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TitleReport of activities for GEM-2 reconnaissance surficial geology, Indin Lake, Northwest Territories, NTS 86-B: GEM-2 Mackenzie Project
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AuthorKerr, D E; O'Neill, H B
SourceGeological Survey of Canada, Open File 8313, 2017, 15 pages, https://doi.org/10.4095/306157
Year2017
PublisherNatural Resources Canada
Documentopen file
Lang.English
Mediaon-line; digital
File formatpdf (Adobe® Reader®)
ProvinceNorthwest Territories
NTS75C; 75D; 75E; 75F; 75K; 75L; 75M; 75N; 76C; 76D; 76E; 76F; 76K; 76L; 85; 86; 95A; 95; 96
AreaIndin Lake; Great Bear Lake; Great Slave Lake
Lat/Long WENS-126.0000 -108.0000 68.0000 60.0000
Subjectssurficial geology/geomorphology; postglacial deposits; organic deposits; peat; bogs; eolian deposits; dunes; alluvial deposits; flood plains; glacial deposits; glacial landforms; glacial features; glaciolacustrine deposits; glacial lakes; deltaic deposits; glaciofluvial deposits; outwash plains; outwash fans; ice contact deposits; kettles; eskers; hummocks; tills; moraines; till ridges; crag and tail; drumlins; glacial scours; colluvial deposits; till plains; glacial flutings; glacial striations; ice flow; ice movement directions; thermokarst; meltwater channels; flow trajectories; drumlinoids; kames; raised beaches; terraces; scarps; escarpments; sands; gravels; silts; glacial history; Wisconsinian glacial stage; glaciation; deglaciation; isostasy; isostatic rebound; shoreline changes; snow; ice; vegetation; permafrost; periglacial features; frost heaving; ice wedges; patterned ground; ground ice; photogrammetric techniques; airphoto interpretation; mapping techniques; Glacial Lake McConnell; Mackenzie Corridor; Laurentide Ice Sheet; geological mapping; icings; snowpacks; blow outs; diamicton; Phanerozoic; Cenozoic; Quaternary
Illustrationslocation maps; geoscientific sketch maps
Viewing
Location
 
Natural Resources Canada Library - Ottawa (Earth Sciences)
 
ProgramMackenzie Corridor, North Bear Surficial Mapping, GEM2: Geo-mapping for Energy and Minerals
Released2017 10 31
AbstractThe glaciated landscape within the study area exhibits large-scale ice flow features such as drumlinoids, crag-and-tails, fluted bedrock, as well as striations, which record westward to southwestward ice flow during the last glaciation. Glacially scoured bedrock dominates the map area. Discontinuous till veneer occurs throughout the map area. Glaciofluvial landforms, including eskers, kames, and outwash plains, are part of meltwater corridors that generally trend westward and southwestward. During deglaciation, which began about 10.5 ka BP, a small number of recessional moraines were formed. Glaciolacustrine sediments, associated with Glacial Lake McConnell, were deposited in the southwestern regions. Associated glaciolacustrine deltas and beaches occur between 290-330 m elevation, marking high lake levels associated with the position of the eastward receding ice front during deglaciation. Isolated deltas unrelated to Glacial Lake McConnell were observed at 370 m and 390 m elevation. Postglacial eolian sediments exhibit dunes recording both north-northwestward and south-southeastward paleowind directions.
Summary(Plain Language Summary, not published)
The Indin Lake map (NTS 86-B) identifies surficial materials and associated landforms left by the retreat of the last glaciers. The surficial geology is based on aerial photograph interpretation, with striations from previous publications. 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 ID306157