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Hijima Formation
- Accretionary complex
- Permian
- Intruded by: Dolerite, Basalt, Gabbro, Diorite
- Correlation: Oi Formation
- Sedimentary facies: Marine
- Lithofacies: Slate
- Lithofacies (Minor): Sandy slate, Sandstone, Conglomerate, Chert, Limestone, Greenstones
------ Conformity, ~~~~~~ Unconformity, ~~~--- Local unconformity, '''/,, Interfingered, :::::: Fault, /--/-- Thrust, +__+__ Ground surface, ?--?-- Unknown
- Distribution: Onemi - Kuwano, Sayo city, Sayo county, Hyogo pref.; Okayama pref.
- Fossils (Fusulinids): Parafusulina sp., Pseudofusulina sp., Schwagerina sp.
- Yamamoto et al. (2000) Geology of the Tatsuno District, Quadrangle Series, Scale 1:50,000, Geological Survey of Japan, 66p. (in Japanese with English abstract 5p.)
- Kambe and Hirokawa (1963) Sayo, Explanatory Text of the Geological Map of Japan, Scale 1:50,000, Geological Survey of Japan, 29p. (in Japanese with English abstract 8p.)