A Study of Metallic Sulfides, Quartz REE Composition Characteristics and Genesis of the Mengya’a Lead-Zinc Deposit
详细信息
- 责任者：Wang Liqiang (Institute of Mineral Resources ; Chinese Academy of Geological Sciences ; Beijing 100037 ; China) ; Cheng Wenbin
- 刊名：Geology in China
- 出版年：2012
- 卷期：39(3)
- 关键词：铅锌矿床 ; lead-zinc deposit ; 西藏 ; Tibet
- 页码：p.740-749
- 图表：4 illus., 3 tables, 26 refs.
- 分类号：1001
- issnNo：ISSN1000-3657
- isbnNo：CN11-1167/P
摘要
In this paper, the REE compositions of metallic sulfides and hydrothermal quartz from Mengya’a Pb-Zn deposit were determined by ICP-MS. The studies show that pyrrhotite, chalcopyrite, sphalerite and galena are somewhat different in REE amount, but they all have the distribution patterns of rightly-oblique LREE enrichment type. According to the Eu anomaly, these metallic sulfides can be divided into 3 groups, and the Eu anomalies are mainly caused by the transformation of physical and chemical environment in the ore-forming process and the mass crystallization of calcite.