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Kumano Acidic Rocks

Synonym: Kumano Acidic Igneous Rocks

• Plutonic rocks
• Granitoids of Outer zone, Southwest Japan
• Large scale felsic igneous rocks associated with caldera formation
• Felsic volcano-plutonic complex
• middle Miocene (15 - 14 Ma, K-Ar; 15 - 13 Ma, FT)
• Intruded in: Hidakagawa Group, Otonashigawa Group, Muro Group, Kumano Group

• Lithofacies: Felsic rocks
• Lithofacies: Granite porphyry, Lapilli tuff, Rhyolite

• Eruptive volume: ca. 780 km³
• Distribution: 60 x 25 km²
• Volume: ca. 300 km³

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

• Distribution: Ichiura, Isozaki village, Kumano city, Mie pref.; Oyamaura, Kihoku city, Kitamuro county, Mie pref.

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