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TitleInfrastructure impacts on permafrost geochemistry
DownloadDownload (whole publication)
LicencePlease note the adoption of the Open Government Licence - Canada supersedes any previous licences.
AuthorGammon, P
SourcePublic presentations May 11, 2021: Environmental Geoscience Program, current status of research projects for the 2019-2024 program cycle; by Jacob, N; Jautzy, JORCID logo; Kao, HORCID logo; Rivard, CORCID logo; Ahad, J M EORCID logo; Gammon, P R; Outridge, P MORCID logo; Galloway, J MORCID logo; Desbarats, A JORCID logo; Duchesne, M JORCID logo; Bringué, MORCID logo; White, DORCID logo; Geological Survey of Canada, Scientific Presentation 125, 2021 p. 126-131, Open Access logo Open Access
PublisherNatural Resources Canada
MeetingPublic presentations: Environmental Geoscience Program; May 11, 2021
Mediaon-line; digital
RelatedThis publication is contained in Public presentations May 11, 2021: Environmental Geoscience Program, current status of research projects for the 2019-2024 program cycle
File formatpdf
ProvinceNorthwest Territories
NTS107B/07; 107B/10; 107B/15; 107C/01; 107C/02; 107C/07; 107C/08
AreaInuvik; Tuktoyaktuk; Mackenzie Delta
Lat/Long WENS-134.0000 -132.5000 69.5000 68.2500
Subjectsenvironmental geology; surficial geology/geomorphology; geophysics; geochemistry; Nature and Environment; Science and Technology; permafrost; ground ice; permafrost geochemistry; gravels; pits; in-field instrumentation; water levels; geophysical logging; Environmental Geoscience Program (EGP); Inuvik to Tuktoyaktuk Highway; cumulative effects; Federal programs; Scientific research; Infrastructures; Road construction; Construction materials; Methodology
ProgramEnvironmental Geoscience
Released2021 07 16
AbstractThe geochemistry resulting from permafrost freeze-thaw processes are poorly understood. This EGP activity aims to refine our current understanding of these processes, and how they are impacted by infrastructure development. This study will investigate the impacts on permafrost geochemistry associated with the construction of the Inuvik to Tuktoyaktuk Highway (ITH). It will investigate both the ITH development itself, and a gravel pit used as source material for ITH construction. However, COVID19-related restrictions meant that no fieldwork was possible in 2020-21. This situation means that there is no data to report for this fiscal year in terms of results and interpretations. This will continue until access to field sites is again permitted. Nonetheless, there were significant achievements for this project in the 2020-21 fiscal year, which include: 1) purchasing, through combined EGP - GEM-GeoNorth funding, arrays of sensors that will facilitate understanding of the geochemistry of permafrost active layer freeze-thaw processes; 2) development of a companion project within GEM-GeoNorth that aims to look at a wider array of permafrost processes; 3) continued engagement with Inuvialuit stakeholders to keep them up-to-date with respect to this project; 4) SLN capital purchase, in response to this projects request, of a cryogenic stage for laser ablation of ice - which will greatly advance the geochemical investigative arsenal.
Summary(Plain Language Summary, not published)
The goal of the Environmental Geoscience program (EGP) is to distinguish the environmental effects of natural resource development from those produced by natural processes, and to develop new approaches to support the sustainable use and development of Canada's natural resources through informed decision-making. The ultimate outcome of EGP is to increase the effectiveness and efficiency of Canadian environmental regulation and oversight. By developing innovative geoscience for environmental stewardship, as well as increasing public and private sector access to research findings, decision-makers have a greater capacity and are more empowered to carry out and review environmental assessments. This SP highlights the 5 public presentations provided on May 11, 2021 as well as all updates from all projects under the EGP.

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