RE: RE: RE: soHi. Each deposit can be economic or uneconomic with varying grades because of so many other factors. Basically, most large pit operations run at only a couple of grams per tonne but because the deposits are so large, they are economic to mine. The trick is to either find a high grade deposit or a large deposit with lower grades. So far, BVG has about 12 million tonnes at 2.36 g/tonne (plus copper & silver). This gives us almost 1 million ounces, which in itself would be an economic mine. Now their results from last year (which were spectacular) at 52 m of 21 g/tonne are truly awesome. Let's say that you could add 2 million tonnes of this at 21 g/ tonne. That would add about 1.5 million ounces to this project. Or if we added 10 million tonnes we suddenly have added 7.5 million ounces to our deposit. Anyway, most finds are around the 2 g/tonne so that is what makes the BVG find so exciting. You sometimes see a small intercept of a meter or two of 10 g/tonne or more, but 52m is mind boggling. If they can drill some more holes at these high grades and especially expand the find to areas that were open and not tested yet, it could substantially expand the g/tonne and the overall tonnage. Another thing to keep in mind is that the modeled area shows a 1.4 km mineralized trend so far. The inferred resource area is only about 450m of this trend, so there is a huge area to add to the resource base. Even if the remaining 1 km tested out at the same g/tonne we should add about 2 million ounces minimum. I would suspect however, that the deposit will be substantially higher than that. I am also going to add a couple links that may be of some help.
Hope this helps a bit,
Good Luck!
https://www.e-goldprospecting.com/html/epithermal_gold_economics.html
https://www.bravoventuregroup.com/uploads/media/hra_journal_09_06b.pdf