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Pre-Aso volcanic rocks

• Type locality: Kumamoto prefecture
• Volcanic rocks
• Miocene - Pleistocene (6.0 Ma - 360 ka)

• Lithofacies: Andesite, Dacite, Rhyolite
• Lithofacies (Minor): Basalt
• Lithofacies (North wall of caldera): Dacitic pyroclastic rocks
• Lithofacies (Northwest wall of caldera): Andesitic lava
• Lithofacies (Southwest wall of caldera): Andesitic pyroclastic rocks
• Lithofacies (Southeast wall of caldera): Basaltic pyroclastic rocks
• Lithofacies (Northeast wall of caldera): Ryolitic lava, Andesitic lava

• Thickness: 600 m or thicker

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

• Distribution: Kumamoto pref.

• Miyoshi et al. (2009) Jour. Geol. Soc. Japan, vol.115, no.12, pp.672-687 DOI
• Furukawa et al. (2009) Jour. Geol. Soc. Japan, vol.115, no.12, pp.658-671 DOI