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Himenuma Pyroclastic Flow Deposit
- Tephra
- Yokomuki caldera forming stage pyroclastic flow
- late Miocene (5.0 Ma, FT)
- Lithofacies: Biotite dacite
- Lithofacies: Lapilli tuff, Tuff breccia
- Yokomuki Formation
- [ Upper ]
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- Post-caldera stage intrusive rocks
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- Post-caldera-stage caldera lake-fill deposit
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- Himenuma Pyroclastic Flow Deposit / Debris avalanche deposit
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- [ Lower ]
------ Conformity, ~~~~~~ Unconformity, ~~~--- Local unconformity, '''/,, Interfingered, :::::: Fault, /--/-- Thrust, +__+__ Ground surface, ?--?-- Unknown
- Distribution: Fukushima pref.
- Furukawa et al. (2018) Geology of the Azuma Yama District, Quadrangle Series, Scale 1:50,000, Geological Survey of Japan, AIST, 74p. (in Japanese with English abstract 3p.)