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Single zircon evaporation ages constraining the growth of the Archaean Aravalli craton, northwestern Indian shield

Published online by Cambridge University Press:  01 May 2009

A. B. Roy  and
A. Kröner
A. B. Roy
Affiliation:
Department of Geology, Mohanlal Sukhadia University, Udaipur 313001, India
A. Kröner
Affiliation:
Institut für Geowissenschaften, Universität Mainz, D 55099 Mainz, Germany
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Abstract

Single grain 207Pb/206Pb zircon ages were determined for granitoids and gneisses which constitute the Archaean basement rocks of the Aravalli craton of Rajasthan, northwestern Indian Shield. The protolith ages for two gneisses, collected from east of Udaipur, are ˜3230 Ma and 2887 Ma respectively. The granitoids display an intrusive relationship with the gneisses and yielded ages ranging between 2666 Ma and 2620 Ma. These ages provide the basis for a geochronological model of evolution of the oldest basement of the Aravalli craton.

Type
Articles
Information
Geological Magazine , Volume 133 , Issue 3 , May 1996 , pp. 333 - 342
Copyright
Copyright © Cambridge University Press 1996

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