splay and en echelon veins
posted on
Feb 26, 2012 06:30PM
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
We see considerable mention of these types of veins within the MSC (main strucuctural corridor). These types make up a lot of the MSC and add to the continuous NNW trending main veins. Think of these splay and en echelon veins as the small bones coming off a backbone (a main vein) as a backbone of a fish with the rib bones as offshoots.
These splays are known to be higher grades than the main veins and there are too many of them to count on the MSC, with the most residing on the east side of the corridor closer to or over the anomaly.These splays, en echelon and veinlets are what carry high grade gold as well, and are scattered throughout the main corridor. These 3 vein types above could be enough to let the MSC average 1 g/t, not even having to use the main mesothermal veins or the diseminated gold in the granodiorite itself. So, if you put this kind of mineralization in the MSC at 6500m long x 400m wide x 500m deep at 1 g/t, I believe that may give us somewhat a good amount of gold. This is not even mentioning the north corridor.
from our web site
Below is a section from our website which talks about the main trend. The mention of the intersections of structures(faults,fractures and dykes) causing blowouts of gold, should be noted, whereas there are numerous intersections like these on the Tesoro which can be easily seen by looking at any diagram picturing the many faults/fractures.
The gold bearing veins in the district tend to be typically less than 1.5 meters wide, and extend along strike and at depth for much greater distances with subvertical dips. These veins generally follow two main structural trends; 040o to 080o and 115o to 160o. The two main structural trends intersect each other at numerous points within the Property. Traditionally intersections of gold bearing structures can cause bonanza grade gold as well as “blow-outs”, which are larger volumes of quartz that fill voids created by the colliding intersecting structures.
The mesothermal vein systems in the region which have been historically exploited tend to be long, narrow (typically less than 1.5 meters wide), deep, and unrelated to epithermal-suite elements such as mercury, antimony, bismuth, molybdenum. These deposits are commonly deeper than they are long, and gold mineralization more extensive down plunge than along strike.
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So, just a few more reasons why the Tesoro has an excellent chance of being the host of an economical deposit. The first part of the post is my interpretation of the 2010 tech report portion dealing with geology of the property. It may not be right and is only my opinion.
IMO