Jayananda, M.; Peucat, J-J; Chardon, D; Krishna Rao, B.; Fanning, Christopher; Corfu, F
We present SIMS U-Pb zircon ages and Nd isotope data for the felsic volcanic rocks from seven Neoarchean greenstone belts of the Eastern Dharwar craton (EDC) and from the Chitradurga greenstone belt in the Western Dharwar craton (WDC). Zircon ages show bimodal age distribution of felsic volcanism. The ca. 2.70-2.65Ga felsic volcanic event is contemporaneous with 2.7Ga mafic greenstone volcanism and emplacement of juvenile tonalitic to granodioritic crust, while 2.58-2.54Ga felsic volcanics are...[Show more]
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