Research on Au-Ag Characteristics and Occurrence State of Ga’erqiong Copper Deposit, Tibet, China
详细信息
- 责任者：Gong Tingting (College of Earth Sciences ; Chengdu University of Technology ; Chengdu 610059 ; China) ; Xiao Yuanfu
- 刊名：Journal of Chengdu University of Technology
- 出版年：2013
- 卷期：40(2)
- 关键词：铜矿 ; copper ores ; 西藏 ; Tibet
- 页码：p.139-146
- 图表：illus., 2 tables, 22 refs.
- 分类号：1001
- issnNo：ISSN1671-9727
- isbnNo：CN51-1634/N
摘要
The Ga’erqiong copper deposit is an important and representative skarn type copper deposit.The authors make a detailed and systematic study of the ore composition,gold-silver occurrence state and gold-bearing minerals.The results show that the ore-forming process experienced the magmatic hydrothermal period and supergene weathering period while the gold formed in the former.The gold and silver occur mainly as intercrystalline gold and inclusion gold in the form of intermetallic compounds,then fissure gold and film gold.The gold-bearing minerals are iron oxides,metal sulfides,quartz,and so on.The genesis type of the Ga’erqiong copper-gold deposit belongs to the skarn type caused by post-magmatic hydrothermal contact metasomatism.