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Heizu Tephra
- Type locality: Heizushinmachi town, Yokkaichi city, Mie prefecture
- Tephra
- Pliocene
- Lithofacies: Vitreous volcanic ash
- Distribution: Heizushinmachi town - Akatsukidai, Yokkaichi city, Mie pref.
- Yoshida et al. (1991) Geology of the Kuwana District, Quadrangle Series, Scale 1:50,000, Geological Survey of Japan, 154p. (in Japanese with English abstract 5p.)