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Omine-Odai Acidic Rocks

Synonym: Omine-Odai Acidic Igneous Rocks

• Omine-Odai caldera
• Plutonic rocks
• Granitoids of Outer zone, Southwest Japan
• Large scale felsic igneous rocks associated with caldera formation
• Felsic volcano-plutonic complex
• middle Miocene (13.7 Ma, K-Ar)

• Eruptive volume: ca. 1,260 km³

------ Transitional, ~~~~~~ Intrusive, :::::: Fault, /--/-- Thrust, +__+__ Ground surface, ?--?-- Unknown

• Distribution: Nara pref.

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