| Title | Reconnaissance surficial geology, Sloan River, Northwest Territories-Nunavut, NTS 86-K |
| Download | Downloads |
| |
| Licence | Please note the adoption of the Open Government Licence - Canada
supersedes any previous licences. |
| Author | Kerr, D E |
| Source | Geological Survey of Canada, Canadian Geoscience Map 450, 2022, 1 sheet, https://doi.org/10.4095/329452  Open Access |
| Links | Surficial geology map collection
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| Links | Collection de données de géologie de surface
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| Image |  |
| Year | 2022 |
| Publisher | Natural Resources Canada |
| Document | serial |
| Lang. | English |
| Maps | 1 map |
| Map Info. | surficial geology, sediments, landforms, features, 1:125,000 |
| Projection | Universal Transverse Mercator Projection, UTM zone 11 (NAD83) |
| Media | on-line; digital |
| Related | NRCan photo(s) in this
publication |
| Related | This publication is related to the
following publications |
| File format | readme
|
| File format | pdf; 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) |
| Province | Northwest Territories |
| NTS | 86K |
| Area | Sloan River; Great Bear Lake |
| Lat/Long WENS | -118.0000 -116.0000 67.0000 66.0000 |
| Subjects | surficial 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 |
| Illustrations | location maps; index maps; photographs |
| Program | Climate Change Geoscience Coastal Infrastructure |
| Released | 2022 05 27 |
| Abstract | The 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. |
| GEOSCAN ID | 329452 |
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