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Miyanoshita Quartz Diorite Porphyry Chihara et al., 1981

• Plutonic rocks
• Miocene
• Intruded in: Uwano Formation

• Sedimentary facies: Phacolith-form
• Lithofacies: Quartz diorite porphyry
• Lithofacies (Ringsheet): Quartz porphyrite, Andesite

• Distribution: 1 x 0.5 km²

• Distribution: Miyanoshita, Minamiuonuma city, Niigata pref.

• Yanagisawa et al. (1985) Geology of the Tokamachi District, Quadrangle Series, Scale 1:50,000, Geological Survey of Japan, 104p. (in Japanese with English abstract 6p.)