摘要:
变质相是应用物理化学的概念和原理来研究变质岩中的矿物共生组合及其形成时的物化条件。在变质地区的区测找矿和科研工作中,变质相已成为研究岩石变质作用条件的主要内容。目前国内外已经或正在编制的变质图的主要内容是变质相组和变质相系,它们也都是以变质相作为基础。自从艾斯柯拉（Eskola,1915）建立变质相的概念以来已经60多年了,虽然这一概念已被国内外的地质工作者所普遍采用,但是在关于变质相的确切定义上,在确定变质相
Abstract:
Metamorphic facies aims at studying mineral assemblages of metamorphic rocks and their formative conditions by applying physico-chemical concepts and principles.In regional surveys,mineral prospecting and research work in metamorphic terranes,metamorphic facies has become the major content in the study of metamorphic conditions of rocks. Metamorphic facies and metamorphic facies series are now also the major content of the metamorphic maps already compiled or being compiled at home and abroad. The concept of metamorphic facies introduced by Eskola（1915）has been widely applied by geologists both at home and abroad,but there are a lot of controversies regarding some problems of metamorphic facies,and there are divergent opinions on the number,nomenclature and classification criteria of metamorphic facies. In response to the demand for the compilation of the Metamorphic Map of China, the author analysed and studied relevant data both at home and abroad,and in consideration of the cases in some metamorphic terranes in China, the author has proposed a scheme of classification and nomenclature of regional metamorphic facies.In this scheme, regional metamorphic facies is divided into 1aumontite facies,prehnite-pumpellyite facies,lower greenschist facies,higher greenschist facies,lower amphibolite facies,higher amphibolite facies,granulite facies,glaucophae schist facies and eclogite facies.The discussion focuses on the criteria for classfication of the above-mentioned. regional metamorphic facies.
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