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Hinuma Terrace Gravels

• Coherent formation
• Pleistocene
• Correlation: Uwaichi Terrace Gravels

• Lithofacies: Gravels
• Lithofacies (Minor): Sands

• Thickness: ca. 2 - 5 m

• Lower limit: Unconformity (Namegata Member, Yabu Formation)

• Distribution: Lake Hinuma - Hinuma river, Hokota city - Ibaraki city - Oarai city, Higashiibaraki county, Ibaraki pref.

• Sakamoto et al. (1981) Geology of the Ishioka District, Quadrangle Series, Scale 1:50,000, Geological Survey of Japan, 50p. (in Japanese with English abstract 3p.)
• Sakamoto (1975) Geology of the Isohama District, Quadrangle Series, Scale 1:50,000, Geological Survey of Japan, 55p. (in Japanese with English abstract 4p.)