地球学报2012，Vol.33Issue(4)：624-632,9.DOI:10.3975/cagsb.2012.04.22
西藏南木林县浦桑果铜多金属矿床矿石矿物特征及钴、镍元素赋存状态研究
A Study of the Characteristics of Ore Minerals and the Modes of Occurrence of Co-Ni in the Pusangguo Copper Polymetallic Deposit, Namling County, Tibet
摘要
Abstract
Located in the Namling Country of Tibet, the Pusangguo copper polymetallic deposit is a skarn-hydrothermal vein type deposit and lies in the eastern part of the Gangdise belt. The ore mineral compositions and the modes of occurrence of Co-Ni were systematically studied in this paper. The ores are made up of some complex medium-low temperature hydrothermal minerals, such as chalcopyrite, pyrite, galena, marmatite, pyrrhotite and covellite. The modes of occurrence of Co-Ni revealed by means of microscope and scanning electron microprobe indicate that Co-Ni are mainly present as cobaltite (Co 17.87%, Ni 12.66%); and are also scattered in ferrous sulfides, such as chalcopyrite (Co 0.04%, Ni 0.08%), pyrite (Co 0.40%, Ni 0.20%), sphalerite (Co 0.14%, Ni 0.06%), and pyrrhotite (Co 0.79%, Ni 0.18%), in which Co-Ni exist in the form of isomorphous replacement of Fe. The results indicate that there exists a new type of mineralization in the Gangdise belt, and this discovery supplies important information for further exploration.关键词
西藏/冈底斯/浦桑果/矿石矿物特征/Co-Ni元素赋存状态/镍辉砷钴矿Key words
Tibet/ Gangdise/ Pusangguo/ ore mineral composition/ modes of occurrence of Co-Ni/ cobaltite分类
天文与地球科学引用本文复制引用
杨海锐,钟康惠,多吉,普布次仁,高一鸣,崔晓亮..西藏南木林县浦桑果铜多金属矿床矿石矿物特征及钴、镍元素赋存状态研究[J].地球学报,2012,33(4):624-632,9.基金项目
本文由国家973项目(编号:2011CB403103)和青藏专项(编号:1212011085529)联合资助. （编号:2011CB403103）
