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This is mining …
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This is mining …
  • Description:
    Introduction -- Mining methods -- -- Coal mining -- Room-and-pillar mining -- Longwall mining -- Surface mining -- -- Metal/nonmetal mining -- Room-and-pillar mining -- Sublevel caving -- Block caving -- Cut-and-fill mining -- Sublevel stoping -- Borehole mining -- Surface mining -- -- Mine closure -- In conclusion -- About the U S Bureau of Mines.

    "In 1996, the U.S. Congress directed that the U.S. Bureau of Mines be abolished. Health and safety research at the research centers at Pittsburgh, PA, and Spokane, WA, was permanently assigned to the National Institute for Occupational Safety and Health (NIOSH). NIOSH is part of the Centers for Disease Control and Prevention within the U.S. Department of Health and Human Services."

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