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TitleRegional assessment of the presence of taliks below Arctic lakes, Nunavut
LicencePlease note the adoption of the Open Government Licence - Canada supersedes any previous licences.
AuthorLeBlanc, A -MORCID logo; Chartrand, JORCID logo; Smith, S LORCID logo
SourceGeological Survey of Canada, Scientific Presentation 138, 2022, 1 sheet, Open Access logo Open Access
PublisherNatural Resources Canada
MeetingASM2021 - ArcticNet Annual Scientific Meeting 2021; December 6-10, 2021
Mediaon-line; digital
RelatedThis publication is related to the following publications
File formatpdf
NTS55J/13; 55K/14; 55K/15; 55K/16; 55N/01; 55N/02; 55N/03; 55O/04
AreaRankin Inlet
Lat/Long WENS -93.0833 -91.7500 63.2500 62.7500
Subjectssurficial geology/geomorphology; environmental geology; hydrogeology; mathematical and computational geology; geophysics; Nature and Environment; Science and Technology; Economics and Industry; permafrost; ground ice; periglacial features; talik; surface waters; lakes; lake water depths; lake terraces; topography; groundwater; groundwater flow; groundwater pollution; mining; mine development; transport mechanisms; mine waste products; waste disposal sites; modelling; statistical analyses; ground temperatures; remote sensing; satellite imagery; ArcticDEM; Meliadine Mine; Mining industry; Classification; Methodology; Digital elevation data
Illustrationsmodels; location maps; geoscientific sketch maps; plots
ProgramGEM-GeoNorth: Geo-mapping for Energy and Minerals GEM Program Coordination
Released2022 06 21
Summary(Plain Language Summary, not published)
Open taliks, areas of unfrozen ground, are mainly found beneath large and deep lakes that do not freeze to their bottom. Open taliks connected to regional groundwater can affect the development of mine projects by providing pathways for mine water inflow or contaminant transport. This study presents a methodology to assess the presence of taliks below Arctic lakes at a regional scale. The methodology uses existing information on lakes and their surrounding ground and additional information from high-resolution satellite imagery and a digital elevation model. Results, under the form of regional maps, for mineral resource development areas in Nunavut are provided.

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