- 责任者：Dai Jie (Chengdu Institute of Geological Survey ; China Geological Survey ; Chengdu 610081 ; China) ; Xu Jinsha
- 刊名：Rock and Mineral Analysis
- 出版年：2011
- 卷期：30(6)
- 关键词：微区分析 ; micro-zone analysis ; 金 ; gold
- 页码：p.655-663
- 图表：13 illus., 5 tables, 20 refs.
- 分类号：0900
- issnNo：ISSN0254-5357
- isbnNo：CN11-2131/TD
In this paper, the technique of advanced microbeam analysis using a Scanning Electronic Microscope (with back scattered electron photo), characteristic X-ray line scanning, line-by-line scanning and Energy Dispersive Analysis identification were used to observe micro-fine gold hosted in Liwu copper ores. The results show that gold in Liwu copper ores was hosted as isomorphism in Ag-bearing kustelite and bismuth minerals, which disseminate in the cracks of chalcopyrite, pyrrhotite and Mn bearing magmatite. The hydrothermal ore samples from the Liwu Cu deposit were formed at the middle-late stage of Yanshan 104~142.2 Ma by tectonic movement and metallogenic hydrothermal activities, which was later than the peak mineralization at the middle stage of Yanshan.microsoft-com:office:office" />