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Otaki Lava Fujinawa, 1980

• Volcanic rocks
• Pleistocene

• Lithofacies: Calc-alkaline
• Lithofacies: Olivine-bearing augite hypersthene andesite
• Lithofacies: Lava

• Thickness: 50 m or thicker
• Upper limit: Unconformity (Oshosan Lava)
• Lower limit: Unconformity (Numajiri Pyroclastic Flow Deposit, Choshigataki Lava, Akagidaira Lava, Yakushidake Lava)

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

• Distribution: western slope of Mount Oshoyama, Nihonmatsu city, Fukushima pref.; Mizukami - Ishimushiro, Koriyama city, Fukushima pref.

• Sakaguchi (1995) Geology of the Nihonmatsu District, Quadrangle Series, Scale 1:50,000, Geological Survey of Japan, 79p. (in Japanese with English abstract 4p.)