| Title | A revised look at Canada's landscape: glacial processes and dynamics |
| Download | Download (whole publication) |
| Author | Paulen, R C |
| Source | New frontiers for exploration in glaciated terrain; by Paulen, R C (ed.); McClenaghan, M B (ed.); Geological Survey of Canada, Open File 7374, 2017 p. 5-12, https://doi.org/10.4095/300286 (Open Access) |
| Year | 2017 |
| Publisher | Natural Resources Canada |
| Edition | rev. |
| Meeting | New Frontiers for Exploration in Glaciated Terrain workshop, PDAC 2013 International Convention; Toronto; CA; March 1, 2013 |
| Document | open file |
| Lang. | English |
| Media | on-line; digital |
| Related | This publication is contained in Paulen, R C; McClenaghan, M
B; (2017). New frontiers for exploration in glaciated terrain, Geological Survey of Canada, Open File 7374, ed. rev. |
| Related | This publication supercedes Paulen, R C; Paulen, R C;
(2013). A revised look at Canada's landscape: glacial processes and dynamics, New frontiers for exploration in glaciated terrain, Geological Survey of Canada, Open File 7374 |
| Related | This publication is related to Paulen, R C; (2013). A
revised look at Canada's Landscape: Glacial processes and dynamics, New Frontiers for Exploration in Glaciated Terrain, PDAC 2013 short course |
| File format | pdf |
| Province | British Columbia; Alberta; Saskatchewan; Manitoba; Ontario; Quebec; New Brunswick; Nova Scotia; Prince Edward Island; Newfoundland and Labrador; Northwest Territories; Yukon; Nunavut |
| NTS | 1; 2; 3; 10; 11; 12; 13; 14; 15; 16; 20; 21; 22; 23; 24; 25; 26; 27; 28; 29; 30; 31; 32; 33; 34; 35; 36; 37; 38; 39; 40; 41; 42; 43; 44; 45; 46; 47; 48; 49; 52; 53; 54; 55; 56; 57; 58; 59; 62; 63; 64; 65;
66; 67; 68; 69; 72; 73; 74; 75; 76; 77; 78; 79; 82; 83; 84; 85; 86; 87; 88; 89; 92; 93; 94; 95; 96; 97; 98; 99; 102; 103; 104; 105; 106; 107; 114O; 114P; 115; 116; 117; 120; 340; 560 |
| Lat/Long WENS | -141.0000 -50.0000 90.0000 41.7500 |
| Subjects | economic geology; surficial geology/geomorphology; mineral occurrences; exploration methods; mineral exploration; drift prospecting; drift geochemistry; tills; till geochemistry; indicator elements;
glacial deposits; glacial landforms; glacial features; glacial history; sediment transport; glaciation; sedimentation dynamics; ice sheets; ice movement; ice retreat; Laurentide Ice Sheet; indicator minerals; Cenozoic; Quaternary |
| Illustrations | location maps; aerial photographs; tables |
| Program | GEM Tri-Territorial information management & databases (Tri-Territorial Indicator Minerals Framework), GEM: Geo-mapping for Energy and Minerals |
| Released | 2017 04 07 |
| Abstract | Our understanding of the Laurentide Ice Sheet has been significantly improved by recent developments in theoretical models of ice sheets and ice dynamics, understanding of mechanisms of glacial erosion,
transport and deposition, and mapping of glacial deposits and drift composition. Theoretical models have increasingly accommodated diverse glaciological, physiographic and geological factors that can affect ice flow, and have been used to reinterpret
the geological record in terms of glacial processes. The glacial system of North America is described at scales from continental (thousands of square kilometres), to regional (hundreds of square kilometres), local (kilometres to tens of kilometres),
and site-specific (hundreds of metres to kilometres). Drift prospecting is based on an understanding that indicators of economic mineralization recovered from glacial deposits can be traced back to their original bedrock source. Geochemical,
mineralogical and lithological methods employed in the exploration for mineral deposits in glaciated terrain requires knowledge of past glacial flow direction(s), means of entrainment, and variations in the nature of glacial dispersal such as glacial
sediment thickness, bedrock topography, bedrock erodibility, and basal glacial flow velocity gradient. Combined, this knowledge is used to determine the distance to the up-ice bedrock source from the identified down-ice dispersal train location. Over
the last two decades, drift prospecting in northern Canada has significantly improved through the continued development of ice sheets models, and the acquisition of empirical evidence for ice-flow patterns, drift composition and glacial history.
Increased attention to the dynamic nature of glacial dispersal centers and related ice-flow complexes has thus become increasingly important for mineral exploration in northern Canada. |
| GEOSCAN ID | 300286 |
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