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Kumegawa Formation Ueki and Sakai, 2007

• Type locality: Kumegawa town, Tokorozawa city, Saitama prefecture
• Coherent formation
• late Pleistocene (50 - 40 ka)
• Correlation: Musashino Terrace Deposit

• Sedimentary facies: Fluvial
• Lithofacies: Gravels

• Thickness: ca. 1 m
• Upper limit: Unconformity (Musashino Loam, Karaborigawa Formation, Tachikawa 2 Formation)
• Lower limit: Unconformity (Imokubo Formation)

• Distribution: Kumegawa town, Tokorozawa city, Saitama pref.; Yanasegawa river - Kitagawa river - Karborigawaa river, Saitama pref.

• 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.)