Geological Characteristics and Mineralization-Metasomatite Classification of Superlarge Baiganhu Tungsten-Tin Orefield in Western Qimantag, East Kunlun Mountains
详细信息
- 责任者：Li Daxin (Key Laboratory of Metallogeny and Mineral Resource Assessment ; MLR ; Institute of Mineral Resources ; CAGS ; Beijing 100037 ; China) ; Feng Chengyou
- 刊名：Mineral Deposits
- 出版年：2013
- 卷期：32(1)
- 关键词：钨矿 ; tungsten ores ; 锡矿 ; tin ores ; 昆仑山 ; Kunlun Mountains
- 页码：p.37-54
- 图表：illus., 6 tables, 16 refs.
- 分类号：1001
- issnNo：ISSN0258-7106
- isbnNo：CN11-1965/P
摘要
The Baiganhu tungsten-tin orefield is located in Ruoqiang County of Xinjiang,lying in the west of the Qimantag Mountain along the East Kunlun Mountains.The authors hold that several ore deposits such as Kekekaerde Baiganhu,Bashierxi and Aerwa constitute the superlarge tungsten-tin orefield characterized by the combination of the skarn type,the greisenized granite fine veinlet dissemination type and the quartz vein type.Mineralization types show certain extent of distribution and zoning inside the orefield:the scheelite skarn deposit occurs in the outer contact zone of granite,the ore bodies stratoid and lenticular in form distributed in the marble of the epimetamorphic rock series of Jinshuikou Group;the tungsten-tin ore bodies of greisenized granite fine veinlet dissemination type lie inside the small bumps of the granite and extended veins of the outer contact zone,the former is in areal distribution in the form of thick plate lens,and the latter is in linear distribution in surrounding rocks;cassiterite-wolframite ore bodies of quartz vein type are seen in the outer contact zone of the upper bumps of concealed granite.Confined by regional NE-trending Baiganhu deep fault,the ore bodies in the form of parallel veins are filled in epimetamorphic sericite-quartz schist of Jinshuikou Group at a low angle.According to the characteristics of the ore mineral combination,the mineralization alteration in the orefield can be divided into three main types:skarn,greisenization(including albitization,tourmalinization) and silicification.Studies show that three different ore bodies which have genetic relationship with the adamellite invasive activity in Caledonian constitute the metallogenic series of the orefield and belong to the metasomatism of the post-magmatic high temperature-tungsten and tin type.
© 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 |