| Title | Gold along Cordilleran faults: Key characteristics and analogies between Phanerozoic and Archean settings |
| Download | Download (whole publication) |
| |
| Licence | Please note the adoption of the Open Government Licence - Canada
supersedes any previous licences. |
| Author | Castonguay, S ;
Ootes, L; Mercier-Langevin, P; Devine, F |
| Source | Targeted Geoscience Initiative: 2017 report of activities, volume 1; by Rogers, N (ed.); Geological Survey of Canada, Open File 8358, 2018 p. 139-145, https://doi.org/10.4095/306460  Open Access |
| Year | 2018 |
| Publisher | Natural Resources Canada |
| Document | open file |
| Lang. | English |
| Media | on-line; digital |
| Related | This publication is contained in Targeted Geoscience
Initiative: 2017 report of activities, volume 1 |
| File format | pdf |
| Province | British Columbia; Yukon |
| NTS | 104M/08; 104M/09; 104M/10; 104M/15; 104N/12; 105D/03; 105D/04; 105D/05; 105D/06 |
| Area | Tagish Lake; Tally-Ho Mountain; Gold Hill; Mount Hodnett |
| Lat/Long WENS | -135.2500 -133.7500 60.5000 59.2500 |
| Subjects | economic geology; structural geology; tectonics; mineral deposits; mineral potential; mineral exploration; ore mineral genesis; ore controls; structural controls; gold; vein deposits; epithermal
deposits; polymetallic ores; mesothermal deposits; skarn deposits; tectonic evolution; tectonic setting; faulting; magmatism; intrusions; mineralization; bedrock geology; lithology; igneous rocks; intrusive rocks; volcanic rocks; metamorphic rocks;
structural features; faults; shear zones; modelling; Archean; Canadian Cordillera; Llewellyn Fault; Tally Ho Shear Zone; Engineer Mine; Mount Skukum Mine; Bennett Plateau; Intermontane Belt; Coast Belt; Phanerozoic; Cenozoic; Tertiary; Mesozoic;
Cretaceous; Jurassic; Triassic; Paleozoic; Precambrian; Proterozoic |
| Illustrations | location maps; geoscientific sketch maps; photographs |
| Program | Targeted Geoscience Initiative (TGI-5) Knowledge Management Coordination |
| Program | Targeted Geoscience Initiative (TGI-5) Gold systems |
| Released | 2018 01 19 |
| Abstract | Several gold deposits and prospects in the Canadian Cordillera of British Columbia and Yukon are associated, at least spatially, to major fault zones. The Llewellyn fault and Tally Ho shear zone region
of northwestern British Columbia and southern Yukon is the locus of a series of vein-hosted gold prospects and deposits, including the past-producing Engineer and Mount Skukum mines. Many of these gold occurrences have epithermal polymetallic
signatures, although some are considered mesothermal-orogenic, as such related to first-order crustal breaks and synchronous magmatism. However, the temporal and genetic relationships between the orogenic- and epithermal-style systems along the
Llewellyn fault and Tally Ho shear zone remain to be clearly established. Reconnaissance work has underlined a three-part relationship between these large-scale structures, gold mineralization and Eocene magmatic complexes. Characterization of
Llewellyn fault zone in the Bennett Plateau and Tagish Lake area of British Columbia, and of the Tally Ho shear zone in the Tally Ho Mountain, Gold Hill and Mount Hodnett areas of Yukon, and of their spatially associated gold mineralization, aims to
test this model and ultimately draw comparisons with the much older, structurally controlled gold deposits of the Archean and Paleoproterozoic. |
| Summary | (Plain Language Summary, not published)
The Targeted Geoscience Initiative (TGI) is directed towards providing next generation knowledge and methods to facilitate more effective targeting of
buried mineral deposits. The program aims to enhance the effectiveness of exploration for Canada¿s major mineral systems by resolving foundational geoscience problems that constrain the geological processes responsible for the liberation metals from
their source region, transportation of these ore metals and control their eventual deposition. TGI supports projects on gold, Ni-Cr-PGE, porphyry-style mineralization, uranium and volcanic- and sedimentary-hosted base metal mineralization ore
systems, with each project divided into subprojects focused on resolving specific knowledge gaps by integrating data and studies from multiple sites across Canada. Herein, we present interim results and interpretations from a selection of the
research activities currently being conducted under the auspices of TGI. |
| GEOSCAN ID | 306460 |
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