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open pit mining presentation ppt

Mar 13, 2012·Open-pit: Reclamation after completion 2.Open-Cast: Reclamation duringmining3. Quarries: stone, crushed rock, sand, gravel 4. StripMining: removing surface coal in strips up to 50 m wide x 1 Km long 5. PlacerMining6. Glory holeMiningISN 10

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