Physical volcanology, geomorphology, and cosmogenic 3He dating of the youngest kimberlite volcanoes on Earth (the Holocene Igwisi Hills volcanoes, Tanzania) - Brown, R.J.; Manya, S.; Buisman, I.; Sparks, R.S.J.; Field, M.; Stuart, F.M.; Fontana, G. (International Kimberlite Conference: Extended Abstracts, 2012)