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Sanda Formation Ozaki and Matsuura, 1988
Invalid synonym: Arino Formation
- Type locality: southwestern part of Sanda city, Hyogo prefecture
- Coherent formation
- Eocene - Oligocene
- Sedimentary facies: Fluvial, Lacustrine
- Sedimentary facies (Upper): Lacustrine
- Sedimentary facies (Middle): Alluvial fan, margin of Alluvial fan, Braided river
- Sedimentary facies (Lower): Meandering river, Lacustrine
- Lithofacies (Upper): Mudstone
- Lithofacies (Middle): Conglomerate
- Lithofacies (Lower): Mudstone, Sandstone
------ Conformity, ~~~~~~ Unconformity, ~~~--- Local unconformity, '''/,, Interfingered, :::::: Fault, /--/-- Thrust, +__+__ Ground surface, ?--?-- Unknown
- Distribution: southwestern part of Sanda city, Hyogo pref.; Yokawa town, Miki city, Hyogo pref.; Tojo town, Kato city, Hyogo pref.; Arino town - Dojo town - Hata town, Kobe city, Hyogo pref.; Yamaguchi town, Nishinomiya city, Hyogo pref.
- Matsuura et al. (1995) Geology of the Hirone District, Quadrangle Series, Scale 1:50,000, Geological Survey of Japan, 110p. (in Japanese with English abstract 6p.)
- 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.)