Barisan Gold Corporation has received further assay results from two recent holes at Upper Tengkereng gold-copper porphyry discovery, located in the province of Aceh. Both holes returned copper and gold mineralized intersections.
The company received results from the first 800 metres of one hole drilled from a new platform on the eastern edge of the first high-grade zone discovered at Upper Tengkereng. This hole was completed on July 9 at a final length of 1185 metres with further assays expected.
As a result of being drilled from a platform sitting outside the mineralized intrusive, in a direction back towards the deposit, the hole entered mineralization 292 metres from surface. From 292 to 800 metres it returned 508 metres @ 0.7 grams/tonne gold plus 0.4% copper, ranking it the second highest grade hole drilled to-date at Upper Tengkereng.
The high-grade chalcocite-chalcopyrite rich zone starts at the 510-metre mark and continues to the end of the assays received to-date. From 510 to 800 metres it returned 290 metres @ 0.8 grams/tonne gold plus 0.5% copper. The high-grade mineralization remains open down hole at a depth below 800 metres.
The initial objective of this hole was to drill a vertical hole into the first high-grade zone discovered at Upper Tengkereng in an attempt to determine the true vertical width of that high-grade zone as well as determine how close to surface the high-grade zone begins. This objective was unfortunately not met as the location emerged too far east of the deposit and high-grade zone. As a result a new drill platform has been built directly above the high-grade zone.
The company recently received the second tranche of assay results for the previous hole. The hole is mineralized 4 metres from surface and, as a whole, is the highest-grade hole drilled so far at Upper Tengkereng averaging more than 0.9% copper equivalent over its entire length to-date. From 188 to 600 metres it returned 412 metres @ 0.7 grams/tonne gold plus 0.7% copper. High-grade mineralization remains open down hole at a depth below 600 metres with the final 32 metres of the intersection (from 568 to 600 metres) returning 0.9 grams/tonne gold plus 0.6% copper.