Oroco Resource Corp. (OCO.V) has released the assay results from the first three holes completed on the South Zone of its flagship Santo Tomas copper porphyry project in Mexico’s Sinaloa state. As widely expected, holes 22 and 23 encountered the same thick layers of copper porphyry mineralization with for instance 228.55 meters of 0.49% copper-equivalent and 212 meters of 0.44% copper-equivalent. It is however interesting to see the molybdenum values are increasing down-hole, adding to the copper-equivalent grade. That’s clearly visible below where the deeper portions of holes 22 and 23 see a grade bump towards 0.60% CuEq and higher.
Hole 24 encountered intermittent mineralization at the western boundary with for instance 20 meters of 0.22% CuEq and 61 meters of 0.32% CuEq.This was also not very surprising as that hole was drilled on the western edge of the mineralized system, and confirms the limits of the resource. While 0.32% CuEq mineralization could still end up in the mine plan, it is more important to focus on the actual resource in the mine plan, and to add more tonnage (and increase the confidence in the current resource) in the South Zone.
Disclosure: The author has no position in Oroco Resource Corp. Oroco is a sponsor of the website. This post is for educational purposes only; be mindful investing in junior mining stocks is risky and you may lose your entire investment if things go wrong. Please read the disclaimer.
