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T₁ Terrace Deposit

• Coherent formation
• Pleistocene
• Correlation: Higher Terrace I Deposit

• Climate: Cool (Pollen)
• Lithofacies: Gravels, Sands, Silt

• Thickness: 3 - 15 m

• Distribution: Koshijihara, Nagaoka city, Niigata pref.; Mount Yamamoto, Ojiya city, Niigata pref.; Tagawa river - Negoya, Uonuma city, Niigata pref.
• Fossils (Pollen): Conifers

• Yanagisawa et al. (1986) Geology of the Ojiya District, Quadrangle Series, Scale 1:50,000, Geological Survey of Japan, 177p. (in Japanese with English abstract 6p.)