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Ibora Tephra Itoigawa, 1971

Invalid synonym: Enokido Tephra, Kasuike Tephra

• Type locality: Ibora, Chita city, Aichi prefecture
• Tephra
• Pleistocene
• Correlation: Nagakute 0 Tephra

• Lithofacies: Volcanic ash

• Host: Tokoname Formation
• Thickness: 0.1 - 3 m

• Distribution: Ibora, Chita city, Aichi pref.;Yokosuka highschool - Hirajima, Yokosuka town, Tokai city, Aich pref.

• Yoshida and Ozaki (1986) Geology of the Handa District, Quadrangle Series, Scale 1:50,000, Geological Survey of Japan, 98p. (in Japanese with English abstract 4p.)