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Late stage

• Type locality: Mount Asahidake, Mount Taisetsu, Hokkaido
• Volcanic rocks
• Pleistocene

• Sedimentary facies: Phreatic explosion

• Lower limit: Unconformity

------ Conformity, ~~~~~~ Unconformity, ~~~--- Local unconformity, '''/,, Interfingered, :::::: Fault, /--/-- Thrust, +__+__ Ground surface, ?--?-- Unknown

• Distribution: Mount Taisetsu, Hokkaido

• Ishige et al. (2018) Jour. Geol. Soc. Japan, vol.124, no.4, pp.297-310 DOI
• Ishige and Nakagawa (2017) Jour. Geol. Soc. Japan, vol.123, no.2, pp.73-91, DOI