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TitleStructural controls and relative timing of events at the orogenic Island Gold deposit, Michipicoten Greenstone Belt, Wawa, Ontario
DownloadDownload (whole publication)
AuthorJellicoe, K M; Lin, S; Ciufo, T J; Yakymchuk, C; Mercier-Langevin, P
SourceTargeted Geoscience Initiative: 2017 report of activities, volume 1; by Rogers, N (ed.); Geological Survey of Canada, Open File 8358, 2018 p. 113-116, (Open Access)
PublisherNatural Resources Canada
Documentopen file
Mediaon-line; digital
RelatedThis publication is contained in Rogers, N; (2018). Targeted Geoscience Initiative: 2017 report of activities, volume 1, Geological Survey of Canada, Open File 8358
File formatpdf
Lat/Long WENS -84.4667 -84.4000 48.3167 48.2500
Subjectseconomic geology; tectonics; structural geology; mineral deposits; mineral exploration; mineral potential; gold; ore mineral genesis; ore controls; structural controls; greenstone belts; modelling; tectonic history; mineralization; metamorphism; deformation; foliation; shearing; emplacement; intrusions; veins; veinlets; dykes; bedrock geology; structural features; folds; lithology; metavolcanic rocks; igneous rocks; volcanic rocks; sedimentary rocks; iron formations; intrusive rocks; structural interpretations; fabric analyses; geometric analyses; Archean; Superior Province; Wawa Subprovince; Michipicoten Greenstone Belt; Island Gold Deposit; Island Gold Mine; Magino Mine; Goudreau Lake Deformation Zone; Webb Lake Stock; Matachewan Dykes; Michipicoten Iron formation; ore systems approach; orogenic gold deposits; Precambrian
Illustrationslocation maps; geoscientific sketch maps; photographs
ProgramTargeted Geoscience Initiative (TGI-5), Knowledge Management Coordination
ProgramTargeted Geoscience Initiative (TGI-5), Gold systems
ProgramNSERC Natural Sciences and Engineering Research Council of Canada
Released2018 01 19
AbstractThe Goudreau Lake Deformation Zone (GLDZ) transects the Michipicoten greenstone belt and hosts multiple gold deposits, most notably the Island Gold deposit. This structural study aims to determine the deformation history of the deposit and surrounding area, and to improve current exploration models. The GLDZ strikes east-northeast, subparallel to regional stratigraphy and foliation, and is centred along the contact of two metavolcanic assemblages. The Island Gold deposit is located in the southern metavolcanic assemblage, to the south of the trondhjemitic Webb Lake Stock. The main Island Gold deposit forms a mineralized corridor comprising steeply south-dipping ore zones. The Goudreau zone occurs to the north of the main deposit and contains tightly folded sub-horizontal ore veins. Two generations of deformation and multiple vein generations have been identified in the study area on the basis of overprinting and cross-cutting relationships. Mineralization is interpreted to have occurred during D1 sinistral north-side-up transpression.