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Tachikawa Terrace Deposits

Invalid synonym: Tachikawa Gravel

• Type locality: Tachikawa city, Tokyo
• Sedimentary facies: River terrace
• Coherent formation
• Last Glacial Period, late Pleistocene
• Correlation: Lower Dissected Fan Deposits, Toshitorazu Formation, Aoyagi Formation, Tachikawa 2 Formation, Tachikawa 1 Formation, Nakatsuhara Terrace Deposit, Tanahara Terrace Deposit, Lower Terrace Deposits (Hidagawa river)

• Lithofacies: Sands, Gravels

• Thickness: 3 - 5 m
• Upper limit: Conformity (Tachikawa Loam)
• Lower limit: Unconformity (Kazusa Group)

------ Conformity, ~~~~~~ Unconformity, ~~~--- Local unconformity, '''/,, Interfingered, :::::: Fault, /--/-- Thrust, +__+__ Ground surface, ?--?-- Unknown

• Distribution: Tachikawa city - Fuchu city, Tokyo; Kitami, Setagaya ward, Tokyo; Shimizu town, Kawagoe city, Saitama pref.

• Nakazawa and Endo (2002) Geology of the Omiya District, Quadrangle Series, Scale 1:50,000, Geological Survey of Japan, AIST, 41p. (in Japanese with English abstract 3p.)
• Oka et al. (1984) Geology of the Tokyo-Seinambu District, Quadrangle Series, Scale 1:50,000, Geological Survey of Japan, 148p. (in Japanese with English abstract 7p.)