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Inagodake Lavas Kawachi, 1974 (Photo)

Abbr.: IN

• Type locality: 1,940 m above sea level of Oishi river, Sakuho city, Minamisaku county, Nagano prefecture
• Volcanic rocks
• Pleistocene (0.36, 0.26 Ma, K-Ar)

• Lithofacies (Upper): Rhyolite
• Lithofacies (Lower): Olivine-bearing orthopyroxene clinopyroxene hornblende andesite (Large hornblende crystals)
• Lithofacies: Lava (more than 2 flow units)
• Lithofacies (Minor): Obsidian

• Thickness (A unit): ca. 10 m
• Upper limit: Shirakomaike-toho Lavas, Ikenotairabokujo Lava, Unconformity (Yokoyakyo Lava, Maruyama Lava, Nakayama Lava)

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

• Distribution: Oishi river, Sakuho city, Minamisaku county, Nagano pref.; Mount Inagodake - Nyu - Honma river - Nakayama pass, Komi city, Minamisaku county, Nagano pref.

• Nishiki et al. (2007) Jour. Geol. Soc. Japan, vol.113, no.5, pp.193-211 DOI
• Kawachi (1974) Geology of the Tateshinayama District, Quadrangle Series, Scale 1:50,000, Geological Survey of Japan, 114p. (in Japanese with English abstract 5p.)