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Yumoriyama-Kanayama Welded Tuff (Yamada et al., 1971)
Invalid synonym: Yumoriyama Welded Tuff, Kanayama Welded Tuff
- Type locality (Yumoriyama Welded Tuff): Tsukechigawa river - Mount Yumoriyama, Kashimo, Nakatsugawa city, Gifu prefecture
- Volcanic rocks
- Caldera
- Late Cretaceous - Paleogene
- Intruded by: Hornblende porphyry
- Lithofacies: Rhyolitic dacite welded tuff
- Thickness: ca. 200 - 550 m
- Distribution (East - West): ca. 40 km
- Distribution (South - North): ca. 30 km
- Upper limit: Conformity (Atera Formation)
- Lower limit: Conformity (Akaishi Welded Tuff)
------ Conformity, ~~~~~~ Unconformity, ~~~--- Local unconformity, '''/,, Interfingered, :::::: Fault, /--/-- Thrust, +__+__ Ground surface, ?--?-- Unknown
- Distribution: Tsukechigawa river - Mount Yumoriyama, Kashimo, Nakatsugawa city, Gifu pref.; Shirakawa city - Higashishirakawa city, Kamo county, Gifu pref.; Wakatochidani valley - Kayamadani valley, Osaka town, Gero city, Gifu pref.
- Yamada and Kobayashi (1988) Geology of the Ontakesan District, Quadrangle Series, Scale 1:50,000, Geological Survey of Japan, 136p. (in Japanese with English abstract 9p.)
- Kawada et al. (1988) Geology of the Hagiwara District, Quadrangle Series, Scale 1:50,000, Geological Survey of Japan, 82p. (in Japanese with English abstract 10p.)
- Yamada et al. (1985) Geology of the Takayama District, Quadrangle Series, Scale 1:50,000, Geological Survey of Japan, 111p. (in Japanese with English abstract 9p.)