upper Bornite Zone?, page-16

@WhatLiesBeneath29 I undertook a similar analysis not long ago against the major IOCG deposits as I was concerned/confused by the lack of a substantial gravity anomaly at HWDD04. However, I did play around with the contour and gravity line settings and you do get a little anomaly there. Also handy to reference the Zonge MT data from a while back. The pink cross is my estimate of the rough location of the drill hole.


Add on the breakdowns of the Eastern Feeder zone and it looks like they have drilled right into it:


Then overlay the Aeromagnetic targets and the MT, Magnetics and Gravity contour (noted it is not a huge anomaly) line up quite nicely.

Think HWDD03 is a little further south and looks as though it could indicate the distal portion of a mineralised system (whether that is Oak Dam west or a separate system associated with HWDD04 as the more proximal drill hole remains to be seen).

Also looked at what weight is given to TMI & Gravity and the pros v cons of both. Found an interesting article on the limitations of the data and what may skew it in the Gawler Craton and Mt Isa regions: https://www.tandfonline.com/doi/pdf/10.1071/ASEG2012ab278?needAccess=true