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Otonashigawa Group Hatenashi Research Group, 1977

Synonym: Otonashigawa Belt

• Accretionary complex
• Paleocene - Eocene

• Sedimentary facies: Marine

• Upper limit: Unconformity (Kumano Group, Tanabe Group)
• Northern limit: Gobo - Totsukawa Thrust fault, Gobo - Hagi Tectonic Line
• Southern limit: Chikatsuyu Thrust fault, Hongu - Minachi fault

------ Conformity, ~~~~~~ Unconformity, ~~~--- Local unconformity, '''/,, Interfingered, :::::: Fault, /--/-- Thrust, +__+__ Ground surface, ?--?-- Unknown

• Distribution: Cape Kirime - Cape Hatano, Inami city, Hidaka county Wakayama pref.; Fuzono, Tanabe city, Wakayama pref.

• Tokiwa et al. (2016) Jour. Geol. Soc. Japan, vol.122, no.12, pp.625-635, DOI
• Bessho and Nakaya (2011) Jour. Geol. Soc. Japan, vol.117, no.8, pp.423-438 DOI