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Shimoebiike Tuff Matsunoyama-cho History Compilation Committee, 1991

• Tephra
• Miocene - Pliocene (2.6 Ma, FT)

• Lithofacies: Tuff

• Host: Tamugigawa Formation
• Thickness: ca. 4 - 7 m

• Distribution: Amamizushima - Daigonji, Matsunoyama, Tokamachi city, Niigata pref.

• Takeuchi et al. (2000) Geology of the Matsunoyama Onsen District, Quadrangle Series, Scale 1:50,000, Geological Survey of Japan, 76p. (in Japanese with English abstract 5p.)