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Kasagatakesancho Welded Tuff Harayama, 1990
- Type locality: summit of Mount Kasagatke - Kasagatakesancho villa, Okuhidaonsengo, Takayama city, Gifu prefecture
- Volcanic rocks
- Late Cretaceous (64.6 Ma, K-Ar)
- Lithofacies (Upper): Rhyolitic dacite
- Lithofacies (Lower): Rhyolite
- Lithofacies: Welded tuff (A cooling unit)
------ Conformity, ~~~~~~ Unconformity, ~~~--- Local unconformity, '''/,, Interfingered, :::::: Fault, /--/-- Thrust, +__+__ Ground surface, ?--?-- Unknown
- Distribution: Mount Kasagatake - Mount Nukedodake, Okuhidaonsengo, Takayama city, Gifu 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.)
- Harayama (1990) Geology of the Kamikochi District, Quadrangle Series, Scale 1:50,000, Geological Survey of Japan, 175p. (in Japanese with English abstract 11p.)