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Hitotsunashi Formation

• Volcanic rocks
• Age unknown

• Lithofacies: Volcanic conglomerate, Andesite tuff, Tuff breccia
• Structures: Schistose

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

• Distribution: Naradani - Hitotsunashidani valley, Kiyomi town, Takayama city, Gifu pref.

• Tsukada et al. (2004) Jour. Geol. Soc. Japan, vol.110, no.10, pp.640-658 DOI
• 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.)