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Hosokawa Formation Ozaki and Matsuura, 1988
Invalid synonym: Ogo Formation, Mitsuda Formation
- Type locality: Rengeji temple, Hosokawa town, Miki city, Hyogo prefecture
- Coherent formation
- Eocene - Oligocene
- Sedimentary facies: Fluvial
- Sedimentary facies: Braided river at the front or margin of Alluvial fan
- Lithofacies: Conglomerate
- Lithofacies (Minor): Sandstone, Mudstones
- Sedimentary structures: Inbrication structure, Cross stratification
- Paleocurrent: from North, from East
------ Conformity, ~~~~~~ Unconformity, ~~~--- Local unconformity, '''/,, Interfingered, :::::: Fault, /--/-- Thrust, +__+__ Ground surface, ?--?-- Unknown
- Distribution: Rengeji temple - Momosaka - Kanaya - Horinji, Hosokawa town, Miki city, Hyogo pref.; Shijimi town - Yotsutsuji - Ofutadani - Mizuho - Kurumi, Miki city, Hyogo pref.; Wakimoto town, Ono city, Hyogo pref.
- Tephra: Toda Tuff, Horinji Tuff, Kurumi Tuff
- Ozaki and Matsuura (1988) Geology of the Sanda District, Quadrangle Series, Scale 1:50,000, Geological Survey of Japan, 93p. (in Japanese with English abstract 5p.)
- Huzita and Kasama (1983) Geology of the Kobe District, Quadrangle Series, Scale 1:50,000, Geological Survey of Japan, 115p. (in Japanese with English abstract 8p.)
- Huzita and Kasama (1982) Geology of the Osaka-Seihokubu District, Quadrangle Series, Scale 1:50,000, Geological Survey of Japan, 112p. (in Japanese with English abstract 8p.)