nonselective mining

nonselective mining

[¦nän·si′lek·tiv ′mīn·iŋ]
(mining engineering)
Mining methods permitting low cost, generally by using a cheap stoping method combined with large-scale operations; can be used in deposits where the individual stringers, bands, or lenses of high-grade ore are numerous and so irregular in occurrence and separated by such thin lenses of waste that a selective method cannot be employed.
References in periodicals archive ?
This new technology reduced the relative cost of mining lower grade ores, which led to an adoption of nonselective mining practices.
Evidently, a complete analysis of this argument would require a comparison of productivity profiles before and after the introduction of the nonselective mining techniques.
17) This trend, however, underwent a dramatic reversal with the introduction of nonselective mining techniques-the mechanization of functions previously carried out by hand labor.
And as with their smelter operations, they would soon apply the mechanization and task simplification of nonselective mining to overseas operations.