83 research outputs found

    Canadian Tectonics Group

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    Part E, Archaeocyatha, Ch.1, p.1-20

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    A detailed study of the lactic acid bacteria constituting a commercial cheese starter

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    [No abstract available]Science, Faculty ofMicrobiology and Immunology, Department ofGraduat

    Geology of Mount Kobau

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    Rocks of the Kobau Group occur between the Okanagan and Similkameen Valleys in southern British Columbia and northern Washington. The Group consists of quartzite, phyllite, greenstone and minor limestone deposited within a synorogenic, eugeosynclinal environment in pre-Cretaceous, possibly post-Devonian, time. Intrusion and extrusion of basic igneous rocks accompanied deposition. The observed succession has been divided into nine units with total original thickness under 5,000 feet. Earliest recognized deformation of the Group formed tight recumbent folds with easterly trending axes. Transposition of compositional layering to foliation and extensive shearing occurred at this time and was accompanied by regional dynamothermal metamorphism which attained the middle subfacies of the greenschist facies. Later (second phase) deformation produced overturned and normal folds with steep axial planes and south-easterly trending axes, and refolded early recumbent structures. Several quartz latite dykes cut the Group during or shortly after late folding. Emplacement of granitic and dioritic stocks with radiometric ages of 144 x 10⁶ years or less followed second phase folding. Contact metamorphic zones of varying extent are present around larger intrusive bodies and attain the hornblende-hornfels facies. A latest (third) phase of deformation about poorly defined northerly trending axes may be related to this intrusive episode. A number of dacite and basalt dykes intruded both stock and country rocks. Extensive fracturing during Tertiary time broke preexisting structures into numerous blocks and wedges. Fractures parallel axial planes of early and late folds as well as faults in the Okanagan Valley. Relationships between the Kobau Group and rocks in adjacent areas are unknown. The Group possesses lithologic and structural similarities to parts of the Shuswap Complex and may share some of the complex's history. Part of the southerly adjacent Anarchist Group may be correlative with the Kobau Group.Science, Faculty ofEarth, Ocean and Atmospheric Sciences, Department ofGraduat

    Ore Deposits of the Eastern side of the Coast Range Batholith (with special reference to Atlin District.)

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    [No abstract available]Science, Faculty ofEarth, Ocean and Atmospheric Sciences, Department ofGraduat

    The geology of the Black River group in the vicinity of Montreal.

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    The rocks of the Black River Group (Middle Ordovician) in the vic1nity of Montreal outcrop in a narrow belt which traverses the Island of Montreal, lIe Bizard, and lIe Jesus. They comprise three formations, the Pamella, Lowville, and Leray. The Pamelia formation is ten feet thick and is made of impure dolomltic limestones and shaly limestones; the Lowville is sixteen feet thick and is made of fine-grained and olitic, dove, thin-bedded limestones with frequent shaly partings; the Leray is twenty-two feet thick and consists of thick beds of black, light-weathering limestone, containing nodules of chert and irregularly horizontal streaks of brownish, sandy material. The formations thin out eastward, and probably were deposited in a narrow arm of the Black River sea, extending from ottawa towards and beyond Montreal. [...
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