| Title | Report of activities for GEM-2 reconnaissance surficial geology, Indin Lake, Northwest Territories, NTS 86-B: GEM-2 Mackenzie Project |
| Download | Downloads |
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| Licence | Please note the adoption of the Open Government Licence - Canada
supersedes any previous licences. |
| Author | Kerr, D E; O'Neill, H B |
| Source | Geological Survey of Canada, Open File 8313, 2017, 15 pages, https://doi.org/10.4095/306157  Open Access |
| Image |  |
| Year | 2017 |
| Publisher | Natural Resources Canada |
| Document | open file |
| Lang. | English |
| Media | on-line; digital |
| File format | pdf (Adobe® Reader®) |
| Province | Northwest Territories |
| NTS | 75C; 75D; 75E; 75F; 75K; 75L; 75M; 75N; 76C; 76D; 76E; 76F; 76K; 76L; 85; 86; 95A; 95; 96 |
| Area | Indin Lake; Great Bear Lake; Great Slave Lake |
| Lat/Long WENS | -126.0000 -108.0000 68.0000 60.0000 |
| Subjects | surficial 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; icings; snowpacks; Phanerozoic; Cenozoic; Quaternary |
| Illustrations | location maps; geoscientific sketch maps |
| Program | GEM2: Geo-mapping for Energy and Minerals Mackenzie Corridor, North Bear Surficial Mapping |
| Released | 2017 10 31 |
| Abstract | The 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 ID | 306157 |
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