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TitleSurficial geology, Clements Markham Inlet area, Nunavut, NTS 120-F and parts of NTS 120-E and NTS 120-G
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AuthorBednarski, J M
SourceGeological Survey of Canada, Canadian Geoscience Map 210, 2015, 1 sheet, https://doi.org/10.4095/295705
Year2015
PublisherNatural Resources Canada
Editionprelim.
Documentserial
Lang.English
Maps1 map
Map Info.surficial geology, glacial deposits and landforms, 1:250,000
ProjectionUniversal Transverse Mercator Projection, zone 19N (NAD83)
Mediaon-line; digital
RelatedThis publication is superceded by Bednarski, J M; (2016). Surficial geology, Clements Markham Inlet area, Nunavut, NTS 120-F and parts of NTS 120-E and G, Geological Survey of Canada, Canadian Geoscience Map no. 210, ed. 2, Prelim.
File formatreadme
File formatpdf; rtf; xml; shp; xml
ProvinceNunavut
NTS120E/04; 120E/05; 120E/12; 120E/13; 120F; 120G/03; 120G/04
AreaClements Markham Inlet
Lat/Long WENS -72.0000 -62.0000 83.2500 82.0000
Subjectssurficial geology/geomorphology; marine deposits; alluvial deposits; colluvial deposits; glacial features; glacial deposits; glacial landforms; glaciomarine deposits; glaciofluvial deposits; glaciolacustrine deposits; tills; kames; Cenozoic; Quaternary
ProgramRae Province Project Management, GEM2: Geo-mapping for Energy and Minerals
Image
Released2015 07 23
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. 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 ID295705