tunnelling
Underground mining technique employed when there are gem bearing rocks, as an outcrop, close to the surface. A tunnel is dug from the surface, by blasting or using pick axes, to remove the individual gems. Source: Infomine, Mining Dictionary.
- Part of Speech: verb
- Industry/Domain: Mining
- Category: General mining
0
Other terms in this blossary
Creator
- mbourgaize
- 100% positive feedback
(Nanaimo, Canada)