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Shigenobugawa Formation

• Coherent formation
• middle - late Pleistocene (Upper: 29 - 26 ka, Tephra; Middle, 95 - 85 ka, Tephra)
• Correlation: Upper Kitajima Formation

• Sedimentary facies (Upper): Terrestrial
• Sedimentary facies (Middle): Shallow marine
• Lithofacies (Upper): Sandy gravels
• Lithofacies (Middle): Sands, Mud
• Lithofacies (Lower): Sandy gravels

• Upper limit: Unconformity? (Matsuyama Formation)

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

• Distribution: Matsuyama plain, Ehime pref.
• Fossils: Shellfishes

• Kawamura and Nishiyama (2019) Jour. Geol. Soc. Japan, vol.125, no.1, pp.87-105 DOI