Now showing items 11-20 of 23
Survey of the mainland and island belts, Thunder Bay Silver District, Ontario : fluid inclusions, mineralogy, and sulfur isotopes
The Thunder Bay Silver District is composed of two curvilinear groups of veins, the Mainland and Island Belts. The veins can be mineralogically divided into the barren, silverbearing, and 5-element association veins. During ...
Quetico Fault in the Superior Province of the southern Canadian Shield
The Quetico fault is a major transcurrent fault in the southern Superior Province of the Canadian Shield. Along part of its length the fault forms the boundary between the Wabigoon subprovinces. Dextral motion on the ...
Petrography, geochemistry and petrogenesis of alkaline dyke rocks from the Coldwell Alkaline Complex, Northwestern Ontario
Dyke rocks occurring in the Coldwell alkaline instrusive complex, N. W. Ontario, were studied by various petrographic and geochemical means. The resulting observations indicate that 5 types of mafic alkaline lamprophyres, ...
Petrology of syenites from centre III of the Coldwell Alkaline Complex, Northwest Ontario
The Coldwell Alkaline Complex, situated on the north shore of Lake Superior, is of Neohelikian age. It is intruded into Archean supracrustal rocks of the Superior Province, near Marathon, Ontario. The complex has a diameter ...
Aspects of gallium geochemistry in upper mantle-derived lherzolite xenoliths and continental alkaline volcanic rocks
Various aspects of the geochemistry o-f Ga in upper mantle—derived garnet, Iherzolite xenoliths (from the Bult-fontein Floors mine dump in Kimberley, South Africa), spinel Iherzolite xenoliths (from Mount Porndon, ...
Petrology, geochemistry, sulphide and platinum-group element mineralization of the Geordie Lake intrusion, Coldwell Complex, Ontario
PGE-bearing Geordie Lake intrusion is located in the north-central region of the Coldwell comples near the town of Marathon.
Assimilation of basic xenoliths within centre 3 syenites of the Coldwell Alkaline Complex, Ontario
This thesis describes the occurence, mineralogy and assimilation of basic Kenoliths hosted by Centre 3 syenites. Field work ‘was earned out in two locations, one in the vicinity of Neys/Ashburton and the other a ...
Stratigraphy, structure and metamorphism of Archean rocks at Rainy Lake, Ontario
The rocks of the Rainy Lake area have been deformed during three distinctive episodes. Minor structures provide the geometry which characterizes each episode. The youngest structures include regional faults, a crenulation ...
Structure and magnetic fabric of the Quetico metasedimentary rocks in the Calm Lake - Perch Lake area, near Atikokan, Northwestern Ontario
The Quetico metasedimentary rocks are the metamorphosed equivalents of a turbidite sequence, comprised of a repetative interstratification of sandstones and mudstones. The rocks are metamorphosed to lower greenschist ...
Geology of sulphide-facies iron-formations and associated rocks in the lower Steel River-Little Steel Lake area, Terrace Bay, Ontario
The Lower Steel River - Little Steel Lake area is located about 25 km east of Terrace Bay, Ontario. Seventeen iron-formations were investigated within this metamorphosed Archean volcanic and sedimentary terrain, which ...