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Cbg Tephra

Abbr.: Cbg

• Tephra
• middle Miocene - early Pliocene

• Lithofacies: Vitreous volcanic ash

• Host: Shiiya Formation

• Distribution: Niigata pref.

• Kobayashi et al. (1995) Geology of the Kashiwazaki District, Quadrangle Series, Scale 1:50,000, Geological Survey of Japan, 102p. (in Japanese with English abstract 4p.)