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Tsuma Facies
- Boundary between Philippine sea plate and Eurasian plate
- Fore-arc basin sediments
- Coherent formation
- late Miocene - early Pleistocene
- Sedimentary facies: Marine
- Lithofacies: Mudstone
- Upper limit: Unconformity (3.0 Ma)
- Lower limit: Unconformity
- Miyazaki Group (North Nichinan seashore)
- [ Upper ]
- ~~~~~~~~~~~~~~
- Tsuma Facies
- ~~~~~~~~~~~~~~
- [ Lower ]
------ Conformity, ~~~~~~ Unconformity, ~~~--- Local unconformity, '''/,, Interfingered, :::::: Fault, /--/-- Thrust, +__+__ Ground surface, ?--?-- Unknown
- Distribution: Nichinan seashore, Miyazaki pref.
- Ishihara et al. (2014) Jour. Geol. Soc. Japan, vol.120, Supplement, pp.41-62 DOI
- Takashimizu (2009) Jour. Geol. Soc. Japan, vol.115, no.11, pp.559-577 DOI