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Nz Tephra

Abbr.: Nz

• Type locality: Niigata prefecture
• Tephra
• middle - late Miocene (8.4, 7.5 Ma, FT)
• Correlation: Ij, Matsunoyama Formation

• Lithofacies: Tuff

• Host: Teradomari Formation

• Distribution: Niigata pref.

• Kobayashi et al. (2002) Geology of the Sanjo District, Quadrangle Series, Scale 1:50,000, Geological Survey of Japan, AIST, 98p. (in Japanese with English abstract 4p.)