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Kurotani Lava Harayama, 1990

• Type locality: Shiramizudani valley, Ashiaraidani valley, Okuhidaonsengo, Takayama city, Gifu prefecture
• Volcanic rocks
• Pleistocene (15.2 ka)

• Lithofacies: Biotite hornblende augite olivine hypersthene andesite lava (more than 2 flow iunits)
• Lithofacies (Minor): Clinker
• Sedimentary structures: Coloumnar joint

• Thickness: ca. 150 m
• Upper limit: Unconformity (Nakao Pyroclastic Flow Deposit, Nakaotoge Lava, Kurotani Debris Avalanche Deposit)
• Lower limit: Unconformity (Shiramizudani Pyroclastic Rocks)

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

• Distribution: Shiramizudani valley - Kurotani valley - Yakedake mountain villa, Okuhidaonsengo, Takayama city, Gifu pref.

• Oikawa et al. (2010) Jour. Geol. Soc. Japan, vol.116, Supplement, pp.49-61 DOI
• Harayama (1990) Geology of the Kamikochi District, Quadrangle Series, Scale 1:50,000, Geological Survey of Japan, 175p. (in Japanese with English abstract 11p.)