Porgera Gold Mine, Papua New Guinea
Key Data:
Producer of
Gold
Location
Enga Province, Papua New Guinea
Ownership
Barrick Gold Corp. (75%)
Geology type
Mineralisation associated with intrusive boundaries
Mineral type
Native and sulphide-associated gold
Reserve base
58.37Mt proven and probable, containing 7.3Moz Au (2004)
Annual production
845,000oz Au (2005)
Mining method
Open pit and underground mining
Processing method
Crushing, grinding, gravity recovery of free gold, flotation, pyrite concentrate pressure oxidation and carbon-in-pulp gold recovery
Employment
2,210 plus 510 contractors' staff
Key Equipment:
Open pit
O&K RH 200 hydraulic excavators
Caterpillar 789 haul trucks
Concentrator
Fuller-Traylor crusher and SAG mill
Heath & Sherwood (1964) sampling systems
Knelson gravity concentrator
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