RE: Ex Havieron crew in on a Sunday morning preparing the rig for this season - Stuart Hinds19 Jan 2025 14:04
There are 2 types of drilling resource drilling and grade control. The latter one doesn’t need a Jorc report and the tests are all done in house at Telfer.
The fan drilling is all resource drilling because it will need to conform to Jorc being a new resource, the same would be for other targets around Telfer.
In house testing controls the grades going in and out of the stockpiles and controlling items quantities like Bismuth. Also controls which face is mined to control grades flowing to the ROM piles.
Fan drilling the Havieron ore body will happen to control grading:- the sulphides have complex grades and the stope planning will need this information, also the breccia will need fan drilling to aid with future mine planning.
The testing at an independent lab will only be needed if information is required for a Jorc assessment.
There’s only a handful of historical drills under the Camp and airport, they probably won’t have gone down very deep.
The geology under the Camp is on top of a downward slope, so I’m assuming the E reefs(which would be the highest reef) is going down quite fast at that point. It’s this reef the current fan drilling is following downwards and the mineralisation will weaken the further it goes eventually. Any mining there will be underground.
All my own opinion.