| Title | Surficial geology of the Contwoyto Lake map area (north half), District of Mackenzie, Northwest Territories |
| Download | Download (whole publication) |
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| Licence | Please note the adoption of the Open Government Licence - Canada
supersedes any previous licences. |
| Author | Kerr, D E; Wolfe, S A ; Dredge, L A |
| Source | Canadian Shield/Bouclier Canadien; by Geological Survey of Canada; Geological Survey of Canada, Current Research no. 1997-C, 1997 p. 51-59, https://doi.org/10.4095/208631  Open Access |
| Year | 1997 |
| Publisher | Natural Resources Canada |
| Document | serial |
| Lang. | English |
| Media | paper; on-line; digital |
| Related | This publication is contained in Canadian shield
|
| File format | pdf |
| Province | Nunavut |
| NTS | 76E/09; 76E/10; 76E/11; 76E/12; 76E/13; 76E/14; 76E/15; 76E/16 |
| Area | Canadian Shield; Contwoyto Lake |
| Lat/Long WENS | -112.0000 -110.0000 66.0000 65.5000 |
| Subjects | surficial geology/geomorphology; eskers; tills; drift prospecting; eskers; glaciofluvial deposits; aggregates; ice movement directions; dispersal patterns; ground ice; glaciolacustrine deposits;
provenance; pebble lithology; glacial history; glacial deposits; Quaternary |
| Illustrations | sketch maps; photographs |
| Program | Slave Province NATMAP Project |
| Released | 1997 02 01 |
| Abstract | Surficial geology mapping and till sampling in the Contwoyto Lake map area (76E, north half) provide regional baseline data for drift prospecting and integrated environmental assessment planning. Till
blankets and veneers are the most widespread surficial sediments, although hummocky till deposits also cover considerable area. Eskers, glaciofluvial outwash, and till can serve as potential aggregate resources, but may contain significant
thicknesses of massive ground ice. Dominant glacial flow directions, corresponding to the last ice movement, range from west-northwest to northwest south of Contwoyto Lake, and north-northwest to north-northeast north of the lake. Older northwest and
southwest flows were also recorded. Effects of the earlier southwest ice flow on dispersal patterns of pebbles in till are evident because lithological distributions strongly reflect the predominant northwest flow superimposed on a southwest flow.
Geotechnical investigations should be conducted in all areas prior to any major development due to massive ground ice potential |
| GEOSCAN ID | 208631 |
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