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Kokuzo Volcanic Rocks (Saito, 1955) Akahane et al., 1992

• Type locality: Mount Kokuzo, Iiyama city - Kijimadaira city, Shimotakai county - Nakano city, Nagano prefecture
• Volcanic rocks
• early Pleistocene

• Lithofacies: Hypersthene augite andesite pyroclastic rocks
• Lithofacies (Minor): Lava

• Thickness: 300 - 400 m
• Upper limit: Unconformity (Takinosawa Volcanic Rocks, Kosha Volcanic Rocks)

• Distribution: Mount Kokuzo, Iiyama city - Kijimadaira city, Shimotakai county, Nakano city, 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.)
• Akahane et al. (1992) Geology of the Nakano District, Quadrangle Series, Scale 1:50,000, Geological Survey of Japan, 106p. (in Japanese with English abstract 4p.)