Obuasi Gold Mine

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Quick Facts

Obuasi, Ghana

Location

Gold

Resource

34.05 Moz

Reserves

7.98 g/t

Quality

Production

Phase

Location

Related Government

Geology

The mine is located on the Ashanti Volcanic Belt and the lithology is predominantly from the Biriman Supergroup. They originate from the mid-oceanic arcs of volcanoes, which formed a crust and collided with the West African Craton. Gold mineralization is found in the graphite-chlorite-sericite fault zones and is associated with carbonate and sulfide hydrothermal alteration.

Project Owners

The redevelopment project is being operated by AngloGold Ashanti, which is Africa’s largest gold mining company. Redevelopment officially launched in January 2019 after AngloGold Ashanti secured approval from the Ghanaian Government in June 2018. Project Status: The first phase of redevelopment involved mine rehabilitation and the refurbishment of parts of the processing plant. The second phase involves refurbishing the shaft, ventilation, and underground material handlings system. An upgrade of the processing plant is also proposed, in order to double processing capacity. The upgrade will involve the installation of a new primary crusher, semi-autogenous grinding (SAG) and a ball mill circuit, a carbon regeneration facility, a new tailings storage facility, and a new gold room.

Available Data

Geological Map Feasibility Study Infrastructure: There are roads leading from Accra to the mine, with a total travel time of up to 5 hours. The electricity supply will be from three 33MVA lines by the Volta River Authority. Water supply will be sourced from the Jimi River which is 7.5km away from the mine site.

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