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TitleSurficial geology, M'Clintock Inlet area, Nunavut, NTS 340-E and part of 340-H
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AuthorBednarski, J M
SourceGeological Survey of Canada, Canadian Geoscience Map 213, 2016, 1 sheet, https://doi.org/10.4095/298702
Year2016
PublisherNatural Resources Canada
Edition2, prelim.
Documentserial
Lang.English
Maps1 map
Map Info.surficial geology, glacial deposits and landforms, 1:250,000
ProjectionUniversal Transverse Mercator Projection, zone 18 (NAD83)
Mediaon-line; digital
RelatedThis publication supercedes Bednarski, J M; (2015). Surficial geology, M'Clintock Inlet area, Nunavut, NTS 340-E and part of NTS 340-H, Geological Survey of Canada, Canadian Geoscience Map no. 213, ed. prelim.
File formatreadme
File formatpdf; rtf; xml; xls; shp
ProvinceNunavut
NTS340E; 340H/01; 340H/02; 340H/03
AreaM'Clintock Inlet; Disraeli Fiord
Lat/Long WENS -78.0000 -72.0000 83.0833 82.0000
Subjectssurficial geology/geomorphology; colluvial deposits; alluvial deposits; glaciomarine deposits; glaciolacustrine deposits; glaciofluvial deposits; glacial deposits; glacial landforms; kames; tills; Quaternary; Cenozoic
ProgramRae Province Project Management, GEM2: Geo-mapping for Energy and Minerals
Image
Released2016 12 20
AbstractThe Quttinirpaaq National Park region is mountainous including the highest peak in eastern North America. Glaciers cover about half of the map area, including unique floating ice shelves along the north coast, which have largely broken up in the last few decades but many fiord and valley glaciers still contact the sea. Sedimentary rock outcrops form the dominant surficial unit, including large areas of frost shattered rubble mantling broad summits and slopes. Glacial debris is also widespread normally forming a thin discontinuous veneer of till or as isolated erratic boulders. In the past, as now, the main source of run-off and sediment is supplied by glacial meltwater. Consequently most of the unconsolidated sediment lies within formerly glaciated valleys and coastlines where there are complex associations of moraines, glaciofluvial and glaciomarine deposits related to the advance and retreat of valley glaciers and ice caps, coupled with falling sea levels caused by postglacial crustal uplift.
Summary(Plain Language Summary, not published)
The map identifies surficial materials and associated landforms left by the retreat of the last glaciers. The surficial geology is based on aerial photograph interpretation and limited fieldwork from various sources. This work provides new geological knowledge and improves our understanding of the distribution, nature and glacial history of surficial materials. It contributes to resource assessments and effective land use management.
GEOSCAN ID298702