| Title | Reconnaissance surficial geology, Deep Rose Lake south, Nunavut, NTS 66-G south |
| Download | Downloads |
| |
| Licence | Please note the adoption of the Open Government Licence - Canada
supersedes any previous licences. |
| Author | Dredge, L A |
| Source | Geological Survey of Canada, Canadian Geoscience Map 411, 2020, 1 sheet, https://doi.org/10.4095/314862  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 | 2020 |
| Publisher | Natural Resources Canada |
| Document | serial |
| Lang. | English |
| Maps | 1 map |
| Map Info. | surficial geology, sediments, landforms, features, 1:100,000 |
| Projection | Universal Transverse Mercator Projection, UTM zone 14 (NAD83) |
| Media | on-line; digital |
| Related | This publication is related to Reconnaissance surficial
geology, Deep Rose Lake, Nunavut, NTS 66-G north |
| File format | readme
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| 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); tif |
| Province | Nunavut |
| NTS | 66G/01; 66G/02; 66G/03; 66G/04; 66G/05; 66G/06; 66G/07; 66G/08 |
| Area | Deep Rose Lake |
| Lat/Long WENS | -100.0000 -98.0000 65.5000 65.0000 |
| Subjects | surficial geology/geomorphology; Nature and Environment; Science and Technology; postglacial deposits; marine sediments; deltas; glacial deposits; glacial landforms; glacial features; deltaic sediments;
ice contact deposits; moraines; moraine, ribbed; tills; till plains; kettles; meltwater channels; paleocurrents; drumlinoids; crag and tail; glacial flutings; kames; glacial lakes; glacial erosion; eskers; lag deposits; sands; gravels; silts; clays;
boulders; permafrost; ground ice; periglacial features; thermokarst; patterned ground; ice-wedge polygons; frost boils; frost action; landforms; scarps; sediment reworking; glacial history; glaciation; ice flow; deglaciation; ice retreat; sea level
changes; shoreline changes; depositional environment; Thelon Sandstone; alluvial sediments; marine veneer; marine blanket; glaciomarine deltaic sediments; glaciolacustrine sediments; glaciolacustrine deltaic sediments; glaciolacustrine veneer;
glaciofluvial sediments; glaciofluvial outwash plain sediments; esker sediments; moraine ridges; till veneer; till blanket; terrace scarps; beach crests; limit of submergence, marine; subglacial meltwater corridors; ice-contact scarps; esker ridges;
outcrops; streamlined tills; ice-flow directions; glaciofluvial hummocky sediments; Phanerozoic; Cenozoic; Quaternary |
| Illustrations | location maps; index maps; aerial photographs |
| Program | GEM2: Geo-mapping for Energy and Minerals Rae Province, Synthesis of glacial history |
| Released | 2020 10 30 |
| Abstract | The Deep Rose Lake south map area is a landscape dominated by till plains and subglacial glaciofluvial landforms associated with late phases of the last glaciation. Most deposits have been shaped or
reworked by meltwater at the base of the glacier. The plains in the west half of the area are composed of sandy till derived from underlying Thelon Formation sandstone, while those in the east are stonier and are derived from granitic and gneissic
rocks. Boulder lags are common. Streamlined till forms indicate ice flow to the northwest. Major sharp-crested esker systems are oriented north and northwest, and suggest ice recession was initially to the south, and then to the southeast. Esker
corridors are flanked by areas of hummocky subglacial glaciofluvial deposits that grade laterally into ribbed moraine. Streamlining of glaciofluvial hummocky deposits near eskers suggests episodic grounding of the glacier base, governed by subglacial
hydraulics. Sandy marine deposits with thermokarst ponds are present in the eastern part of the map area up to an elevation of 160 to 165 m. |
| Summary | (Plain Language Summary, not published)
The Deep Rose south map (NTS 66-G south) in Nunavut identifies glacial and glaciofluvial surficial sediments and landforms deposited by the Laurentide
Ice Sheet until about 7000 years ago. The surficial geology is based on the interpretation of aerial photos. This work was undertaken to provide new geological knowledge and improve our understanding of the distribution, nature and glacial history of
surficial materials in the Rae Geological Province. The map will support informed decision making for resource development and land use. |
| GEOSCAN ID | 314862 |
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