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TitleGeological setting of Bode copper and Damp polymetallic prospects, central Great Bear magmatic zone, Northwest Territories
DownloadDownload (whole publication)
LicencePlease note the adoption of the Open Government Licence - Canada supersedes any previous licences.
AuthorGandhi, S S; Prasad, N
SourceCanadian Shield/Bouclier canadien; by Geological Survey of Canada; Geological Survey of Canada, Current Research no. 1995-C, 1995 p. 201-212, Open Access logo Open Access
PublisherNatural Resources Canada
Lang.English; French
Mediapaper; on-line; digital
RelatedThis publication is contained in Canadian Shield
File formatpdf
ProvinceNorthwest Territories
NTS86C/13; 86F/04
AreaBode Lake; Swan Lake
Lat/Long WENS-118.0000 -117.5000 65.2500 64.7500
Subjectsstructural geology; metallic minerals; lithology; volcanic rocks; basalts; andesites; rhyolites; igneous rocks; mineral deposits; structural trends; shear zones; structural features; dacites; pyrite; chalcopyrite; sulphides; copper; mineralization; rhyodacites; polymetallic ores; uraninite; analyses; major element analyses; geochemical analyses; mineral occurrences; Great Bear Magmatic Zone; Damp Prospect; Bode Prospect; Proterozoic
Illustrationssketch maps; photographs; analyses
ProgramCanada-Northwest Territories Mineral Initiatives, 1991-1996
Released1995 01 01
AbstractA dacite-rhyodacite assemblage containing some basalt, andesite, rhyolite and sedimentary rocks, underlies a 30 x 15 km area between Isabella and Longtom lakes. It is intruded by related porphyries and younger granitic plutons. The volcanic assemblage is lithologically comparable with, and lies on the regional trend of, the LaBine Group 50 km to the north-northwest at Great Bear Lake, and belongs to the 1.87-1.84 Ga old Great Bear magmatic zone. The Bode copper prospect near Isabella Lake to the south is in an east-trending shear zone in dacite, and contains pyrite-chalcopyrite aggregates and disseminations, with minor quartz and bornite. The Damp prospect at the northern tip of the assemblage is hosted by a breccia zone in rhyodacite, containing magnetite-hematite as matrix, and pyrite, chalcopyrite, cobalt-nickel sulphides and uraninite. It is regarded as an example of an Olympic Dam-type deposit.

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