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TitleGeology of the Inmont (Robb-Montbray) Zone 3 stripped outcrop
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AuthorMercier-Langevin, P; Ross, P -S; Dion, C; Goutier, J; Dubé, B
SourceGeological Survey of Canada, Open File 6546, 2010, 1 sheet, https://doi.org/10.4095/285474 (Open Access)
Image
Year2010
PublisherNatural Resources Canada
Documentopen file
Lang.English
Maps1 map
Map Info.geological
Mediapaper; on-line; digital
File formatpdf; JPEG2000
ProvinceQuebec
NTS32D/06
AreaAbitibi
Lat/Long WENS-79.5000 -79.0000 48.5000 48.2500
Subjectseconomic geology; metallic minerals; mineral assemblages; mineral deposits; mineralization; mineral occurrences; base metals; gold; silver; copper; zinc; volcanogenic deposits; sulphides; sulphide deposits; igneous rocks; rhyolites; Archean; Inmont (Robb-Montbray) Mine; Precambrian
Illustrationslocation maps; photographs; plots
ProgramTargeted Geoscience Initiative (TGI-3), 2005-2010
Released2010 05 28
AbstractThis map illustrates the main alteration assemblages and facies observed on the stripped outcrop of the Zone 3 at the Inmont (Robb-Montbray) mine. The mineralization and its alteration system are emplaced within flowbanded, lobate and volcaniclastic rhyolites. The
distribution of the alteration is strongly controlled by the volcanic facies and structures with fracture-controlled chlorite veins and diffuse quartz, sericite and chlorite gradually replacing or invading the lobe contacts, the flowbanded rhyolite, and the volcaniclastic rhyolite. This architecture is typical of the "Noranda-type" model of volcanogenic massive sulphide systems with mostly discordant, well defined chlorite alteration pipes surrounded by diffuse sericite-chlorite and quartz alteration within flowdominated sequences.
GEOSCAN ID285474