Magmatism and tectonic setting of proto-Japan during the Early Carboniferous: Constraints from the geochemical characteristics of mafic volcanic rocks in the Hida Gaien Belt, SW Japan
Journal of Asian Earth Sciences(2022)
摘要
•Early Carboniferous subduction-related basalts–andesites are found in SW Japan.•High-Al basalts were generated by arc tholeiitic magma near crust–mantle boundary.•Basaltic andesites were generated by fractional crystallization of the high-Al magma.•Early Carboniferous tectonic setting of proto-Japan was a primitive island arc.
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关键词
Geochemistry,Carboniferous,High-Al,Island arc tholeiite,Hida Gaien,SW Japan
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