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Higher II Terrace Deposits Yamauchi and Murakami, 2007

Invalid synonym: Nijiyama Gravel

• Type locality: Araki elementary school, Okinoshima city, Oki county, Shimane prefecture
• Coherent formation
• Pleistocene
• Correlation: Higher II Terrace Deposits (Izumo)

• Sedimentary facies: River terrace
• Lithofacies (Top): Clay
• Lithofacies (Upper): Gravels-bearing mud
• Lithofacies (Lower): Gravels, Sands

• Thickness (Top): Several m or thicker
• Thickness (Upper): ca. 2.5 m
• Thickness (Lower): ca. 5 - 10 m
• Lower limit: Unconformity (Ikeda Basalt, Saigo Basalt)

• Distribution: Araki elementary school - Yabigawa river - Nishida - Imazu - Shimonishi, Okinoshima city, Oki county, Shimane pref.

• Yamauchi et al. (2009) Geology of the Saigo District, Quadrangle Series, Scale 1:50,000, Geological Survey of Japan, AIST, 118p. (in Japanese with English abstract 3p.)