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Itabashi Formation Ueda, 1986

Invalid synonym: Upper Shale Member

• Coherent formation
• Miocene

• Sedimentary facies: Marine
• Lithofacies: Shale

• Lower limit: Top of coarse sandstone bed

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

• Distribution: Miyoshi city - Shobara city, Okayama pref.

• Goto et al. (2013) Jour. Geol. Soc. Japan, vol.119, no.4, pp.321-333 DOI