Including Vayots Dzor and Syunik regions. 180 km away from Yerevan, Amulsar gold mine.
In the area of Amulsar gold mine column drilling was performed with drill rigs СКБ 4 and Atlas Copco CS14. 10000 linear meters of drilling was done with diameters PQ (108mm), HQ (93mm) and NQ (76mm), up to 60 degrees in dip and 400 meters maximum depth. The minimum total core recovery (TCR) was 96%.
Also in the area of Amulsar gold mine RC (Reverse Circulation) drilling were performed with drill rig GEMEX RC 250. 13000 linear meters of drilling was done, with diameters 124-133mm and 300 meters in depth. The minimum total core recovery (TCR) was 92%.
In the territory of Amulsar gold mine geotechnical drilling works were carried out jointly with Golder Associates in accordance with international standards. 2000 linear meters of drilling was done, diameter HQ (93mm). Geotechnical sampling, Standard Penetration Test (SPT) was done according to ASTM D1587 standard and undisturbed sampling (SHELBY) test according to ASTM D1587 standard, also reduced (Maag) and stable (LA Franc) pressure tests, injection (LUGEON) tests, installation of piezometer and so on.