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First-stage Yakuno Rocks

• Middle - lower crust of Permian volcanic island-arc (Paleo-Yakuno island arc) on the basement of back-arc basin

• Sedimentary facies: Marine
• Metamorphic facies (Upper): Amphibolite facies
• Metamorphic facies (Lower): Granulite facies
• Lithofacies: Tholeiite series
• Lithofacies: Meta-gabbro, Schistose amphibolite

• Lower limit: Thrust fault (Lower sheet)

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

• Distribution: Asago city, Hyogo pref.

• Suda and Hayasaka (2009) Jour. Geol. Soc. Japan, vol.115, no.6, pp.266-287 DOI