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Ieshima Formation Sato, 2016

• Type locality: Nishijima island - Bozejima island, Ieshima town, Himeji city, Hyogo prefecture
• Volcanic rocks
• Late Cretaceous (89.8 Ma, U-Pb)

• Sedimentary facies: Caldera-fill deposits
• Lithofacies: Pyroclastic flow deposits
• Lithofacies: Dacite pumice lapilli tuff, Rhyolite tuff breccia, Biotite hornblende rhyolite welded crystalline tuff, Lapilli tuff
• Sedimentary structures: Eutaxitic structure

• Thickness: 500 m or thicker
• Lower limit: Unconformity (Goishigawa Unit)

• Distribution: Nishijima island - Bozejima island - Tangajima island, Ieshima town, Himeji city, Hyogo pref.

• Sato et al. (2016) Geology of the Banshu-Ako District, Quadrangle Series, Scale 1:50,000, Geological Survey of Japan, AIST, 68p. (in Japanese with English abstract 3p.)