Normal
Well it seemed to cause a bit of a blip in the sp,It looks like what they're doing is searching for a zone which may have underground potential underneath one of their current pit designs. The current pit designs give an indication of how far they can mine down profitably, given the amount of waste material they'll have to remove i.e. the stuff with no gold in it.Their current pit shells seem to be robust and economic to relatively low grades by Australian standards I suppose, but for a viable underground operation, 6-6.5 g/t Au would be the bare minimum given that development costs are about $20,000 per vertical meter. Most open cuts that are fortunate enough to progress underground will generally have a portal constructed in the base of the pit, followed by decline development to reach the high-grade ore at depth.Hope that makes sense
Well it seemed to cause a bit of a blip in the sp,
It looks like what they're doing is searching for a zone which may have underground potential underneath one of their current pit designs. The current pit designs give an indication of how far they can mine down profitably, given the amount of waste material they'll have to remove i.e. the stuff with no gold in it.
Their current pit shells seem to be robust and economic to relatively low grades by Australian standards I suppose, but for a viable underground operation, 6-6.5 g/t Au would be the bare minimum given that development costs are about $20,000 per vertical meter. Most open cuts that are fortunate enough to progress underground will generally have a portal constructed in the base of the pit, followed by decline development to reach the high-grade ore at depth.
Hope that makes sense
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