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Kurumayama Lava

• Volcanic rocks
• Pleistocene

• Lithofacies: Hornblende andesite (several dozen flow units)
• Lithofacies (Minor): Olivine-bearing two-pyroxene andesite

• Thickness (A unit): ca. 20 m

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

• Distribution: Kitaoshio pass, Yonezawa, Chino city, Nagano pref.

• Sawamura and Owa (1953) Suwa, Explanatory Text of the Geological Map of Japan, Scale 1:50,000, Geological Survey of Japan, 45p. (in Japanese with English abstract 4p.)