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Jigokudani Volcaniclastic Rock 1 Ishige et al., 2018

Abbr. JD-1

• Type locality: 1,550 m above sea level, West of Jigokudai exploson crater, Mount Asahidake, Mount Taisetsu, Hokkaido
• Volcanic rocks
• Phreatic eruption deposit
• Pleistocene (2.8 cal ka, ¹⁴C)

• Sedimentary facies (Upper): Lahar deposit
• Sedimentary facies (Middle): Argilliceous volcanic ash
• Sedimentary facies (Lower): Debris avalanche deposit

• Thickness (Upper): 20 - 50 cm
• Thickness (Middle): 15 cm
• Thickness (Lower): 1 - 10 cm

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

• Distribution: Bannosawa creek - Piukenai river, Mount Asahidake, 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