| Title | Textural and mineralogical characterization of a Ni-Zn-rich black shale occurrence at the Akie property, Kechika Trough, northern British Columbia, and comparison with examples from Yukon |
| Download | Download (whole publication) |
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| Licence | Please note the adoption of the Open Government Licence - Canada
supersedes any previous licences. |
| Author | Peter, J M ;
Bocking, N; Gadd, M G; Layton-Matthews, D; Johnson, N |
| Source | Targeted Geoscience Initiative: 2017 report of activities, volume 1; by Rogers, N (ed.); Geological Survey of Canada, Open File 8358, 2018 p. 207-216, https://doi.org/10.4095/306476  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 | 94E; 94F; 94G; 94I; 94J; 94K; 94L; 94M; 94N; 94O; 94P; 95; 96B; 96C; 96D; 96E; 96F; 96L; 104I; 104O; 104P; 105; 106A; 106B; 106C; 106D; 106E; 106F; 106G; 106H; 106I; 106J; 106K; 106L; 115I; 115N; 115O; 115P;
116A; 116B; 116C; 116F; 116G; 116H; 116I; 116J; 116K |
| Area | Gataga District; Peel River |
| Lat/Long WENS | -141.0000 -120.0000 67.0000 57.0000 |
| Subjects | economic geology; mineralogy; stratigraphy; geochemistry; mineral deposits; mineral exploration; mineral potential; metals; nickel; zinc; molybdenum; sulphides; sedimentary ore deposits; stratiform
deposits; ore mineral genesis; mineralization; ore controls; sedimentary basins; geological history; tectonic history; bedrock geology; lithology; sedimentary rocks; shales; black shales; carbonates; limestones; siltstones; debris flow deposits;
igneous rocks; volcanic rocks; clasts; structural features; faults; faults, thrust; folds; anticlines; synclines; lineaments; drillholes; textural analyses; thin section microscopy; scanning electron microscope analyses; bulk composition; Kechika
Trough; Selwyn Basin; Akie Deposit; Richardson Trough; Mackenzie Platform; Nick Deposit; Peel River Deposit; Eagle Plains Deposit; Monster River Deposit; Cardiac Creek Deposit; Ancestral North America; Earn Group; Warneford Formation; Akie
Formation; Gunsteel Formation; Road River Group; Kechika Group; Phanerozoic; Paleozoic; Devonian; Silurian; Ordovician; Cambrian |
| Illustrations | geoscientific sketch maps; schematic cross-sections; photographs; photomicrographs |
| Program | Targeted Geoscience Initiative (TGI-5) Knowledge Management Coordination |
| Program | Targeted Geoscience Initiative (TGI-5) Volcanic and sedimentary systems |
| Released | 2018 01 19 |
| Abstract | Hyper-enriched black shales (HEBS) that are enriched in Ni, Zn, Mo, and other elements occur within the Devonian strata of Yukon over 100s to 1000s km2. The mineralization is typically up to several
tens of centimetres thick. Recently, during exploration for SEDEX deposits, mineralization that is potentially analogous (and time-stratigraphically equivalent) to HEBS mineralization in Yukon was discovered in the Kechika Trough of northeastern
British Columbia. Here, about 3 to 20 m stratigraphically below the SEDEX mineralization of the Cardiac Creek deposit, an approximately 2 to 20 cm thick stratiform horizon hosts sphalerite, chalcopyrite, millerite, gersdorffite, clausthalite,
pentlandite and pyrite within Devonian black, carbonaceous shale. This mineralization is strikingly similar in broad stratigraphic age, metal enrichments, textures and mineralogy to HEBS localities in Yukon. Based on these similarities, this
mineralization likely was formed at a discrete time interval, over a wide area (likely 1000s km2) within the Selwyn Basin and the adjacent carbonate platform. This has implications for any genetic and exploration model(s) for this style of
mineralization. |
| 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 | 306476 |
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