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Uykp Tephra Higuchi et al., 2001

Synonym.: Uykp

• Type locality: Okuno creek, Ushigakubi, Sanjo city, Niigata prefecture
• Tephra
• Pliocene
• Correlation: Ykp

• Lithofacies: Pumice tuff

• Host: Kakuma Formation
• Thickness: 15 cm

• Distribution: Okuno creek, Ushigakubi, Sanjo city, Niigata pref.

• Kudo et al. (2011) Geology of the Kamo District, Quadrangle Series, Scale 1:50,000, Geological Survey of Japan, AIST, 162p. (in Japanese with English abstract 4p.)