Phanerozoic Evolution of Continental Large Igneous Provinces: Implications for Galactic Seasonality

This study reviews the available data on Phanerozoic plume activity (Large Igneous Provinces (LIP’s) size and frequency) geochemistry of their igneous rocks. A major goal this review is to try find changes in intensity mantle plumes linked Earth’s evolution galactic seasonality that was supposed authors’ previous publications. The indicate Cambrian–Ordovician Jurassic–Cretaceous summers were associated with peaks various activities including both plume- subduction/collision-related magmatism, while Carboniferous–Permian current winters led significant drops within activity. materials subducted into transitional lower mantle, which highly influenced magmas galactic-summer times, less spring autumn seasons. least subduction-influenced LIPs probably Tarim Emeishan deep developed mid–late Permian, during late winter–early subseason. Fe enrichment clinopyroxenite, gabbro, ores these provinces might be caused by fluids ascending from core–mantle boundary. However, most core influence through plume-associated surface solid Earth have occurred summer times (Cambrian–Ordovician Jurassic–Cretaceous), indicated peak abundances ironstone ores. Their contributions were, however, obscured more influences subduction.