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Sannodai Old Dune Sands Association for Kanto Quaternary research, 1974

• Type locality: Sannodai, Nagata town, Minami ward, Yokohama city, Kanagawa prefecture
• Coherent formation
• Pleistocene

• Sedimentary facies: Dune
• Sedimentary facies: under water
• Lithofacies: Sands
• Lithofacies (Lower): Gravel-bearing sands
• Sedimentary structures: Cross stratification
• Sedimentary structures (Lower): Cross stratification

• Thickness: ca. 25 m
• Thickness (Lower): 1.8 m
• Upper limit: Unconformity (Maioka Loam, Tsuchihashi Loam)
• Lower limit: Unconformity (Sannodai Loam)

• Distribution: Sannodai, Nagata town, Minami ward, Yokohama city, Kanagawa pref.

• Mitsunashi and Kikuchi (1982) Geology of the Yokohama District, Quadrangle Series, Scale 1:50,000, Geological Survey of Japan, 105p. (in Japanese with English abstract 4p.)