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表S1 南海海山熔岩的化学与同位素组成 表S2 南海海山玻璃的主量元素、微量元素含量及氦同位素组成 表S3 南海海山熔岩中橄榄石（olivine）内熔体包裹体（melt inclusion）的主量元素组成 表S4 经电子探针显微分析（EPMA, Electron Probe Microanalysis，结果以重量百分比wt. %计）与激光剥蚀电感耦合等离子体质谱（LA-ICP-MS, Laser Ablation Inductively Coupled Plasma Mass Spectrometry，结果以百万分比ppm计）分析的橄榄石的主量与微量元素组成 表S5 尖晶石（spinel）包裹体及其寄主橄榄石的化学组成，以及经分析计算得到的Al-in-ol-sp温标与相对于橄榄石-磁铁矿-石英缓冲体系的氧逸度对数值log(fO₂) FMQ 表S6 锆石（zircon）的铀-钍-铅（U-Th-Pb）同位素比值与年龄，以及铪（Hf）同位素组成 表S7 国际标准参考物质的组成