RE:The Importance of Grade Control and Mining Dilutionnozzpack....this is simply Scare Tactics....what knowledge do you have to back up those comments!
Some of Goldboro's resource are thin vein - yes correct...most veins are wider quartz belts with low grade haloes.
I have see the bulk sample blast rounds underground in the ramp, there is very little dilution. In general the target economic quartz belts at Goldboro are contained in fine grained argillite. On the hanging and foot wall (contacts) of the argillite quartz belts you have greywacke which creates an excellent smooth break point thus minimizing dilution.
I have see the 400 foot level of the Boston Richardson mine...same thing 8 meter wide mined out stopes with smooth contacts on hanging and footwalls (remember the grades for the Boston Richardson mine were between 5 and 6 g/t.)
At Forest Hill all underground headings were 1.5 meters wide. One vein mined there was just 3.5 cms thick and very rich in gold. We diluted the grade incredibly but still got 6g/t from this heading...the stopes were much narrower....dilution and grade control not an issue.
Trust me, all of these narrow vein intersections from the latest press release are
very economic even with 300+ % dilution.
130.70 g/t gold over 0.5 metres at 79.9 metres in hole BR-22-380;
47.20 g/t gold over 0.5 metres at 229.7 metres in hole BR-22-374;
77.70 g/t gold over 0.5 metres at 123.0 meters in hole BR-22-379;
21.00 g/t gold over 1.0 metres at 210.3 metres in hole BR-22-377; and
28.10 g/t gold over 0.5 metres at 112.1 metres in hole BR-23-381.
Not concerned with dilution at Goldboro as the angle of the sedimentary limbs at Goldboro and Forest Hill gold gold mine are around mid 70 degrees and makes for a great angles to mine (limits dilution). The mineralized host rock is very competent and since the quartz is generally hosted in the fine grained argillite (a bit softer), the break points are excellent for mining.
Scare tactics...just stop posing the garbage please.