| Title | Permafrost solute concentrations in an active gravel pit: half-time results / Concentrations d'éléments dissous du pergélisol dans une gravière active : résultats à mi-parcours |
| Download | Download (whole publication) |
| |
| Licence | Please note the adoption of the Open Government Licence - Canada
supersedes any previous licences. |
| Author | Gammon, P |
| Source | Public presentations of May 19, 2020: Environmental Geoscience Program, current status of research projects for the 2019-2024 program cycle; by Jacob, N; Outridge, P M ; Lintern, G; Bringué, M; Ahad, J M E; Gammon, P R; Rivard, C; Kao, H; White, D; Desbarats, A J; Galloway, J M; Duchesne, M J; Geological Survey of Canada, Scientific Presentation 118, 2020 p. 128-136, https://doi.org/10.4095/326991  Open Access |
| Links | Video - Vidéo
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| Year | 2020 |
| Publisher | Natural Resources Canada |
| Meeting | Public presentations of May 19, 2020: Environmental Geoscience Program; CA; May 19, 2020 |
| Document | serial |
| Lang. | English; French |
| Media | on-line; digital |
| Related | This publication is contained in Public presentations of May
19, 2020: Environmental Geoscience Program, current status of research projects for the 2019-2024 program cycle |
| Related | This publication is related to Permafrost
geochemistry |
| File format | pdf |
| Province | Northwest Territories |
| NTS | 107B/07; 107B/10; 107B/15; 107C/01; 107C/02; 107C/07; 107C/08 |
| Area | Inuvik; Tuktoyaktuk |
| Lat/Long WENS | -134.0000 -132.5000 69.5000 68.2500 |
| Subjects | environmental geology; hydrogeology; geochemistry; surficial geology/geomorphology; Nature and Environment; Economics and Industry; environmental studies; environmental impacts; permafrost; ground ice;
hydrologic environment; hydrologic properties; hydrologic budget; groundwater regimes; groundwater geochemistry; surface waters; water geochemistry; transport mechanisms; source areas; mining; gravels; solution; sampling techniques; sulphates;
bicarbonate; sodium; chloride; gypsum; salinity; pH patterns; brine; carbon dioxide; models; Environmental Geoscience Program (EGP); environmental baseline studies; cumulative effects |
| Illustrations | photographs; sketch maps; time series; plots |
| Program | Environmental
Geoscience Program Management |
| Released | 2020 09 15 |
| Abstract | The geochemistry resulting from permafrost freeze-thaw processes are poorly understood. This EGP activity aims to refine our current understanding of these processes by investigating the geochemistry of
a gravel pit associated with the building of the Inuvik to Tuktoyaktuk Highway (ITH). Construction-related water monitoring demonstrated that mining resulted in elevated concentrations for multiple elements in pit surface waters. Newly developed
sampling techniques have added groundwater samples to surface water data. These demonstrate that there has been no amelioration of the high solute concentrations in either surface-or ground-water. The source of the high concentrations is local
melting permafrost, although how the permafrost became so rich in solutes remains unclear. There are likely multiple ongoing water-rock interactions driven by these permafrost reactions. Unfortunately the water data is now orphaned because the
companion ice could not be sampled due to COVID19 travel restrictions. |
| Summary | (Plain Language Summary, not published)
This is the fifth year for the project leaders of the Environmental Geoscience Program (EGP) from the Geological Survey of Canada (GSC) within Natural
Resources Canada to present their annual scientific updates. Twelve power point presentations illustrate all the project status of all research going on within EGP. Subjects are connected to the following key words: Volcanoes, mercury, dredge
disposal at sea, oil spills, diluted bitumen, oil sands, aquifer impacts, induced seismicity, geological storage of carbon, cobalt, climate change, Mackenzie River Basin, permafrost thaw, permafrost geochemistry, and cumulative effects. |
| GEOSCAN ID | 326991 |
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