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Tsunatori Unit
- Accretionary complex
- Deposition (Chert): late Devonian, early Famennian
- Deposition (Siltstone): early Devonian - early Carboniferous
- Accretion: early Carboniferous
- Sedimentary facies (Basalt): Seamount-type alkaline rocks, Seamount-type tholeiite, MORB
- Metamorphic facies (Green rocks): Prehnite-Pumpellyite facies, Pumpellyite-Actinolite facies, Greeschist facies
- Lithofacies: Interbedded mudstone and felsic tuff, Basaltic pyroclastics, Basaltic lava, Dolerite
- Lithofacies (Minor): Chert, Mudstone, Sandstone, Conglomerate, Gabbro, Serpentinite
------ Conformity, ~~~~~~ Unconformity, ~~~--- Local unconformity, '''/,, Interfingered, :::::: Fault, /--/-- Thrust, +__+__ Ground surface, ?--?-- Unknown
- Distribution: Center - Southwest part of Nedamo Belt
- Distribution: Yonai river - Teshirogi creek - Yagimaki creek - Nakatsu river - Takamori - Mount Takabora - Tsunatori dam - Tateishi - Isago creek - Yanagawa - Kawame, Morioka city, Iwate pref.
- Fossils (Chert): Conodont (Palmatolepis glabra prima)
- Fossils (Siltstone): Radiolarians (Palaeoscenidium cladophorum)
- Uchino and Kawamura (2009) Jour. Geol. Soc. Japan, vol.115, no.5, pp.242-247 DOI
- Uchino et al. (2008) Jour. Geol. Soc. Japan, vol.114, Supplement, pp.141-157 DOI