成都理工学院学报2001，Vol.28Issue(1)：45-47,3.
四川石棉田湾含矿石英脉成因探讨
ON THE ORIGIN OF ORE-BEARING QUARTZ VEINS
IN THE TIANWAN AREA, SHIMIAN, SICHUAN
吴香尧 1骆耀南2
作者信息
- 1. 成都理工学院地质学系,
- 2. 四川省地质勘查局
- 折叠
摘要
Abstract
Our study of the petrochemical characteristics of siliceous dolomite and phyllo nites in the Moxi shear zone demonstrates that phyllonite was formed by shear strain and metamorphism from silceous dolomitite. The results o f mass balance analysis on the phyllonite from the Moxi shear zone are as follows: the Moxi shear zone los t 68% of volume as TiO2 is assumed to be constant. The phyllonite has a loss of Si O2 as compared with the protolith (siliceous dolomite). It is believed that q uartz veins of various shapes were formed by migration and concentration.关键词
硅质白云岩/剪切变形/石英脉/成因分类
天文与地球科学引用本文复制引用
吴香尧,骆耀南..四川石棉田湾含矿石英脉成因探讨[J].成都理工学院学报,2001,28(1):45-47,3.
