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Iwatahara Gravel Bed

• Coherent formation
• Pleistocene

• Sedimentary facies: Fluvial
• Paleo-river system: Tenryugawa river
• Lithofacies: Gravels

• Thickness: ca. 30 - 60 m
• Upper limit: Conformity (Iwata Loam)
• Lower limit: Unconformity (Ogasa Group)

• Distribution: Iwatahara, Iwata city, Shizuoka pref.

• Makiyama and Sakamoto (1957) Mitsuke & Kakezuka, Explanatory Text of the Geological Map of Japan, Scale 1:50,000, Geological Survey of Japan, 43p. (in Japanese with English abstract 7p.)