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Udoneshima volcano Isshiki, 1987

• Type locality: Udoneshima island, Niijima city, Tokyo
• Volcanic rocks
• Pleistocene - Holocene
• Intruded by: Basalt dikes (more than 20 dikes)

• Sedimentary facies: Stratovolcano
• Lithofacies: Olivine basalt, Augite olivine basalt
• Lithofacies: Aa lava (more than 50 flow units), Scoria fall deposit
• Lithofacies (Minor): Basalt spatter

• Distribution: Udoneshima island - Fuzushine - Otaine - Monoki, 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.)