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2nd stage
- Volcanic rocks
- Pleistocene (ca. 0.2 - 0.13 Ma)
- Sedimentary facies: Lava flow, Pyroclastic rocks, Pyroclastic flow deposit, Pyroclastic fall deposit
- Sedimentary facies (Minor): Debris avalanche deposit
- Lithofacies: Pyroxene andesite
- Lithofacies (Minor): Basalt, Hornblende andesite, Dacite
------ Conformity, ~~~~~~ Unconformity, ~~~--- Local unconformity, '''/,, Interfingered, :::::: Fault, /--/-- Thrust, +__+__ Ground surface, ?--?-- Unknown
- Distribution: Nagano pref.
- Nagamori et al. (2003) Geology of the Togakushi District, Quadrangle Series, Scale 1:50,000, Geological Survey of Japan, AIST, 109p. (in Japanese with English abstract 3p.)