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Ishida Formation

Invalid synonym: Niwano Formation, Aidagawa Formation

• Type locality: Nakaichiba, Noda, Shinshiro city, Aichi prefecture
• Coherent formation
• Lower terrace deposits
• Pleistocene (late Last Glacial Period)

• Sedimentary facies: Fluvial
• Sedimentary facies: Terrace deposit
• Paleo-river system: tributary of Toyokawa river
• Lithofacies: Gravels

• Thickness: ca. 8 m
• Lower limit: Unconformity (Older Fan Deposits)

• Distribution: Noda - Ishida, Shinshiro city, Aichi pref.; Aidagawa river, Kamo town, Toyohashi city, Aichi pref.

• Miyazaki et al. (2008) Geology of the Goyu District, Quadrangle Series, Scale 1:50,000, Geological Survey of Japan, AIST, 97p. (in Japanese with English abstract 3p.)