Petrology, bulk-rock geochemistry, indicator mineral composition and zircon U-Pb geochronology of the end-Cretaceous diamondiferous Manipur orangeites, Bastar craton, central India - Chalapathi Rao, N.V.; Lehmann, B.; Belousova, E.; Frei, D.; Mainkar, D. (International Kimberlite Conference: Extended Abstracts, 2012)