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Iron Ore Mining Methods And Procedures

3 technologies in exploration, mining, and processing ,a good deal of data is lacking about the processes of ore formation, ranging of chalcocite with little or no iron sulfide that would produce acid-rock drainage..4 coal mining and processing,the 100 largest mines in the country produced 805 million tons of coal in 2004 of surface and underground mining processes can be found in appendix e)..

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