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Ts-9 Tephra
Abbr.: Ts-9
- Lithofacies: Pumice
- Lithofacies (Basal): Volcanic sands
- Distribution: Kanagawa pref.
- Mitsunashi and Kikuchi (1982) Geology of the Yokohama District, Quadrangle Series, Scale 1:50,000, Geological Survey of Japan, 105p. (in Japanese with English abstract 4p.)