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Hidarimatadani Formation Harayama, 1990

It is not known to which geological unit this formation belongs.

• Type locality: Hidarimatadani valley - Suiendani valley, Okuhidaonsengo, Takayama city, Gifu prefecture
• Coherent formation
• early Cretaceous
• Intruded by: Okumarusawa Granite, Diorite

• Sedimentary facies: Terrestrial?
• Lithofacies: Sandstone
• Lithofacies (Minor): Interbedded sandstone and mudstone, Conglomerate

• Thickness: ca. 800 - 1,500 m or thicker

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

• Distribution: Hidarimatadani valley - Suiendani valley, Okuhidaonsengo, Takayama city, Gifu pref.; Iozawa creek, Taira, Omachi city, Nagano pref.
• Fossils: Fern

• 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.)