South Kalgoorlie Operations
- 100% Alacer Gold
- 15 km south of Kalgoorlie, Australia
- Open pit
- Gravity, CIP
- 2012 Gold Production:
- 40,406 ounces
- Proven & Probable Reserves:
13.9Mt at 1.5g/t gold for 0.64 million ounces
- Measured & Indicated Resources:
50.0Mt at 2.1g/t gold for 3.3 million ounces
(as at December 2012)
The 100%-owned South Kalgoorlie Operation (“SKO”) was acquired by Alacer Gold as part of the merger with Avoca Resources in early 2011. Avoca had acquired SKO as part of the 2010 takeover of Dioro Exploration, who had purchased the operation from Harmony Gold in 2007.
SKO is centred on the Jubilee processing plant, located 15km south of Kalgoorlie, Western Australia.
The SKO tenements contain numerous structurally controlled orogenic gold deposits occurring in the Archaean Norseman-Wiluna Greenstone belt, part of the Yilgarn Craton. The HBJ, Mutoroo, Celebration, and Golden Hope gold deposits form a mineralized gold system along the Boulder-Lefroy shear zone that is more than 4 km long. These deposits are hosted within a steeply-dipping, north-northwest-striking package of mafic, ultramafic and sedimentary rocks and schists that have been intruded by felsic to intermediate porphyries.
The Pernatty open pit is currently being mined via a conventional excavator and truck operation.
Alacer's sold its 49% minority interest in the Frog's Leg Mine in early 2013 and agreed to toll treat Frog's Leg ore until approximately June 30, 2014.
Ore from SKO and Frog's Leg is processed through the Jubilee processing plant - a standard crush, grind, leach and CIP circuit with a throughput capacity of 1.2 Mtpa.