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Tate Tuff Takayanagi et al., 1978

Invalid synonym: T2 Tuff Member

• Tephra
• Miocene
• Correlation: Y-1 Tephra

• Sedimentary facies: Dry terrestrial
• Lithofacies: One pyroclastic flow deposit
• Lithofacies: Pumice tuff, Tuff breccia, Lapilli tuff
• Sedimentary structures (Top): Graded bedding

• Host: Itahana Formation
• Thickness: ca. 15 - 40 m

• Distribution: Usui river, Goryo, Matsuida city, Annaka city, Gunma pref.: Hachigaito - Sasahara - Sosui - Fujinoki - Kaitozawa - Masudagawa - Tsukumo river, Annaka city, Gunma pref.

• Geshi and Takeuchi (2012) Geology of the Haruna San District, Quadrangle Series, Scale 1:50,000, Geological Survey of Japan, AIST, 79p. (in Japanese with English abstract 3p.)