Mafic pyroclastic flows at Santa Maria (Gaua) volcano, Vanuatu : the caldera formation problem in mainly mafic island arc volcanoes /Robin, Claude /Eissen, Jean-Philippe /Monzier, Michel VOLCAN PETROLOGIE LAVE PYROCLASTITE COMPOSITION CHIMIQUE MAGMATISME BASALTE MINERALOGIE DIFFERENTIATION MAGMATIQUE CALDERA 1995 text https://www.documentation.ird.fr/hor/fdi:010013606 fdi:010013606 Robin Claude, Eissen Jean-Philippe, Monzier Michel. Mafic pyroclastic flows at Santa Maria (Gaua) volcano, Vanuatu : the caldera formation problem in mainly mafic island arc volcanoes. 1995, 436-443 EN VANUATU