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Osuzuyama Acidic Igneous Rocks

• Osuzuyama caldera
• Plutonic rocks
• middle Miocene (15.2 - 1.51 Ma, K-Ar)

• Lithofacies: Rhyolitic pyroclastic rocks, Dacitic pyroclastic rocks, Granodiorite porphyry

• Eruptive volume: ca. 810 km³

• Distribution: Miyazaki pref.

• Miura and Wada (2007) Jour. Geol. Soc. Japan, vol.113, no.7, pp.283-295 DOI