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First Setouchi Supergroup

This group is defined as middle Miocene strata but progresses of studies revealed that many of members deposited in older ages, and this supergroup need to be reconsidered.

• Coherent formation
• First Seto Inland Sea
• Sedimentary basin in island arc
• middle Miocene

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

• Distribution: Nagano pref. - Gifu pref. - Kagawa pref. - Miyoshi city - Shobara city, Hiroshima pref. - Niimi city, Okayama pref. - Shimane pref.

• Shinjoe et al. (2018) Jour. Geol. Soc. Japan, vol.124, no.7, pp.533-538 DOI
• Matsubara (2013) Jour. Geol. Soc. Japan, vol.119, no.4, pp.249-266 DOI
• Ikeda et al. (2017) Jour. Geol. Soc. Japan, vol.123, no.7, pp.445-470 DOI
• Tatsumi et al. (2009) Jour. Geol. Soc. Japan, vol.115, Supplement, pp.15-20 DOI