Porphyry17 Jul 2022 13:04
It's quite heavy, but this is a very recent nature article about the formation of PCDs (porphyry copper deposits).
https://www.nature.com/articles/s43247-022-00440-7
It's not overly relevant to our area of the fold - although it does include subduction magna creators.
In general it's talking about the use of monte carlo simulations to determine ideal creation scenarios for PCDs. That the way the chambers and intrusions are developed then go on to impact the cooling and hence the mineral make up of the intrusions and alterations. Essentially slow formations with lots of magma, beat hands down, faster more violent eruptions. (I would classify ourselves as a slower formation as we were pushed up ahead of a slowly advancing sub duction zone.)
What's more important imo, is that the science and our understanding of PCDs is still advancing massively year on year, certainly from when Anglo were exploring BR 7-8 years ago. I think I posted last year about a phd vacancy at reading uni, concerning understanding how alteration actually occurred particularly the zone size.
Our understanding of geology is really quite shocking whether it's micro, such as understanding the moveability of oil in a column or chemical changes due to acidic alteration of leached intrusions, through to macro plate changes and timings such as the lachlan fold formation.
Maybe a takeaway from this is to beware of AIM\ASX\TSX exploration companies who don't have access to geologists that are up with modern theories. Some companies get lucky, some really do have very good geologists on tap. Also to be weary of IP and geo interpretation work unless you know who has done it!