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Iizuna volcano

• Volcanic rocks
• Multiple stratovolcano
• Pleistocene (ca. 0.35 - 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

• Distribution (Diameter): ca. 5 km
• Distribution: ca. 180 km²
• Volume: ca. 25 km³

------ 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.)