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Kabutoiwa Lava Kitayatsugatake Subgroup, 1988

Abbr.: KA

• Type locality: 1,140 m above sea level, Oishi river, Sakuho city, Minamisaku county, Nagano prefecture
• Volcanic rocks
• early Pleistocene

• Lithofacies: Hornblende-bearing orthopyroxene clinopyroxene dacite
• Lithofacies: Lava (a flow unit)

• Source: Oishi river
• Eruptive volume: 0.05 km³
• Thickness (A unit): 2 m
• Upper limit: Komadeike Volcaniclastics

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

• Distribution: 1,140 m above sea level, Oishi river, Sakuho city, Minamisaku county, Nagano pref.

• Nishiki and Takahashi (2012) Jour. Geol. Soc. Japan, vol.118, no.8, pp.499-515 DOI
• Nishiki et al. (2007) Jour. Geol. Soc. Japan, vol.113, no.5, pp.193-211 DOI