Open pit means a method of surface mining where coal is exposed by removing the overlying rock. This is also known as open-cut or opencast mining.
Open pit means a mine working or excavation open to the surface.
Open pit means a surface working pit open to daylight, such as a quarry.
Examples of Open pit in a sentence
Open pit ore production re-commenced in 2012 and was completed in July 2013.
Open pit mineral resources are reported at a cut-off grade of 0.4 g/t Au within a conceptual pit shell.
Open pit Mineral Resources were estimated at a cut-off grade of 0.3 g/t AuEq and were constrained by a Whittle pit shell.
Open pit Mineral Resources are constrained by an optimized pit shell at a gold price of $1500 oz Au.
The Canadian Institute of Mining, Metallurgy and Petroleum (CIM), definitions were followed for Mineral Resource Estimates.2. Open pit Mineral Resources were estimated at a cut-off grade of 0.3 g/t Au and were constrained by a Whittle pit shell.
More Definitions of Open pit
Open pit means the area within which ore and waste rock are exposed and removed by surface
Open pit means mining in which the ore is extracted from a pit. The geometry of the pit may vary with the characteristics of the ore body;
Open pit means any mine operated on the surface of the earth, including quarries, but excluding sand and gravel operations.
Open pit means a surface mine for excavating rock as a source of metal or metalloid. (« minière »)
Open pit means the surface workings open to daylight that will be excavated to extract waste rock and ore, as each is described in an approved plan listed in Schedule C related to mine development and operations;
Open pit means a mine worked at the surface.