Mining Methods And Gold Processing Musselwhite Mines

   

      Mining methods and gold processing musselwhite mines initially operated both open-pit and underground mines, open-pit production having been designed to ensure mill feed at a rate of 3,300t/d for about five years following mill commissioning. Most of the mine’s ore is now sourced from underground. And gold processing from musselwhite mines processing includes crushing, grinding, leaching by cyanidation, carbon in pulp recovery and electrowinning, to achieve an overall recovery of approximately 96%.

      The stratigraphy in the Musselwhite mine vicinity is dominated by mafic volcanics, chemical sediments and felsic volcanics. External into the supracrustal sequences are a series of undifferentiated gneisses and granitoids. All mineral lithologies within the immediate mine area have been metamorphosed at mid to upper amphibolite facies. Mineralization is predominantly hosted within meta-chemical sediments (banded iron formations) and in particular within garnet-magnetite-grunerite facies meta-banded iron formations (locally termed the Northern Iron Formation). The location of mineralization is controlled by the intersection of shear zones and folded meta-banded iron formations. These geological controls result in mineralized shoots, which plunge at approximately 15 degrees to grid north, have a down dip extent of up to 150 metres, down plunge continuation in excess of 1.5 kilometres, and across-lithology width of up to 10 metres. Mineralized zones are characterized by abundant pyrrhotite, quartz flooding and, rarely, visible gold.

Mining Methods In  Musselwhite Mines

Gold Mining Industry In South Africa

      

       The country of South Africa is the producer of gold in the world. The successful gold mining industry in South Africa has had a significant impact on the development of africa as an advanced an economically successful country. Mining in South Africa has been the main driving force behind the history and development of Africa's most advanced and richest economy, after Nigeria The nation's gold mining efforts began with the discovery of a diamond stone at the Orange River in 1867. Soon after, the Kimberly pipes were discovered and explored, and gold rushes began to Pilgrim's Rest and Barberton. The Witwatersrand gold rush took place in 1886. This historical event began the development of the gold field in the area and formed the well known city of Johannesburg which is a region africa gold mines. Known as the Witwatersrand basin, this popular area has generated more than 41,000 tons of gold from Africa Mining and continues to be mined today. It is a massive area that encompasses more than 400km.

      The gold mining industry in South Africa is successful due to the countries large gold in africa, which make up a substantial portion of the gold reserves and gold prospecting in the entire world, with some estimates over 50%. The US Geological survey believes that the country has over 6000 metric tons of precious metal, but 95% of it is located underground. The future of gold mining industry in South Africa depends on the level of gold, that the mines can produce. However, the extraction of gold has recently declined because of rising costs. These higher costs are a direct result of the declining grades, an increase in the underground depth of the mines and a declining gold price.