| Title | Geological setting of Bode copper and Damp polymetallic prospects, central Great Bear magmatic zone, Northwest Territories |
| Download | Download (whole publication) |
| |
| Licence | Please note the adoption of the Open Government Licence - Canada
supersedes any previous licences. |
| Author | Gandhi, S S; Prasad, N |
| Source | Canadian Shield/Bouclier canadien; by Geological Survey of Canada; Geological Survey of Canada, Current Research no. 1995-C, 1995 p. 201-212, https://doi.org/10.4095/202919  Open Access |
| Year | 1995 |
| Publisher | Natural Resources Canada |
| Document | serial |
| Lang. | English; French |
| Media | paper; on-line; digital |
| Related | This publication is contained in Canadian Shield
|
| File format | pdf |
| Province | Northwest Territories |
| NTS | 86C/13; 86F/04 |
| Area | Bode Lake; Swan Lake |
| Lat/Long WENS | -118.0000 -117.5000 65.2500 64.7500 |
| Subjects | structural 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 |
| Illustrations | sketch maps; photographs; analyses |
| Program | Canada-Northwest Territories Mineral Initiatives, 1991-1996 |
| Released | 1995 01 01 |
| Abstract | A 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. |
| GEOSCAN ID | 202919 |
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