| Title | New geological insights into the Carmacks Copper Cu-Au-Ag deposit, central Yukon (Yukon MINFILE 115I 008) |
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| Author | Kovaks, N; Allan, M M; Zagorevski, A ; Milton, J E; Hart, C J R |
| Source | Yukon Geological Survey, Yukon Exploration and Geology no. 2016, 2016 p. 117-140  Open Access |
| Links | Online - En ligne
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| Image |  |
| Year | 2016 |
| Alt Series | Earth Sciences Sector, Contribution Series 20160318 |
| Publisher | Yukon Geological Survey |
| Document | serial |
| Lang. | English |
| Media | paper; on-line; digital |
| File format | pdf |
| Province | Yukon |
| Area | Carmacks |
| Lat/Long WENS | -137.0000 -136.0000 62.7333 62.0000 |
| Subjects | general geology; copper; mineral deposits; mineralization; metamorphic environment; metamorphic rocks; sulphides; partial melting; bornite; chalcopyrite; Carmacks Copper deposit; Granite Mountain
batholith; Jurassic |
| Illustrations | location maps; geological sketch maps; photographs; photomicrographs; diagrams |
| Program | GEM2: Geo-mapping for Energy and Minerals Western Cordillera, Regional porphyry transitions |
| Released | 2016 01 01 |
| Abstract | The Carmacks Copper Cu-Au-Ag deposit is hosted in compositionally heterogeneous, foliated and folded, and variably migmatitic metamorphic rocks, which occur as elongate, NNW-trending inliers in Early
Jurassic granitoid rocks of the Granite Mountain batholith. Hypogene copper mineralization is restricted to metamorphic host rocks, and occurs both as foliation-parallel chalcopyrite-dominant stringers in schistose rocks, and as net-textured
bornite-chalcopyrite-dominant sulphides in the migmatitic rocks prevalent along the eastern margin of the largest metamorphic inlier. The latter style of mineralization is interpreted to originate from a sulphide melt phase generated during partial
melting of a previously mineralized protolith, during emplacement of the Granite Mountain batholith. |
| Summary | (Plain Language Summary, not published)
This report presents preliminary results and models developed through GEM2 program on volcanic and plutonic rocks in Yukon. It details the age and
characteristics of magmatic rocks and associated mineralization on the basis of field and laboratory analyses. The results presented herein help progress GEM2 model to ultimately redefine the regional tectonic models of the Cordillera. |
| GEOSCAN ID | 299642 |
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