RE:RE:Lol…nice assultFordster says dont worry about 9:1 strip ration. Its just a mountain to be moved from on top. And at 0.7g/t Au, why even worry?
Besides, gonna blockcave it from 2.5kms underground. Easy peasy.
cskhurasu wrote: Hi fordster...you mention those 'silly steep strip ratios' in the Tudor Technical Report. I think they are more serious than silly.
The Technical Report breaks down open pit vs underground resources in table 14-1...550 million tonnes in the open pit and 325 million tonnes that would have to be mined underground.
Table14-15 estimates the strip ratio for the open pit at 8.6/1.0. This means you have to mine 9.6 tonnes to get one tonne of ore. And that is with unusually steep pit slopes. These are the issues that tell you whether TC grade is really economic or not. You can't tell from the assy table.