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Sasano-toge Gravel Bed Shiba and Suruga Bay Collaborative Research Group, 1986

• Type locality: Sasano pass, Wadajima, Shimizu ward, Shizuoka city, Shizuoka prefecture
• Coherent formation
• Paleo-Okitsugawa river deposit
• Pleistocene (ca. 0.5 Ma)
• Correlation: Saginota Gravel Bed

• Sedimentary facies: Fluvial
• Sedimentary facies: Main stream deposit
• Lithofacies: Gravels
• Lithofacies (Minor): Sandstone

• Thickness: 100 m
• Lower limit: Unconformity (Hamaishidake Formation)

• Distribution: Sasano pass, Wadajima, Shimizu ward, Shizuoka city, Shizuoka pref.

• Sugiyama and Shimokawa (1990) Geology of the Shimizu District, Quadrangle Series, Scale 1:50,000, Geological Survey of Japan, 103p. (in Japanese with English abstract 8p.)