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Kabuyama Andesite (Taguchi, 1962) Ozawa et al., 1979

Invalid synonym: Kabuyama Andesite Breccia Member

• Type locality: Mount Kabu, Mamurogawa city, Mogami county, Yamagata prefecture
• Volcanic rocks
• Submarine volcano
• Lava dome
• Miocene
• Correlation: Kuromori Tuff Breccia Member

• Lithofacies: Hypersthene augite andesite
• Lithofacies: Lava (Hyaloclastite), Tuff breccia, Volcanic breccia, Lapilli tuff
• Lithofacies (Minor): Basalt volcaniclastic rocks, Dacite lava, Mudstone, Sandstone, Conglomerate

• Thickness: 200 - 600 m or thicker
• Upper limit: Conformity (Takasaka Acid Volcanic Rock, Kamikomata Sandstone and Conglomerate Member), Interfingered (Kusanagi Formation)
• Lower limit: Interfingered (Kusanagi Formation)

------ Conformity, ~~~~~~ Unconformity, ~~~--- Local unconformity, '''/,, Interfingered, :::::: Fault, /--/-- Thrust, +__+__ Ground surface, ?--?-- Unknown

• Distribution: Mount Kabu - Mount Omori - Kamikomata - Takasaka - Shirinashizawa, Mamurogawa city, Mogami county, Yamagata pref.;Matsunegawa - Yamanota - Yokohori, Innai, Yuzawa city, Akita pref.

• Nakano and Tsuchiya (1992) Geology of the Chokaisan and Fukura District, Quadrangle Series, Scale 1:50,000, Geological Survey of Japan, 138p. (in Japanese with English abstract 7p.)
• Tsuchiya (1989) Geology of the Osawa District, Quadrangle Series, Scale 1:50,000, Geological Survey of Japan, 85p. (in Japanese with English abstract 6p.)
• Ozawa et al. (1979) Geology of the Yuzawa District, Quadrangle Series, Scale 1:50,000, Geological Survey of Japan, 64p. (in Japanese with English abstract 4p.)