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Higher I Terrace Deposits

Invalid synonym: Yamamawari Formation

• Type locality: Yamamawari, Izumo city, Shimane prefecture
• Coherent formation
• Pleistocene
• Correlation: Higher I Terrace Deposits (Yabigawa river), Hinomisaki Terrace Deposit

• Sedimentary facies: Terrace deposits
• Lithofacies: Conglomerate

• Thickness: 20 m or thicker
• Upper limit: Unconformity (Higher III Terrace Deposits)
• Lower limit: Unconformity

• Distribution: Yamamawari, Izumo city, Shimane pref.; Kamihonjo town - Sakamotoshimo - Asahinomori - Mukaimura, Matsue city, Shimane pref.

• Kano et al. (1991) Geology of the Imaichi District, Quadrangle Series, Scale 1:50,000, Geological Survey of Japan, 79p. (in Japanese with English abstract 5p.)
• 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.)