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Hirose Formation

• Accretionary complex
• Early Jurassic

• Sedimentary facies: Marine
• Lithofacies: Turbidite
• Lithofacies: Interbedded sandstone and mudstone
• Lithofacies (Bottom): Conglomerate

• Thickness: 210 m
• Thickness (Conglomerate): 2 m
• Lower limit: Unconformity (Sabutani Formation)

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

• Distribution: Sakashu, Naga city, Naga county, Tokushima pref.
• Fossils (Radiolarians): Parahsuum simplum, Parahsuum ovale, Gigi sp., Bagotum sp.

• Ishida (2007) Jour. Geol. Soc. Japan, vol.113, no.3, pp.83-94 DOI