6/13/2023 0 Comments Kolar gold fields![]() BGML has 33 million tonne of tailings with 0.72g/t gold spread all over the mining township of KGF. Notwithstanding earlier attempts of joint explorations, there have been recent initiatives for the revival of these mines. ![]() In 1994, BGML floated 02 global tenders a) exploration and exploitation of gold in leasehold area, and b) extraction of gold from mine tailings. Mine wastes in the form of rock fragments and mill tailings have been stacked in huge piles and heaps in KGF, occupying about 15-20% of the lease area. However, during 1990's the returns were 03g/t due to the depletion of the high grade ore reserve and increase in production costs, which lead to its closure few years later. The KGM yielded 47g of gold per tonne of ore during 1881-1890. During 1972, Bharat Gold Mines Limited (BGML) took over KGM. ![]() The KGM have so far produced 800 tonne of gold per 51 million tonne of gold bearing rock. With a recorded history of 200 years of mining activities, KGM at Kolar Gold Fields (KGF), were once considered world's second deepest gold mine. ![]() The present study briefs the history of Kolar Gold Mines (KGM), options for further mineral exploration and opportunities to implement new scientific tools for sustainable mining and environmental management. Mineral exploration and processing is a major industrial sector in India and contributor to its Gross Domestic Product (GDP).
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