Thanks mate, appreciate your dive into the databases just as I...

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Seth Davis

8,057 Posts.

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28/04/24

14:17

Post #: 73543649
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Originally posted by salpetie: ↑

Reply to @Seth Davis
Hope your TH prediction is a good one.

IMO geophysics are fairly agnostic until the drill bit tells the cause. Quite often doesn't, leaving everyone puzzling and back to the drawing board.

Comparing to Luni works for some aspects if you ignore the 80 Kms of possible cross strike separation and possible differences of geology.
Suspect the ages may be somewhat compatible as may be the geological setting with a major fault structure (CAS). Large structures at Luni/Aileron are possibly different to the CAS but not enough info to tell for me.

Since the carbonatites and/or IOCGs (if present) are intrusive from great depths they can come up these deep seated structures. Appears to be the case for WA1/ENR carbonatites and could be possible along the CAS and associated structures. If the latter is the case a regional carbonatite/IOCG play could develop.

To the north of WA1/ENR ground, companies(LYN and?) will be testing of gravity and magnetic targets this field season although geological mapping suggests the players will have to contend with an unknown thickness of later sediments (Murraba basin/Hidden Beds). The geophysical signatures are strong, so maybe they get lucky with limited cover.

Seth D shows the presence of earlier shallow drilling in the figure 2 image. These are a couple of screenshots from the GSWA's Geoview

Locations for named RCR gravity anomalies are approximate. The yellow and 'blue' symbols are drill holes that can be found in Geoview. Most will be shallow aircore holes (blue) with the yellow RC chasing the disseminated copper around Pokali hill.
This 2012 open file report gives a good history of exploration in the area. 2012 ASHBURTON A96793.PDF
BHP looked at Pokali Hill Cu in the 90s and deemed it not worth their interest at the time.
Drilling on Geoview magnetics.

I would prefer copper over Nb or REEs. A tier 1 discovery would help the area that is beyond the black stump and needs such deposits to get the infrastructure in place IMO. Nb - supply demand issues unless new uses are forthcoming - IMO. REEs are not rare and very difficult to process so unless a Mt Weld type discovery is made (even then could be problematic) these issues will be a real challenge.
Copper - disseminated and vein controlled at surface to shallow drill depths. The location puts constraints on what could be mined - large, preferably with high grade. Probably UG rather than OP as previous work could limit near surface potential.

Interesting times for the West Arunta. GLTAH.

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Thanks mate, appreciate your dive into the databases just as I have done over the prior six week which is the reason for me buying sub $0.03.

Back when BHP walked away in the 90's only shallow drilling was done (some deeper RC holes) and not over a great area targetting surface copper anomalies (soils/rocks) without any modern day geophysics - how many times have we seen majors do a first pass and walk away only for someone else decades later to come back and find the prize - all too often.

I make no analogy to Luni in any of my posts, I don't think Pokali has much possibility of Nb/REEs - put that to bed.

All my analogues for Pokali are actually based of classic IOCG copper gold systems, predominantly those in SA which appear to be a similar age to this system.

So far historic drilling has not intercepted any gravity targets, some conductance and magnetics have been drilled. In classic IOCG systems breccia copper is typically associated with gravity, not magentics which is typically associated with magnetite, the copper sulphide mineralisation drilled so far at Pokali.

This is where I'll stop for now, could go on for 10,000 words and nobody want that!

RCR Price at posting: 6.9¢ Sentiment: Buy Disclosure: Held
12 Upvote

0 Great analysis

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