GEOSCAN Search Results: Fastlink


TitleReconnaissance surficial geology, Yellow Bluff (west), Nunavut, NTS 46-D west
AuthorDredge, L A; McMartin, I; Campbell, J E
SourceGeological Survey of Canada, Canadian Geoscience Map 145, 2013, 1 sheet, (Open Access)
PublisherNatural Resources Canada
Maps1 map
Map Info.surficial geology, glacial deposits and landforms, 1:100,000
ProjectionUniversal Transverse Mercator Projection, UTM zone 16 (NAD83)
Mediaon-line; digital
File formatreadme
File formatpdf; rtf; shp; xls; xml; jpg; JPEG2000
NTS46D/12; 46D/13; 46D/14
AreaYellowknife Bluff; Roes Welcome Sound; Kamarvik Harbour; Meen Lake
Lat/Long WENS-88.0000 -87.0000 65.0000 64.1667
Subjectssurficial geology/geomorphology; glacial features; glacial deposits; glacial landforms; alluvial deposits; marine deposits; glaciofluvial deposits; tills; sands; gravels; ice flow; flow trajectories; Cenozoic; Quaternary
Illustrationslocation maps
ProgramGEM: Geo-mapping for Energy and Minerals, Multiple Metals - Melville Peninsula (Nunavut)
Released2013 10 28
AbstractPreliminary surficial geology studies, based on air photo interpretation and limited field data, were undertaken in the Yellow Bluff West map area (NTS 46-D west) to provide an understanding of the distribution and nature of surficial materials, and regional glacial history. Much of the area is underlain by folded and faulted bedrock containing shallow glacially scoured lake basins. Striae on bedrock surfaces indicate ice flow toward the southeast. Till veneers are present in the area. Bare bedrock and modified till surfaces result from removal and/or reworking of glacial materials by glacial meltwater and postglacial marine wave-washing. Three major esker systems are associated with subglacial conduits, in which are aligned linear units of glaciofluvial hummocks and ridges. Below 150 m a.s.l, the flanks of the eskers have been reworked into beaches or flattened by the postglacial Tyrrell Sea. Except in areas around eskers where marine deposits are thickest, marine sediments are generally thin, and consist primarily of sand. Raised marine beaches oriented approximately parallel to the coast lie at low elevations.
Summary(Plain Language Summary, not published)
The Surficial geology Yellow Bluff, Nunavut map (NTS 46D-NW) identifies surficial materials and associated landforms left by the retreat of the last glaciers to have covered the area about 6000 years ago. The surficial geology is based on aerial photograph interpretation and limited fieldwork. This work was undertaken to provide new geological knowledge and improve our understanding of the distribution, nature and glacial history of surficial materials. This contributes to effective mineral exploration and supports informed decision making for resource development and land use.