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Oiso volcano Isshiki, 1987

• Type locality: Oiso, Niijima island, Niijima city, Tokyo
• Volcanic rocks
• Monogenetic volcano
• Pleistocene

• Sedimentary facies: Lava dome
• Lithofacies: Rhyolite lava

• Distribution (South - North): 1.5 km
• Distribution (East - West): 1 km
• Distribution (Height, above sea level): ca. 100 m
• Upper limit: Unconformity (Shimawakezawa Volcaniclastic Deposits)

• Distribution: Oiso - Shimawakezawa - Takane - Wadahama - Ajiaiso, Niijima island, Niijima city, Tokyo

• Isshiki (1987) Geology of the Nii Jima District, Quadrangle Series, Scale 1:50,000, Geological Survey of Japan, 85p. (in Japanese with English abstract 3p.)