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

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Fission Track Ages of Some Alkaline Rocks of India


Affiliations
1 Physics Department, Kurukshetra University, Kurukshetra, India
2 Department of Geology, Presidency College, Calcutta, India
     

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Attempt has been made to date the alkaline suites of India on the basis of fission track analysis of apatite. The alkaline plutons of the Eastern Ghats Belt appear to be related to a late Precambrian tecto-igneous activity though all the intrusions may not be strictly synchronous. New age data on some alkaline rocks from the Deccan volcanic province indicate the related magmatism to be older than the available age level for the bulk of Deccan lavas. The apparently isolated occurrence of alkaline complex of Mundwara in Sirohi, Rajasthan has been related to Deccan volcanicity on the basis of apatite ages.
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  • Fission Track Ages of Some Alkaline Rocks of India

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Authors

M. K. Nagpal
Physics Department, Kurukshetra University, Kurukshetra, India
K. K. Nagpaul
Physics Department, Kurukshetra University, Kurukshetra, India
Mihir K. Bose
Department of Geology, Presidency College, Calcutta, India

Abstract


Attempt has been made to date the alkaline suites of India on the basis of fission track analysis of apatite. The alkaline plutons of the Eastern Ghats Belt appear to be related to a late Precambrian tecto-igneous activity though all the intrusions may not be strictly synchronous. New age data on some alkaline rocks from the Deccan volcanic province indicate the related magmatism to be older than the available age level for the bulk of Deccan lavas. The apparently isolated occurrence of alkaline complex of Mundwara in Sirohi, Rajasthan has been related to Deccan volcanicity on the basis of apatite ages.