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Authors
Affiliations
1 Geological Survey of India, Bangalore, IN
2 Geological Survey of India, Jaipur, IN
Source
Journal of Geological Society of India (Online archive from Vol 1 to Vol 78), Vol 36, No 6 (1990), Pagination: 607-623
Abstract
Native silver alloyed with gold in varying proportions occurs as tiny inclusions mostly in the sulphide ores of Ingaldhal, Chitradurga schist belt. The data presented establishes the copper deposit as a source of silver metal too and the appropriateness of terming the hill 'Belligudda' (Silver Hill) by the ancient miners is affirmed. The volcanic flows having a dominant tholeiitic character are the actual source of basemetals, as well as precious metals, while tectonism and metamorphism aided by the intrusion of Chitradurga granite pluton have probably caused variable amounts of redistribution and remobilisation.
Keywords
Copper, Silver, Gold, Polymetallic Sulphides, Ingaldhal, Chitradurga Schist Belt, Karnataka.
