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Oshimojo Formation

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

• Lithofacies (Main): Sandstone
• Lithofacies (Minor): Interbedded sandstone and tuffaceous siltstone

• Upper limit: Conformity
• Lower limit: Conformity

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

• Distribution: Tenryu river, Anan city, Nagano pref.; Mikonoya, Anan city, Nagano pref.

• Sako and Hoshi (2014) Jour. Geol. Soc. Japan, vol.120, no.8, pp.255-271 DOI
• Sako and Hoshi (2013) Jour. Geol. Soc. Japan, vol.119, no.11, pp.732-735 DOI