Nevsun Resources has announced the assay results from the last thirty-five infill holes drilled at the hanging wall copper zone, which is located in its Bisha mining license, Eritrea. The location of the hanging wall copper zone is immediately towards the western part of the Bisha Main deposit.
The company will publish a new reserve and resource statement during the second or third quarter, which will include 29,000 m of the 2011 expansion drill program at the hanging wall copper zone.
The company has intersected 2.83% copper over 22.7 m in the hole B-467, 3.08% copper over 15.1 m in the hole B-498 and 3.88% copper over 45.0 m in the hole B-502.
Nevsun specifically designed a phase II drilling at the hanging wall copper zone in order to outline the levels and continuity of a copper mineralization formerly discovered at the site contiguous to the Bisha mine. The drilling program included 9,400 m of diamond drilling and 82 holes completed in 2011. The mineralization at the hanging wall copper zone is considered to be the extra source for Bisha’s processing plant.
A new lens of supergene mineralized copper was identified during the phase I drilling, along with high grade intervals of 8.6% copper over 30 m and 8.3% copper over 37.5 m and outlines the level of the hanging wall copper mineralization. The phase II program was specially designed to infill the zone that was outlined during the phase I program in order to gather further information for resource calculation.
The company cut the supergene sulphide lens at the drill holes B-467, B-498, B-500 and B-502. The spacing of the drill hole is around 25 x 25 m. The sulphide lens seems to a northwest lens expansion of Bisha. The company blocked the holes B-480 and B-497 for normal functional reasons and drilled again as the holes B-489 and B-502, respectively.
Nevsun conducted sample preparation and testing at theCanada-based ALS Chemex laboratory.
Source: http://www.nevsun.com/