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Shobu Tephra Yamashita et al., 2006
- Tephra
- Pleistocene (0.6 Ma, FT)
- Lithofacies: Biotite-bearing vitreous volcanic ash
- Distribution: Shobu, Uchiko city, Kita county, Ehime pref.
- Banno et al. (2010) Geology of the Ozu District, Quadrangle Series, Scale 1:50,000, Geological Survey of Japan, AIST, 58p. (in Japanese with English abstract 2p.)