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Mikuriya Sand and Gravel Bed Ota, 1962

• Coherent formation
• Pleistocene

• Sedimentary facies: Marine, Fluvial
• Lithofacies: Sands, Gravels
• Sedimentary structures: Cross stratification

• Thickness: ca. 4 - 8 m
• Upper limit: Unconformity (Matsue Tephra, ca. 0.13 Ma, Nawa Pyroclastic Flow Deposits)
• Lower limit: Unconformity (Older stage of Daisen volcano)

• Distribution: Nawa - Kada, Daisen city, Seihaku county, Tottori pref.

• Kano and Nakano (1985) Geology of the Mihonoseki District, Quadrangle Series, Scale 1:50,000, Geological Survey of Japan, 28p. (in Japanese with English abstract 3p.)
• Ota (1962) Akasaki & Daisen, Explanatory Text of the Geological Map of Japan, Scale 1:50,000, Geological Survey of Japan, 37p. (in Japanese with English abstract 3p.)