Mining
Definition(s)
The act, process or industry of extracting coal, ores, etc. from the earth (Source: GEMET/CED), including the search for economic deposits of minerals, ore, gas, oil, or coal by geological surveys, geophysical prospecting, boreholes and trial pits, or surface or underground headings, drifts, or tunnels. (Source: GEMET/MGH)
Documents
Documents tagged with Mining