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Tm-18 Tephra
Abbr.: Tm-18
- Tephra
- Pleistocene (225,000 yBP, FT)
- Distribution: Kanagawa pref.
- Oka et al. (1979) Geology of the Fujisawa District, Quadrangle Series, Scale 1:50,000, Geological Survey of Japan, 111p. (in Japanese with English abstract 5p.)