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Higher Terrace Deposits

Invalid synonym: Fukuchiyama Formation, Osadano Formation

• Coherent formation
• middle - late Pleistocene (0.6 - 0.11 Ma)
• Correlation: Manchidani Formation, Miki Formation

• Sedimentary facies: Fluvial
• Sedimentary facies: Alluvial fan deposit
• Lithofacies: Gravels, Sands, Mud
• Sedimentary structures: Imbricate structure

• Thickness: 1 - 50 m or thicker
• Upper limit: Unconformity (Middle Terrace Deposits)
• Lower limit: Unconformity (Mimata Complex, Shuchi Formation)

• Distribution: Yuragawa river, Ayabe city - Fukuchiyama city, Kyoto pref.; Hago - Osadano - Izaki - Wakugawa river - Hazegawa river - Takedagawa river - Kurasaki - Uegai, Fukuchiyama city, Kyoto pref.; Fuchigaki town, Ayabe city, Kyoto pref.; Takahara - Hinokiyama, Kyotanba city, Funai county, Kyoto pref.
• Fossils: Stylax sp. (Seedss)
• Tephra: DMP

• Kurimoto and Makimoto (1990) Geology of the Fukuchiyama District, Quadrangle Series, Scale 1:50,000, Geological Survey of Japan, 97p. (in Japanese with English abstract 5p.)
• Kimura et al. (1989) Geology of the Ayabe District, Quadrangle Series, Scale 1:50,000, Geological Survey of Japan, 104p. (in Japanese with English abstract 5p.)