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Jizomine Gravel Bed Research Group for Quaternary in Kisodani, 1967

• Coherent formation
• Pliocene

• Sedimentary facies: Fluvial
• Lithofacies: Rounded gravels

• Thickness: 20 - 30 m
• Upper limit: Conformity (Jizotoge Volcanic Rocks)

• Distribution: Nagano pref.

• Takeuchi et al. (1998) Geology of the Kiso-Fukushima District, Quadrangle Series, Scale 1:50,000, Geological Survey of Japan, 94p. (in Japanese with English abstract 4p.)