New Occurrence of Manganocolumbite from Late Proterozoic Pegmatites of Bhurpidungri, Jharsuguda District, Orissa

Authors

  • P. Jagadeesan
     Atomic Minerals Directorate for Exploration and Research, Department of Atomic Energy, Civil Lines, Nagpur - 440 001
  • K. S. Mishra
     Atomic Minerals Directorate for Exploration and Research, Department of Atomic Energy, Civil Lines, Nagpur - 440 001
  • P. V. Ramesh Babu
     Atomic Minerals Directorate for Exploration and Research, Department of Atomic Energy, Begumpet, Hyderabad - 500 01 6

Keywords:

Manganocolumbite, Pegmatites, Jharsuguda District, Orissa.

Abstract

Manganocolumbite in the pegmatites of Bhurpidungri(Lat: 21°51'30": Long: 84°15'52", T.S.No.73C/5) in the Jharsuguda district of Orissa is reported for the first time from the pegmatites of India. It contains upto 18.46% MnO, with an average (n=8) of 14.52% MnO, 7.26% FeO(T), 60.18% Nb2O5 and 14.33% Ta2O5. A swarm of pegmatites is exposed, intruding at the contact of granite gneiss and amphibolite/Charnockite near the Bhurpidungri village. These pegmatites are well-Zoned with prominent quartz core, intermediate zone and wall zone. About 4 tonnes of manganocolumbite has been estimated in the gravels of these pegmatites for exploitation. Apart from this, beryl is also found in sufficient quantity.

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Issue

Volume 66 , Issue 2 , August 2005

Section

Short Communications

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Published

2005-08-01

How to Cite

Jagadeesan, P., Mishra, K. S., & Ramesh Babu, P. V. (2005). New Occurrence of Manganocolumbite from Late Proterozoic Pegmatites of Bhurpidungri, Jharsuguda District, Orissa. Journal of Geological Society of India, 66(2), 141–144. Retrieved from http://www.geosocindia.com/index.php/jgsi/article/view/82586

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