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Paddy -
I know I have mentioned it before but, with talk today about Telfer Deeps, I was reminded of the geophysics, on the GGP website. There is a description of a lateral offset and a considerable vertical offset of two bodies, indicated at Havieron.
NCM are certainly interested in the SW and, for whatever reason, there seems to be a considerable distance (on the surface) between the drill collars and where we anticipate there may be an extension to the horseshoe arms.
So, perhaps they are drilling very deep and still investigating the indications from the geophysics.
Paddy, you know were I've always stood on the "at depth" huge possibilities!
Slainte, GLA & DYOR!
yeah... but, Gandalf wasted the balrog in the mines of moira....
"Balrogs are tall and menacing beings who can shroud themselves in fire, darkness, and shadow. They are armed with fiery whips"
Oh my!
Which is that WF - the Balrog or the Kraken??? :-))
She's my niece. Honest, she is. Now stop it with all the nasty rumours!
Would that be a cousin of the Kraken.
So looks like they have form for tunnel first, prove up from deep later. So they must deffo see Hav as an analogue of the Telfer deeps. Heres hoping we don't waken the Balrog. (LOTR nerd breakout)
Thanks Paddy. I'll check out that web site too.
Hi mush - there's a s**tload of info on Telfer including all the geological bumpf on this webpage.
http://www.portergeo.com.au/database/mineinfo.asp?mineid=mn224
"In 1991 surface exploration diamond drilling intersected the I30 quartz reef within the Main Dome at 1000 m below surface. A mining feasibility study was completed in 1995 and a decline was commenced that reached ~500 m below surface by July 1997. An underground drilling program ensued, followed by a study of how to best extract the series of deep high grade reefs that were discovered. This work outlined a high grade core reserve in the I30 Reef of 1 Mt @ 15.6 g/t Au, 2.6% Cu, surrounded by a larger tonnage, lower grade gold and copper stockwork. This was, in turn, was part of an even larger underground resource on the eastern limb of the Main Dome associated with an additional eight hanging wall and three footwall reefs, collectively known as Telfer Deeps."
So reading this I guess they were still doing exploration drilling even while the mine was merrily producing - I guess this is standard practice at mining operations as they like to increase the reserves as often as possible.
If we had a similar system we would therefore expect it to be a minimum of 1,400m below the surface.
ATB - Paddy
Paddy, Do you know whether the deeper 'reef' deposits at Telfer were found as a result of improved drilling techniques or standard practice once the 'easier' deposits have been mined out or simply from a more desperate need to keep the mine operating?
Thanks Paddy, great update info - as always.
Hi aidin,
That is one of the delights that the depths of Havieron "might" be holding for us as we go deeper - we know the Telfer deeps were where the "reef-like" deposits were found after they had exhausted the high grade near the surface from the open-pit. If 400m down equates to our open-pit then how deep do they need to go before they get to the equivalent.
We won't know until the get down there but every report up to now has stated "still open at depth" so we still have every chance.
ATB - Paddy
Thanks Paddy, good to see normal board discussions resume after yesterdays tizzy.
Do the rigs being so far from the plotted sulfide zone mean they are plumbing the deeps, or is there the potential to have other folder reef like deposits, which I think Telfer had? (I do like your fat MRE theory too!)
excellent stuff paddy...thanks for your efforts and calming influence using cold hard analysis..
GL
Thanks Paddy - your observations are invaluable and selfless - a scholar and a gent was a phrase tailored just for you!! Thanks buddy.
@jaguar - the drilling is from the SW back towards the mineralisaton - it's not a new area IMO.
Thanks Paddy.
Hopefully they will be able to prove up the 'extrapolation'.
so if they find anything sw that would be closer to telfer yes?
Guys/Gals,
I have just been back over the satellite images for the past 2/3 weeks and something blatantly obvious has struck me that I didn't notice before - probably spending too much time looking at Scallywag recently. Have a look at this image.
https://ibb.co/6HZywVs
The majority of the rig activity has been in the original SW area (circled) and the newish most westerly hole (circled on it's own) which has had a rig on it permanently for weeks now. The activity in the very far NW seems to have quietened down a bit recently so I'd be hoping to get the results from up there in the next report.
The increased activity in the highlighted area though suggests to me that they are concentrating on the area between HAD066 and the end of the known section of the sulphide zone - are they trying to get enough drilling into this area to allow them to include it in the MRE? We know the mineralisation found in HAD066 displayed the same characteristics as that found in the crescent zone. If they were to prove this area up and it showed the same mineralisation levels & depths as the crescent zone then the MRE could conceivably be double the Hannam estimate of 4.5Moz of high grade material (still discounting any allowance for the breccia).
GLA - Paddy