Gold mining in South India is restricted to only three mines located in the States of Andhra Pradesh and Karnataka producing about 1.65 tonnes of gold per annum. There are 60 ancient/old workings for gold spread throughout the States of Karnataka and Andhra covering an area of 2.38 lakh sq.km. The greenstone - granite terrain has evolved over a period spanning from 3400 to 2500 M.Y. Out of the granite-greenstone area, the greenstones (volcanosedimentary) known as “Dharwar schist belt” covers an area of about 40,000 sq.km. All the detailed exploration for gold involving geological, geochemical, geophysical studies followed up by drilling and exploratory mining has been mostly centered around the ancient/old workings with a view to re-evaluate the gold potential in these well known auriferous areas and also to pick up any of the extension of these areas for evaluation and exploitation.
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