open-pit mining

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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.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.
References in periodicals archive ?
Open-cut mining and coal combustion for power generation in the Upper Hunter compete for resources with long-standing rural production, which depends on good water supplies and access to alluvial soils.
Maules Creek is located in New South Wales With 356mt JORC Reserves, capable of supporting a large-scale open-cut mining operation for more than 30 years.
Tumas Zones 1 and 2 resources were estimated by Multiple Indicator Kriging (MIK) with block support correction, and reflect open-cut mining selectivity.
"With expected capital costs of around A$350 million for open-cut mining, which includes beneficiation plants and ship loading facilities; and total cash operating costs (including royalties) of around A$37/tonne on-ship, it is expected that a final product of 66% iron concentrate will produce tremendous profits and cash-flow for Pluton for many years forward." he said.