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Nagaogawa I Terrace Deposit

• Type locality: Nagaogawa river, Minamiboso city - Tateyama city, Chiba prefecture
• Coherent formation
• The highest terrace along Nagaogawa river
• Pleistocene

• Sedimentary facies: River terrace deposit (Coastal terrace?)
• Sedimentary facies (Silt): Flood loam
• Lithofacies: Sands, Gravels, Silt

• Thickness: 1 - 3 m
• Upper limit: Unconformity (Musashino Loam)
• Lower limit: Unconformity (Chikura Group)

• Distribution: Nagaogawa river, Minamiboso city - Tateyama city, Chiba pref.

• Kawakami and Shishikura (2006) Geology of the Tateyama District, Quadrangle Series, Scale 1:50,000, Geological Survey of Japan, AIST, 82p. (in Japanese with English abstract 5p.)