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Ko-g Tephra
Abbr.: Ko-g
- Type locality: Mount Komagatake, Hokkaido
- Tephra
- Holocene (6.8 cal ka, 14C)
- Lithofacies (Top): Pumice fall deposit
- Lithofacies (Upper): Pyroclastic flow deposit
- Lithofacies (Middle): Pumice fall deposit
- Lithofacies (Lower): Pyroclastic flow deposit
- Lithofacies (Bottom): Pumice fall deposit
- Mode of eruption: Plinian
- Eruptive volume: 1.0 km3 DRE or more
- Thickness (Top): ca. 50 cm
- Thickness (Upper): ca. 50 cm
- Thickness (Middle): ca. 50 cm
- Thickness (Lower): ca. 100 cm
- Thickness (Bottom): ca. 200 cm
- Upper limit: Unconformity (P2)
- Lower limit: Unconformity (P3)
- Stage III
- [ Upper ]
- ~~~~~~~~~~~~~~
- Ko-f
- ~~~~~~~~~~~~~~
- P1
- ~~~~~~~~~~~~~~
- P2
- ~~~~~~~~~~~~~~
- Ko-g
- ~~~~~~~~~~~~~~
- [ Lower ]
------ Conformity, ~~~~~~ Unconformity, ~~~--- Local unconformity, '''/,, Interfingered, :::::: Fault, /--/-- Thrust, +__+__ Ground surface, ?--?-- Unknown
- Distribution: Mount Komagatake, Hokkaido; Doto region, 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