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Unit 2
- Type locality: Kitadaito island, Kitadaito city, Shimajiri county, Okinawa prefecture
- Coherent formation
- Oceanic island sediments
- Pleistocene
- Sedimentary facies: Marine
- Sedimentary facies: Atoll sediments
- Lithofacies: Framestone
- Lithofacies (Minor): Rudstone, Bufflestone, Bioclastic packstone
- Unit 2
- [ Upper ]
- ~~~~~~~~~~~~~~
- Unit 2b
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- Unit 2a
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- [ Lower ]
------ Conformity, ~~~~~~ Unconformity, ~~~--- Local unconformity, '''/,, Interfingered, :::::: Fault, /--/-- Thrust, +__+__ Ground surface, ?--?-- Unknown
- Distribution: Kitadaito island, Kitadaito city, Shimajiri county, Okinawa pref.
- Takayanagi et al. (2010) Jour. Geol. Soc. Japan, vol.116, no.4, pp.237-240 DOI