[ Top ] [ Japanese ]
Nirehara Formation (Tsuda and Chiji, 1950) Nakajima et al., 2019
Nirehara Formation had been a member of Yatsuo Group.
- Type locality: Jinzu river, Nirehara, Toyama city, Toyama prefecture
- Coherent formation
- early Miocene
- Sedimentary facies (Upper): Shallow marine or Lake
- Sedimentary facies (Lower): Alluvial fan, Gravelly fan delta
- Lithofacies: Conglomerate, Sandstone Mudstone
- Lithofacies (Bottom): Conglomerate
- Nirehara Formation
- [ Upper ]
- ~~~~~~~~~~~~~~
- Myogashima Alternation Member
- '''''''/,,,,,,
- Ashiu Sandstone Member
- '''''''/,,,,,,
- Imozu Conglomerate Member
- ~~~~~~~~~~~~~~
- [ Lower ]
------ Conformity, ~~~~~~ Unconformity, ~~~--- Local unconformity, '''/,, Interfingered, :::::: Fault, /--/-- Thrust, +__+__ Ground surface, ?--?-- Unknown
- Distribution: Nirehara - Imozu, Osawano town - Kiridani, Yatsuo town, Toyama city, Toyama pref.
- Nakajima et al. (2019) Jour. Geol. Soc. Japan, vol.125, no.7, pp.483-516 DOI
- Kunugiza et al. (2010) Jour. Geol. Soc. Japan, vol.116, Supplement, pp.83-101 DOI