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TitleÉtude pétrographique de l'intrusion ultramafique chromitifère du lac des Montagnes, Baie-James, Québec
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AuthorBédard, M P; Houlé, M G; Hébert, R; Goutier, J
SourceGeological Survey of Canada, Scientific Presentation 55, 2017, 1 sheet, https://doi.org/10.4095/299839
Year2017
PublisherNatural Resources Canada
Documentserial
Lang.French
Mediaon-line; digital
File formatpdf
ProvinceQuebec
NTS32O/12NW; 32O/12NW
AreaLac des Montagnes; Lac Valiquette; Némiscau
Lat/Long WENS -75.9583 -75.9333 51.6333 51.6167
Subjectseconomic geology; stratigraphy; mineral deposits; chromite; bedrock geology; lithology; igneous rocks; intrusive rocks; ultramafic rocks; intrusions; peridotites; pyroxenites; pegmatites; gabbros; granites; dykes; volcanic rocks; basalts; metamorphic rocks; amphibolites; paragneisses; schists; sedimentary rocks; iron formations; volcanic-sedimentary belts; metamorphism; deformation; petrographic analyses; textural analyses; drillholes; core samples; Canadian Shield; Superior Province; La Grande Subprovince; Domaine Eastmain; Eastmain Domain; Opinaca Subprovince; Complexe de Laguiche; Laguiche Complex; Precambrian
Illustrationsgeological sketch maps; stratigraphic columns; photographs; stratigraphic sections
ProgramNickel-copper-PGE-chrome systems, Targeted Geoscience Initiative (TGI-5)
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Released2017 04 27
Summary(Plain Language Summary, not published)
The Targeted Geoscience Initiative (TGI-4) is a collaborative federal geoscience program that provides industry with the next generation of geoscience knowledge and innovative techniques to better detect buried mineral deposits, thereby reducing some of the risks of exploration. The purpose of this contribution is to present the preliminary results on the Lac des Montagnes intrusion, a chromite-bearing ultramafic intrusion, discovered in the 60s during regional bedrock geological mapping by the ministère des Richesses naturelles du Québec in the Nemiscau area. This intrusion is part of several ultramafic intrusions trending ENE that occur within the volcano-sedimentary belt of the Lac des Montagnes in the Opinica sub-province near the contact with the Eastmain domain in the Superior Province.
GEOSCAN ID299839