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Abashiri Formation
- Type locality: western hills, Abashiri city, Hokkaido
- Coherent formation
- middle Miocene
- Contemporaneous heterotopic facies: Masuura Formation, lower Yobito Formation
- Lithofacies (Upper): Andesite agglomerate
- Lithofacies (Lower): Sandstone, Conglomerate
------ Conformity, ~~~~~~ Unconformity, ~~~--- Local unconformity, '''/,, Interfingered, :::::: Fault, /--/-- Thrust, +__+__ Ground surface, ?--?-- Unknown
- Distribution: western hills - Cape Notoro, Abashiri city, Hokkaido
- Motoyama et al. (2018) Jour. Geol. Soc. Japan, vol.124, no.7, pp.517-532 DOI