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Kiyotaki Volcanics Kato and Akahane, 1986

• Type locality: up to 750 m elevation of Kiyotaki, Matsushiro town, Nagano city, Nagano prefecture
• Volcanic rocks
• Pliocene (5.4 Ma, K-Ar)

• Lithofacies: Olivine-bearing augite andesite lava
• Lithofacies (Minor): Volcanic breccia

• Thickness: ca. 100 m
• Source: Mount Kimyosan
• Upper limit: Conformity (Amakazariyama Volcanics), Unconformity (Higashijo Volcanics)
• Lower limit: Unconformity (Bessho Formation, Quartz diorite)

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

• Distribution: up to 750 m above sea level of Kiyotaki, Matsushiro town, Nagano city, Nagano pref.; southwestern flank of Mount Kimyosan - southern flank of Mount Amakazari, Nagano city, Nagano pref.

• Kato and Akahane (1986) Geology of the Nagano District, Quadrangle Series, Scale 1:50,000, Geological Survey of Japan, 120p. (in Japanese with English abstract 5p.)