Tonnage increases at the cubed of the drive width - double the drive width and you can shift 8 times the volume of rock (all other things being equal).
Yes this means that you will be shifting more gangue rock, but if doing this drags down the overall cost per ton for the ore then it is a win. Anyway this will all come out in the DFS and I am certain the company will have considered if it is better to mine narrow or wide, with or without ore sorting.
On the topic of DRM I would love to see a study from them on the effect of ore sorting at Deflector and in particular Andy Wells. I hope LJ looks into this.
Tonnage increases at the cubed of the drive width - double the...
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