| Title | Surficial geology, Knox Lake, Newfoundland and Labrador-Quebec, NTS 23-I northwest |
| Download | Downloads |
| |
| Licence | Please note the adoption of the Open Government Licence - Canada
supersedes any previous licences. |
| Author | Paulen, R C ;
Rice, J M; Campbell, H E; McClenaghan, M B |
| Source | Geological Survey of Canada, Canadian Geoscience Map 377, 2019, 1 sheet, https://doi.org/10.4095/313547  Open Access |
| Links | Surficial geology map collection
|
| Links | Collection de données de géologie de surface
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| Image |  |
| Year | 2019 |
| 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 20 (NAD83) |
| Media | on-line; digital |
| Related | NRCan photo(s) in this
publication |
| Related | This publication is related to the following
publications |
| Related | This publication is superceded by Surficial geology, Knox
Lake, Newfoundland and Labrador-Quebec, NTS 23-I northwest |
| File format | readme
|
| File format | pdf (Adobe® Reader®); rtf; gdb (ESRI® ArcGIS(TM) 10.x); shp (ESRI® ArcGIS(TM) 10.x); xml (ESRI® ArcGIS(TM) 10.x); mxd (ESRI® ArcGIS(TM) 10.x) |
| Province | Newfoundland and Labrador; Quebec |
| NTS | 23I/11; 23I/12; 23I/13; 23I/14 |
| Area | Knox Lake; Labrador |
| Lat/Long WENS | -66.0000 -65.0000 55.0000 54.5000 |
| Subjects | surficial geology/geomorphology; postglacial deposits; organic deposits; colluvial deposits; landslide deposits; glacial deposits; glacial landforms; glacial features; glacial lakes; proglacial lakes;
ice contact deposits; beach ridges; eskers; paleocurrents; meltwater channels; tills; kettles; moraines; moraine, ribbed; drumlinoids; glacial flutings; crag and tail; kames; glacial striations; ice flow; silts; sands; boulders; gravels; clays;
permafrost; periglacial features; frost heaving; frost boils; solifluction; glacial history; glaciation; Wisconsinian glacial stage; ice sheets; deglaciation; shoreline changes; well level fluctuations; depositional environment; sedimentary
structures; bedrock geology; lithology; Glacial Lake McLean; Glacial Lake Low; Laurentide Ice Sheet; Ancestral Labrador Ice Divide; Core Zone; De Pas Batholith; Kaniapiskau Supergroup; Doublet Zone; New Quebec Orogen; fen deposits; alluvial
sediments; lacustrine sediments; glaciolacustrine sediments; glaciolacustrine beach sediments; glaciolacustrine littoral sediments; glaciolacustrine nearshore sediments; glaciofluvial sediments; glaciofluvial outwash plain sediments; glaciofluvial
hummocky sediments; glaciofluvial veneer; ridged tills, moraine; streamlined tills; till veneer; till blanket; moraine ridges; ice-flow directions; outcrops; station locations; beach crests; Phanerozoic; Cenozoic; Quaternary |
| Illustrations | location maps; index maps; photographs |
| Program | GEM2: Geo-mapping for Energy and Minerals Hudson/Ungava, Northeastern Quebec-Labrador, surficial geology |
| Program | Polar Continental Shelf Program
|
| Released | 2019 03 26 |
| Abstract | The Knox Lake area is of moderate relief characterized by extensive till blankets in the lowlands, and till veneers and bedrock outcrops at higher elevations. The region was differentially eroded by the
Laurentide Ice Sheet throughout Wisconsin time, largely influenced by the migration of the Ancestral Labrador ice divide. Phases of radial ice flow from the migrating ice divide imparted discordant erosional ice-flow landforms and ice-flow indicators
on the landscape. Terrain at higher elevations has been scoured by meltwaters from late-phase ablation of the ice sheet during deglaciation, which fed into an esker network trending from northwest to southeast across the map area. Extensive lowland
fens, glaciolacustrine strandlines, and littoral sediments that surround isolated streamlined till units in the central portion of the map, mark the former northern extent of inundation of a large, shallow glacial lake (glacial Lake Low). |
| Summary | (Plain Language Summary, not published)
Surficial geology map from the GEM2 Core Zone Surficial Activity straddling the border between Quebec and Newfoundland and Labrador. This map provides
the regional framework surficial geology in a region of Canada previously unmapped. |
| GEOSCAN ID | 313547 |
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