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TitleDeformation history of the Black Bay Fault and associated mineralization: examples from Saskatchewan and southern Northwest Territories
AuthorJamison, D; Acosta Góngora, P; Lin, S
SourceSaskatchewan Geological Survey Open House 2016, abstract volume; Saskatchewan Geological Survey, Miscellaneous Report 2016-5, 2016 p. 39 Open Access logo Open Access
LinksOnline - En ligne (complete volume - volume complet, PDF, 38.2 MB)
Alt SeriesNatural Resources Canada, Contribution Series 20190510
PublisherGovernment of Saskatchewan
MeetingSaskatchewan Geological Survey Open House 2016; Saskatoon, SK; CA; November 28-30, 2016
Mediaon-line; digital
File formatpdf
ProvinceNorthwest Territories
NTS75B; 75G; 75H
AreaDymond Lake; Labyrinth Lake; Tazin River
Lat/Long WENS-108.0000 -104.5000 62.0000 60.0000
Subjectsgeophysics; tectonics; economic geology; bedrock geology; structural features; faults; folds; lithology; igneous rocks; intrusive rocks; gabbros; syenites; granites; tonalites; granodiorites; leucotonalites; diorites; pegmatites; metamorphic rocks; augen gneisses; tectonic evolution; deformation; folding; crustal uplift; intrusions; mineral deposits; mineral potential; ore mineral genesis; mineralization; hydrothermal systems; sulphides; tectonic setting; geophysical interpretations; magnetic interpretations; structural analyses; strain; fabric analysis; foliation; lineations; trend surface analyses; kinematic analysis; Black Bay Fault; Gemelo showing; Hoidas showing; Precambrian; Proterozoic
ProgramGEM2: Geo-mapping for Energy and Minerals South Rae Province Bedrock/Surficial geology
Released2016 01 01
Overall the Black Bay Fault experience four main generation of deformation, D1-4. Beginning with sinistral west side up motion, D1 produced the majority of exhumation of the BBF. D2 produced large scale folding of the Black Bay Fault resulting in the variation of the fault trace. D3 marks the onset of dextral west-side up transpression. D4 produced brittle to brittle-ductile deformation, better preserved in the south due to differential uplift along the fault. This study shows that REE mineralization along the BBF is not restricted to northern SK, and instead, similar mineralization assemblages are observed ~100 km NE into the NWT, at the Gemelo showing. Thus, the historically underestimated economic potential of the NE portion of the BBF has to be re-evaluated.

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