摘要
在吉林省敦—密断裂以北，花岗质岩石分布面积占６０％以上，是不同构造岩浆期、不同构造环境条件下的空间组合混合体。结合近几年取得的基础地质成果和构造编图工作，认为吉林北部古生代花岗质岩石可初步划分为五个构造岩浆演化阶段。各阶段具有不同的大地构造环境，从总体上看，在演化上具有由拉张至挤压交替出现的构造环境。
Tbe northern Dunhu-Mishan fault of Jilin province, the area of granitic rocks make upmore than 60%, which is a spatial mixed body in different tectonomagmatic stage and tecton-ic setting。On the basis of the basic geological results and structural mapping recently years,it is considered that the Paleozoic granitic rocks in the northern part of Jilin province can beinitally divided 5 tectoiiomagmatic evolutionary stages that have different geotectonic set-tings,and having the geotectonic settings from alternate extension to compression in evolu-tion.
出处
《吉林地质》
1995年第1期64-70,共7页
Jilin Geology
关键词
花岗质岩石
演化阶段
构造环境
花岗岩
The,northern part of Jilin province Granitic rocks Evolutionary stageTectonic setting
