 |  | |  | |  | |  | |  | |  | |  | |
| | | | | | | | | | | | | | |
|
|
Operations
Ghana
Mauritania
Overview
Tasiast Gold Mine
Introduction
Location
Ownership
Geology/Mineralization
Development/Mining
Technical Reports
Photo Gallery
| |
Tasiast Gold MineDevelopment / Mining All ore waste is mined via conventional, open pit mining methods. The operation utilizes selective mining techniques to separate ore and waste. The mining fleet is a combination of 120 tonne hydraulic excavators loading 90 tonne trucks. Provision has been made for drilling and blasting all primary materials. The treatment plant flowsheet is based on three stage crushing, ball milling, pre-leach thickening, and a six stage CIL circuit. Gold is recovered by an elution circuit with electrowinning of the gold onto wire wool cathodes. The loaded wire wool is smelted to produce a final bullion product. A gravity circuit will be installed in the grinding circuit to prevent build up of coarse gold during processing of the higher grade primary ores. The mine power is provided by eight 1.0MW diesel generators. Two 2.7MW HFO generator sets have been installed and are currently being commissioned. A third HFO set will be installed in 2009, following which four of the diesel generators will be decommissioned. The source of mine water supply is located 60 km west of the mine and is comprised of a semi-saline underground aquifer, which is exploited by eight wells. Water is pumped to the mine site through a 60 km HDPE water delivery pipeline to a 4000m3 storage facility at the mine site. A reverse osmosis water treatment plant provides drinking water. Based on positive results from the ongoing resource conversion drill program, an expansion of the Tasiast plant from 1 million tonnes per annum (mtpa) to approximately 2.5 mtpa has been approved. Orders have been placed for long lead time items, including a second ball mill and related equipment. Upon completion, expanded operations at Tasiast are expected to produce in excess of 200,000 ounces per annum. |
| Home Operations Investors News Corporate Responsibility QwikReport Contact |  |
| |