[ Top ] [ Japanese ]

Ndp Tephra Kurokawa et al., 1987

Abbr.: Ndp

• Type locality: Natsudo, Teradomari, Nagaoka city, Niigata prefecture
• Tephra
• middle - late Miocene (7.6, 6.84 Ma, FT)
• Correlation: Susobana Formation, Kanaya Tuff Member

• Sedimentary facies: Turbidite
• Lithofacies: Pumiceous tephra

• Thickness: 300 cm or thicker
• Host: Teradomari Formation

• Distribution: Natsudo - Gomoto river, Teradomari, Nagaoka city, Niigata pref.; Ishiji - Omachi, Izumozaki city, Santo county, 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.)
• Kobayashi et al. (1993) Geology of the Izumozaki District, Quadrangle Series, Scale 1:50,000, Geological Survey of Japan, 91p. (in Japanese with English abstract 4p.)