By contrasting compositistion and analysis of granitic normal weight , rare-earth and trace elements , it is used to judge the origin and structure environment of granitic.

• 通过对该区花岗岩的常量元素、稀土元素及微量元素成分进行分析和对比研究,对花岗岩的成因及形成的构造环境进行了综合判别。