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Hap-3 Tephra
Abbr.: Hap-3
- Type locality: Kunisawa river - Ishikawa pass, Oguni town, Nagaoka city, Niigata prefecture
- Tephra
- Pliocene - Pleistocene
- Lithofacies: Hornblende dacite lapilli tuff
- Hap Tephra
- [ Upper ]
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- Hap-3
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- Hap-2
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- Hap-1
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- [ Lower ]
------ Conformity, ~~~~~~ Unconformity, ~~~--- Local unconformity, '''/,, Interfingered, :::::: Fault, /--/-- Thrust, +__+__ Ground surface, ?--?-- Unknown
- Distribution: Kunisawa river - Ishikawa pass, Oguni town, Nagaoka city, Niigata pref.
- Kobayashi et al. (1993) Geology of the Izumozaki District, Quadrangle Series, Scale 1:50,000, Geological Survey of Japan, 91p. (in Japanese with English abstract 4p.)
- Kobayashi et al. (1989) Geology of the Okanomachi District, Quadrangle Series, Scale 1:50,000, Geological Survey of Japan, 112p. (in Japanese with English abstract 5p.)