Geochemical Characteristics of Tailings from the Dexing Copper Mine
详细信息
- 责任者：Pan Hanjiang (Institute of Geophysical and Geochemical Exploration ; CAGS ; Langfang 065000 ; China) ; Cheng Zhizhong
- 刊名：Geophysical and Geochemical Exploration
- 出版年：2013
- 卷期：37(4)
- 关键词：铜矿 ; copper ores ; 尾矿 ; tailings ; 矿床地球化学 ; mineral deposit geochemistry
- 页码：p.627-632
- 图表：illus., 4 tables, 18 refs.
- 分类号：2000
- issnNo：ISSN1000-8918
- isbnNo：CN11-1906/P
摘要
Tailing samples were collected by drilling in No.1 tailing dam from the Dexing mine.The multi-element analytical scheme were applied.The tailing size was determined by the laser grain size analytical instrument,and the mineral form was determined by Xray powder diffractometry.Some conclusions have been reached: The major particles of the tailing are silty,with quartz and sericite as the main minerals,while the content of metal minerals is less than 1%.The water-sorting action and supergene geochemical process in the tailing dam combined with changes in ore grade and mineral processing caused uneven distribution of elements and particle sizes of tailing.The tailing particle size decreases in the direction of the tailing discharge,and the elements can be divided into 3 zones: Cu,Fe,Mo→SiO2,Au→Al2O3,Tl.During the supergene geochemical process,the sulfide was weathered into oxides,which led to the significant decrease of the pyrite content,with the loss of Cu,Mo,S,Fe,Ca and C in tailing.Meanwhile sericite changed into illite.
© 2004-2018 中国地质图书馆版权所有 京ICP备05064691号 京公网安备11010802017129号 地址：北京市海淀区学院路29号 邮编：100083 电话：办公室：(+86 10)66554848；文献借阅、咨询服务、科技查新：66554700 |