| Title | La dégradation et la géochimie du pergélisol |
| Download | Downloads |
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| Licence | Please note the adoption of the Open Government Licence - Canada
supersedes any previous licences. |
| Author | Duchesne, M J ;
Gammon, P |
| Source | Natural Resources Canada, General Information Product 143f, 2023, 1 pages, https://doi.org/10.4095/331801  Open Access |
| Image |  |
| Year | 2023 |
| Publisher | Natural Resources Canada |
| Document | serial |
| Lang. | French |
| Media | digital; on-line |
| Related | This publication is a translation of Permafrost degradation
and geochemistry project |
| File format | pdf |
| Province | Canada; 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 | geochemistry; Nature and Environment; permafrost; permafrost geochemistry; climate effects; climate; climate, arctic |
| Illustrations | photographs |
| Program | Environmental
Geoscience Program Management |
| Released | 2021 01 01; 2023 07 21 |
| Summary | (Plain Language Summary, not published)
Permafrost underlies approximately 50% of the Canadian land mass, including offshore beneath the Arctic shelf. Active thawing of permafrost is a natural
geological process that is being accelerated by climate change. As permafrost degrades, contaminants can be released into the environment, such as heavy metals, trapped greenhouse gases and saline pore fluids. The impacts of these processes have
profound and poorly understood implications for environmental practices in permafrost terrains. This project will document the environmental effects of permafrost degradation in the western Canadian Arctic, including along: - coastal areas where
permafrost destabilization leads to marine erosion (Tuktoyaktuk Coastlands, northern Yukon, Beaufort Sea); - highway corridors where infrastructure development has disrupted permafrost and released contaminants (Inuvik- Tuktoyaktuk Highway, Dempster
Highway). This research will be undertaken using both novel and traditional geophysical, geochemical and hydrological techniques. Quantification of the environmental impacts of changing permafrost conditions will guide methodological and regulatory
developments for assessing and monitoring these impacts. |
| GEOSCAN ID | 331801 |
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