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TitleVolcanogenic massive sulphide deposits of the Archean, Noranda District, Quebec
AuthorGibson, H L; Galley, A G
SourceMineral deposits of Canada: a synthesis of major deposit-types, district metallogeny, the evolution of geological provinces, and exploration methods; by Goodfellow, W D (ed.); Geological Association of Canada, Mineral Deposits Division, Special Publication no. 5, 2007 p. 533-552
Year2007
Alt SeriesEarth Sciences Sector, Contribution Series 20070205
PublisherGeological Association of Canada, Mineral Deposits Division (St. John's, NL, Canada)
Documentserial
Lang.English
Mediapaper; DVD
RelatedThis publication is contained in Goodfellow, W D; (2007). Mineral deposits of Canada: a synthesis of major deposit-types, district metallogeny, the evolution of geological provinces, and exploration methods, Geological Association of Canada, Mineral Deposits Division, Special Publication no. 5
File formatpdf
ProvinceQuebec
NTS32D/05
AreaNoranda
Lat/Long WENS -79.5000 -79.0000 48.5000 48.2500
Subjectseconomic geology; metallic minerals; mineral occurrences; mineral deposits; mineralization; volcanogenic deposits; sulphides; sulphide deposits; zinc; copper; gold; silver; molybdenum; porphyry deposits; porphyry copper; porphyries; igneous rocks; volcanic rocks; felsic volcanic rocks; volcaniclastics; andesites; rhyolites; Archean; lithofacies; base metals; metals; base metal deposits; alteration; mineral distribution; mineral potential; Noranda Formation; Blake River Group; Abitibi Subprovince; Noranda Cauldron; Precambrian
Illustrationssketch maps; tables; photographs; block diagrams; cross-sections
ProgramConsolidating Canada's Geoscience Knowledge
ProgramTargeted Geoscience Initiative (TGI-3), 2005-2010
AbstractThe Noranda mining district is one of Canada's nation builders, having been the key for opening up northern Quebec for economic expansion and regional development. Over an 85-year period, 20 economic volcanogenic massive sulphide (VMS) deposits have been discovered by prospecting, geological, geophysical and lithogeochemical techniques. Besides VMS deposits, the Noranda District is also host to 19 orogenic Au deposits and several intrusion-hosted Cu-Mo deposits and occurrences. VMS deposits of the Noranda District occur in the Noranda formation of the Archean Blake River Group of the Abitibi Subprovince. The majority of deposits are hosted within the Noranda Cauldron, an asymmetric volcanic depression filled with effusive basalt and basaltic andesite flows and subordinate rhyolite flowdome complexes. The Noranda Cauldron is floored by a large, multiphase subvolcanic intrusive complex that is hypothesized to be the heat engine responsible for development of much of the VMS and porphyry mineralization in the district. The VMS deposits are hosted by two distinct lithofacies, flow and volcaniclastic, where volcaniclastic includes primary pyroclastic deposits, and those that are re-deposited and syneruptive. Of the 20 past producing VMS deposits, 17 are hosted by flows (8 with mafic and 9 with felsic flows) whereas volcaniclastic rocks host the Horne, Bouchard-Hebert and Corbet deposits. The largest massive sulphide deposits occur within the felsic volcaniclastic strata at the margins of or directly overlying the Noranda Cauldron.

The Noranda VMS deposits typify the bimodal-mafic type, where the majority of the host stratigraphy is composed of a mafic volcanic flow succession in which discrete felsic dome complexes are situated over major synvolcanic faults. These fault systems are also defined within the Noranda Cauldron by discrete dyke swarms originating from the underlying subvolcanic intrusive complex. The inferred primitive rifted arc environment typical of this deposit-type is best characterized by a large volcanic edifice within the present-day Kermadec and Tonga-Fiji suprasubduction tectonic zone of the western Pacific.
GEOSCAN ID224194