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Kengamine Pyroclastics Nishiki et al., 2007

Abbr.: KN

• Type locality: 1,950 m above sea level of east slope of Mount Kengamine, Sakuho city, Minamisaku county, Nagano prefecture
• Volcanic rocks
• early Pleistocene (0.83 Ma, K-Ar)

• Lithofacies: Olivine clinopyroxene basalt
• Lithofacies: Lavas (more than 10 flow units), Welded pyroclastic rocks, Agglutinates, Volcanic bombs

• Source: Mount Kengamine
• Eruptive volume: 0.7 km³
• Thickness (A unit): 1 - 5 m
• Upper limit: Kengamine-jobu Lavas
• Lower limit: Yachiho-kogen Lavas, Chiyosato-bokujo Lavas

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

• Distribution: 1,500 - 1,980 m above sea level, east slope of Mount Kengamine, 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