| Title | Vein-hosted gold mineralization in the Wilding Lake area, central Newfoundland: structural geology and vein evolution |
| Download | Downloads |
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| Licence | Please note the adoption of the Open Government Licence - Canada
supersedes any previous licences. |
| Author | Honsberger, I W ;
Bleeker, W; Sandeman, H A I; Evans, D T W; Kamo, S L |
| 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. 172-191, https://doi.org/10.4095/326020  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 Wilding Lake gold
prospect, central Newfoundland: a lithological and structural synthesis |
| File format | pdf |
| Province | Newfoundland and Labrador |
| NTS | 12A |
| Area | Wilding Lake |
| Lat/Long WENS | -58.0000 -56.0000 49.0000 48.0000 |
| Subjects | economic geology; structural geology; tectonics; Science and Technology; Nature and Environment; mineral deposits; gold; vein deposits; mineral exploration; mineral potential; ore mineral genesis;
mineralization; ore controls; structural controls; exploration guidelines; bedrock geology; basement geology; lithology; sedimentary rocks; conglomerates; arenites; black shales; igneous rocks; volcanic rocks; volcaniclastics; felsic volcanic rocks;
mafic volcanic rocks; intrusive rocks; porphyries; granitic rocks; mafic intrusive rocks; structural features; fault zones; faults; shear zones; fractures; joints; folds; quartz veins; sulphides; tectonic setting; tectonic evolution; orogenies;
deformation; pressure; fluid flow; shearing; faulting; alteration; magmatism; intrusions; dykes, mafic; plutons; burial history; emplacement; host rocks; unconformities; field relations; kinematic analysis; mineral assemblages; foliation;
slickensides; chalcopyrite; tourmaline; models; structural analyses; Dunnage Zone; Exploits Subzone; Rogerson Lake Conglomerate; Peri-Gondwanan Realm; Victoria Lake Sear Zone; Wilding Lake Prospect; Wilding Lake Plutons; Valentine Lake Shea Zone; Red
Ochre Complex; Wood Brook Fault; Dog Bay Line; Crippleback Intrusive Suite; Valentine Lake Deposit; Ganderia; Phanerozoic; Paleozoic; Carboniferous; Devonian; Silurian; Ordovician; Cambrian; Precambrian; Proterozoic |
| Illustrations | geoscientific sketch maps; schematic cross-sections; photographs; equal-area stereonet projections; tables |
| Program | Targeted Geoscience Initiative (TGI-5) Gold ore systems |
| Released | 2020 06 11; 2023 03 17 |
| Abstract | Crustal-scale fault zones in central Newfoundland are being recognized as significant gold-mineralized structures. In particular, a northeast-trending structural corridor in the eastern Dunnage Zone
(Exploits subzone), delineated by the Rogerson Lake Conglomerate, contains highly prospective vein-hosted gold deposits. Such mineralized vein systems, exposed near Valentine Lake (Marathon Gold Corp.) and Wilding Lake (Antler Gold Inc.), are
products of progressive Paleozoic deformation and fluid-pressure cycling along crustal-scale faults that cut the Late Silurian to Early Devonian Rogerson Lake Conglomerate and underlying Neoproterozoic basement rocks. Well exposed, gold-bearing
quartz-vein systems in the Wilding Lake area reveal a kinematic history that involved a main phase of reverse sinistral shearing and subsequent transient phases of horizontal extension, oblique compression, and, at least locally, components of late
dextral strike-slip. High-grade gold mineralization is associated with siderite-ankerite-sericite alteration of the host rocks, structurally controlled quartz-vein emplacement, and supergene alteration of pyrite and chalcopyrite. Gold-bearing vein
sets contain quartz, pyrite, chalcopyrite, tourmaline, native gold, Ag-poor electrum, bismuth-silver-gold tellurides, rutile, and secondary goethite, malachite, and acanthite. Prospective gold exploration targets in the Wilding Lake area are Late
Silurian feldspar porphyry and felsic volcanic rocks overlying the Rogerson Lake Conglomerate, as well as, rheologically favourable Neoproterozoic basement granitoids that may provide a setting similar to that at Valentine Lake. |
| 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 | 326020 |
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