Journal of Geological Society of India (Online archive from Vol 1 to Vol 78)

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Geology of the Jensurigudda Iron Ore Deposit of Chickmagalur District, Mysore


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1 Sandur, India
     

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The Jensurisudda Iron ore deposit is one of the prominent iron ore occurrences in the Bababudan hills of Mysore State belonging to the 'Bababudan Series' of Dharwarian age.

The formation consists of bedded hematite and limonite resting over ferruginous shale with lenses of quartzites. The structure is a major fold with axis trending NNWSSE. The harder rocks viz. the quartzites and the ores display innumerable irregular folds. Structural control or localisation is present in a broad sense. Harder or lumpy ore overlies softer ore and blue dust. The ore body extends to a depth of 20 metres. It is inferred that the ferruginous shales are the source rocks for ore formation and that the concentration has been achieved through 'lateritic weathering'.


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  • Geology of the Jensurigudda Iron Ore Deposit of Chickmagalur District, Mysore

Abstract Views: 200  |  PDF Views: 2

Authors

R. N. Mishra
Sandur, India

Abstract


The Jensurisudda Iron ore deposit is one of the prominent iron ore occurrences in the Bababudan hills of Mysore State belonging to the 'Bababudan Series' of Dharwarian age.

The formation consists of bedded hematite and limonite resting over ferruginous shale with lenses of quartzites. The structure is a major fold with axis trending NNWSSE. The harder rocks viz. the quartzites and the ores display innumerable irregular folds. Structural control or localisation is present in a broad sense. Harder or lumpy ore overlies softer ore and blue dust. The ore body extends to a depth of 20 metres. It is inferred that the ferruginous shales are the source rocks for ore formation and that the concentration has been achieved through 'lateritic weathering'.