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Habutaki Tephra
- Tephra
- Pleistocene (2.71 Ma)
- Lithofacies: Volcanic ash
- Habutaki Tephra
- [ Upper ]
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- Habutaki III Tephra
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- Habutaki II Tephra
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- Habutaki I Tephra
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- [ Lower ]
------ Conformity, ~~~~~~ Unconformity, ~~~--- Local unconformity, '''/,, Interfingered, :::::: Fault, /--/-- Thrust, +__+__ Ground surface, ?--?-- Unknown
- Distribution: Osaka pref.
- Ozaki et al. (2000) Geology of the Nara District, Quadrangle Series, Scale 1:50,000, Geological Survey of Japan, 162p. (in Japanese with English abstract 5p.)
- Miyachi et al. (1998) Geology of the Osaka-Tonambu District, Quadrangle Series, Scale 1:50,000, Geological Survey of Japan, 113p. (in Japanese with English abstract 5p.)