The origin of post-spreading magmatism in the South China Sea and surrounding area

Table S1 Chemical and isotopic compositions for the South China Sea seamount lavas

Table S2 Major and trace element contents and He isotope compositions for the South China Sea seamount glass

Table S3 Major element compositions of melt inclusion in olivine from the South China Sea seamount lavas

Table S4 Major and trace element compositions of olivines analyzed by EPMA (wt. %) and LA-ICP-MS (ppm)

Table S5  Chemical compositions of spinel inclusions and their host olivines analyzed and calculated Al-in-ol-sp temperatures and log(fO2) FMQ.

Table S6 U-Th-Pb isotopic ratios and ages, Hf isotopes of zircons

Table S7 Compositions of International standards