Mode of Uranium Occurrence in a Migmatitic Granite Terrain, Baie Johan Beetz, Quebec

Abstract The Turgeon Lake granite lies 5 miles north of Baie Johan Beetz, Quebec, at the eastern margin of the Grenville Province. The rocks are classed as granites, granulites, quartzites, biotite schists and gneisses, and amphibolites. The granite's uraniferous character is manifested by phosphuranylite, uraninite, and metamict zircons associated with magnetite. Field anomalies occur in irregular pods, conformable with the tectonic foliation, in bands roughly paralleling sedimentary bedding. Associated features diagnostic of uraniferous granite are smoky quartz, brick-red feldspar, magnetite and a coarse to pegmatitic grain size. The granite is chemically and physically heterogeneous. Metasediment-granite contacts are diffuse or sharp, and usually conformable to bedding. The regional foliations within all rock types are coherent, and sedimentary structures are often preserved within both metasediments and granite. Autometasomatism probably was a strong granitization agent.
A uranium reconcentration into fold-axial zones from original sediments which have been highly granit-ized during at least two phases of folding is suggested from the available data.
Keywords: Turgeon Lake granite, Baie Johan Beetz, Geology, Petrology, Ore mineralogy, Petrochemistry, Mineral deposits, Migmatites, Uranium, Granites.
Full Access to Technical Paper
PDF version for $20.00
Search
Sort By:  Relevance
Showing results 1 - 6
Text
Summary: Cette presentation .traitera des differentes phases des operations de la mine du Mont-Wright depuis ses debuts jusqu'a present. A une breve description de la geologie du gisement, suivra un expose des methodes d'exploitation de la mine et du genre d'equipement utilise.
Publication: CIM Bulletin
Author(s): Gaston Gendreau
Keywords: Mont-Wright, Exploitation miniere, Geologie, Equipements, Planification, Camions, Foreuses, Sautage.
Issue: 780
Volume: 70
Year: 1977
Text
Summary: The Mount Wright iron ore mine and upgrading plant were brought on line in the fall of 1975. The mine is located near the Quebec - Labrador border some six hundred miles northeast of Montreal. This paper describes the crushing, grinding and concentrating facilities at Mount Wright, and some design criteria used in equipment selection and flowsheet design. Also mentioned are some "as-built" modifications. A brief description of the over-all flowsheet is also included.
Publication: CIM Bulletin
Author(s): David Runnels
Keywords: Mount Wright, Quebec Cartier Mining Company, Crushing, Grinding, Concentrating, Dust collection, Crude-ore handling, Ore reclaim, Ore storage.
Issue: 780
Volume: 70
Year: 1977
Text
Summary: Afin de pourvoir aux besoins d'hebergement des quel-ques 1600 employes qui travailleront dans toutes les spheres operationnelles de I'exploitation du gisement du Mont-Wright, ainsi que de leurs families, Quebec Cartier a du, avec I'aide de conseillers reconnus, et la participation de ses employes residant a Gagnon, etudier tous les nouveaux etablissements residentiels nordiques des dernieres annees tout au Canada qui dans les pays scandinaves afin d'etre en position de concepter une agglomera...
Publication: CIM Bulletin
Author(s): Paul-J. Bourassa
Keywords: Fermont, Mont-Wright, Logements, Batiments coupe-vent, Planification, Contracteurs.
Issue: 780
Volume: 70
Year: 1977
Text
Summary: One of the design criteria for the Mount Wright facilities was to incorporate the latest proven automation techniques and devices for the new crushing, grinding and concentrating plant.
The heart of the centralized control system is a Fox 1 process computer, located in the central control room in the administration building. The entire operation, i.e. crushing, conveying, storing, grinding and concentrating, is monitored and controlled, through the process computer, by one operator via a CRT...
Publication: CIM Bulletin
Author(s): G. Bourque, D. Runnels
Keywords: Mount Wright, Process computer, Plant control, Process control, Management reports, Quebec Cartier Mining Company.
Issue: 780
Volume: 70
Year: 1977
Text
Summary: Shovels of 18 cubic yard capacity and larger are described which incorporate advanced technology and techniques providing performance and operation tailored to meet the needs of open-pit mining.
To achieve the goals of increased production at lower cost with consideration of maximum availability, lower energy consumption per ton and low impact on pit power, Harnischfeger Corporation developed a solid-state drive system ("Electrotorque" — P&H trademark) and applied unique transmission...
Publication: CIM Bulletin
Author(s): S. S. Burns
Keywords: Mechanical-electrical equipment, Shovels, Mining shovels, Electric shovels, Open-pit mining, Transmissions, "Electrotorque", Generators, Energy consumption, Power factors.
Issue: 780
Volume: 70
Year: 1977
Text
Summary: Incorporated in 1957 under the laws of the Province of Quebec, Quebec Cartier Mining Co. undertook the development of its low-grade iron ore reserves located at Lac Jeannine in the southwest extremity of the Quebec-Labrador trough. This challenge comprised the construction of a 200-mile access road, two towns, a 191-mile-long railroad from Port Cartier to Lac Jeannine, a hydro-electric generating plant on the Hart Jaune River, and mining, crushing, concentrating and ancillary facilities to...
Publication: CIM Bulletin
Author(s): P. J. Bourassa
Keywords: Mount Wright, Quebec Cartier Mining Company, History, Development, Geology, Railroads, Power, Tailings disposal.
Issue: 780
Volume: 70
Year: 1977
Powered by Coveo Enterprise Search