冀北雾灵山碱性花岗质杂岩的岩石学,成因类型及构造意义

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。

Petrology, Petrogenetic Type and Tectonic implication of Wulingshan Alkaline Granitic Complex in Northern Hebei Province, China

Wulingshan alkaline granitic complex in nothern Hebei province, composed of porphyraceous alkali feldspar syenite, alkali quartz syenite porphyry, alkali quartz syenite, alkali feldspar syenite porphyry, is a representative rock formed in early Certaceous. The data of geology, Petrology, trace and rare earth element geochemistry of this rock is reported and used to discuss on petrogenic type and tectonic implication.They show that the complex is a silicon-saturated and alkaline to peralkaline A-type granitic series, with low degree of denudation and shallow depth of emplacement. It indicates that a rift-valley tectonic setting was in northern China during the Mesozoic era.