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Otoyama Tuff Member

• Volcanic rocks
• Cretaceous

• Lithofacies: Welded tuff, Tuff, Siltstone

• Thickness: 530 m

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

• Distribution: Yamaguchi pref.

• Yoshida et al. (2009) Jour. Geol. Soc. Japan, vol.115, no.12, pp.643-657 DOI