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Yuridani Formation

• Coherent formation
• early Pleistocene

• Lithofacies: Gravels, Sands
• Lithofacies (Minor): Lignite

• Thickness: ca. 20 m
• Lower limit: Unconformity (Kuga Group)

• Distribution: Yuridani, Iwakuni city, Yamaguchi pref.

• Higashimoto et al. (1986) Geology of the Otake District, Quadrangle Series, Scale 1:50,000, Geological Survey of Japan, 70p. (in Japanese with English abstract 6p.)