Metallogenic Characteristics of Western Low Altered Tin-Copper Polymetallic Deposit and Its Prospecting Significance in East Part of Gejiu , Yunnan
详细信息
- 责任者：Chen Shouyu (Faculty of Earth Resources ; China University of Geosciences ; Wuhan 430074 ; China) ; Zhao Pengda
- 刊名：Earth Science
- 出版年：2011
- 卷期：36(2)
- 关键词：锡矿 ; tin ores ; 铜矿 ; copper ores ; 多金属矿 ; polymetallic ores ; 云南 ; Yunnan Province
- 页码：p.277-281
- 图表：1 illus., 3 tables, 5 refs.
- 分类号：1001
- issnNo：ISSN1000-2383
- isbnNo：CN42-1233/P
摘要
In this paper, tin-copper polymetallic deposit in western low of the east part of Gejiu is studied through a systematic analysis of its geological setting,geological characteristics of the deposit, characteristics of alterations zoning, geochemical component of altered granite, and deep exploration experience. The results show that the deposit is a part of diverse magmatic hydrothermal mineralization system, which often occurs in the inner altered granite, especially the edge and transition facies. It is a high-temperature magmatic hydrothermal deposit combining with the post-gas-liquid mineralization by the decomposition and gasification of magma in early stage and the alteration of magma intrusion in later stage. The deposit has close relationship with wall-rock alteration, especially potash feldspathization,pyritization, fluoritization and tourmalinization.