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Kamassawa Sandstone and Siltstone Member (Chinzei, 1958) Chinzei, 1966

Invalid synonym: Kamassawa Alternation of Sandstone and Siltstone Member

This member had been defined as the bottom of Kubo Formation.

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