Emphasis on the Permian Oslo Rift, held in Oslo, Norway, July 27-August 5,1977 edited by E.-R. NEUMANN...olOslo, Oslo, Norway and I. B. RAMBERG Geoiogicailnstitute, University olOslo, Oslo, Norway D. Reidel... with Emphasis on the Permian Oslo Rift, Oslo, Norway, 1977. (NATO advanced study institutes series:...79 MINERALOGY OF THE TULLU MOJE ACTIVE VOLCANIC AREA (ARUSSI: ETHIOPIAN RIFT VALLEY) H. Bizouard and...U, K IN THE PLUTONIC ROCKS OF THE OSLO REGION, NORWAY G. Raade 185 CONTENTS vii ORIGIN OF THE MAGMAS |