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Goishigawa Unit Sato et al., 2022

• Type locality: Goishigawa river, Mitsuishi, Bizen city, Okayama prefecture
• Accretionary complex
• Accretion: Early Jurassic (188.9 Ma, U-Pb)
• Intruded by: Rhyolite dikes

• Sedimentary facies: Marine
• Lithofacies: Mélange facies
• Lithofacies (Minor): Coherent facies
• Matrix: Mudstone
• Exotic blocks (Crusts): Sandstone
• Exotic blocks (Crusts, Minor): Chert, Basalt lava, Tuff, Lapilli tuff, Dolerite
• Lithofacies (Minor): Chert

• Thickness: 1,500 - 1,800 m or thicker
• Distribution (East - West): 7 km
• Distribution (South - North): 8 km
• Upper limit: Unconformity (Hinase Formation, Daiyama Welded Lapilli Tuff Member, Ieshima Unit, Ako Formation, Une Formation)

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

• Distribution: Imasaki - Yakiyama - Mitsuishi - Goishigawa river - Notani - Kone, Bizen city, Okayama pref.

• Sato et al. (2022) Geology of the Wake District, Quadrangle Series, Scale 1:50,000, Geological Survey of Japan, AIST, 106p. (in Japanese with English abstract 4p.)
• Sato et al. (2016) Geology of the Banshu-Ako District, Quadrangle Series, Scale 1:50,000, Geological Survey of Japan, AIST, 68p. (in Japanese with English abstract 3p.)