Petrogenetic Links Between Carbonatites and Kimberlites

这项工作将包括硅酸盐-碳酸盐-二氧化碳-水系统的熔融实验，并应用于与地幔过程直接相关的金伯利岩和碳酸盐的起源。该项目旨在追踪从深部地幔通过氧化作用到近地表岩浆固结或演化的还原挥发性组分及其交代和岩浆作用。将利用天然矿物按适合岩石反应研究的比例重新组合的实验，来检验最近为钾辉石、钠辉石和碳酸盐的起源制定的综合岩石成因方案。

This work will consist of experiments on melting in silicate- carbonate-CO2-H2O systems with applications to the origin of kimberlites and carbonatites, which relate directly to mantle processes. The project is to trace the reduced volatile components and their metasomatic and magmatic effects from deep mantle through oxidation to their consolidation in or evolution from near-surface magmas. Comprehensive petrogenetic schemes developed recently for the origin of kimerlites, nephelinites and carbonatites will be tested in experiments using natural minerals recombined in proportions suitable for rock reaction studies.