Industry Glossary

Industry Glossary

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Term Definition
Electrical grounding
To connect with the ground to make the earth part of the circuit.
Electrolysis
An electric current is passed through a solution containing dissolved metals, causing the metals to be deposited onto a cathode.
Electrolytic refining
The process of purifying metal ingots that are suspended as anodes in an electrolytic bath, alternated with refined sheets of the same metal which act as starters or cathodes.
EM survey
A geophysical survey method which measures the electromagnetic properties of rocks.
En echelon
Roughly parallel but staggered structures.
Entry
An underground horizontal or near-horizontal passage used for haulage, ventilation, or as a mainway; a coal heading; a working place where the coal is extracted from the seam in the initial mining; same as gate and roadway, both British terms.
Environmental impact study
A written report, compiled prior to a production decision, that examines the effects proposed mining activities will have on the natural surroundings.
Epigenetic
Orebodies formed by hydrothermal fluids and gases that were introduced into the host rocks from elsewhere, filling cavities in the host rock.
Epithermal deposit
A mineral deposit consisting of veins and replacement bodies, usually in volcanic or sedimentary rocks, containing precious metals or, more rarely, base metals.
Equity financing
The provision of funds by buying shares.
Erosion
The breaking down and subsequent removal of either rock or surface material by wind, rain, wave action, freezing and thawing and other processes.
Erratic
Either a piece of visible gold or a large glacial boulder.
Exploration
The search for mineral deposits and the work done to prove or establish the extent of a mineral deposit. Alt: Prospecting and subsequent evaluation.
Explosive
Any rapidly combustive or expanding substance. The energy released during this rapid combustion or expansion can be used to break rock.
Extraction
The process of mining and removal of cal or ore from a mine.

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