Whole-rock elemental and Sr-Nd-Hf-Pb-Fe isotopic evidence for the Initial ‘return’ of recycled paleo-Pacific oceanic crust observed in the early Cretaceous (~123 Ma) intraplate magmatism from eastern China

Abstract: With the aim to seek if subducted paleo-Pacific slab had ‘returned’ through Mesozoic magmatism, we focus on an early Cretaceous (~123 Ma) diabase with OIB affinities in eastern China and provide robust whole-rock elemental and Sr-Nd-Hf-Pb-Fe isotopic evidence.摘要：为探究俯冲的古太平洋板片是否通过中生代岩浆作用发生“折返”，本研究聚焦中国东部具有洋岛玄武岩（Ocean Island Basalt, OIB）亲和性的早白垩世（约123 Ma）辉绿岩，并提供了可靠的全岩元素组成及Sr-Nd-Hf-Pb-Fe同位素证据。