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Tpfl IV Tephra
Abbr.: Tpfl IV
- Volcanic rocks
- Pleistocene (114 - 113 ka, TL)
- Lithofacies: Pumice-rich pyroclastic flow deposit
------ Conformity, ~~~~~~ Unconformity, ~~~--- Local unconformity, '''/,, Interfingered, :::::: Fault, /--/-- Thrust, +__+__ Ground surface, ?--?-- Unknown
- Distribution: Iburi region, Hokkaido
- Ganzawa et al. (2007) Jour. Geol. Soc. Japan, vol.113, no.9, pp.470-478 DOI