Ann: IOCG Wedge Holes Provide Exceptional Visual Sulphides, page-33

The grade so far improves towards the East from the mother hole which means as the fault-line is approached according to their schematic. Reasonable assumption is that the fault is acting as a fluid pathway. However on the other side of the fault, the historical holes as shown in the schematic did not show significant copper. Whatever, at these depths of 800 - 900+ metres, the mineralization will only be economic if much longer intersections of bornite/chalcocite are encountered. The blebby and disseminated nature of the chalcopyrite, being a less rich copper grade, although extending over longer intersection lengths than the bornite seen so far, is pretty much a side show and uneconomic at these depths. Bornite/chalcocite is the Holy Grail and much longer intersections are required as with other mined IOGC systems. Across the fault line the copper is minimal, so I guess its a question of how the bornite shapes up as the drill approaches the fault zone to its East.