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Mitaki Volcanic Rocks

Invalid synonym: Mitaki Lava

• Stratovolcano
• Old edifice
• Volcanic rocks
• Pleistocene
• Intruded by: Basaltic andesite dike

• Lithofacies: Calc-alkaline
• Lithofacies: Hypersthene augite andesite
• Lithofacies (Minor): Hypersthene olivine augite basalt
• Lithofacies: Andesite lava (more than 3 flow units), Tuff breccia, Lapilli tuff
• Lithofacies (Minor): Basalt lava (more than 5 flow units), Scoria flow deposit

• Upper limit: Unconformity (Nasodani Lava, Upper Nasodani Lava, Lower Yabitsugawa Lava)

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

• Distribution: Naso river, Nikaho city, Akita 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.)