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Nishinoshima Lava

• Type locality: Nishinoshima island, Ogasawara city, Tokyo
• Volcanic rocks
• Stratovolcano
• late Pleistocene - Holocene

• Lithofacies: Orthopyroxene clinopyroxene andesite lava (2 flow units), Agglutinates, Pyroclastic surge

• Mode of eruption: Phreatic
• Thickness (A unit): 5 - 20 m or thicker
• Thickness (Agglutinates): ca. 3 m
• Thickness (Pyroclastic surge): ca. 50 cm

------ Conformity, ~~~~~~ Unconformity, ~~~--- Local unconformity, '''/,, Interfingered, :::::: Fault, /--/-- Thrust, +__+__ Ground surface, ?--?-- Unknown

• Distribution: Nishinoshima island, Ogasawara city, Tokyo

• Umino and Nakano (2007) Geology of the Chichijima Retto District, Quadrangle Series, Scale 1:50,000, Geological Survey of Japan, AIST, 71p. (in Japanese with English abstract 3p.)