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Motherlode-Mesothermal Gold Deposits

  • MESOTHERMAL LODE GOLD DEPOSITS OF THE CANADIAN CORDILLERA
    Mesothermal lode gold deposits account for 75% of the gold production in the Canadian Cordillera, i.e. Cariboo, Cassiar and placer occurrences such as the Klondike and Atlin camps. This presentation highlights genetics models of origins and characteristics of mineralisation.

    Bruce Nesbitt is a Professor from in the Department of Geology at the University of Alberta. He holds a B.Sc. from Carleton College and Master and Ph.D. degrees from the University of Michigan.

  • GEOLOGY OF THE KENSINGTON VEIN, SOUTHEAST ALASKA
    The stratigraphy of the Kensington vein in the Berners Bay Mining district in the Juneau gold belt. The slides show the formation theory and geology of this mesothermal deposit.

    D.B. Harvey from Echo Bay Explorations Inc., Juneau, Alaska. Responsible for the Kensington project. B.Sc. from California State University and Fullerton.

  • WRENCH FAULT TECTONICS AND GOLD MINERALISATION: THE GOLDEN BEAR DEPOSIT IN NORTHWESTERN BRITISH COLUMBIA
    The Golden Bear Deposit of over 600,000 tons at more than 18 grams per ton Au, is west of Dease Lake, British Columbia. The slide show details the mineralisation and epithermal and mesothermal theories of origin.

    J.L. Oliver with the Department of Geological Sciences, Queen's University. Has acted as a consulting geologist for the British Columbia Geological Survey for Continental Gold. B.Sc. in Geology from U.B.C., Masters degree in mineral exploration at Queen's University.

  • GEOLOGY, WALLROCK ALTERATION AND CHARACTERISTICS OF THE ORE FLUID AT THE BRALORNE MESOTHERMAL GOLD VEIN DEPOSIT, SOUTH WESTERN BRITISH COLUMBIA
    With 4 million oz. of gold produced over its 70 years, the Bralome-Pionner deposit is the site of the highest gold production in British Columbia. The lecture covers the geology, geography and origin of this most improtant mesothermal deposit.

    Craig Leitch is with the Department of Geological Sciences at the University of British Columbia.

  • STRUCTURALLY CONTROLLED MINERALISATION AT THE MCMASTER ZONE, CAROLIN AREA, COQUIHALLA GOLD BELT, SOUTHWESTERN BRITISH COLUMBIA
    New exploration results of the McMaster zone, owned by Carolin Mines. The slide show details the newly integrated stratigraphy similar to other mesothermal deposits in British Columbia and California.

    J.T. Shearer is with New Global Resources Ltd. and Carolin Mines Ltd. Graduated in 1973 with B.Sc. honours degree followed in 1977 by Royal School of Mines, Inperial College M.Sc. Supervised exploration programs for Carolin Mines, 1980-1984. Held managing positions with serveral Vancouver companies. Currently managing the exploration program for New Global Resources Ltd.

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