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TitleGeothermal studies in Yukon - collaborative efforts to understand ground temperature in the Canadian North
AuthorFraser, T A; Grasby, S EORCID logo; Witter, J B; Colpron, M; Relf, C
SourceTransactions of the 2018 Geothermal Resources Council Annual Meeting & Expo Presentations; Geothermal Resources Council, Transactions vol. 42, 2018 p. 1451-1470
LinksOnline - En ligne (presentation-présentation)
Alt SeriesNatural Resources Canada, Contribution Series 20180136
PublisherGeothermal Resources Council
Meeting2018 Geothermal Resources Council Annual Meeting & Expo Presentations; Reno, NV; US; October 14-17, 2018
Mediapaper; CD-ROM; digital
File formatpdf
NTS105B/05; 105B/06; 105B/11; 105B/12; 105B/13; 105B/14; 105C/05; 105C/06; 105C/07; 105C/08; 105C/09; 105C/10; 105C/11; 105C/12; 105C/13; 105C/14; 105C/15; 105C/16; 105D/05; 105D/06; 105D/07; 105D/08; 105D/09; 105D/10; 105D/11; 105D/12; 105D/13; 105D/14; 105D/15; 105D/16; 105E; 105F; 105G/03; 105G/04; 105G/05; 105G/06; 105G/11; 105G/12; 105G/13; 105G/14; 105J/03; 105J/04; 105K/01; 105K/02; 105K/03; 105K/04; 105L/01; 105L/02; 105L/03; 105L/04; 115A/08; 115A/09; 115A/16; 115H/01; 115H/08; 115H/09; 115H/16; 115I/01
AreaWhitehorse; Takhini Hotspring; Ross River
Lat/Long WENS-136.5000 -131.0000 62.3333 60.3333
Subjectsgeophysics; regional geology; structural geology; surficial geology/geomorphology; energy resources; geothermal energy; geothermal potential; geothermal research; geothermal resources; ground temperatures; wells; geothermal gradient; thermal gradients; bedrock geology; lithology; igneous rocks; intrusive rocks; granites; structural features; faults; faults, strike-slip; faults, thrust; radiogenic heat; thermal springs; groundwater temperatures; intrusions; plutons; permafrost; curie point; heat flow; Paleogene; Canadian Cordillera; Takhini Hotspring; Tintina Fault; Whitehorse Trough; Stikinia Terrane; Yukon-Tanana Terrane; Cassiar Platform; Carmacks Group; Tintina Trench; Phanerozoic; Cenozoic; Quaternary; Tertiary; Mesozoic; Cretaceous
Illustrationsgeoscientific sketch maps; profiles; bar graphs; photographs
ProgramGeoscience for New Energy Supply (GNES) Geothermal Energy
Released2018 10 01
AbstractAs part of the Canadian government's commitment to establishing clean energy in the North, the Yukon Geological Survey is collecting subsurface temperature data near communities in the southern part of the territory. The research is a collaborative effort among federal and territorial geoscientists, universities, First Nation governments, and geothermal consultants. A major goal of the project is to determine whether ground temperatures warrant further geothermal exploration in the territory. The study also presents an opportunity for Yukon Geological Survey to educate the public about geothermal energy. This paper summarizes the geothermal research conducted since 2016. In 2016-2017, existing geoscience data were compiled to determine: a) geothermal gradients and depths of thermal inversions; b) regional depths to Curie Point; c) distribution of Cretaceous and younger magmatic rocks; and d) potential heat production from gamma-radioactivity in those granites. In 2017, a 500 m temperature gradient well was drilled in the Whitehorse area, near Takhini Hot Springs, where surface water is 46°C. In 2018, a temperature gradient well was drilled to 497 m in the Tintina fault system, near Ross River. Results to date suggest further drilling in the Takhini Hot Springs area is warranted to better characterize ground temperature below 500 m depth, and that further exploration along the Tintina fault near Faro is warranted. The regional compilations have identified a number of areas where temperature gradient wells should be considered.
Summary(Plain Language Summary, not published)
A cooperative study between the GSC, Yukon Geological Survey, First Nations, University of Alberta and private industry has focused on defined geothermal energy potential for the Yukon Territory. Results of work to date are summarised showing regions with higher potential that will be the focus of more detailed future research. Results will support future exploration and development of this clean and renewable energy resource to support remote northern communities.

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