Open-pit mining is an excavation or cut made at the surface of the ground for the purpose of extr... more Open-pit mining is an excavation or cut made at the surface of the ground for the purpose of extracting ore and which is open to the surface for the duration of the mine's life. To expose and mine the ore, it is generally necessary to excavate and relocate large quantities of waste rock. The main purpose of the open-pit mining is to extract the ore efficiently with less cost and high production. Open-pit mining is usually used in "hard rock" mining such as metal ores, copper, gold, iron, aluminum and many mineral. The bottom of the pit would be the lowest level (elevation) that mining would be conducted on the ore being mined.
Open-pit mining is an excavation or cut made at the surface of the ground for the purpose of extr... more Open-pit mining is an excavation or cut made at the surface of the ground for the purpose of extracting ore and which is open to the surface for the duration of the mine's life. To expose and mine the ore, it is generally necessary to excavate and relocate large quantities of waste rock. The main purpose of the open-pit mining is to extract the ore efficiently with less cost and high production. Open-pit mining is usually used in "hard rock" mining such as metal ores, copper, gold, iron, aluminum and many mineral. 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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