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Placer Dome Gold Mine – Porgera – Papua New Guinea

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

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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