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

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Rb-Sr Age of the Belka Pahar Granite, Sirohi District, Rajasthan


Affiliations
1 Department of Geology, University of Poona, Pune 411 007, India
2 Physical Research Laboratory, Ahmedabad 380 009, India
3 National Geophysical Research Institute, Hyderabad 500 007, India
     

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At Belka Pahar, in the Sirohi district of Rajasthan, metasediments of the Delhi Super Group are associated with a medium-grained, leucocratic, alkali granite. Whole rock isotopic data for this granite define a Rb-Sr isochron corresponding to an age of 860±25 Ma and an initial 87Sr/86Sr ratio of 0.7059 ±0.0032.
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  • Rb-Sr Age of the Belka Pahar Granite, Sirohi District, Rajasthan

Abstract Views: 218  |  PDF Views: 2

Authors

A. B. Chakranarayan
Department of Geology, University of Poona, Pune 411 007, India
K. B. Powar
Department of Geology, University of Poona, Pune 411 007, India
K. Pande
Physical Research Laboratory, Ahmedabad 380 009, India
K. Gopalan
National Geophysical Research Institute, Hyderabad 500 007, India

Abstract


At Belka Pahar, in the Sirohi district of Rajasthan, metasediments of the Delhi Super Group are associated with a medium-grained, leucocratic, alkali granite. Whole rock isotopic data for this granite define a Rb-Sr isochron corresponding to an age of 860±25 Ma and an initial 87Sr/86Sr ratio of 0.7059 ±0.0032.