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Takibuchigawa Lava

• Stratovolcano
• West Chokai edifice
• Volcanic rocks
• Pleistocene

• Lithofacies: Calc-alkaline
• Lithofacies: Hypersthene olivine augite andesite, Hornblende-bearing hypersthene olivine augite andesite
• Lithofacies: Lava (more than 1 - 3 flow units)

• Thickness (A unit): 15 - 20 m or thicker
• Upper limit: Unconformity (Araizawagawa Lava, Minowa Lava)
• Lower limit: Unconformity (Lower Araizawagawa Lava)

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

• Distribution: Araizawa river, Ohira - Masukawa, Yuza city, Akumi county, Yamagata pref.; Takibuchi river, Yuza city, Akumi county, Yamagata pref.

• Nakano and Tsuchiya (1992) Geology of the Chokaisan and Fukura District, Quadrangle Series, Scale 1:50,000, Geological Survey of Japan, 138p. (in Japanese with English abstract 7p.)