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Lowest I Terrace Deposit

Invalid synonym: Lower II Terrace Deposit

• Coherent formation
• Alluvial fan of Miyagawa river
• Holocene (3,400 B.C. or later)

• Sedimentary facies: Alluvial fan deposit
• Sedimentary facies:
• Lithofacies: Gravels
• Lithofacies (Minor): Sands

• Thickness: 5 m or thinner
• Lower limit: Unconformity (Lower I Terrace Deposit, Numazawako Lahar Deposit)

• Distribution: Tadami river, Fukushima pref.; Miyagawa 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 Komazawa (2004) Geology of the Miyashita District, Quadrangle Series, Scale 1:50,000, Geological Survey of Japan, AIST, 71p. (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.)