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Washibaike Lava Nakano, 1989

• Type locality: eastern crater wall of Lake Washibaike, Taira, Omachi city, Nagano prefecture
• Volcanic rocks
• Pleistocene

• Lithofacies: Andesite lava

• Source: Lake Washibaike
• Thickness: ca. 30 m
• Upper limit: Unconformity (Washibaike Scoria and Explosion Breccia)
• Lower limit: Unconformity (Funatsu Granitic Rocks, Akazawa Lava)

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

• Distribution: Lake Washibaike, Taira, Omachi city, Nagano pref.

• Harayama et al. (1991) Geology of the Yarigatake District, Quadrangle Series, Scale 1:50,000, Geological Survey of Japan, 190p. (in Japanese with English abstract 8p.)