2007-09-21 01:56:46 · 2 answers · asked by zymzyv 3 in Education & Reference ➔ Words & Wordplay
SMU Selective Mining Unit
In calculating the proportion of ore above a cut-off, it is necessary to determine how selectively mining will be done. The selective mining unit (SMU) reflects mining selectivity. When Uniform Conditioning was carried out, the proportion of ore and metal tonnes above a cut-off were computed by determining how many SMUs within a panel were above that cut-off. In this study, it was established that a 6.25mE x 25mN x 10mRL panel could be reliably estimated from the given drilling grid, and that a SMU of 6.25mE x 6.25mN x 2.5mRL would be used to represent mining selectivity.
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2007-09-21 02:05:48 · answer #1 · answered by Anonymous · 0⤊ 0⤋
I though it meant Stop Melting Uncontrollably, but Elizabeth is right - Selective Mining Unit
2007-09-21 11:23:21 · answer #2 · answered by ghouly05 7 · 0⤊ 0⤋