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Mizuo-Oiriyama volcano

• Volcanic rocks
• early Pleistocene

• Lithofacies:

• Source: Mount Kenashiyama
• Upper limit: Unconformity (Volcanic-fan deposit)

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

• Distribution: Nagano pref.

• Yanagisawa et al. (2000) Geology of the Iiyama District, Quadrangle Series, Scale 1:50,000, Geological Survey of Japan, 144p. (in Japanese with English abstract 6p.)