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Lower I Terrace Deposit Tsuchiya and Yoshikawa, 1994

• Coherent formation
• late Pleistocene

• Lithofacies: Gravels
• Lithofacies (Minor): Sands, Silt
• Sedimentary structures: Imbricate structures
• Paleocurrent: North to South

• Distribution: Yodo river - Arakawa river - Miyatamatazawa river - Okuyama river - Shinzo river, Kyowa, Daisen city, Akita pref.; Kotane - Mount Suwa, Kyowa, Daisen city, Akita pref.; Kiharada - Kitanome, Daisen city, Akita pref.

• Tsuchiya and Yoshikawa (1994) Geology of the Kariwano District, Quadrangle Series, Scale 1:50,000, Geological Survey of Japan, 72p. (in Japanese with English abstract 4p.)