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Okuzu Formation

• Volcanic rocks
• Miocene

• Sedimentary facies: Marine
• Depth of water: Shallow
• Lithofacies: Dacite pyroclastic rocks
• Lithofacies (Minor): Dacite lava, Dacite lava dome, Mudstone

• Lower limit: Menaichizawa Formation

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

• Distribution: Kosaka city, Kazuno county, Akita pref.

• Mizuta and Ishiyama (2008) Jour. Geol. Soc. Japan, vol.114, Supplement, p.181 DOI