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Uchinomi Formation

• Volcanic rocks
• Setouchi volcanic belt
• Submarine volcano
• middle Miocene (14.4 - 14.3 Ma, K-Ar, Ar-Ar, FT, U-Pb)

• Lithofacies: Felsic rocks

• Lower limit: Unconformity (Ryoke Granitoids, Hiroshima Granites, Tonosho Group)

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

• Distribution: Shodoshima city, Shodo county, Kagawa pref.

• Noda et al. (2017) Geology of the Kan-onji District, Quadrangle Series, Scale 1:50,000, Geological Survey of Japan, AIST, 96p. (in Japanese with English abstract 4p.)
• Tatsumi et al. (2010) Jour. Geol. Soc. Japan, vol.116, no.12, pp.661-679 DOI
• Tatsumi et al. (2009) Jour. Geol. Soc. Japan, vol.115, Supplement, pp.15-20 DOI