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TitleRecognizing optimum Banded-Iron Formation-hosted gold environments in ancient, deformed and metamorphosed terranes: Preliminary results from the Meadowbank deposit, Nunavut, Canada
AuthorJanvier, V; Castonguay, S; Mercier-Langevin, P; Dubé, B; McNicoll, V; Malo, M; Pehrsson, S; Bécu, V
SourceGeological Survey of Canada, Open File 7407, 2013, 1 sheet, (Open Access)
PublisherNatural Resources Canada
Documentopen file
Mediadigital; on-line
RelatedThis publication is related to Castonguay, S; Janvier, V; Mercier-Langevin, P; Dubé, B; McNicoll, V; Malo, M; Pehrsson, S; Bécu, V; (2012). Recognizing optimum banded iron formation-hosted gold environments in ancient, deformed and metamorphosed terranes: preliminary results from the Meadowbank Deposit, Nunavut , Northwest Territories Geoscience Office, Yellowknife Geoscience Forum Abstracts Volume vol. 2012
File formatpdf
NTS56D/13NW; 56E/04SW; 66A/16NE; 66H/01SE
AreaKavallik; Goose Island; Third Portage Lake; Second Portage Lake
Lat/Long WENS-96.2500 -95.7500 65.0833 64.9167
Subjectsstructural geology; economic geology; Archean; iron formations; mineral occurrences; mineral assemblages; mineralization; gold; bedrock geology; structural interpretations; structural features; faults; folds; lithology; volcanic rocks; plutonic rocks; igneous rocks; quartzites; felsic volcanic rocks; ultramafic rocks; deformation; Meadowbank mine; Woodburn Lake Group; Precambrian; Proterozoic
Illustrationslocation maps; photographs; cross-sections
ProgramTargeted Geoscience Initiative (TGI-4), Gold Ore Systems
Released2013 05 28
Summary(Plain Language Summary, not published)
The study of the Meadowbank deposit is part of NRCan¿s Targeted Geoscience Iinitiative-4 Program that aims at improving our understanding of Canada¿s major mineral systems. Agnico-Eagle Mines¿ Meadowbank mine is located in the Kavallik region of Nunavut. Research to date has mostly been concentrated on the geological mapping of the Portage and Goose orebodies. The lithologic sequence of the deposit consists of volcaniclastic rocks, banded iron formation (BIF), ultramafic rocks and quartzite. The predominant gold mineralization is associated with pyrrhotite and pyrite, which have replaced magnetite. The ore zones are approximately 7 m wide (5 up to 40 g/t) and hosted in the BIF. Gold also is found in high-grade quartz veins in volcaniclastic rocks. Four phases of regional deformation affect the host rocks, which have been strongly metamorphosed. Targeted geochronology, structural, petrographic and geochemical analyses are underway to characterize the deposit and ultimately establish the hydrothermal footprint, timing of gold introduction and structural controls.