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Kasukawa Formation
- Type locality: Gifu prefecture
- Accretionary complex
- Deposition (Limestone): Carboniferous, Permian (Fusulinids)
- Jurassic
- Correlation (Upper): Sasamata Formation
- Correlation (Lower): Itanami Group
- Sedimentary facies: Marine
- Lithofacies (Upper): Sandstone-dominant interbedded sandstone and slate
- Lithofacies (Lower): Slate-dominant interbedded slate and sandstone
- Lithofacies (Minor): Limestone, Chert
------ Conformity, ~~~~~~ Unconformity, ~~~--- Local unconformity, '''/,, Interfingered, :::::: Fault, /--/-- Thrust, +__+__ Ground surface, ?--?-- Unknown
- Distribution: Noharadani valley - Shimogare, Ibigawa city, Ibi county, Gifu pref.; Kodera, Ikeda city, Ibi county, Gifu pref.
- Fossils (Limestone): Calcareous algae (Mizzia velebitata)
- Fossils (Limestone, Fusulinids): Codonofusiella paradoxica, Neoschwagerina craticulifera, Neoschwagerina margaritae, Pseudofusulina japonica
- Isomi (1956) Ominagahama, Explanatory Text of the Geological Map of Japan, Scale 1:50,000, Geological Survey of Japan, 51p. (in Japanese with English abstract 6p.)
- Isomi (1955) Ogaki, Explanatory Text of the Geological Map of Japan, Scale 1:50,000, Geological Survey of Japan, 24p. (in Japanese with English abstract 6p.)