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Masukawagawa Andesites

• Type locality: Masukawa, Sotogahama city, Higashitsugaru county, Aomori prefecture
• Volcanic rocks
• Pliocene
• Contemporaneous heterotopic facies: Fudotaki Formation?

• Lithofacies: Andesite lava

• Lower limit: Conformity? (Mimmaya Rhyolites)

• Distribution: Masukawa, Sotogahama city, Higashitsugaru county, Aomori pref.

• Ota et al. (1957) Mimmaya, Explanatory Text of the Geological Map of Japan, Scale 1:50,000, Geological Survey of Japan, 30p. (in Japanese with English abstract 5p.)