| |
Opening
Any excavation in or into a mine. |
Operator
The person, company, corporation working a mine, or the
individual at the controls of a machine. |
Outcrop
That part of a geographical stratum that appears at the
surface. |
Outbye
A word relative to position, meaning farther from the
coal face, opposite to inbye. It is loosely used at times
by miners to signify the surface. |
Overman
An underground official ranking below underground manager,
in charge of a mine section, or, in some circumstances,
in charge of a whole mine during the overmen's shift. |
|
|
|
