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Tanahara Terrace Deposit (Toya, 1952)

Synonym: Tanaharakamimizo Terrace Deposit, Tanaharataima Terrace Deposit, Tanaharayotsuya Terrace Deposit, Tanaharashimizu Terrace Deposit

Invalid synonym: Tanahara Gravel, Nakano I Formation

• Type locality: Tanahara, Sagamihara city, Kanagawa prefecture
• Coherent formation
• Pleistocene (34 - 25 ka)
• Correlation: Tachikawa Terrace Deposits

• Sedimentary facies: Alluvial fan
• Lithofacies: Gravels
• Lithofacies (Minor): Sands, Sandy silt

• Thickness: 3 - 10 m
• Upper limit: Unconformity (Minahara Terrace Deposit)
• Lower limit: Unconformity (Sagamiko Group, Nakatsu Group, Echi Formation, Sagamihara Terrace Deposit, Nakatsuhara Terrace Deposit)

• Distribution: Tanahara - Taima, Minami ward, Sagamihara city, Kanagawa pref.; Sagamigawa river - Kushikawa river - Nakatsugawa river, Kanagawa pref.
• Oka et al. (1979) Geology of the Fujisawa District, Quadrangle Series, Scale 1:50,000, Geological Survey of Japan, 111p. (in Japanese with English abstract 5p.)

• Ueki et al. (2013) Geology of the Hachioji District, Quadrangle Series, Scale 1:50,000, Geological Survey of Japan, AIST, 137p. (in Japanese with English abstract 6p.)