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Kurosegawa Belt Ichikawa et al., 1956 (Photo)

A part of pre-Jurassic accretionary complex

• Type locality: Kurosegawa, Shirokawa town, Seiyo city, Ehime prefecture
• Accretionary complex
• Serpentinite Mélange
• Deposition (High P/T metamorphic rocks): Cambrian (492 Ma, U-Pb)
• Deposition (Low P/T metamorphic rocks): Ordovician (447 Ma, U-Pb)
• Deposition (Sedimentary rocks): Silurian - Cretaceous
• Metamorphism (High P/T metamorphic rocks): Permian (300 - 270 Ma)
• Metamorphism (Low P/T metamorphic rocks): Devonian (416 Ma, Sm-Nd)

• Sedimentary facies (High P/T metamorphic rocks): Oceanic crust, Oceanic mafic volcanic activities
• Sedimentary facies (Low P/T metamorphic rocks): Igneous activities of a volcanic arc at the active continental margin
• Metamorphic facies (High P/T metamorphic rocks): Lawsonite blueschist facies (350 °C, 500 - 1,080 MPa)
• Metamorphic facies (Low P/T metamorphic rocks): Granulite facies (760 - 950 °C, 600 - 1,200 MPa)
• Lithofacies: Granitoids, Metamorphic rocks, Serpentinite
• Lithofacies (High P/T metamorphic rocks): Glaucophane-bearing meta-gabbro, Glaucophane-lawsonite-bearing meta-gabbro, Glaucophane-jadeite-bearing meta-gabbro
• Lithofacies (Low P/T metamorphic rocks): Garnet-clinopyroxene granulite, Garnet amphibolite, Amphibolite
• Lithofacies (Protolith, High P/T metamorphic rocks): Gabbro
• Lithofacies (Protolith, Low P/T metamorphic rocks): Gabbro

• Upper limit: Thrust fault
• Lower limit: Thrust fault

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

• Distribution: Kanto - Akaishi mountains - Shima peninsula - Kii peninsula, southern Shikoku - southern Kyushu
• Distribution: Cape Nabaebana - Cape Babe, Nishihiro, Hirogawa city, Arida county, Wakayama pref.; Taka island, Yuasa city, Arida county, Wakayama pref.; Kuroshima island, Ena, Yura city, Hidaka county, Wakayama pref.
• Distribution: Shiirokawa village - Nomura village, Seiyo city, Ehime pref.
• Distribution: Izumi town, Yatsushiro city, Kumamoto pref.; Kobetto pass - Itsuki city, Kuma county, Kumamoto pref.; Tsubokinohana seashore, Ashikita city, Ashikita county, Kumamoto pref.
• Fossils: Tethyan

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