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SoP Tephra
Abbr.: SoP
Invalids synonym: Pm-1B
- Lithofacies: Volcanic ash, Pumice
- On-Pm1
- [ Upper ]
- ~~~~~~~~~~~~~~
- SoP
- --------------
- OP1
- ~~~~~~~~~~~~~~
- [ Lower ]
------ Conformity, ~~~~~~ Unconformity, ~~~--- Local unconformity, '''/,, Interfingered, :::::: Fault, /--/-- Thrust, +__+__ Ground surface, ?--?-- Unknown
- Distribution: Nagano pref.
- Yamada and Kobayashi (1988) Geology of the Ontakesan District, Quadrangle Series, Scale 1:50,000, Geological Survey of Japan, 136p. (in Japanese with English abstract 9p.)