地幔交代作用：研究进展、问题及对策

有关地幔交代作用的研究始于７０年代早期。近２０年来研究工作的贡献是使人们对与地幔演化和不均一性有关的地幔交代作用特征和交代作用机制有了更多的了解，地幔交作用很复杂，它取决于交代作用发生的时间、构造环境、交代介质的种类以及与不同深度地幔内各种地质事件有关的流体的组成。进一步深入开发有关交代作用成因、机制及其与各种地质事件关系的研究，对于深入认识岩石圈地幔的演化和不均一特征具有十分重要的意义。对不同构

MANTLE METASOMATISM:PROGRESSES,PROBLEMS AND COUNTERMEASURE

This paper is a review for metasomatic processes in the mantle. The studies pertinent to mantle metasomatism began in the early 1970s. Since that time the contributions of the studies to our understanding of the nature and the mechanism of the mantle metasomatism involved in the evolution and heterogeneity of the mantle has been considerable.All of the studies show that mantle metasomatism may be very complex depending on the time, place, the type of agent and the nature of the fluid with various decoupled and cyclic events occurring at different depths of the mantle. Hence, future study pertinent to the generation, mechanism and conditions of the metasomatic processes in the mantle will undoubtedly prove to be as important for understanding depthly the evolution and heterogeneity of the mantle as those covered in this review. It may be very effective methods and ways for solving the generation, mechanism and time relationships between magmatism and metasomatism, to study depthly xenoliths from different place and type for metasomatism constraints, to combine traditional geology and petrology with modern test technique, and to combine subjects containing geology, petrology, geochemistry with geophysics.