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J3 Tephra Tokuhashi and Endo, 1984
Abbr.: J3
Invalid synonym: Hy4, Kn-1
- Tephra
- Pleistocene
- Correlation: Kn-1
- Lithofacies: Volcanic ash
- Distribution: Chiba pref.
- Tokuhashi and Endo (1984) Geology of the Anesaki District, Quadrangle Series, Scale 1:50,000, Geological Survey of Japan, 136p. (in Japanese with English abstract 6p.)