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Upper Yabitsugawa Lava
Invalid synonym: Arinotowatari Lava
- Stratovolcano
- Old edifice
- Volcanic rocks
- Pleistocene
- Lithofacies: Calc-alkaline
- Lithofacies: Hypersthene augite andesite
- Lithofacies: Large plagioclase phenocrysts deficient
- Lithofacies: Lava (more than 2 flow units)
------ Conformity, ~~~~~~ Unconformity, ~~~--- Local unconformity, '''/,, Interfingered, :::::: Fault, /--/-- Thrust, +__+__ Ground surface, ?--?-- Unknown
- Distribution: Mount Inakura, Kisakata, Nikaho city, Akita pref.; Tanibitsu fall, Torigoe 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.)