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Higashimatsunoki Tuff Takeuchi and Kato, 1994

• Tephra
• Miocene (7.7 Ma, FT)

• Lithofacies: Acidic tuff

• Host: Taruda Formation
• Thickness: ca. 4 m

• Distribution: Iida river, Higashimatsunoki, Maki ward, Joetsu city, Niigata pref.

• Takeuchi and Kato (1994) Geology of the Takada-tobu District, Quadrangle Series, Scale 1:50,000, Geological Survey of Japan, 67p. (in Japanese with English abstract 5p.)