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Terrace deposits

• Coherent formation
• Pleistocene

• Lithofacies: Mud, Sands, Gravels

• Thickness: 0 - 50 m
• Lower limit: Unconformity (Tobishima Formation)

• Distribution: Tobishima island, Sakata city, Yamagata pref.

• Ozawa et al. (1982) Geology of the Kisakata District, Quadrangle Series, Scale 1:50,000, Geological Survey of Japan, 73p. (in Japanese with English abstract 4p.)