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Kamikozawa Tuff Kurokawa, 1999

• Type locality: Kamikozawa, Myoko city, Niigata prefecture
• Tephra
• late Miocene - early Pliocene
• Correlation (Top): Yot Tephra

• Lithofacies: Pumice tuff
• Sedimentary structures (Upper): Parallel stratification

• Host: lower Tomikura Formation
• Thickness: ca. 20 m

• Distribution: Kamikozawa, Myoko city, Niigata pref.

• Yanagisawa et al. (2000) Geology of the Iiyama District, Quadrangle Series, Scale 1:50,000, Geological Survey of Japan, 144p. (in Japanese with English abstract 6p.)