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Shizunai Formation

• Coherent formation
• Foreland basins by collision between northeast Japan island arc and Kuril island arc
• middle Miocene
• Correlation: Motokanbe Formation

• Sedimentary facies: Turbidite

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

• Distribution: Hokkaido

• Kase et al., (2018) Jour. Geol. Soc. Japan, vol.124, no.8, pp.627-642 DOI