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S3 Member

• Type locality: Wakayama prefecture
• Coherent formation
• Miocene

• Sedimentary facies: Marine
• Sedimentary facies: Wave-dominated shallow marine in the regression stage
• Lithofacies (Upper): Mudstone-dominant interbedded sandstone and mudstone, Siltstone
• Lithofacies (Lower): Sandstone, Sandstone-dominant interbedded sandstone and mudstone
• Sedimentary structures (Upper): Planar cross-stratification, Herringbone cross-stratification, Mud drapes
• Sedimentary structures (Lower): Hummocky cross-stratification

• Upper limit: Conformity
• Lower limit: Conformity

------ Conformity, ~~~~~~ Unconformity, ~~~--- Local unconformity, '''/,, Interfingered, :::::: Fault, /--/-- Thrust, +__+__ Ground surface, ?--?-- Unknown

• Distribution: Wakayama pref.
• Fossils: Trace fossils

• Miyata et al., (2009) Jour. Geol. Soc. Japan, vol.115, no.9, pp.470-482 DOI