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Authors
Affiliations
1 Natural Resources Division, Bengal Energy Limited, Kolkata - 700 071, IN
2 Minerals and Materials Division, Everest Industries Limited, Mumbai - 400 072, IN
3 Department of Applied Geology, Indian School of Mines, Dhanbad - 826 004, IN
Source
Journal of Geological Society of India (Online archive from Vol 1 to Vol 78), Vol 77, No 6 (2011), Pagination: 549-556
Abstract
The eastern limb of horse shoe shaped "Bonai Synclinorium" in India hosts Banded Iron Formations (BIFs), consisting of major high grade iron deposits. Phosphorus (P) gets adsorbed in the iron ore by way of ion exchange mechanism of clay minerals and hydrated secondary iron oxide minerals. Its concentration is lesser in hard ores and blue dust types of ores, while the highest in case of lateritic ores. P content reduces with increase in iron (Fe) content in individual ore types. Along the eastern limb, phosphorus content gradually reduces from north to south direction. Since phosphorus is mainly associated with secondary lateritization process, its concentration is very high in top weathered profile and along the weaker zones.
Keywords
Bonai Synclinorium, Phosphorus, Lateritization, Iron Ore Deposits, Orissa.
