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Oro Formation

Bottom formation of Nansetsu Subgroup

• Volcanic rocks
• Miocene

• Lithofacies: Rhyolitic pumiceous volcanic lapilli tuff

• Lower limit: Unconformity (Kadoya Formation)

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

• Distribution: Shitara region, Aichi pref.

• Hoshi and Saida (2009) Jour. Geol. Soc. Japan, vol.115, no.5, pp.193-205 DOI