I am not a geologist but I have looked at the 2017 presentation on Kalman (last known mineral resource estimate).
I put the 2017 and February 2023 images side by side and thought about what has changed. Unfortunately they have changed the colours. Nevertheless, CUeq seems to have changed quite a bit from my point of view.
The blue areas in 2016 with CUeq 0 to 0.70 - seemed to be pink now, corresponding to a CUeq of >2.0. That would be a three to six-fold increase in CUeq. This pink zone was also highlighted by Dan in his Brisbane presentation (pointing at it with the laser pointer and mentioning it specifically).
Then there is this somewhat undefined orange zone towards the south where, in my view, the CUeq could also have moved upwards in the grand scheme of things.
Clearly flying under the radar so far is the ASX announcement of 13 February this year (Exceptional Hits BOLSTER impeding resource update...). This is that toxic green zone in the north with some very nice CUeq (1.74%, 5.1%, 0.97%, 2.88%, 0.89%, 5.97% - seems to me we could end up averaging over 2% CUeq here too. That would also be in the "open pit" zone.
Am I making a miscalculation here? It seems to me that the CUeq of 360kt from 2016 could move noticeably - if not massively - upwards? Is that possible? A doubling possibly? Or even more. I can't get those 1 million KT out of my mind that Dan mentioned in passing and out of context in the presentation.
Metallurgical recovery also plays a role here (ore sorting). Weren't they going to do more in-depth research?
Does anyone have a sense of something like that here? Geofiji perhaps?
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