The Bannockburn Gold Mine is located approximately 30km south west of the Thunderbox Gold Mine adjacent to the Old Agnew Road. Mining at Bannockburn was first recorded in 1908 and continued intermittently through to the 1980's over which time ~16koz were recovered. It wasn't until the 1990's that larger scale operations were established, with open pit and underground mining realising ~312koz up until closure in 1998.
Bannockburn is a complex gold deposit with multiple controlling factors. The majority of the mineralisation is hosted within highly silicified and altered mafic schists associated with the gently west dipping Central Thrust. The mineralised zone is bounded on the west by the regional scale NNW trending Bannockburn fault. A series of steep east dipping lodes in the hangingwall of the Central Thrust are interpreted as extensional veins associated with progressive movement on the thrust.
Bannockburn is a large resource located 40km southwest of the Thunderbox processing plant. A large drill program was executed at Bannockburn during FY2019. The aim of the program was to increase the resource confidence in the north of the Project from Inferred to Indicated. This program was successful in increasing the resource category in the north and also confirming the existing geological interpretation, which was largely based off historical data. Drilling results were in line with expectations and the mineralisation remains open.