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Middle Terrace Deposit

• Coherent formation
• Pleistocene

• Sedimentary facies: Terrace deposit
• Lithofacies: Gravels, Sands, Mud

• Thickness: 10 m or thinner

• Distribution: Shonai, Yamagata pref.
• Distribution: Nikko river, Kusatsu, Sakata city, Yamagata pref.; Arase river, Koyabuchi, Sakata city, Yamagata pref.

• Tsuchiya (1989) Geology of the Osawa District, Quadrangle Series, Scale 1:50,000, Geological Survey of Japan, 85p. (in Japanese with English abstract 6p.)