摘要
内蒙古苏尼特左旗南部地区岩浆活动强烈，古生代的深成侵入体大面积出露，大小岩体５２个，面积约２３９ｋｍ２。根据岩石谱系单位的划分原则及矿物成分和结构构造特征，划分为１２个单元，归并为３个超单元。在对区内花岗岩的地质特征、岩石化学特征和稀土元素地球化学特征研究基础上。
Magmatic activity was strong in the southern part of the Sonid Left Banner, Inner Mongolia. Paleozoic plutons outcrop over large tracts. There are a total of 52 plutons of varying size, covering an area of about 239 km 2. In light of the principle for the hierarchical division, mineral composition and textures and structures, the plutonic rocks may be divided into 12 units, which are incorporated into three super units. On the basis of the geological, petrochemical and REE geochemical characteristics of granitoids in the study area, the author discusses their evolution and formation environment.
出处
《中国区域地质》
CSCD
1999年第1期46-53,共8页
Regional Geology of China
基金
国家自然科学基金
关键词
侵入岩
岩石谱系
单位划分
岩浆演化
内蒙古
Inner Mongolia, granitic rocks, hierarchical units of rocks, tectonomagmatic evolution
