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Kuzumaki-Kamaishi Sub-belt

Invalid synonym: western part of Iwaizumi Belt

• Accretionary complex
• Deposition (Limestone): Carboniferous - Permian (Corals, Fusulinids, Ammonoids)
• Deposition (Chert): Carboniferous - Triassic (Conodonts)
• Deposition (Siliceous mudstone): Middle Jurassic, Aalenian (Radiolarians)
• Deposition (Mudstone): Middle - Late Jurassic (Radiolarians)
• Accretion: Middle Jurassic - Early Cretaceous (Radiolarians)

• Sedimentary facies: Marine
• Lithofacies: Coherent facies (Chert-clastic sequence)
• Lithofacies: Limestone, Chert, Sandstone (Feldspathic arenite, Wacke)

• Lower limit: Iwaizumi Tectonic Line, Seki- Odaira Fault

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

• Distribution: Mabechi river, Shiritaka, Kuzumaki city, Iwate county, Iwate pref.; Owasawa creek, Hirosaki city, Aomori pref.; Mitsumenai, Owani city, Minamitsugaru county, Aomori pref.; Kodomari peninsula, Aomori pref.
• Fossils (Limestone): Ammonoids, Brachiopods, Corals, Fusulinids, Chaetetids
• Fossils (Chert): Conodonts

• Tuzino et al. (2018) Geology of the Ichinohe District, Quadrangle Series, Scale 1:50,000, Geological Survey of Japan, AIST, 161p. (in Japanese with English abstract 4p.)
• Uchino (2017) Jour. Geol. Soc. Japan, vol.123, no.11, pp.977-982 DOI
• Takahashi et al. (2016) Jour. Geol. Soc. Japan, vol.122, no.1, pp.1-22, 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.)
• Ehiro et al. (2010) Jour. Geol. Soc. Japan, vol.116, no.4, pp.219-228 DOI
• Ueda et al., (2009) Jour. Geol. Soc. Japan, vol.115, no.11, pp.610-613 DOI
• Ehiro et al. (2008) Jour. Geol. Soc. Japan, vol.114, Supplement, pp.121-139 DOI
• Uchino et al. (2008) Jour. Geol. Soc. Japan, vol.114, Supplement, pp.141-157 DOI
• Yoshida and Katada (1984) Geology of the Miyako District, Quadrangle Series, Scale 1:50,000, Geological Survey of Japan, 44p. (in Japanese with English abstract 6p.)