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Tozan Rhyolite Member
- Type locality: Western flank of Mount Tozan, Higashinaruse city, Okachi county, Akita prefecture
- Volcanic rocks
- Lithofacies: Rhyolite lava, Agglomerate, Lapilli tuff
------ Conformity, ~~~~~~ Unconformity, ~~~--- Local unconformity, '''/,, Interfingered, :::::: Fault, /--/-- Thrust, +__+__ Ground surface, ?--?-- Unknown
- Distribution: Western flank of Mount Tozan, Higashinaruse city, Okachi county, Akita pref.
- Kitamura (1965) Yakeishi-dake, Explanatory Text of the Geological Map of Japan, Scale 1:50,000, Geological Survey of Japan, 40p. (in Japanese with English abstract 8p.)