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Shirasawa Terrace Deposit (Suzuki, 2000)

• Type locality: Natsubodai, Nakaokamoto, Utsunomiya city, Tochigi prefecture
• Coherent formation
• Fill Strath terrace
• Pleistocene (ca. 0.1 Ma, Tephra)

• Sedimentary facies (Lower): Fluvial
• Lithofacies (Upper): Loam
• Lithofacies (Lower): Gravels, Sands
• Lithofacies (Lower, Minor): Scoria

• Thickness (Upper): 8 - 10 m
• Thickness (Lower): 5 m or thicker

• Distribution: Natsubodai, Nakaokamoto, Utsunomiya city, Tochigi pref.; Shirasawa town - Hiraide town, Utsunomiya city, Tochigi pref.; Katsuyama, Sakura city, Tochigi pref.
• Tephra (Loam): Ag-MzP5, Ag-MzP6, Nk-HG
• Tephra (Lower): Nk-MA

• Yoshikawa et al. (2010) Geology of the Utsunomiya District, Quadrangle Series, Scale 1:50,000, Geological Survey of Japan, AIST, 79p. (in Japanese with English abstract 6p.)