【摘要】 通过扼要介绍南加州Ｃａｔａｌｉｎａ片岩和西阿尔卑斯Ｍｏｎｖｉｓｏ基性榴辉岩的变质流体作用研究方面的新成果，认识到古俯冲带的大规模流体运移主要发生在前弧下深度为１０～５０ｋｍ处，来自俯冲板片的富ＬＩＬＥ、ＬＲＥＥ、Ｂ等元素的流体向上运移，并与上覆地幔楔发生大规模交代作用。而在前弧下深度大于５０ｋｍ处，流体主要保存于俯冲板片中，并向下运移，流体的流动和交代都是有限的、小规模的更多还原

【Abstract】 The new development in the metamorphic fluid research of the Catalina Schist in south California and Monviso basic eclogite in western Alps is briefly introduced in this paper. Large scale fluid flow occurred predominantly at sub forearc depths(10—50 km). LILE,LREE and B rich fluids deriving from the subduction slab migrated upwards and metasomatism happened within overriding mantle wedge in large scale. At sub arc depths (>50 km), fluids retained in the subducting slab and flowed downwards. The flow and metasomatism of fluids are limited and in small scale.更多还原