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TitleHydrothermal alteration and vectors at the orogenic Island Gold deposit, Michipicoten Greenstone Belt, Wawa, Ontario
DownloadDownload (whole publication)
AuthorCiufo, T J; Yakymchuk, C; Lin, S; Jellicoe, K; 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. 117-120, (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
RelatedThis publication is related to Ciufo, T J; Mercier-Langevin, P; Yakymchuk, C; Lin, S; Bécu, V; Lauzière, K; (2019). Whole-rock lithogeochemistry of the Archean Island gold deposit, Ontario, Geological Survey of Canada, Open File 8524
File formatpdf
AreaGoudreau-Lochalsh Gold District; Wawa
Lat/Long WENS -84.4833 -84.3167 48.3500 48.2667
Subjectseconomic geology; tectonics; geochemistry; geochronology; mineral deposits; mineral exploration; mineral potential; gold; ore mineral genesis; ore controls; greenstone belts; fluid dynamics; tectonic history; mineralization; hydrothermal alteration; silicification; metamorphism; greenschist facies; deformation; intrusions; quartz veins; bedrock geology; structural features; shear zones; lithology; igneous rocks; volcanic rocks; intrusive rocks; diabases; granodiorites; syenites; gabbros; sedimentary rocks; iron formations; geochemical analyses; isotopic studies; petrographic analyses; radiometric dating; uranium lead dating; zircon dates; Archean; Superior Province; Wawa Subprovince; Michipicoten Greenstone Belt; Island Gold Deposit; Island Gold Mine; Magino Mine; Edwards Mine; Cline Mine; Kremzar Mine; Richmond Property; Goudreau Lake Deformation Zone; Webb Lake Stock; ore systems approach; orogenic gold deposits; Precambrian
Illustrationsgeoscientific 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 orogenic Island Gold deposit, located in the Michipicoten greenstone belt, is part of the Goudreau-Lochalsh gold district. Preliminary results indicate that gold is hosted in multiple subparallel mineralized zones along well-defined shear zones that generally strike east-northeast with a steep southerly dip. The alteration envelope is a combination of silicification, sericitization, carbonatization, pyritization and chloritization. Quartz "flooding" (silicification) as well as quartz veins are often present at the core of these alteration envelopes and commonly contain visible gold. Alteration quickly decreases in intensity away from the veins and deformation corridors. Ongoing work aims at further characterizing the alteration styles and compare with other orogenic gold deposits and at constraining the source of the gold-bearing fluid and conditions of gold mineralization. Achieving these objectives will aid in exploration efforts to expand resources and find new deposits as well as contribute to the understanding of orogenic gold deposits.