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Imajuku Formation (Fukuda and Ishiwada, 1964) Majima, 1989

Invalid synonym: Imajuku Sandstone Member (Ohashi Formation, Tokigawa Group), Akanuma Formation

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