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Aoyagi Formation (Fukuda and Hatori, 1952) Ueki and Sakai, 2007

Invalid synonym: Aoyagi Terrace Deposit

• Type locality: Yaho cliff, Aoyagi, Kunitachi city, Tokyo
• Coherent formation
• late Pleistocene (17 - 11 ka)
• Correlation: Tachikawa Gravel Bed, Minahara Terrace Deposit

• Sedimentary facies: Fluvial
• Sedimentary facies: Strath terrace
• Sedimentary facies (Minor): Fill terrace
• Climate: Relatively cool
• Lithofacies: Gravels
• Lithofacies (Upper, Minor): Sands, Silt, Clay
• Sedimentary structures: Channel structure

• Thickness: 0.5 - 40 m or thicker
• Upper limit: Unconformity (Tachikawa Loam, Toshitorazu Formation)
• Lower limit: Unconformity (Chichibu Belt, Shimanto Belt, Kobotoke Group, Kazusa Group, Ome Formation, Tachikawa 2 Formation)

• Distribution: Yaho cliff, Aoyagi, Kunitachi city, Tokyo; Toke, Hikawa - Futamatao, Okutama city, Nishitama county, Tokyo; Hinatawada - Ome - Higashiome - Tomoda town, Morooka town, Ome city, Tokyo; Ozakudai - Hanekami - Gonokami, Hamura city, Tokyo; Midori town, Akishima city, Tokyo; Fujimi town - Shibasaki town - Snakawa town, Tachikawa city, Tokyo; Komiya town - Ishikawa town - Nakanokamicho town, Hachioji city, Tokyo; Hakonegasaki, Mizuho city, Nishitama county, Tokyo; Kamifujisawa - Terakake - Nakagami - Toyooka, Iruma city, Saitama pref.; Ina - Kamiyotsugi - Aburadai - Amama - Akiru - Ajiro, Akiruno city, Tokyo; Oguno - Dojo - Yatogawa river - Tamanouchigawa river - Ashigetagawa river, Hinode city, Nishitama county, Tokyo; Iwasawa - Ochiai, Hanno city, Tokyo; Hino, Hino city, Tokyo; Asakawa river - Kitaasakwa river - Minamiasakawa river - Yudonogawa river, Tokyo; Miyoshi town, Fuchu city, Tokyo

• 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.)
• Ueki and Sakai (2007) Geology of the Ome District, Quadrangle Series, Scale 1:50,000, Geological Survey of Japan, AIST, 189p. (in Japanese with English abstract 5p.)