[ Top ] [ Japanese ]

Onogi Formation Seki, 1939

• Accretionary complex
• Deposition (Limestone): middle Permian (Fusulinids)
• Jurassic
• Contemporaneous heterotopic facies: Ishida Formation, lower Ibukiyama Limestone Formation

• Sedimentary facies: Marine
• Lithofacies: Slate
• Lithofacies (Minor): Limestone, Chert, Greenstones

• Thickness: 200 m or thinner
• Lower limit: Conformity (Samegai Formation)

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

• Distribution: Onogi, Maibara city, Shiga pref.
• Fossils (LImestone, Fusulinids): Concellina? sp., Fusulinella compressa, Neoschwagerina simplex, Parafusulina sp., Pseudofusulina ambigua, Pseudofusulina fusiformis, Pseudofusulina japonica, Pseudofusulina kraffti, Pseudofusulina cf. vulgaris var. globosa, Schwagerina cf. tschernyschewi

• 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.)