Darlot-Centenary-Goldmine
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The Darlot - Centenary Gold Mine is located in the Yandal greenstone belt, about 680 kilometers northeast of Perth and 58 km east of Leinster in Western Australia, Australia.
The mine is operated by Barrick Gold in early 2008. It is part of the Yilgarn South operation of Barrick Gold with Lawler's Goldmine and Granny Smith gold mine.
History
The Darlot - Centenary Gold Mine is performed as underground mining. The deposit was discovered in 1996 and the dismantling of the company Homestake Mining Company began in 1998. Originally the mine area was owned by Plutonic Resources, a major Australian company operating the exploration of deposits. Barrick Gold took over the mine of Homestake in 2008.
Geology
The geological Derlot district lies at the southern end of the Yandal greenstone belt in the Yilgarn Craton. The deformed and metamorphierten volcanic rocks are tholeiitic basalts and deposited in a doleritschen storage aisle. The sill intruded on the eastern and southern boundaries of the district in Granite.
Mining operations and environmental
Barrick Gold also leaves this mine by the International Cyanide Management Code certification and wins the gold in a carbon in leach operation. The processing of the rock is carried out in this method, after comminution of the rock flotation and cyanidation involving activated carbon.
In the process of cyanide leaching of gold is chemically bound in highly toxic leachates. After filtration and precipitation occurs brown slurry, from which, after washing and drying, by reduction to unrefined gold. This process produces hydrogen cyanide and cyanides, which may escape into the environment in spite of recycling of the liquor. This may, inter alia, happen by accident, leaks and disasters. All materials incurred in this process are toxic. Although these are easily decomposed and degraded in nature, yet the resulting large slag heaps and cyanide dust may be distributed in an uncontrolled manner by wind and water, uncontrolled discharge of toxic substances into the environment and cause serious ecological damage.
Gold production
Production figures of gold mining: