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Oji Tephra Mizuno, 1992

• Type locality: Oji, Awaji city, Hyogo prefecture
• Tephra
• Pleistocene

• Lithofacies: Vitreous volcanic ash

• Host: Aihara Member
• Thickness: 25 - 35 cm

• Distribution: Shizuki - Oji, Awaji city, Hyogo pref.

• Takahashi et al. (1992) Geology of the Sumoto District, Quadrangle Series, Scale 1:50,000, Geological Survey of Japan, 107p. (in Japanese with English abstract 5p.)