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Dayoshi Formation
- Type locality: Dayoshi, Nyukawa town, Takayama city, Gifu prefecture
- Accretionary complex
- Deposition (Shale): Middle Jurassic
- Jurassic
- Correlation: Funafuseyama Unit
- Intruded by: Shimonohara Granodiorite, Andesite dike
- Sedimentary facies: Marine
- Lithofacies: Mélange facies
- Matrix: Slate, Mudstone
- Exotic blocks (Crusts): Sandstone, Chert, Basalt, Limestone
- Hirayu Complex (Takayama, Gifu pref.)
- [ Upper ]
- /--/--/--/--/-
- Dayoshi Formation
- /--/--/--/--/-
- [ Lower ]
------ Conformity, ~~~~~~ Unconformity, ~~~--- Local unconformity, '''/,, Interfingered, :::::: Fault, /--/-- Thrust, +__+__ Ground surface, ?--?-- Unknown
- Distribution: Dayoshi, Nyukawa town, Takayama city, Gifu pref.
- Fossils (Shale): Radiolarians
- 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.)