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Yada Terrace Gravels
- Coherent formation
- Pleistocene
- Thickness: 2 m or thicker
- Distribution: Tomae town - Yada town, Mito city, Ibaraki pref.
- Sakamoto et al. (1972) Geology of the Nakaminato District, Quadrangle Series, Scale 1:50,000, Geological Survey of Japan, 94p. (in Japanese with English abstract 5p.)