Historic Drilling
Modern exploration at the El Espino Copper Project commenced in early 1990's when Anaconda Mining Co. carried out the initial drilling. Subsequently the Project was explored by other major international mining companies, including Rayrock Resources Inc., Goldfields, North Ltd., Anaconda Mining Co. and Teck-Cominco. Exploration has included detailed geological mapping, geochemical sampling, geophysical surveying and 13,785 meters of drilling, which intersected up to 103 meters of 0.98% Cu and 0.10g/t Au, with numerous intercepts averaging about 30 meters thick and grading over 1% Cu, within a much broader halo of about 0.5% Cu. Variable amounts of associated gold occur with the copper mineralization, e.g. hole F15, with 12m at 1.05% Cu and 2.03g/t Au.
Historic Significant intercepts are tabulated below:
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Drill Results |
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HOLE DD8 |
103m at 0.98% Cu, 0.10g/t Au |
North |
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HOLE ERD7 |
36m at 1.10% Cu, 0.15g/t Au |
Teck |
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HOLE ERD5 |
46m at 1.00% Cu, 0.11g/t Au |
Teck |
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HOLE DDE3 |
24m at 1.27% Cu, 0.30g/t Au |
North |
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HOLE F15 |
12m at 1.05% Cu, 2.03g/t Au |
Teck |
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HOLE DDE1 |
20m at 1.03% Cu, 0.09g/t Au |
North |
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HOLE ERD6 |
39m at 1.00% Cu, 0.15g/t Au |
Teck |
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HOLE ERD8 |
31m at 1.04% Cu, 0.11g/t Au |
Teck |
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HOLE ERD9 |
28m at 1.02% Cu, 0.11g/t Au |
Teck |