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Matsuyama Formation

• Coherent formation
• Holocene (6.3 - 6.2 cal ka BP, ¹⁴C)
• Correlation: Tokushima Formation

• Sedimentary facies: Marine
• Lithofacies: Mud, Sands

• Thickness: 4 - 23 m
• Lower limit: Unconformity? (Shigenobugawa Formation)

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

• Distribution: Matsuyama plain, Ehime pref.
• Tephra: K-Ah

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