混合岩的基本特征及其在岩理学上的存在

详细信息

BASIC FEATURES OF MIGMATITE AND ITS EXISTENCE IN PETROLOGY

摘要: 用Ｐ－Ｔ图解说明岩石从低温到高温必经的４个阶段：未变质的岩石→变质岩（狭义）→重熔型混合岩→岩浆岩，从而指出重熔型混合岩化作用阶段是不可逾越的。从图２中的Ｎ线→Ｇｒ域→Ｃ″（或Ｃ＇）线的高温一侧，岩石从脱水反应→去硅脱碱作用→全部重熔，岩汁和交代型混合岩化作用必将产生。

Abstract: By means of the P-T diagram, this paper indicates four stages that rock must experiencefrom low temperature to high temperature mixing: unmetamorphosed rock→metamorphic rock（in narrow sense）→anatectite→magmatic rock, and then points out that the stage of anatectit-zation cannot be overstepped.