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Nakazato Formation
- Coherent formation
- Devonian
- Lithofacies: Felsic tuff
- Lithofacies (Minor): Interbedded sandstone and shale
------ Conformity, ~~~~~~ Unconformity, ~~~--- Local unconformity, '''/,, Interfingered, :::::: Fault, /--/-- Thrust, +__+__ Ground surface, ?--?-- Unknown
- Distribution: Shimokogayo, Hikoroichi village, Ofunato city, Iwate pref.
- Tazawa and Niikawa (2018) Jour. Geol. Soc. Japan, vol.124, no.2, pp.111-116 DOI
- Kawamura et al. (2013) Geology of the Hayachine San District, Quadrangle Series, Scale 1:50,000, Geological Survey of Japan, AIST, 101p. (in Japanese with English abstract 4p.)