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North zone

Invalid synonym: Yakuno North Subzone, Yakuno northern zone

• Continental crust (North China Craton)
• Accretionary complex, Ophiolite
• Granitoids (Old): Paleoproterozoic (1.85, 1.83 Ga, U-Pb), Carboniferous - Devonian (424 - 405 Ma, U-Pb; 300 Ma, Rb-Sr)
• Granitoids (Young): Triassic - Jurassic (249 - 243 Ma, U-Pb; 210 - 150 Ma, Rb-Sr)

• Lithofacies: Granite, Granodiorite, Gneiss
• Lithofacies (Minor, so called Yakuno Ophiolite): Amphibolite, Pelitic gneiss, Pelitic schist, Metagabbro, Diabase

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

• Distribution: Kyoto pref. - Okayama pref. - Shimane pref.
• Distribution: Shidaka - Okadayuri - Mount Grogatake - Shimofukui, Maizuru city, Kyoto pref.; Kanaya - Kitaariji, Oe town, Fukuchiyama city, Kyoto pref.; Kuwagai - Utanigawa river, Maizuru city, Kyoto pref.; Busaka - Terada, Tsuwano city, Kanoashi county, Shimane pref.

• Kimura et al. (2019) Jour. Geol. Soc. Japan, vol.125, no.2, pp.153-165 DOI
• Suda and Hayasaka (2009) Jour. Geol. Soc. Japan, vol.115, no.6, pp.266-287 DOI
• Takemura et al. (2009) Jour. Geol. Soc. Japan, vol.115, Supplement, pp.123-137 DOI
• Igi and Kuroda (1965) Oeyama, Explanatory Text of the Geological Map of Japan, Scale 1:50,000, Geological Survey of Japan, 81p. (in Japanese with English abstract 12p.)
• Igi et al. (1961) Maizuru, Explanatory Text of the Geological Map of Japan, Scale 1:50,000, Geological Survey of Japan, 49p. (in Japanese with English abstract 9p.)