多期变质作用变质矿物共生组合、演化分析─—以冀东洒河桥地区为例  

METAMORPHIC MINERAL ASSOCIATION AND EROLUTION ANAL YSIS IN MULTIPLE METAMORPHISM IN SAHEQIAO,HEBEIPRORINCE

作　　者：张丽霞[1] 

机构地区：[1]华东地质学院地球科学系

出　　处：《华东地质学院学报》1995年第4期322-329,共8页Journal of East China Geological Institute

摘　　要：冀东迁西洒河桥是太古代麻粒岩相变质岩系广泛出露的地区。这里曾先后经历了角闪麻粒岩相、石榴麻粒岩相、角闪岩相的变质作用。在角闪岩相交质之前发生了一次大规模的混合岩化作用。本文以此区为例，论述了多期变质作用过程中变质矿物的共生组合与演化方式，说明变质矿物的组合不仅受原岩成分控制，也受变质条件控制，同时活动性组分对矿物组合的出现有很大影响。Archaean era granulite facies metamorphite series are extensively outcropped in Sa- heqiao , Hebei province. It is subected to the metamorphism of hornblende-granulite subfacies,garnet-granulite subfacies and hornblendete subfacies here, Before the hornblendite subfaciesmetamorphism ,a great scale migmatization is taken place. This paper deals uith the form of metamorphic mineral association and evolution in multiple metamorphism, It is showed that metamor- phic mineral association is controlled by not only protolith component but aiso metamorphic condi- tions. At the same time active component make a great influence on it.

关 键 词：变质作用 矿物 共生组合 演化 变质岩 

分 类 号：P588.34[天文地球—岩石学]