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Shiratakiyama Formation Yoshida et al., 2009

• Shiratakiyama caldera
• Volcano-plutonic complex
• Volcanic rocks
• Late Cretaceous

• Lithofacies: Andesite, Rhyolite

• Thickness: 1,370 m or thicker

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

• Distribution: Ogawachi, Yumoto, Fukakawa, Nagato city, Yamaguchi pref.; Mount Tenjogatake, Nagato city - Shimonoseki city, Yamaguchi pref.

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