Supplementary Materials for Carbonatite versus silicate melt metasomatism impacts grain scale 87Sr/86Sr and 143Nd/144Nd heterogeneity in Polynesian mantle peridotite xenoliths

Major element, trace element, and Sr and Nd isotope analyses of minerals from Samoa and Tahiti mantle xenoliths. Dataset S1 are Olivine, clinopyroxene, orthopyroxene, and spinel major element concentrations (wt. %) for the four peridotite xenoliths examined in this study. Dataset S2 are Trace element concentrations (in ppm) of olivine, orthopyroxene, and clinopyroxene. Dataset S3 are Strontium and neodymium isotope compositions of single grains (of opx, cpx, olivine) from Savai'i and Tahiti xenoliths.

本数据集包含了萨摩亚和塔希提岛地幔岩包体中矿物的宏量元素、微量元素以及锶（Sr）和钕（Nd）同位素分析结果。数据集S1包括对本研究中考察的四个辉长岩岩包体中橄榄石、斜方辉石、单斜辉石和尖晶石宏量元素浓度（质量百分比）的测定。数据集S2为橄榄石、单斜辉石和斜方辉石的微量元素浓度（以ppm计）。数据集S3记录了萨瓦伊岛和塔希提岛岩包体中单晶（opx、cpx、橄榄石）的锶和钕同位素组成。