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Crustal geodynamics from the Archaean Bundelkhand Craton, India: constraints from zircon U–Pb–Hf isotope studies
L. SAHA, D. FREI, A. GERDES, J. K. PATI, S. SARKAR, V. PATOLE, A. BHANDARI, P. NASIPURI
Journal: Geological Magazine / Volume 153 / Issue 1 / January 2016
Published online by Cambridge University Press: 21 October 2015, pp. 179-192
Print publication: January 2016
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A comprehensive study based on U–Pb and Hf isotope analyses of zircons from gneisses has been conducted along the western part (Babina area) of the E–W-trending Bundelkhand Tectonic Zone in the central part of the Archaean Bundelkhand Craton. 207Pb–206Pb zircon ages and Hf isotopic data indicate the existence of a felsic crust at ~ 3.59 Ga, followed by a second tectonothermal event at ~ 3.44 Ga, leading to calc-alkaline magmatism and subsequent crustal growth. The study hence suggests that crust formation in the Bundelkhand Craton occurred in a similar time-frame to that recorded from the Singhbhum and Bastar cratons of the North Indian Shield.

Geochemistry and original nature of Precambrian khondalites in the Eastern Ghats, Orissa: a discussion
J. K. Nanda, U. C. Pati
Journal: Earth and Environmental Science Transactions of The Royal Society of Edinburgh / Volume 82 / Issue 1 / 1991
Published online by Cambridge University Press: 03 November 2011, pp. 87-88
Print publication: 1991
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While congratulating the authors for the wealth of geochemical data on a very important Precambrian lithological assemblage of India, known commonly as khondalites, which constitute a major part of the Eastern Ghats mobile belt bordering the eastern fringes of the Indian Peninsula, we have a few comments to offer on the hypothesis propounded by the authors (Dash et al. 1987).