| Title | New insights into the geological evolution and economic potential of the Thelon tectonic zone and western Rae craton, Nunavut |
| Download | Downloads |
| Author | Berman, R G; Nadeau, L; Davis, W J; McCurdy, M W; Craven, J A; McMartin, I; Whalen, J B; Sanborn-Barrie, M; Carr, S; Pehrsson, S J; Percival, J A; Girard, É |
| Source | Geological Survey of Canada, Open File 7901, 2015, 1 sheet, https://doi.org/10.4095/296719 (Open Access) |
| Image |  |
| Year | 2015 |
| Publisher | Natural Resources Canada |
| Document | open file |
| Lang. | English |
| Media | on-line; digital |
| File format | pdf |
| Province | Nunavut |
| NTS | 66E; 66F; 66G; 66H; 66I; 66J; 66K; 66L; 76H; 76I |
| Lat/Long WENS | -106.0000 -95.0000 68.0000 65.0000 |
| Subjects | stratigraphy; geophysics; structural geology; geochemistry; geochronology; economic geology; tectonics; bedrock geology; analytical methods; glacial deposits; structural interpretations; mineral
potential; geophysical interpretations; magnetic anomalies; magnetotelluric interpretations; metamorphism; base metals; till geochemistry; copper; nickel; lithology; metamorphic facies; amphibolite facies; stream sediment geochemistry; gold; silver;
ultramafic rocks; volcanic rocks; Thelon Tectonic Zone; Queen Maud block; Rae craton; Slave Province; Chantrey fault; Precambrian; Proterozoic |
| Illustrations | location maps; photographs; analyses |
| Program | Rae Province, Chantrey-Thelon, GEM2: Geo-mapping for Energy and Minerals |
| Released | 2015 08 04 |
| Summary | (Plain Language Summary, not published)
This report presents preliminary results of a new GEM-2 project in western Nunavut aimed at gaining new understanding of the crustal architecture and its
control on areas of high mineral potential. The report documents eight distinct geological domains, three of which host precious and/or base metal anomalies. Geochronological results reveal a new age of Paleoproterozoic ultramafic-mafic volcanism
(1950 Ma) that is interpreted as the source of silver and base metal anomalies. Gold appears associated with newly recognized iron formation within a plutonic belt separating old (Mesoarchean) crustal blocks. New geochemistry and magnetotelluric data
are consistent with the Thelon tectonic zone forming during multiple collisions separated by a transient period of extension and mafic volcanism. |
| GEOSCAN ID | 296719 |
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