomorphology; Nature and Environment; glacial features; glacial deposits; glacial landforms; tills; sands; gravels; Cenozoic; Quaternary
ProgramGEM: Geo-mapping for Energy and Minerals, Multiple Metals - Cumberland Peninsula (Baffin Island, Nunavut)
ProgramCanada-Nunavut Geoscience Office, Funding Program
Released2012 01 06
AbstractThe map of surficial geology and periglacial features in Pangnirtung was done to help decision-makers, planners and engineers to better adapt the community to the impacts of climate change. The dominant surface unit on the map consists of colluvium deposits which are ice-rich sandy sediments deposited by overland-flow during snowmelt. Buried soils as old as 7080 cal BP were found imbedded in a colluvium layer. In the eastern sector of town, colluvium 1 to 4 metres thick covers till and a network of ice wedges. It also covers ice-rich marine silts and bedrock in the western sector. The central sector of town is occupied by a coarse, boulder-rich, Holocene outwash fan deposited by the Duval River. An alluvial terrace with boulders and some eroded channels were incised by the river in the fan. Bedrock and thick till deposits are found in the upper river valley and on the slopes of the fjord.