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Niunokawa Formation Kishu Shimanto Research Group, 1977

• Shimanto Supergroup - Hidakagawa Group, or a part of Otonashigawa Group - Uridani Formation.
• Accretionary complex
• Paleogene, or Late Cretaceous, Campanian

• Sedimentary facies: Marine
• Sedimentary facies: Continental shelf, Upper continental slope
• Lithofacies: Terrigenous coarse clastic rocks
• Lithofacies (Minor): Green rocks

• Upper limit: Gobo - Totsukawa Thrust fault
• Lower limit: Hatenashi Thrust fault, Gobo - Hagi Tectonic Line

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

• Distribution: Higashi, Ryujin village, Tanabe city, Wakayama pref.

• Tokiwa et al. (2016) Jour. Geol. Soc. Japan, vol.122, no.12, pp.625-635, DOI
• Yao (2012) Jour. Geol. Soc. Japan, vol.118, Supplement, pp.90-106 DOI
• Tokiwa et al. (2007) Jour. Geol. Soc. Japan, vol.113, no.6, pp.270-273 DOI
• Win et al. (2007) Jour. Geol. Soc. Japan, vol.113, no.4, pp.133-145 DOI