[ Top ] [ Japanese ]
P1 Tephra
Abbr.: P1
- Type locality: Mount Komagatake, Hokkaido
- Tephra
- Holocene (6.5 - 6.3 cal ka, 14C)
- Lithofacies: Pumice fall deposit, Volcanic ash fall deposit, Pyroclastic flow deposit
- Lithofacies (Minor): Scoria
- Mode of eruption: Plinian
- Eruptive volume: 0.05 km3 DRE or less
- Thickness: A few m
- Upper limit: Unconformity (Ko-d)
- Lower limit: Unconformity (P2)
- Stage III
- [ Upper ]
- ~~~~~~~~~~~~~~
- Ko-f
- ~~~~~~~~~~~~~~
- P1
- ~~~~~~~~~~~~~~
- P2
- ~~~~~~~~~~~~~~
- Ko-g
- ~~~~~~~~~~~~~~
- [ Lower ]
------ Conformity, ~~~~~~ Unconformity, ~~~--- Local unconformity, '''/,, Interfingered, :::::: Fault, /--/-- Thrust, +__+__ Ground surface, ?--?-- Unknown
- Distribution: Mount Komagatake, Hokkaido; Nashinokisawa creek, Mori city, Kayabe county, Hokkaido
- Yoshimoto et al. (2008) Jour. Geol. Soc. Japan, vol.114, no.7, pp.336-347 DOI
- Yoshimoto et al. (2007) Jour. Geol. Soc. Japan, vol.113, Supplement, pp.81-92 DOI