RE: Depth of Hav and breccia.29 Sep 2020 21:23
Hi DjfW
There probably is a source under Havieron but I wouldn't expect it to be something to get excited about.
The magma core down below maybe iron or magnetite. Most of the elements like copper,gold, iron,lead etc in molten sulphides all cool at different rates leading to higher copper and gold grades nearer to the surface.
I'm expecting the bulk mining to start from about 1250m of ore body. Future ores maybe removed thereafter but only if they're economic.
What I'm more excited about is what Magic's presentation suggested, that the magma could run under Scallywag and Blackhills and has produced similar structures like Havieron.
Different situations faults,vents etc when mixed with the cooling temperatures produce different sulphides and grades.
I expect Magic will explain it better
or have a look at this website
911metallurgist.com on VMS massive sulphides easiest to understand maybe
ATB:))