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Gjd70 Tephra Kurokawa et al., 2000
Synonym.: Gjd70
- Type locality: Gejogawa dam, Kamo city, Niigata prefecture
- Tephra
- Pliocene (ca. 1.45 Ma)
- Lithofacies: Tuff
- Sedimentary structures: Parallel foliation
- Distribution: Gejogawa dam, Kamo city, Niigata pref.
- Kudo et al. (2011) Geology of the Kamo District, Quadrangle Series, Scale 1:50,000, Geological Survey of Japan, AIST, 162p. (in Japanese with English abstract 4p.)