TL:DR version - No
What really interests me is that Vizsla keep telling us this:
Never been systematically explored? We have these maps in Vizsla's own PRs and presentations:
We have 2 areas with historic resources and a long section of the Animas vein with >100 holes on it. Maybe the drilling was done by the mine operator? Fortunately, Vizsla give us a helping hand and tell us at the bottom of the Panuco project page (just before the photos).
So, I went over to Sedar and downloaded the report. A full 100 pages of geological fun, which gently summarized the historic, non-systemaic work done by Silverstone, who only managed to drill:
Thta's only 21,641m in 200 holes. I'm guessing that Vizsla forgot about these holes. My guess is that the core doesn't exist anymore, or that looking at the long section above a chunk of the Clemes/Muerto zone was mined, and if we have a look at them, we see:
That they are a bit shite! Silverstone only managed to drill >21km of drilling in 2 holes and defined a small, low grade resource. Why?
We have 2 options:
- Silverstone were crap, and managed to drill all the shite areas again and again
- The mineralization at Copala is hosted in very small high-grade ore-shoots
Let us not question the competence of Silverstone, and focus on the second point - small, inconsistent zone of mineralization. We can look for this in a number of ways:
- High-grade mineralization restricted to 1 or 2 holes surrounded by lots of nothing
- high-grade intervals not joining up - the vein's the same, but suddenly the silver and gold have gone on holiday to a narrow foot-wall or hanging-wall vein
Here is a long section from the Honduras vein at Copala
Look at the scale - holes AM-20-08 is only 50m from holes 09, 10, and 11. We go from good to nothing in 50m.
We see the same at the Napoleon discovery
There are some good drill-holes here, and the drilling here is at its early stage, but we can see that the high-grade intercepts are jumping from structure. We can also see that the "F" and "G" veins don;t appear to be very continuous, as they aren't intersected by hole NP-20-07 just 20m away.
- "Missing" intervals - we see on a map or section "waiting assay results", but the results never arrive
- "Missing holes" - were have the results for holes 01, 02, 05, 09 - WFT happened to holes 03, 04 and 06 --> they hot feck all is what happened.
Missing holes can also be expanded into an entire drill program going AWOL - this means all the holes were crap, and the company doesn't want to hurt everyone's feelings.
So, going through the technical report (you can download it from here), there is a table of all the narrow, high-grade hits (table 13.1)
This is just the first few intervals, there are 3 more pages for you to look at, but they look very similar to what Vizsla are getting and this is what they got:
This is crap for an underground mine, 370Kt @ 370 g/t AgEq, you can't do much with that.I hope Vizsla do find some massive ore-bodies, but the data presented by Silverstone and what we're seeing in the initial 2020 drilling data is that the high-grade mineralization is found is discrete, small ore-shoots.
One final comment, we're told this on the website:
BTW - Vizsla - Fresnillo don't own the Zacatecas district. Pan American and Capstone have a good chunk and ~50% was just sold by Santacruz silver to Zacatecas Silver earlier this year. You may want to correct that.
Thank you very much.ReplyDelete
Most helpful and appreciated.
Misleading, The silverstone workings are a small part of the Vizsla land package, give it time. They have hit mineralization in 4 other areas. It might end up being thin and uneconomical but unfair to infer the whole workings will be similar to a small portion. Poor geology really.ReplyDelete
In what aspect?Delete
If we take the latest press release (3rd of September), we can see that over 50m the grade and thickenss of the Tajitos veins changes considerable from being thick and spectacular to being a lot thinner and lower grade.
I hope that they are very successful and find lots of mineralization, but the recent historic exploration and exploitation appears to have been focused on the Animas vein, suggesting that it is/was the most important vein in the district. It would be nice to have some reporting of the production in the 21st Century as that will give us an idea of tonnages and grades of the veins.
To me, what we are seeing with the current drilling is similar to the Silverstone drilling, lots of narrow zones of high-grade mineralization that didn't really build into anything big.
They have 4 discovery at very high grade...what do you want more?...you have to wait for some more results. I don't think ES will give a money for a poor result with a high risk. And for sure he knows what he is doing. With Sprot, Beatty, Rule i make a lots of money...ReplyDelete
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