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

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Zircon Geochronology of Berach Granite of Chittorgarh, Rajasthan


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1 Department of Geology, Florida State University, Tallahassee, Florida 32306, United States
 

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Discordant ages of zircons from Berach granite suggest that this granite crystallized around 2610 m.y. ago and lost lead during an episodic event around 710 m.y. The 710 m.y. date probably reflects a response to a regional thermal event also recorded in the 730 m.y. zircon age for the Mt. Abu 'Erinpura type' granite.
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  • Zircon Geochronology of Berach Granite of Chittorgarh, Rajasthan

Abstract Views: 241  |  PDF Views: 161

Authors

T. V. Sivaraman
Department of Geology, Florida State University, Tallahassee, Florida 32306, United States
A. L. Odom
Department of Geology, Florida State University, Tallahassee, Florida 32306, United States

Abstract


Discordant ages of zircons from Berach granite suggest that this granite crystallized around 2610 m.y. ago and lost lead during an episodic event around 710 m.y. The 710 m.y. date probably reflects a response to a regional thermal event also recorded in the 730 m.y. zircon age for the Mt. Abu 'Erinpura type' granite.