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Dochu Formation Mizuno, 1987

Invalid synonym: Dochu Gravel

• Coherent formation
• early - middle Pleistocene

• Sedimentary facies: Fluvial
• Sedimentary facies: Alluvial fan
• Sedimentary facies (South): Main stream
• Lithofacies: Gravels
• Lithofacies (Minor): Silt

• Thickness: ca. 60 m

• Distribution: Umaji - Inokubo - Tachino - Seiriki - Kamonomiya, Miyoshi city, Tokushima pref.
• Fossils (Plants): Metasequoia sp. (Cones)
• Tephra: Dochu, Ideguchi

• Noda et al. (2021) Geology of the Ikeda District, Quadrangle Series, Scale 1:50,000, Geological Survey of Japan, AIST, 150p. (in Japanese with English abstract 5p.)