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TitleModélisation pétrogénétique des gîtes d'oxydes de fer à cuivre-or comme outil d'exploration dans les terrains de haut-grade métamorphique : application à la zone de Parent (Haute-Mauricie, Quebec)
AuthorTrapy, P H; Gervais, F; Corriveau, LORCID logo; Moukhsil, A
SourceÉnergie et ressources naturelles du Québec, Manuscrits bruts 2015-05, 2015, 54 pages Open Access logo Open Access
LinksOnline - En ligne
Alt SeriesEarth Sciences Sector, Contribution Series 20150049
PublisherMinistère de l'Énergie et des Ressources du Québec
MeetingQuébec Mines 2014; Québec; CA; November 17- 20, 2014
Mediapaper; on-line; digital
File formatpdf
NTS32B; 31O
Lat/Long WENS -75.0000 -74.0000 48.2500 47.5000
Subjectsgeneral geology; geochemistry; metallic minerals; modelling; alteration; granulites; pressure-temperature conditions; mineralization; metallic oxides; gold; copper; iron oxides; Grenville Province
Illustrationslocation maps; graphs; geological sketch maps; photomicrographs; diagrams; photographs
ProgramGEM2: Geo-mapping for Energy and Minerals Hudson/Ungava Core Zone
AbstractThe growing interest for exploring hydrothermal iron-copper-gold (IOCG) deposits in high-grade metamorphic terrains requires the development of new exploration tools. In non-metamorphic terrains, IOCG deposits are characterized by intense hydrothermal alteration that profoundly changes the composition of the precursor rocks and leads to diagnostic mineral assemblages and a regular series of alteration types. The chemical compositions of these rocks are not dependent on their protoliths and once metamorphosed they should produce distinctive assemblages. We present preliminary results of equilibrium metamorphic modeling to predict mineralogical assemblages at upper amphibolite and granulite facies for different types of hydrothermal alteration. Modeling results will then be compared with assemblages observed in rocks in the area of the Gouin Reservoir in the Grenville Province. It is expected that the results of this PhD project will provide a solid foundation for the development of effective exploration tools for IOCG type in the Grenville Province in Quebec.
Summary(Plain Language Summary, not published)
This abstract reports modelling of rock attributes of diagnostic units within multiple metals iron oxide copper-gold deposits if they were entrained in mountain building and transformed into high-temperature and high-pressure metamorphic rocks. This project is fully funded by the Québec Ministère de l¿Énergie et des Ressources naturelles and kills two birds with one stone through a co-direction of a PhD study at École Polytechnique by Dr. Corriveau and testing of some of her long-matured ideas on metamorphosed hydrothermal ore deposits. The test-case is in south-western Québec but will support field activities in the Labrador Trough high-grade metamorphic terranes as well as within the Core Zone to re-examine the potential for IOCG and affiliated deposits of these GEM2 Hudson-Ungava project regions during FY 2015-2016. Ultimately the study will support GEM2 and the Québec Ministère de l¿Énergie et des Ressources naturelles goal of providing a renewed framework for mineral resources development in the Labrador Trough and adjacent Core Zone.

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