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open-pit mining
(redirected from Open pit mine)

   Also found in: Wikipedia 0.01 sec.
open-pit mining [¦ō·pən ¦pit ′mīn·iŋ]
(mining engineering)
Extracting metal ores and minerals that lie near the surface by removing the overlying material and breaking and loading the ore. Also known as open-cast mining; opencut mining.


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[ILLUSTRATION OMITTED] The Toronto junior miner is steadily progressing toward building an open pit mine north of the airport in the town of 3,600 on the north shore of Lake Superior.
Borax is gearing up to make the largest open pit mine in California even larger.
The project consists of an open pittable heap leach oxide deposit and a deeper sulphide deposit and will comprise an open pit mine and heap leach plant for exploitation of the oxide portion of the deposit.
 
 
 
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