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KRu Tephra Kawabe et al., 1981
Abbr.: KRu
Invalid synonym: KR
- Type locality: Kasugadai, Katsuura city, Chiba prefecture
- Tephra
- Pleistocene
- Distribution: Kasugadai, Katsuura city, Chiba pref.; Matsube, Katsuura city, Chiba pref.
- Tamura et al. (2019) Jour. Geol. Soc. Japan, vol.125, no.1, pp.23-39 DOI