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Hanatate Tuff Member

• Volcanic rocks
• Miocene

• Lithofacies: Rhyolite
• Lithofacies: Pumiceous hyaloclastite, Pyroclastic rocks

• Upper limit: Conformity (Nomura Formation)
• Lower limit: Conformity (Higashikoidegawa Basalt Member)

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

• Distribution: Tsugawa, Aga city, Higahikanbara county, Niigata pref.

• Hiranaka et al. (2009) Jour. Geol. Soc. Japan, vol.115, no.4, pp.177-186 DOI