Mining

Mining

Of or pertaining to the process or business of extracting materials, such as ore or minerals, from the earth's crust.

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Mining > Gold mining

sampling

Mining; Gold mining

The act, process, or technique of selecting a representative part of materials from drillholes for the purpose of determining parameters or characteristics of the deposit.

shaft sinking

Mining; Gold mining

Shaft mining or shaft sinking refers to the method of excavating a vertical or near-vertical tunnel from the top down, where there is initially no access to the bottom.