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Kasagami Formation Ishii et al., 1983

Invalid synonym: Yakushi Formation

• Type locality: Tagajo high school, Kasagami, Tagajo city, Miyagi prefecture
• Coherent formation
• Pliocene

• Sedimentary facies: Marine
• Lithofacies: Sandstone
• Lithofacies (Basal, Minor): Conglomerate

• Thickness: 6 m
• Upper limit: Unconformity (Tomegaya Formation)
• Lower limit: Unconformity (Tatsunokuchi Formation, Kameoka Formation)

• Distribution: Miyagi pref.
• Fossils: Boring shells, Pipe rocks

• Ishii et al. (1983) Geology of the Shiogama District, Quadrangle Series, Scale 1:50,000, Geological Survey of Japan, 112p. (in Japanese with English abstract 6p.)