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Imabetsu Andesites (Ota, Ozawa and Ono, 1957) Tsushima and Uemura, 1959

Invalid synonym: Imabetsu Volcanic Rocks

• Type locality: Osagawa river, Imabetsu city, Higashitsugaru county, Aomori prefecture
• Volcanic rocks
• Pliocene
• Contemporaneous heterotopic facies: Upper Genpachimori Formation, Fudotaki Formation
• Correlation: Wakinosawa Andesites

• Lithofacies: Two-pyroxene andesitic lava - tuff breccia
• Lithofacies (Lower): Dacite lava - dike

• Upper limit: Unconformity (Hamana Formation)
• Lower limit: Conformity (Fudotaki Formation)

• Distribution: Osagawa river - Uemata river - Haha creek, Imabetsu city, Higashitsugaru, Aomori pref.; Mount Hakamakoshi, Higashitsugaru county, Aomori pref.; Mount Hamana, Imabetsu city, Higashitsugaru county, Aomori pref.; Nanatsuishi, Kodomari, Nakadomari city, Kitatsugaru county, Aomori pref.

• Uemura et al. (1959) Kanita, Explanatory Text of the Geological Map of Japan, Scale 1:50,000, Geological Survey of Japan, 30p. (in Japanese with English abstract 5p.)
• Tsushima and Uemura (1959) Kodomari, Explanatory Text of the Geological Map of Japan, Scale 1:50,000, Geological Survey of Japan, 45p. (in Japanese with English abstract 5p.)
• Saito and Uemura (1957) Horozuki, Explanatory Text of the Geological Map of Japan, Scale 1:50,000, Geological Survey of Japan, 26p. (in Japanese with English abstract 7p.)
• 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.)