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Ejiri Unit (Suzuki et al., 1988) Sato et al., 2022

• Type locality: Katase - Hitoichi, Seto town, Okayama city, Okayama prefecture
• Accretionary complex
• Accretion: Permian, Guadalupian, Roadian - Capitanian (269.9 Ma, U-Pb)
• Correlation: Hikami Formation
• Intruded by: Nibori Granite, Misaoyama Granite, Yotsujiyama Granite, Osafune Granite

• Sedimentary facies: Marine
• Lithofacies: Coherent facies
• Lithofacies (Minor): Mélange facies
• Lithofacies: Interbedded sandstone and mudstone, Sandstone
• Lithofacies (Minor): Siliceous mudstone
• Sedimentary structures: Graded bedding

• Upper limit: Unconformity (Shashakiyama Formation, Takasagoyama Formation, Kamosaki Formation, Wake Formation, Susai Formtion)

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

• Distribution: Katase - Hitoichi - Kanonji - Ouchi - Mount Komeguriyama - Jodokitagata, Seto town, Okayama city, Okayama pref.; Mount Tatsunokuchiyama, Okayama city, Okayama pref.; Saitomi, Akaiwa city, Okayama pref.; Sakane, Bizen city, Okayama pref.; Osafune - Isokami, Setouchi city, Okayama pref.
• Fossils (Radiolarians): Follicucullus? spp.

• 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.)