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Koshimeguri Formation

• Accretionary complex
• Accretion: Jurassic

• Sedimentary facies: Marine
• Lithofacies (Upper): Sandstone
• Lithofacies (Upper, Minor): Chert, Mudstone
• Lithofacies (Middle): Sandstone
• Lithofacies (Middle, Minor): Chert, Mudstone
• Lithofacies (Lower): Sandstone
• Lithofacies (Lower, Minor): Chert, Mudstone

• Upper limit: Unconformity (Raga Formation, Tanohata Formation)

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

• Distribution: Tanohata city, Shimohei county, Iwate pref.

• Umetsu et al. (2013) Jour. Geol. Soc. Japan, vol.119, Supplement, pp.82-95 DOI
• Ehiro et al. (2008) Jour. Geol. Soc. Japan, vol.114, Supplement, pp.121-139 DOI