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Mar 25, 2020· Open cast mining is a type of surface mining in which mineral resources are removed from the earth through large holes or pits dug into the surface. The term "open cast mining" is used most commonly in Great Britain. In the United States, open cast mining is usually called open-pit or open-cut mining. According to the Berkeley Laboratory for
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Aug 18, 2008· Open cast mining is used where the resource is near the surface and widespread - examples are iron ore, bauxite and any other deposit that is near the earth's surface. A deposit which has a limited areal extent and/or is very deep will be mined by undergroung mining. This is more expensive, so is only justified where the grades are good.
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To me as a mining engineer with many years experience in both types of mining, open cast mining means that the deposit is mined in a series of strips with the overburden from each successive strip moved or cast into the preceding strip. The meth
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Mar 20, 2010· "Detrimental" effects of open pit mining? How about some positive benefits: 1. jobs. 2. taxes. 3. skills, education, and training. 4. technology. 5. standard of living. Mining has taken place for thousands of years and is a temporary use of the land. With proper mining and reclamation practices, there should be no detrimental effects at all.
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