Geological Characteristics and Metallogenesis of Porphyry Copper Deposits in Junggar, Xinjiang
详细信息
- 责任者：Yang Fuquan (MLR Key Laboratory of Metallogeny and Mineral Assessment ; Institute of Mineral Resources ; Chinese Academy of Geological Sciences ; Beijing 100037 ; China) ; Yan Shenghao
- 刊名：Mineral Deposits
- 出版年：2010
- 卷期：29(6)
- 关键词：斑岩铜矿床 ; porphyry copper deposit ; 准噶尔盆地 ; Junggar Basin
- 页码：p.956-971
- 图表：5 illus., 3 tables, 49 refs.
- 分类号：1001
- issnNo：ISSN0258-7106
- isbnNo：CN11-1965/P
摘要
In this paper, the geological characteristics of porphyry copper deposits in Junggar of Xinjiang are reviewed in the metallogenic-tectonic context. The ore-forming fluids of the Baogutu and Yunyingshan deposits were mainly derived from magmatic fluids, whereas the Halasu and Yulekenhalasu deposits were mainly derived from magmatic fluids, with some contributions from meteoric water. Sulfur isotope composition of the porphyry copper deposits is around 0‰, indicating that the ore-forming materials were probably derived from the mantle or the mantle-related magmas. The ore-forming processes of the porphyry copper deposits are closely related to intermediate, intermediate-felsic and felsic porphyry intrusions. The porphyry copper deposits in Junggar were formed in three tectonic settings, i.e., continental arc, ocean island arc and post-collision settings.