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Higher Terrace Deposits

• Coherent formation
• Pleistocene

• Sedimentary facies: Fluvial
• Lithofacies: Gravels, Sands, Silt, Clay

• Thickness: 1 - 10 m
• Lower limit: Unconformity (Bihoku Group, Asuna Granite, Akana Granodiorite)

• Distribution: Shimokamedani - Yodohara - Wada - Takami - Yairoishi, Onan city, Ochi county, Shimane pref.; Shimoakana, Iinan city, Iishi county, Shimane pref.

• Matsuura (1990) Geology of the Akana District, Quadrangle Series, Scale 1:50,000, Geological Survey of Japan, 73p. (in Japanese with English abstract 5p.)