[ Top ] [ Japanese ]
Chikubetsu Formation
- Coherent formation
- Foreland basins by collision between northeast Japan island arc and Kuril island arc
- middle Miocene
- Sedimentary facies: Marine
- Lithofacies: Mudstone
------ Conformity, ~~~~~~ Unconformity, ~~~--- Local unconformity, '''/,, Interfingered, :::::: Fault, /--/-- Thrust, +__+__ Ground surface, ?--?-- Unknown
- Kase et al., (2018) Jour. Geol. Soc. Japan, vol.124, no.8, pp.627-642 DOI