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Shirahama Formation

• Type locality: Tanabe city, Wakayama prefecture
• Coherent formation
• Miocene

• Sedimentary facies: Marine
• Depth of water: Shallow - Continental shelf
• Lithofacies: Interbedded sandstone and mudstone
• Lithofacies (Minor): Conglomerate, Siltstone

• Thickness: 600 - 700 m
• Upper limit: Unconformity (Toshima Formation)
• Lower limit: Conformity

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

• Distribution: Wakayama pref.

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