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The Fimiston Open pit also known as the Super Pit located on south east edge of Kalgoorlie Western Australia is the sixth deepest open pit mine in the world The gold producing open pit mine is 38km long 15km wide and up to 600m deepOpen pit mining is a type of surface excavation which often takes the shape of an inverted cone the shape of the mine opening varies with the shape of the mineral deposit Other types of surface mining are specific to the type and shape of the mineral deposit

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Open pit or open cast mining is a surface mining technique of extracting rock or minerals from the earth by their removal from an open pit or borrow This form of mining differs from extractive methods that require tunneling into the earth such as long wall mining sand and fly ash automatic lightweight brick making machine for sale

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Open pit mining where material is excavated from an open pit is one of the most common forms of mining for strategic minerals This type of mining is particularly damaging to the environment because strategic minerals are often only available in small concentrations which increases the amount of ore needed to be minedMITHI Sindh Engro Coal Mining Company SECMC on Sunday made history after successfully extracting coal from the first seam of the open pit mine at Thar Coal Block II

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03 14 32 An open pit mine is a type of excavation where surface and subsurface materials soil and rock are removed typically through use of explosives and mechanical mining and hauling equipment to gain access to commercially valuable ores or other buried natural resources including coal and gemstones that are relatively close to the mining Open pit mining Deposits mined by open pit techniques are generally divided into horizontal layers called bench The thickness that is the height of the benches depends on the type of deposit the mineral being mined and the equipment being used for large mines it

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When coal seams are near the surface it may be economical to extract the coal using open cut also referred to as open cast open pit or strip mining methods Chat Now coal mining knowledge technology pestechorgCoal mining Wikipedia When coal seams are near the surface it may be economical to extract the coal using open cut also referred to as open cast open pit mountaintop removal or strip mining

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Open pit mining Wikipedia Opencut coal mine loadout station and reclaimed land at the North Antelope Rochelle coal mine in Wyoming Wikimedia Commons has media related to Open pit miningIn a open pit coal mine the pit bottom would be the bottom mined coal seam elevation since it is usually feasible to extract multiple seams when surface mining coal In a hard rock mine the bottom of the pit would be the lowest level elevation that mining would be conducted on the ore being mined

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