Uranium mining in the Bancroft area
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Uranium mining in Bancroft represents one of two major uranium-producing areas in Ontario, and one of seven in Canada, all located along the edge of the Canadian Shield. In the context of mining, the "Bancroft area" includes Haliburton, Hastings, and Renfrew counties, and all areas between Minden and Lake Clear. Activity in the mid-1950s was described by engineer A. S. Bayne in a 1977 report as the "greatest uranium prospecting rush in the world". Mining activities were conducted during two periods, 1956–1964 and 1975–1982, when uranium prices made underground hard-rock mining of the ores economically viable.
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Uranium mining in the Bancroft area
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Bicroft Mine
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Dyno Mine
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Greyhawk Mine
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Cheddar Ghost
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Faraday/Madawaska
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Painted sign on a wooden frame with evergreen trees behind it
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A road leading past a gatehouse to a series of industrial buildings
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Basic process for extracting uranium from its parent ore
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Geological map of Canada
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Locations of main mines
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Uranium oxide molecular diagram
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Places where uranium is mined – ☢ indicating locations
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X-rays of patients with simple silicosis and complicated silicosis
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Madawaska Mine entrance and entrance sign , both c. 1985
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Canada geological map.JPG
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U3O8lattice.jpg
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Entrance Sign, Madawaska Mine.jpg
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Madawaska Mine Entrance.jpg
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Silicosis complicada.jpg
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Silicosis simple.jpg
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UMTRAP 01 025 .jpg
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Weltkarte-Uranförderung.png
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Bicroft Mine
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Cheddar
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Dyno Mine
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Greyhawk Mine
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Faraday/Madawaska
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Uranium mining in Bancroft represents one of two major uranium-producing areas in Ontario, and one of seven in Canada, all located along the edge of the Canadian Shield. In the context of mining, the "Bancroft area" includes Haliburton, Hastings, and Renfrew counties, and all areas between Minden and Lake Clear. Activity in the mid-1950s was described by engineer A. S. Bayne in a 1977 report as the "greatest uranium prospecting rush in the world". Mining activities were conducted during two periods, 1956–1964 and 1975–1982, when uranium prices made underground hard-rock mining of the ores economically viable. As a result of activities at its four major uranium mines, Bancroft experienced rapid population and economic growth throughout the 1950s. By 1958, Canada had become one of the world's leading producers of uranium; the $274 million of uranium exports that year represented Canada's most significant mineral export. By 1963, the federal government had purchased more than $1,500 million of uranium from Canadian producers, but soon thereafter the global supply of uranium increased, prices fell and the government cancelled all contracts to buy. Mining resumed when uranium prices rose during the 1970s energy crisis, but this was not long lasting. Bancroft continues to be known for gems and mineralogy, and has three decommissioned uranium mines and one that is undergoing rehabilitation. A twofold increase in lung cancer development and mortality has been observed among former mine workers.
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