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Takabatake Formation (Fujii, 1959) Takeuchi et al., 2017

• Type locality: Takabatake - Ikenohara, Asahi city, Shimoniikawa county, Toyama prefecture
• Coherent formation
• middle Miocene (13.5 Ma, U-Pb; 11.3 Ma, FT)
• Correlation: Tenguyama Formation

• Lithofacies (Top): Glauconite sandstone
• Lithofacies: Sandstone
• Lithofacies (Minor): Conglomerate, Rhyolite pumiceous lapilli tuff
• Sedimentary structures: Bioturbation

• Thickness: ca. 380 m
• Thickness (Rhyolite): 120 m
• Upper limit: Unconformity (Muroda Formation, Yokoo Formation, Funamino Terrace Deposits)
• Lower limit: Unconformity (Tsubono Formation, Shakusenji Formation, Sazen Formation)

• Distribution: Takabatake - Ikenohara, Asahi city, Shimoniikawa county, Toyama pref.; Oritate, Unazuki town, Kurobe city, Toyama pref.
• Fossils: Shellfishes, Echinoids, Sponges (Spicule), Wood frgments, Sponges, Trace fossils

• Takeuchi et al. (2017) Geology of the Tomari District, Quadrangle Series, Scale 1:50,000, Geological Survey of Japan, AIST, 121p. (in Japanese with English abstract 4p.)