Evolution of natrocarbonatite from a wollastonite nephelinite parent: Evidence from the June, 1993 eruption of Oldoinyo Lengai, Tanzania nork Dawson, J, Pyle, D, Pinkerton, H

PHYSICOCHEMICAL PROPERTIES OF ALKALI CARBONATITE LAVAS - DATA FROM THE 1988 ERUPTION OF OLDOINYO LENGAI, TANZANIA nork Dawson, J, Pinkerton, H, Norton, G, Pyle, D

JUNE 1993 ERUPTION OF OLDOINYO-LENGAI, TANZANIA - EXCEPTIONALLY VISCOUS AND LARGE CARBONATITE LAVA FLOWS AND EVIDENCE FOR COEXISTING SILICATE AND CARBONATE MAGMAS nork Dawson, J, Pinkerton, H, Pyle, D, Nyamweru, C