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Shiroiwagawa Formation Maeda, 1956

Invalid synonym: Shiroiwagawa Alternation of Tuff, Shale and Sandstone, Shitakadani Alternation of Tuff, Shale and Sandstone, Nagaoyama Formation, Nagaoyama Conglomerate and Sandstone

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