RE: Ggp13 Aug 2021 20:51
Hi Lenz
I started off with an ovoid shape plan and gridded it with 50m squares, around the perimeter were squares that had the perimeter running through them forming triangles and rectangles.
I went right round the perimeter calculating each part square, then adding this to the number of 50m squares gave me a fairly accurate 176,000 sq m.
Multiply the area x 1300m depth = 228,800,000 cu m
Multiply x specific gravity of 2.7 Used by Ggp = 617,760,000 tons
I’ve used a fairly low average grade 0.75g/t
Multiply 617,760,000 x 0.75 = 463,320,000 grams
Divided x 31.1 = 14,897,749.2 oz
If this turns out to be 1g/t which is highly likely then the total sum = 19,863,665 oz
I’ve not included the lower ovoid figures but there is at least 10m oz @0.75 g/t or 13.5m @1g/t in the additional zone if my assumptions are right and it’s still open SE,N,E,NW and of course at depth .
I’ve not deducted any dilution which the industry norm allows 15%, but there’s nothing like 15% is this vertical ore body.
It’s all about the grades , the oz/m figure of 8,500 is based on 0.55g/t average on the top 350m we know that is the weakest area of the crackle. The breccia down below has consistent grades over 1.5 such as the 347m @ 2g/t.