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Yes Greatland Gold is an embarrassment. Wait before you shoot me down! An embarrassment of riches. I would be happy with just Havieron. It’s so easy to forget about all the other prospects. If the price of Gold continues to rise as some expect then some of our other assets will become even more desirable.
Anyway filter, Ignore or respond to certain posts, whatever suits you is fine by me. I’m just looking forward to the next results which are not far away at all and seeing what’s next. Good luck everyone.
Fabulous! Another GGP tenement to look forward to!
Cheers TheLearner for that. As an addition i've done a quick search for proterozoic age porphyry deposits because all of the ones I know are much younger. Good news is there are some in Sweden but all in all they are quite rare. Even Cadia is considered fairly old in the grand scheme of things but its a bit of a beast
Magictrades - the geology is beyond me (as I do not have enough time to study in detail) and thank you for your very well informed posts.
https://www.smedg.org.au/Sym99cadia.htm this article may interest you - DISCOVERY OF THE CADIA RIDGEWAY GOLD-COPPER PORPHYRY DEPOSIT
There are currently 2 Au Cu Porphyry mines in Australia - the other one is Northparkes
https://www.mining-technology.com/projects/goonumbla/
I'm not sure i'll end up reading the whole thing, I don't think i'll have the time. Also the majority isn't relevant as the report isn't focused on minerals. There are much shorter papers on the Rudall that might be worth reading instead haha. Specifically reading on the Tabletop terrane because that is closest to us. The relevance to the mineralization is in the latter pages or simply ctrl + F porphyry.
Magic, Thanks for your insight. I’m looking forward to your review once you’ve had a chance to read through all of the pages.
Thanks magic, lets hope that the Rudall complex still holds most of it's Cu-Au mineralization.
Thanks magictrades :)
A worth while valued piece of information
This is what makes this chat board GREAT.
Ok little follow up. It's a long publication by the GSWA but i've skim read a few bits. So the authors are tentatively suggesting that there is potential for porphyry Cu-Au mineralization within the Rudall in the Krackatinny Supersuite. This hypothesis relies on the timing of a specific orogenic event called the Yapungku orogeny which joined N and W Australian cratons together. The authors interpret this event to be much younger than traditionally thought of at around 1.76 billion years ago. If this event happened later than 1.76Ga, then there is more of a chance of porphyry style mineralization as that particular piece of land remained on a plate margin for a longer period of time. Before any continental collision happens, we have a subduction zone and later we get full continental collision according to plate tectonic theory.
Without getting really technical and because I haven't read the full document (104 pages!), there is evidence that supports the Krackatinny supersuite being emplaced in an arc setting and that these magma's were hydrous. A key observation is that some of the granites are Sr/Y enriched which is a geochemical parameter that is observed in other porphyry intrusions worldwide. So if present in the Rudall licence, these rocks might be mineralized.
I have had some ideas regarding if the basement is pre-enriched in metals. This suggests that might be the case. The granites within the Paterson Orogen surrounding Telfer etc must have been sourced from somewhere i.e something must have melted. If the granites are sourced from melting the Rudall complex and if the Rudall complex was pre-mineralized, we will remobilize those metals within the Rudall basement. If one of the sources of metals is indeed the Rudall complex, more deposits will be likely because the Rudall underlies the orogen. So any localized remobilization and then concentration of those metals may produce an ore deposit.
It's going to be interesting to see what results come out of the Rudall licence in terms of grade, metal tenor and rock types.
Thanks magic, i look forward to any info you can extract from this report. Far to technical for me.
cheers
I'll have a look. I had read about the Rudall for my presentations but around Havieron, those rocks are too deep down and not exposed. The new licence is of course named after the lithological group. I put a post somewhere in a thread on here about the possibility that this adds an extra factor to the geology on the Rudall if they are found. I have a few ideas surrounding the importance of the Rudall but reluctant to share as yet because I haven't got much evidence for it
I particularly like this in the conclusion.
‘One implication of the Rudall Province remaining near an open plate margin for longer than currently thought would be an increased potential for mineral systems such as porphyry Cu–Au in the Tabletop Terrane.’
I hope Magictrades has time for a little bedtime reading ;)
It's to much heavy reading for me, but. ....Maybe Paddy or Magic, could find some nuggets of useful information.
I will have another look tonight after a couple of beers.
It looks like one of those research documents you need a bundle of Uni degrees for - Geology, Archaeology, Physics and English to present it all concisely.
That might as well be in Russian to me.
Just when you think you’re learning a little bit about gold deposits, something like this comes along to hammer it home that you know the square route of squat diddly
This may be of interest for any of you geologists.
https://www.researchgate.net/publication/316825281_Geochronology_of_the_Rudall_Province_Western_Australia_implications_for_the_amalgamation_of_the_West_and_North_Australian_Cratons