Petrogenetic Links Between Carbonatites and Kimberlites

这项工作将包括硅酸盐-碳酸盐-二氧化碳-水体系的熔融实验，并应用于金伯利岩和碳酸盐岩的成因，这两种岩石与地幔过程直接相关。该项目将追踪减少的挥发性成分及其交代和岩浆效应，从地幔深处通过氧化到它们在近地表岩浆中的固结或演化。最近开发的关于基莫尔岩、霞石和碳酸盐成因的综合岩石成因方案将在实验中使用适合岩石反应研究的重组比例的天然矿物进行测试。

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.