| Title | Reconnaissance surficial geology, Lynx Lake, Northwest Territories, NTS 75-J |
| Download | Downloads |
| |
| Licence | Please note the adoption of the Open Government Licence - Canada
supersedes any previous licences. |
| Author | Kerr, D E; Knight, R D ; Sharpe, D R; Cummings, D I |
| Source | Geological Survey of Canada, Canadian Geoscience Map 139, 2014, 1 sheet, https://doi.org/10.4095/293624  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 | 2014 |
| Publisher | Natural Resources Canada |
| Edition | prelim. |
| Document | serial |
| Lang. | English |
| Maps | 1 map |
| Map Info. | surficial geology, glacial deposits and landforms, 1:125,000 |
| Projection | Universal Transverse Mercator Projection, UTM zone 13 (NAD83) |
| Media | on-line; digital |
| Related | NRCan photo(s) in this
publication |
| File format | readme
|
| File format | pdf; rtf; shp; xml; xls; jpg; JPEG2000 |
| Province | Northwest Territories |
| NTS | 75J |
| Area | Lynx Lake; Sled Lake; Tent Lake; Howard Lake; Catholic Lake; Sandy Lake; Whitefish Lake; Garde Lake; Zucker Lake |
| Lat/Long WENS | -108.0000 -106.0000 63.0000 62.0000 |
| Subjects | surficial geology/geomorphology; glacial features; glacial deposits; glacial landforms; tills; sands; gravels; frost cracks; glaciolacustrine deposits; glaciofluvial deposits; organic deposits; alluvial
deposits; eolian deposits; Cenozoic; Quaternary |
| Program | GEM: Geo-mapping for Energy and Minerals GEM Tri-Territorial Information management & databases (Tri-Territorial Surficial Framework) |
| Released | 2014 05 12 (13:00) |
| Abstract | The Lynx Lake map area is characterized by three transitional zones based on distribution and nature of surficial sediments. In the southwest, large areas of bedrock and till veneer predominate.
Northwest and central regions exhibit an increase in overburden cover, notably fluted till blanket. The northeast and southeast map areas have a greater cover of till veneer, till blanket which is fluted and drumlinized, and hummocky till. The later
may contain large, subdued moraine ridges of variable orientation. The entire map area is dissected by glaciofluvial corridors consisting of eskers, ice-contact sediments and scoured bedrock, trending westward in the north and west-southwestward in
the central and southern regions. The earliest ice flow, inferred from rare striae and subtle fluted landforms in the eastern half of the map area, was southwestward. The last dominant ice flow was westward in the north, grading slightly
west-southwestward, in the central and southern regions. In the Whitefish Lake-Garde Lake area, as well as Lynx Lake-Howard Lake area, glaciolacustrine beaches and washing limits are developed on the flanks of some drumlinoids and glaciofluvial
sediments. They occur up to 25-30 m above current lake levels but the extent of these short-lived glacial lakes remains uncertain. |
| Summary | (Plain Language Summary, not published)
The Lynx Lake map (NTS 75-J) identifies surficial materials and associated landforms left by the retreat of the last glaciers which covered the area
about 9000 years ago. The surficial geology is based on aerial photograph interpretation and fieldwork. This work provides new geological knowledge and improve our understanding of the distribution, nature and glacial history of surficial
materials. |
| GEOSCAN ID | 293624 |
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