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Hanshima volcano Isshiki, 1987

• Type locality: Hanshima island, Niijima city, Tokyo
• Volcanic rocks
• Monogenetic volcano
• Pleistocene - Holocene

• Sedimentary facies: Lava dome
• Lithofacies: Biotite rhyolite lava

• Distribution (South - North): 300 m
• Distribution (East - West): 600 m
• Distribution (Height): 90 m
• Upper limit: Unconformity (Pyroclastic surge deposit of Mukaiyama volcano)

• Distribution: Hanshima 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.)