C-1 vein widens at depth
posted on
Dec 17, 2011 09:19PM
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
Here is an excerpt from the 2005 tech report;
Within the Canchete 1 Shaft, twenty-two samples were collected of the C1 vein.
Detailed results are tabulated in Table 4. It is apparent from Table 4 that the vein is
widening and the grade improving with depth. For example, 10 samples taken
between 0-18 meters have an average width of 14.8 cm and an average grade of
17.7 g/t Au, whereas 12 samples taken between 18-30 meters have an average
width of 23.9 cm and an average grade of 20.3 g/t Au. Plate 4 is a picture of the
vein at the site of sample 253425 (32 cm of 11.6 ppm Au), where the pinch-swell
nature of the vein is clearly expressed.
If we extend these widening averages to depth, at 102m= 60 cm,
at 210m= 114 cm
at 300m = 159 cm
By using the above ratio, ( and BOW, please check my math), it would look like when we hit the 372 m level, our vein should be 195cm wide. BUT, when we look at the Quantec slide line 5750, we see it hitting a high chargeabilty anomaly around this depth and the signature expands into a solid massive ball. If we backup to the 120m level on the image, we see a much bigger signature than the 69cm that can be figured from the ratio formula.
What I am getting at is this; I believe this vein widens much more quickly at depth than what I calculated above. This should also be the case with the sulphide chargeability signature we are seeing traced from surface, down to the high chargeability anomaly starting around the 380m level. I believe the sulphides are giving the signature on this slide because we kniow the sulphide percentage increases at depth like the image shows. We also know that on the C-1 vein, that the gold grade increases with the sulphide percentage, and at depth. The other thing I will point out is that it is inconceivable for me to think that once you get past the sulphides on the horizontal, the chargeability response keeps going into the rock. That is to say, that I think the Titan has got almost the true width of the sulphides at this location.
You have to remember when thinking about this, that there are many off shoots from the main vein that has sulphides in them, pushed out to the ends of the veinlets. These should also carry the gold by the simple reasoning, that gold accompanies the sulphides and it is easier to push gold sideways than it is up. This is what the Quantec is picking up, these off shoots, and it is not a reflection or shadow, but most likely the actual thing. And if you think about it, I don,t think an ordinary rock will hold a charge, so it has to be the sulphides, and the accompanying gold.
IMO