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Akaishigawa Diorite Porphyrite Ozawa et al., 1983

• Type locality: Akaishi river, Ajigasawa city, Nishitsugaru county, Aomori prefecture
• Plutonic rocks
• Miocene

• Lithofacies: Augite diorite porphyrite

• Distribution: 1.5 x 6 km², and smaller ones

• Distribution: Akaishi river, Ajigasawa city, Nishitsugaru county, Aomori pref.; Tokkomori, Fujisato city, Yamamoto county, Akita pref.; Ichinomata creek, Mase river, Hachimori, Happo city, Yamamoto county, Akita pref.

• Ozawa et al. (1983) Geology of the Nakahama District, Quadrangle Series, Scale 1:50,000, Geological Survey of Japan, 62p. (in Japanese with English abstract 4p.)