Opencast sometimes referred to as open cut mining, surface mining or simply open pit is extracted a mining technique that important minerals from a borrow or an open pit.
There are two types of extraction methods, commonly used in Large scale mining mineral; Open pit mining and tunnel mining or Under ground mining. Opencast mining is used when the minerals are on the surface only in the vicinity are degraded. This is especially when the soil or material covers the minerals are relatively thin and can be easily moved for mining to take place.
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