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Takaishigawa Lava

• Volcanic rocks
• Pleistocene

• Sedimentary facies (Lower): Talus deposit
• Lithofacies (Upper): Olivine hypersthene augite andesite
• Lithofacies (Lower): Scoriaceous breccia

• Thickness (Upper): 8 m
• Thickness (Lower): 6 m
• Upper limit: Unconformity (Nobeyamahara Formation)

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

• Distribution: Takaishi river - Ushikubi river, Minamimaki city, Minamisaku county, Nagano pref.

• Kawachi (1974) Geology of the Tateshinayama District, Quadrangle Series, Scale 1:50,000, Geological Survey of Japan, 114p. (in Japanese with English abstract 5p.)