论文部分内容阅读
河北雾灵山碱性花岗质杂岩主要由似斑状碱长正长岩、碱长正长斑岩、碱性石英正长岩和碱性石英正长班岩组成，是华北地区燕山晚期岩浆活动的代表。本文系统报道了它的地质学、岩相学、岩石化学和地球化学的特征，讨论了它的成因类型归属和所代表的大地构造环境问题。这些资料表明；该杂岩体形成于白垩纪早期，是一个剥蚀程度较小、定位于浅成环境的硅饱和碱性－过碱性岩杂岩体，属裂谷－类裂谷Ａ型花岗岩类，它的出现表明华北地区早白垩纪时期曾处于板内裂谷－类裂谷的引张环境。
The Wuling Mountain alkaline granitic complex in Hebei Province is mainly composed of plagioclase-like plagioclase, base-long plagioclase, alkaline quartz syenite and alkaline quartz-Changbangyan. It is a component of Late Yanshanian magmatism in North China representative. This paper systematically reports its characteristics of geology, petrography, petrochemistry and geochemistry, and discusses the genesis of its genetic type and the geotectonic environment represented by it. These data indicate that the complex was formed in the early Cretaceous and is a slightly denudated, localized silicon-saturated alkaline-perbasal complex, which belongs to rift-type rift A-type granite Its appearance shows that it belonged to the lead environment of intraplate rift-type rifts during the Early Cretaceous in North China.