face sampling

face sampling

[′fās ‚sam·pliŋ]
(mining engineering)
Taking random samples of ore and rock from exposed faces of ore and waste.
References in periodicals archive ?
Initial face sampling of crosscuts indicates that ore grades are consistent with expectations.
The deposit has been delineated in the upper levels by face sampling of development drives, underground diamond drilling and surface diamond drilling and minor RC drilling.
The estimate is based on good quality surface RC, surface and underground diamond drilling and face sampling data.