The grades remain strong which is a plus.
With respect, the 35m is not the true width. Charger note later on in the announcement that the DD drill holes are slightly oblique to the interpreted plane. That's being generous. They were drilling far closer to down-dip than perpendicular.
If you take the shortest distance across the mineralised envelope shown in figure 2 and starting where CLMDD001 first hits this "envelope", its close to half the drill hole distance. If you were generous its 60% of the length drilled. To get true width for the 35m you need to multiply all widths by perhaps 50 or 60%. The 35m was 2.5+6.5+1.3+1.65+9.7+8.2+1.9+1.85+1.65. There were also another 21 thinner intersections not included in the 35m, presumably as they didn't exceed 1m. The difficulty is how much dilution would exist in mining even the 6.5, 8.2 and 9.7m seams? How much dilution would occur in mining the thin seams. How much higher iron mafic is captured in trying to mine them? Is it unmineralised pegmatite or mafic between the intercepts?
Given their depth the individual intercepts were on the thin side and an oblique angle of drilling makes it worse.
If Charger (or for that matter TG6, GL1 or others) are going to have a mining plan involving thinner or thin seams, they need to show a beneficiation process that is going to avoid the issues of either not recovering a significant amount of the thin seam (in avoiding the nearby iron rich mafic) or collecting significant quantities of Mafic and therefore having ore that comes in well above 1% Fe that then need to be reduced to lower levels of iron. GL1 showed very promising results with an ore sorter (presumably optical). If Charger were to take a long sample like this, crush the whole lot together and find they could sort it to 30-35m of good material then it is potentially valuable. Its conceivable this may even recover thinner again seams so you might get the equivalent of more than 35m.
However, if there's no effective way to mine thinner seams, they are waste. If the seams don't fatten, the strip ratio for open pit may be getting too high. Is UG mining going to work on these thinner seams?
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