Current Science

G. S. Yadav ¹, A. Muthamilselvan ², T. S. Shaji ³, L. K. Nanda ⁴, A. K. Rai ⁴

Affiliations
1 Jamshedpur 831 002, IN
2 Center for Remote Sensing, Bharthidasan University, Tiruchirappalli 620 023, IN
3 Thiruvananthpuram 659 012, IN
4 Hyderabad 500 016, IN

Abstract

No Abstract.

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G. S. Yadav ¹, U. K. Pandey ², S. L. Aravind ³, P. K. Panchal ³, A. S. Venkatesh ⁴, P. R. Sahoo ⁴, A. K. Chaturvedi ², A. K. Rai ², P. S. Parihar ²

Affiliations
1 Atomic Minerals Directorate for Exploration and Research, Jamshedpur 831 002, IN
2 Atomic Minerals Directorate for Exploration and Research, Hyderabad 500 016, IN
3 Atomic Minerals Directorate for Exploration and Research, Jaipur 302 030, IN
4 Department of Applied Geology, Indian Institute of Technology (Indian School of Mines), Dhanbad 826 004, IN

Abstract

Uranium mineralization in Bichun area, Jaipur district, Rajasthan, India is hosted by albitites within the Banded Gneissic Complex (BGC). Detailed mineralogical and EPMA studies reveal the presence of davidite along with brannerite and uraninite. The U-Pb concordia upper intercept age of 933 ± 13 Ma and Pb-Pb isochron age of 930 ± 4 Ma, on pure davidite fractions indicate the timing of uranium mineralizing event to be ca. 930 Ma. The timing of uranium mineralization can be correlated with the Grenvillian orogeny (ca. 1000 Ma). The Sm-Nd model age (T_DM) of daviditeis varies from 1851 to 2200 Ma with ε_{Ndi(930 Ma)} ranging from -10.7 to -15.5 which shows that the Palaeoproterozoic rocks with crustal component (either within BGC or basement granite) are the source for uranium.

Keywords

Albitite Zone, Davidite, Geochronology, Orogeny, Uranium Mineralization.

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Ashim Jana ¹, B. C. Sarkar ¹, Suresh Kumar ¹, Ajay Kumar ¹, G. S. Yadav ¹, Pramod Kumar ¹

Affiliations
1 Atomic Minerals Directorate for Exploration and Research, Jamshedpur 831 002, IN

Abstract

India is deficient in both gold and uranium resources. Almost one-third of the annual global mine production of ~2500 tonnes of gold is imported into India to fulfil the high gold consumption. Uranium is important for production of nuclear energy, more specifically to execute the country's ambitious programme to generate 20 GW of electricity by 2020.

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