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Boroishi Formation

• Boundary between Philippine sea plate and Eurasian plate
• Fore-arc basin sediments
• Coherent formation
• Miocene

• Sedimentary facies: Marine
• Lithofacies: Conglomerate

• Upper limit: Conformity
• Lower limit: Unconformity

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

• Distribution: Miyazaki pref.

• Ishihara et al. (2014) Jour. Geol. Soc. Japan, vol.120, Supplement, pp.41-62 DOI