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Kan-onji Plutonic Rocks

• Type locality: Mount Kotohikiyama, Kanonji city, Kagawa prefecture
• Plutonic rocks
• Cretaceous (94.5, 80.5 Ma, K-Ar; 86.0 Ma, FT)
• Intruded by: Porphyritic granite dikes, Spherulitic rhyolite dikes, Dacite dikes, Diorite dikes

• Lithofacies: Hornblende biotite granodiorite, Biotite granite, Hornblende biotite granite

• Upper limit: Abut unconformity (Mitoyo Group), Unconformity (Izumi Group, Sanuki Group)

• Distribution: Mount Kotohikiyama - Takaya town - Maruyama, Kanonji city, Kagawa pref.; Saita - Koso - Hijidai - Samata, Mitoyo city, Kagawa pref.

• Noda et al. (2017) Geology of the Kan-onji District, Quadrangle Series, Scale 1:50,000, Geological Survey of Japan, AIST, 96p. (in Japanese with English abstract 4p.)