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Garnet-biotite-muscovite Granite

• Plutonic rocks
• late Cretaceous - Paleogene (30.3, 23.9 Ma, K-Ar)

• Lithofacies: Garnet biotite muscovite granite, Biotite muscovite granite

• Distribution: Yomogi river, Tainai city, Niigata pref.; Yunohira hot spring - Iide river, Shibata city, Niigata pref.

• Takahashi et al. (1996) Geology of the Iidesan District, Quadrangle Series, Scale 1:50,000, Geological Survey of Japan, 52p. (in Japanese with English abstract 3p.)