| Title | Neoproterozoic-hosted Carlin-type mineralization in central Yukon, part 1: regional- to prospect-scale geological controls |
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| Licence | Please note the adoption of the Open Government Licence - Canada
supersedes any previous licences. |
| Author | Pinet, N; Sack, P; Mercier-Langevin, P; Colpron, M; Lavoie, D ; Dubé, B; Brake, V I |
| Source | Targeted Geoscience Initiative 5: contributions to the understanding of Canadian gold systems; by Mercier-Langevin, P (ed.); Lawley, C J M (ed.); Castonguay, S (ed.); Geological Survey of Canada, Open File 8712, 2020 p. 281-297, https://doi.org/10.4095/326045  Open Access |
| Image |  |
| Year | 2020 |
| Publisher | Natural Resources Canada |
| Document | open file |
| Lang. | English |
| Media | on-line; digital |
| Related | This publication is contained in Targeted Geoscience
Initiative 5: contributions to the understanding of Canadian gold systems |
| Related | This publication is related to the
following publications |
| File format | pdf |
| Province | Yukon |
| NTS | 105J; 105K; 105L; 105M; 105N; 105O; 106B; 106C; 106D; 106E; 106F; 106G; 106J; 106K; 106L; 106M; 106N; 106O; 107A; 107B; 115I; 115J; 115K; 115N; 115O; 115P; 116; 117A; 117B |
| Lat/Long WENS | -141.0000 -130.0000 69.0000 62.0000 |
| Subjects | economic geology; tectonics; regional geology; structural geology; stratigraphy; geophysics; Science and Technology; Nature and Environment; mineral deposits; gold; sedimentary ore deposits; ore mineral
genesis; mineralization; ore controls; structural controls; models; mineral exploration; exploration guidelines; drillholes; tectonic setting; orogenesis; magmatism; burial history; hydrothermal systems; fluid flow; traps; veins; bedrock geology;
lithology; sedimentary rocks; limestones; siltstones; shales; dolostones; diamictites; mudstones; igneous rocks; intrusive rocks; gabbros; structural features; faults; faults, thrust; faults, extension; faults, reverse; faults, normal; faults,
transform; folds; anticlines; synclines; fractures; bedding planes; geophysical interpretations; magnetic interpretations; total field magnetics; gravity interpretations; bouguer gravity; seismic interpretations; seismic velocities; anomalies;
lithostratigraphy; geometric analyses; Canadian Cordillera; Neoproterozoic; Nadaleen Trend; Ogilvie Platform; Selwyn Basin; Dawson Fault; Rackla Group; Nadaleen Formation; Gametrail Formation; Blueflower Formation; Tintina Fault; Mackenzie River
Magnetic Anomaly; Richardson Fault Array; Kathleen Lakes Fault; Conrad Prospect; Sunrise Prospect; Anubis Prospect; Nadaleen Fault; Rackla Belt; Hay Creek Group; Osiris Fault; Old Cabin Formation; Algae Formation; Ice Brook Formation; Phanerozoic;
Mesozoic; Cretaceous; Paleozoic; Carboniferous; Devonian; Ordovician; Precambrian; Proterozoic |
| Illustrations | tables; geoscientific sketch maps; geochronological charts; location maps; flow diagrams; geophysical profiles; cross-sections; lithologic sections; equal-area stereonet projections; plots;
photographs; 3-D diagrams |
| Program | Targeted Geoscience Initiative (TGI-5) Gold ore systems |
| Released | 2020 06 11; 2023 03 17 |
| Abstract | In central Yukon, sediment-hosted gold mineralized zones have similar characteristics to Carlin-type deposits in Nevada. However, it remains unclear if exploration models applied to the southwest United
States similarly apply to the Canadian Cordillera. This contribution tackles that knowledge gap by reviewing the regional- to prospect-scale setting of mineralized zones found in the Nadaleen trend, Yukon. Carlin-type gold-bearing zones in central
Yukon are located near the boundary between the Ogilvie platform to the northeast and the Selwyn Basin to the southwest. This shelf-to-basin transition is marked in part by the Dawson fault, which is likely a long-lived, deep-seated structure that
influenced sedimentation and younger structural history. Gold-mineralized zones are mainly hosted in two Neoproterozoic limestone units (informally known as the Conrad and Osiris limestones of the Nadaleen and Gametrail formations, respectively) and
in Paleozoic siltstones. In the Nadaleen trend, the structural style is complex; the strata generally dip more steeply than in classic fold-and-thrust belts and faults bear a significant strike-slip component. Neoproterozoic-hosted gold ore zones are
mostly concordant with bedding in complexly shaped anticlines. Gold mineralization is significantly younger than the main intrusion-related gold mineralizing event in the northern Selwyn Basin. |
| Summary | (Plain Language Summary, not published)
The main objective of phase 5 (2015-2020) of Natural Resources Canada and Geological Survey of Canada's Targeted Geoscientific Initiative (TGI) program
was to generate new knowledge, methodologies and models to enhance the exploration industry's ability to detect buried ore deposits. This synthesis volume contains 20 individual papers that discuss craton to deposit-scale characteristics of
auriferous deposits, plus some support material pertaining to the TGI-5 Gold project. |
| GEOSCAN ID | 326045 |
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