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Lower I Terrace Deposit

Invalid synonym: Middle I Terrace Deposit (Aga river), Middle II Terrace Deposit (Aga river)

• Coherent formation
• end of Last glacial period, Pleistocene - Holocene

• Sedimentary facies: Fluvial, Alluvial fan
• Lithofacies: Gravels
• Lithofacies (Minor): Silt, Sands

• Thickness: 10 m or thicker
• Upper limit: Unconformity (Lowest I Terrace Deposit)
• Lower limit: Unconformity (Higashiomata Formation)

• Distribution: Aga river, Minamihara, Aizuwakamatsu city, Fukushima pref.; Kamiamaya - Oyama - Tsutsumizawa - Omogawa, Aizuwakamatsu city, Fukushima pref.; Sakase river, Aizumisato city, Onuma county, Fukushima pref.

• Yamamoto et al. (2006) Geology of the Kitakata District, Quadrangle Series, Scale 1:50,000, Geological Survey of Japan, AIST, 63p. (in Japanese with English abstract 5p.)
• Yamamoto and Yoshioka (1992) Geology of the Wakamatsu District, Quadrangle Series, Scale 1:50,000, Geological Survey of Japan, 73p. (in Japanese with English abstract 5p.)