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Iwajuku Terrace Deposit

• Coherent formation
• Pleistocene (ca. 40 ka)

• Sedimentary facies: Fluvial
• Lithofacies: Gravels

• Thickness: ca. 1.5 - 2 m

• Distribution: Azami, Kasakake town, Midori city, Gunma pref.; Aioi town, Kiryu city, Gunma pref.
• Tephra: Ag-KP

• Ito et al. (2022) Geology of the Kiryu and Ashikaga District, Quadrangle Series, Scale 1:50,000, Geological Survey of Japan, AIST, 101p. (in Japanese with English abstract 4p.)