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Open Cast Mining Advantages And Disadvantages

What is deep coal mining and open cast mining what are ,dec 19, 2017 Wh the coal is located just below the earths surface us open cast mining. when coal is located in deep below earth we have to adopt deep mining. open cast mining.only remove the top layer debris of rocks and get coal..huge trucks can come down through slopes and remove and load, transport coal..this is cheaper and less dangerous. deep mining require drilling deep shafts few .

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