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Okamura Formation

• Coherent formation
• Pliocene (Pleistocene? 1.4 Ma, Tephra)

• Sedimentary facies: Fluvial, small scale Lacustrine
• Lithofacies (Main): Conglomerate
• Lithofacies (Minor): Sandstone

• Thickness: 70 m or thicker

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

• Distribution: Komatsu city - Saijo city - Niihama city, Ehime pref.
• Tephra: Okamura Tuff Bed (1.4 Ma, FT)

• Kawamura and Nishiyama (2019) Jour. Geol. Soc. Japan, vol.125, no.1, pp.87-105 DOI
• Ikeda et al. (2017) Jour. Geol. Soc. Japan, vol.123, no.7, pp.445-470 DOI