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Nishidaiten-Nishiazumayama volcano

• Volcanic rocks
• Volcanic cone
• middle Pleistocene (0.41 Ma, K-Ar)

• Lithofacies: Quartz orthopyroxene clinopyroxene andesite
• Lithofacies: Agglutinates, Lava

• Source: Mount Nishidaiten, Mount Nishiazumayama
• Lower limit: Unconformity (Nakadaiten-Higashidaiten volcano)

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

• Distribution: Onogawa-fudoutaki fall - Nakanosawa, Kitashiobara city, Yama county, 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.)
• Hasegawa et al. (2011) Jour. Geol. Soc. Japan, vol.117, Supplement, pp.33-48 DOI