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1973-74 products

• Type locality: Nishinoshima island, Ogasawara city, Tokyo
• Volcanic rocks
• Stratovolcano
• Holocene (AD1973 - 1974)

• Sedimentary facies: Terrestrial
• Lithofacies: Orthopyroxene clinopyroxene andesite aa lava, Pyroclastic rocks

• Mode of eruption: Phreatic
• Eruptive volume: ca. 40 x 10⁶ ton

------ 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.)