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TitleHydrothermal alteration and vectors at the orogenic Island Gold deposit, Michipicoten Greenstone Belt, Wawa, Ontario
DownloadDownload (whole publication)
LicencePlease note the adoption of the Open Government Licence - Canada supersedes any previous licences.
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 logo Open Access
PublisherNatural Resources Canada
Documentopen file
Mediaon-line; digital
RelatedThis publication is contained in Targeted Geoscience Initiative: 2017 report of activities, volume 1
RelatedThis publication is related to Whole-rock lithogeochemistry of the Archean Island gold deposit, Ontario
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; 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.
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.

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