Mantle pyroxenites transformed from decarbonated altered oceanic crust controls the low-δ26Mg central-eastern Asian diffuse basaltic province

This dataset includes 1) Major, trace-element and Sr-Nd-Pb-Mg isotope data for Langshan basalts and lamprophyres, 2) Compilation of major, trace-element and Mg isotope data for the post-110 Ma intraplate basaltic magmatic province in central-eastern Asia, 3) Compiled experimental melt compositions from carbonated and uncarbonated rocks, 4) Details for the partial melting modeling of this study, and 5) Modelled δ26Mg and pyroxenitic mass contributions for adiabatic melts from mantle sources containing variable fractions of silica-deficient pyroxenite本数据集包含以下5部分内容： 1) 狼山玄武岩与煌斑岩（lamprophyre）的主量元素（Major element）、微量元素（trace element）及Sr-Nd-Pb-Mg同位素数据； 2) 东亚中东部110 Ma以来板块内玄武岩岩浆省（intraplate basaltic magmatic province）的主量元素、微量元素及Mg同位素数据汇编； 3) 碳酸化与未碳酸化岩石的实验熔融熔体成分（experimental melt composition）汇编； 4) 本研究的部分熔融模拟（partial melting modeling）细节； 5) 针对由含不同比例贫硅辉石岩（silica-deficient pyroxenite）的地幔源区（mantle source）形成的绝热熔体（adiabatic melt），经模拟得到的δ²⁶Mg值及辉石岩质量占比。