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Soyakyo Andesite (Kutsuzawa et al., 1966) Ozawa et al., 1981

• Type locality: Soya valley, Kawabe, Akita city, Akita prefecture
• Volcanic rocks
• Dykes, Sills
• Miocene
• Intruded in: Lower Funakawa Formation, Onnagawa Formation

• Lithofacies: Pyroxene andesite lava

• Distribution: ca. 1.5 x 4.0 km²

• Distribution: Soya valley, Kawabe, Akita city, Akita pref.

• Ozawa et al. (1981) Geology of the Taiheizan District, Quadrangle Series, Scale 1:50,000, Geological Survey of Japan, 69p. (in Japanese with English abstract 4p.)