Re: Lode gold?
in response to
by
posted on
Oct 09, 2011 01:40AM
Keep in mind, the opinions on this site are for the most part speculation and are not necessarily the opinions of the company WITHOUT PREJUDICE
Hi CDN,
Ok, here is what your missing.
Most of the quartz (quartz or quartzite is a rock)veins on the Tesoro carry gold. BUT that is not the only rock on the Tesoro that contains gold. There is gold disseminated in the host rock that carry these quartz veins. That rock is diorite, granodiorite and andesite. There may be other carriers as well, but thats enough to explain this.
There has been some testing of the gold grade in the HOST rock and the extent, how far the gold was able to penetrate into the host rock. This is not exactly how it happens, but I think you get the picture. Anyways,we have assays from host rock with values above 1 g/t at the surface. So, you are seeing that the gold is not only in the veins, BUT in the host rock as well. I put a couple posts on the board a month or so ago talking about this very thing and its importance. We have tested the host rock in 3 different places on the property at surface, and one underground around the A-4.
We have to look at more than just the veins on this property to get the full picture, here are contributors.
There appears to have been at least 3 different events over time that have deposited gold on the Tesoro. The first one most likely deposited gold and other minerals in bands in the host rock. The next one and subsequent events would find these weak spots and break through them when powerful eruptions came, these eruptions of fluids (quartz) would carry gold with them from the depths depositing some gold in the host rock because of the enormous pressure and leaving the bulk in the veins. These eruptions could have happened several times over the millenia, each time depositing more and more gold from the depths, where plate tectonics enabled new gold to be burnt off underneath the continent, and distributed to the surface each time the pressure became so immense and caused eruptions.
Sorry, I got carried away. I will get to the main point.
The anomaly looks like it is diorite/granodiorite. If it is, its most likely going to be mineralized to maybe the extent of 1 g/t, who knows maybe more. Now imagine if you will, a powerful eruption that kept cracking and fracturing this hard rock and pushing it higher to form our plateau. This is most likely gold carrying fluid thats splitting the anomaly every which way and depositing gold through every crack and fissure, further enriching the already mineralized diorite. Then imagine each subsequent eruption of fluid depositing more gold and swelling the anomaly.
So, you see. If the whole thing is mineralized to this extent, you should be able to assign a value of gold to the whole anomaly.
I am not a geo, but this is how I understand things to work and this post is IMO.