[ Top ] [ Japanese ]

Sakaibayashi Formation Suzuki, 1952

• Type locality: Uchikawa river, Sakaibayashi, Yaita city, Tochigi prefecture
• Coherent formation
• middle Pleistocene (1.5 - 0.9 Ma)

• Sedimentary facies: Fluvial
• Sedimentary facies: Alluvial fan
• Lithofacies: Gravels, Sands

• Thickness: ca. 3 - 70 m
• Upper limit: Conformity (Tomatsuri Loam), Unconformity (Hoshakuji Terrace Deposit)
• Lower limit: Unconformity

• Distribution: Uchikawa river, Sakaibayashi, Yaita city, Tochigi pref.; Nagaoka town, Utsunomiya city, Tochigi pref.; Horigawa river, Yanagibayashi, Nakagawa city, Nasu county, Tochigi pref.
• Tephra (Shirakawa Pyroclastic Flow Deposits): Tenei Pyroclastic Flow Deposit, Nishigo Pyroclastic Flow Deposit, Ashino Pyroclastic Flow Deposit, Kumado Pyroclastic Flow Deposit

• Suzuki (2011) Jour. Geol. Soc. Japan, vol.117, Supplement, pp.121-133 DOI
• 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.)