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Mizukamidani Formation (Kobayashi et al., 1957) Takeuchi et al., 2015
- Type locality: Middle reaches of Sakai river - Mizukami valley, Asahi city, Toyama prefecture
- Coherent formation
- Early Cretaceous, Aptian (123 - 109 Ma, U-Pb)
- Lithofacies (Upper, Main): Mudstone
- Lithofacies (Upper, Minor): Conglomerate, Sandstone, Tuff
- Lithofacies (Middle): Mudstone, Sandstone, Conglomerate
- Lithofacies (Lower): Tuffaceous mudstone, Tuffaceous sandstone, Sandstone, Conglomerate
- Sedimentary structures: Cross-stratification
------ Conformity, ~~~~~~ Unconformity, ~~~--- Local unconformity, '''/,, Interfingered, :::::: Fault, /--/-- Thrust, +__+__ Ground surface, ?--?-- Unknown
- Distribution: Sakai river - Mizukami valley - Otaki valley - Shina valley, Asahi city, Toyama pref.
- Takeuchi et al. (2015) Jour. Geol. Soc. Japan, vol.121, no.7, pp.193-216, DOI
- Takeuchi et al. (2015) Jour. Geol. Soc. Japan, vol.121, no.1, pp.1-17 DOI