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Kawauchi Formation

• Coherent formation
• middle - late Pleistocene (upper part: 31 ka BP, ¹⁴C; Lower part: 580 - 570 ka, Hwk)
• Correlation: Upper Kitajima Formation

• Sedimentary facies: Marine, Terrestrial
• Depth of water: Shallow marine
• Lithofacies (Upper): Mud, Sandy gravels
• Lithofacies (Lower): Mud, Sandy gravels
• Lithofacies (Bottom): Mud, Sands, Sandy gravels
• Lithofacies (Bottom, Minor): Breccia

• Upper limit: Unconformity (Urado Formation)
• Lower limit: Conformity? (Ogura Formation)

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

• Distribution: Kochi plain, Kochi pref.
• Fossils: Shellfishes
• Tephra: Hwk

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