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Minakamiyama Volcanics Iijima and Saito, 1968
- Type locality: Mount Minakami, Matsushiro town, Nagano city, Nagano prefecture
- Volcanic rocks
- Lava dome
- Pliocene - Pleistocene (0.35 Ma, K-Ar)
- Lithofacies: Hornblende-bearing augite hypersthene andesite lava
- Thickness: ca. 400 m
- Distribution (Height): ca. 250 m
- Distribution (Diameter): ca. 1.2 km
- Upper limit: Alluvial fan deposit
- Distribution: Mount Minakami, Matsushiro town, Nagano city, Nagano pref.
- Kato and Akahane (1986) Geology of the Nagano District, Quadrangle Series, Scale 1:50,000, Geological Survey of Japan, 120p. (in Japanese with English abstract 5p.)