摘要
吉林省南部辉石花岗岩类的Ｓｍ—Ｎｄ等时年龄为２４４０±８０Ｍａ，Ｒｂ—Ｓｒ等时年龄为２３４３±１１５Ｍａ，分别代表岩浆结晶年龄和后期低角内岩相变质作用年龄。辉石花岗岩晚于英云闪长质片麻岩类和淡色块状花岗岩类，形成于太古宙末期，与地壳伸展崩落作用有关，可以作为地壳克拉通化的标志。
Through the study on quartz mineral characteristics,compositions,transformation temperature of quartz thermal analysis,mass spectrographic features for infrared spectroscopy and absorbance data,the ore bearing quartz or non mineral quartz can be effectively discriminated and were verified through practice.
出处
《吉林地质》
1997年第2期51-55,共5页
Jilin Geology
基金
国家自然科学基金
关键词
辉石花岗岩类
等时年龄
构造意义
花岗岩
Quartz Typomorphic characteristic Application of prospecting Huanggoushan gold mine
