Fluid Inclusion Study on Gold-Copper Mineralization in Lower Devonian Strata of the Kelan Basin , Altay , China
详细信息
- 责任者：Xu Jiuhua (Resource Engineering Department ; University of Science and Technology Beijing ; Beijing 100083 ; China) ; Xiao Xing
- 刊名：Acta Petrologica Sinica
- 出版年：2011
- 卷期：27(5)
- 关键词：金矿 ; gold ores ; 铜矿 ; copper ores ; 流体包裹体 ; fluid inclusions ; 阿尔泰山 ; Altai Mountains
- 页码：p.1299-1310
- 图表：6 illus., 2 tables, 35 refs.
- 分类号：1001
- issnNo：ISSN1000-0569
- isbnNo：CN11-1922/P
摘要
The southern margin of the Altai Mountains had undergone intensive NW-SE compression since the Late Devonian to the Early Permian, which resulted in syn-orogenic metamorphism, deformation and hydrothermal mineralization. This was another important mineralizing epoch after the Early Devonian VMS mineralization. Not only had VMS ores undergone deformation and metamorphism, but also gold-copper-bearing sulfide-quartz veins formed during orogeny or post-orogeny. These quartz veins can be divided into two groups. There are two instances for melting temperatures of frozen phases(Tm, CO2). Based on field geology and fluid inclusion study, the source of ore-forming fluids is related with regional metamorphism and associated magmatism.