Vancouver —
The program is designed to test diatreme breccias associated with high-sulphidation style alteration identified over an area measuring 4 by 2.5 km. The first holes will be collared on the Cerro Crespo target, which is marked by a flat-topped ridge extending for 600 metres in a northwest-southeast direction. The ridge is strongly silicified and made up of several types of breccias containing vuggy silica, alunite, barite and hematite.
Preliminary bottle-roll metallurgical tests on surface material yielded a 91% recovery rate for gold within four hours and 76.2% recovery for silver within 24 hours in one sample, and 91.6% for gold in eight hours and 65.7% for silver in 24 hours in another. The head grade for the former was 310 grams silver and 0.53 gram gold per tonne; for the latter, it was 241 grams silver and 0.33 gram gold.
Twelve holes with an average depth of 150 metres are planned.
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