Mineral mining

Mineral mining

The extraction of valuable minerals or other geological materials from the earth for economic interests.

Industry: Mining

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Mineral mining

Kiruna method

Mining; General mining

A borehole-inclination survey method whereby the electrolytic deposition of copper from a solution is used to make a mark on the inside of a metal container. Compare: acid-dip survey.

Ball-and-socket reamer

Mining; General mining

A borehole-reaming device consisting of a bit attached to a ball-and-socket or a knucklejoint member, that in turn is connected to the drill rods and used in borehole-deviation drilling.

Multiple-shot instrument

Mining; General mining

A borehole-survey instrument capable of taking and recording a series of inclination and bearing readings on a single trip into a borehole. Compare: single-shot instrument.

Arc cutter

Mining; General mining

A borehole-reaming device consisting of a bit attached to a ball-and-socket or a knucklejoint member, that in turn is connected to the drill rods and used in borehole-deviation drilling.

Line clinometer

Mining; General mining

A borehole-survey clinometer designed to be inserted between rods at any point in a string of drill rods. Compare: clinometer; end clinometer; plain clinometer; wedge clinometer.