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TitleReconnaissance surficial geology, Sloan River, Northwest Territories-Nunavut, NTS 86-K
LicencePlease note the adoption of the Open Government Licence - Canada supersedes any previous licences.
AuthorKerr, D E
SourceGeological Survey of Canada, Canadian Geoscience Map 450, 2022, 1 sheet, Open Access logo Open Access
LinksSurficial geology map collection
LinksCollection de données de géologie de surface
PublisherNatural Resources Canada
Maps1 map
Map Info.surficial geology, sediments, landforms, features, 1:125,000
ProjectionUniversal Transverse Mercator Projection, UTM zone 11 (NAD83)
Mediaon-line; digital
RelatedNRCan photo(s) in this publication
RelatedThis publication is related to the following publications
File formatreadme
File formatpdf; rtf; gdb (ESRI® ArcGIS(TM) v.10.x); shp (ESRI® ArcGIS(TM) v.10.x); xml (ESRI® ArcGIS(TM) v.10.x); mxd (ESRI® ArcGIS(TM) v.10.x); xls (Microsoft® Excel® 2010)
ProvinceNorthwest Territories
AreaSloan River; Great Bear Lake
Lat/Long WENS-118.0000 -116.0000 67.0000 66.0000
Subjectssurficial geology/geomorphology; Science and Technology; Nature and Environment; permafrost; ground ice; periglacial features; thermokarst; patterned ground; ice wedges; kettles; ice-wedge polygons; landforms; escarpments; postglacial deposits; organic deposits; dunes; alluvial fans; landslide deposits; talus; glacial deposits; glacial landforms; glacial features; glacial lakes; ice contact deposits; tills; moraines; meltwater channels; paleocurrents; eskers; drumlinoids; drumlins; crag and tail; glacial flutings; kames; glacial striations; glacial erosion; glacial scours; sands; silts; gravels; boulders; depositional environment; glacial history; glaciation; ice flow; deglaciation; raised beaches; shoreline changes; paleodrainage; ice margins; Glacial Lake McConnell; Forcier Moraine; icings; snowpacks; eolian sediments; colluvial and mass-wasting deposits; alluvial sediments; alluvial floodplain sediments; alluvial terraced sediments; lacustrine sediments; lacustrine deltaic sediments; glaciolacustrine sediments; glaciolacustrine beach sediments; glaciolacustrine deltaic sediments; glaciolacustrine veneer; glaciofluvial sediments; glaciofluvial outwash plain sediments; glaciofluvial terraced sediments; glaciofluvial outwash fan sediments; esker sediments; hummocky tills; ridged tills, moraine; till veneer; till blanket; geological contacts; thermokarst depressions; terrace scarps; beach crests; moraine ridges; outcrops; ice-flow directions; subglacial meltwater corridors; ice-contact scarps; esker ridges; drumlinoid ridges; drumlin ridges; crag-and-tail ridges; buried drumlinoid ridges; pre-crag ridges; Phanerozoic; Cenozoic; Quaternary
Illustrationslocation maps; index maps; photographs
ProgramClimate Change Geoscience Coastal Infrastructure
Released2022 05 27
AbstractThe glaciated landscape of the Sloan River map area records evidence of old southwestward ice flow, followed by younger dominant northwestward flow in northernmost areas, and westward to west-southwestward flow in central and southern regions. Glacially and meltwater-scoured bedrock dominates the map area, with various till deposits discontinuously covering northern regions. Eskers and other glaciofluvial sediments define a poorly developed meltwater system, ranging in orientation from westward to northwestward. Meltwater channels show broader ranges of paleoflow directions in topographic highs. During deglaciation, which began about 10.5 ka BP, discontinuous north-south-trending recessional moraines were formed, defining a former margin of stagnating ice. Moraines in the northeast may represent the northern extension of the Forcier Moraine. Glaciolacustrine sediments associated with glacial Lake McConnell occur in the west, up to 300 m elevation. Other unrelated, isolated glaciolacustrine deltas, including those in the Coppermine River valley, occur further east up to 425 m elevation.
Summary(Plain Language Summary, not published)
The Sloan River map (NTS 86-K) 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 and nature of the surficial geology cover, and the glacial history of this region. It contributes to resource assessments and effective land use management.

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