quarrying of copper ore

Strip Mine, Quarry, or Gravel Pit (75)Vegetative cover and overburden are removed to expose such deposits as coal, iron ore, line, and copper. Quarrying of building and decorative stone and.quarrying of copper ore,Innovations: Introduction to Copper: Mining & ExtractionCopper minerals and ores are found in both igneous and sedimentary rocks. Mining of copper ores is carried out using one of two methods.74. Mining and QuarryingMining and Quarrying Chapter Editors: James R. Armstrong and Raji Menon Table . 12 tonnes of ore; each tonne of copper comes from about 30 tonnes of ore.

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quarrying of copper ore