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Motobu Unit

Nakae et al. (2010) suggested Motobu Unit is same as Yonamine Formation including Motobu Formation and Nakijin Formation in it.

• Type locality: Motobu peninsula, Okinawa prefecture
• Accretionary complex
• Deposition (Limestone): Permian - Late Triassic
• Deposition (Chert): late Permian - Late Triassic
• Deposition (Clastic rocks): Early Cretaceous
• Accretion: Early Cretaceous
• Correlation: Sanbosan Unit

• Sedimentary facies: Marine
• Lithofacies: Mélange facies
• Matrix: Mudstone
• Exotic blocks (Crusts): Limestone, Basaltic volcanic pyroclastic rocks

• Upper limit: Thrust fault
• Lower limit: Hedo Tectonic Line = Butsuzo Tectonic Line

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

• Distribution: Motobu peninsula - Cape Hedo, Okinawa pref.

• Yamashita et al. (2016) Jour. Geol. Soc. Japan, vol.122, no.9, pp.477-493, DOI
• Miyagi et al. (2013) Jour. Geol. Soc. Japan, vol.119, no.10, pp.665-678 DOI