桂林理工大学学报Issue(2)：236-242,7.DOI:10.3969/j.issn.1674-9057.2015.02.003
桂西北明山金矿载金矿物的电子探针研究
Electron microprobe analysis on gold-bearing minerals from Mingshan gold deposit in northwest Guangxi
摘要
Abstract
Mingshan Carlin-type gold deposit is located in the northwest Guangxi.Based on microscopic obser-vations and electron proble analysis,the gold content is determined in different generational pyrite and arseno-pyrite from the major gold-bearing minerals.It is shown that the highest content is Au in arsenopyrite,with an average content of 0.186%.The strawberry-type pyrite has higher content of Au in different generations of py-rite,with an average of 0.143%.The coarse-grained pyrite has an average of 0.120%,fine-grained pyrite with an average of 0.128%.Eletron proble analysis shows that the distribution of the invisible gold in different gold-bearing minerals (especially arsenopyrite)is rather inhomogeneous.Therefore,the major modes of occur-rence for gold are the “invisible”microscopic-ultra microscopic inclusions gold grain,with minor ones being“invisible”lattice gold.关键词
毒砂/黄铁矿/金/电子探针/赋存形态/明山金矿/桂西北Key words
arsenopyrite/pyrite/gold/electron microprobe analysis/occurrence/Mingshan gold deposit/northwest of Guangxi分类
天文与地球科学引用本文复制引用
梁国宝,黄同兴,胡明安,杨振..桂西北明山金矿载金矿物的电子探针研究[J].桂林理工大学学报,2015,(2):236-242,7.基金项目
广西地质矿产勘查开发局科研项目 （）
