geology of the frieda river igneous complex
Six main deposits, namely Horse, Ivaal, Truki, Nena, Koki and Ekwai, have been identified at the Frieda River copper and gold mine. The mine also contains several other unexplored deposits.
“United Gold Mining LLC is the operator of the mine and holds 20% interest in the mine.”
These deposits are part of the Frieda River Igneous Complex (FRIC) located in the southern part of the New Guinea Thrust Belt. They were formed during the Miocene age through extensive thrusting and faulting.
Estimated resources of the mine include 12.9 million tons (mt) of contained copper and 20 million ounces (oz) of gold.
The Horse / Ivaal / Truki deposit is estimated to contain measured resources of 1,190mt graded at 0.49% Cu and 0.25g/t Au. Indicated resources include 410mt graded at 0.44% Cu and 0.20g/t Au. Inferred resources are 900mt graded at 0.4% Cu and 0.2g/t Au.
Measured and indicated resources at Nena are estimated at 33mt graded at 2.81% Cu and 0.65g/t Au.
The Koki and Ekwai deposits are currently not part of the feasibility study. Inferred resources at 0.2% Cu cut-off are estimated at 450mt graded at 0.37% Cu and 0.25g/t Au for Koki, and 170mt graded at 0.38% Cu and 0.23g/t Au for Ekwai.