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Mizuho Volcanic Rocks Kaneko, 1988

• Type locality: Lake Hokuryu, Iiyama city, Nagano prefecture
• Volcanic rocks
• early Pleistocene

• Lithofacies: Augite hypersthene andesite pyroclastic rocks, Lava

• Thickness: ca. 50 m
• Upper limit: Unconformity (Hokuryuko Lava)

• Distribution: Lake Hokuryu - Godo - Kosuge, Iiyama 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.)