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Hakkoda 2nd-stage Pyroclastic Flow Deposit Muraoka and Takakura, 1988

Abbr.: Hkd2

Invalid synonym: Oirase Dacite, Nosagake Formation, Hakkoda Welded Tuff, Nagatoro Tuff, Hasezawa Tuff, Tashirotai Welded Tuff

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