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Okudani Formation Onishi, 1979

• Type locality: Higashiokudani town, Matsue city, Shimane prefecture
• Coherent formation
• Pleistocene
• Correlation: Lower Terrace Deposits

• Sedimentary facies: Terrace deposits
• Lithofacies: Gravels, Mud

• Thickness: 5 - 20 m

• Distribution: Higashiokudani town - Honjo town - Kawabe, Matsue city, Shimane pref.
• Fossils (Plants): Abies firma, Cryptomeria japonica, Fagus sp., Pseudotsuga japonica, Tsuga sieboldii

• Kano and Yoshida (1985) Geology of the Sakaiminato District, Quadrangle Series, Scale 1:50,000, Geological Survey of Japan, 57p. (in Japanese with English abstract 5p.)