6-3 Aramaki-Aza-Aoba, Aobaku, Sendai 980-8578, Japan Pyrrhotite (Po) occurs as inclusions and as isolated...the 1914-15 eruption of the Sakurajima volcano, Kyushu, Japan. The Po crystals have partly reacted to...Pyrrhotite, Desulfidation, Spongy magnetite, Sakurajima volcano, Magma ascent rate INTRODUCTION Recent advances...the 1991 eruption products of the Mt. Pinatubo volcano from the viewpoint of the ‘excess sulfur’ problem...1914-15 (Taisho) eruption of the Sakurajima volcano, Kyushu, Japan, and determined their phases and chemical |