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Kumagatake Upper Lava and Pyroclastic Rock Ishige and Nakagawa, 2017

Abbr. KU

• Type locality: 2,140 m above sea level, Crater, Mount Kumagatake, Mount Taisetsu, Hokkaido
• Volcanic rocks
• Pleistocene

• Lithofacies: Lava, Welded pyroclastic fall deposit composed of scoria
• Lithofacies (Main): Hornblende-bearing clinopyroxene-orthopyroxene dacite
• Lithofacies (Minor): Clinopyroxene-orthopyroxene andesite

• Source: Kumagatake summit No.2 crater
• Eruptive volume: < 0.05 km³ DRE
• Thickness (Lava): 50 m
• Thickness (Pyroclastic rocks): 5 m
• Upper limit: Unconformity
• Lower limit: Unconformity

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

• Distribution: Northwest of Mount Kumagatake, Mount Taisetsu, Hokkaido

• Ishige and Nakagawa (2017) Jour. Geol. Soc. Japan, vol.123, no.2, pp.73-91, DOI