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Shunan Group

Tatokoyama Formation is corrected to a member of Abu Group.

• Volcanic rocks
• Caldera fill deposit
• Kibe caldera, Yamaguchi caldera
• Late Cretaceous (93 Ma)
• Intruded by: Hofu Granite

• Lithofacies: Andesite lava, Dacite - Rhyolite pyroclastic rocks
• Lithofacies (Minor): Quartz diorite, Granodiorite, Gabbro

• Upper limit: Unconformity (Abu Group)
• Lower limit: Miyano Formation, Suo Metamorphic Rocks, Kanmon Group

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

• Distribution: Mount Kurokochi, Yamaguchi city, Yamaguchi pref.

• Aiyama and Kanaori (2019) Jour. Geol. Soc. Japan, vol.125, no.7, pp.555-570 DOI
• Imaoka et al. (2019) Jour. Geol. Soc. Japan, vol.125, no.7, pp.529-553 DOI
• Imaoka et al. (2012) Jour. Geol. Soc. Japan, vol.118, no.12, pp.782-800 DOI
• Yoshida et al. (2009) Jour. Geol. Soc. Japan, vol.115, no.12, pp.643-657 DOI
• Kishi et al. (2007) Jour. Geol. Soc. Japan, vol.113, no.9, pp.479-491 DOI