Fluid Inclusion Evidence for the Superimposition Origin of Sidaogou Gold Deposit in Dandong, Liaoning Province
详细信息
- 责任者：Gong Ruiqing (Jintai Gold limited Corporation ; Longkou ; Shandong ; Longkou 265723 ; China) ; Deng Zhiping
- 刊名：Jilin Geology
- 出版年：2012
- 卷期：31(3)
- 关键词：金矿 ; gold ores ; 叠加成矿作用 ; superposed metallogenesis ; 辽宁 ; Liaoning Province
- 页码：p.39-44
- 图表：illus., 6 refs.
- 分类号：1001
- issnNo：ISSN1001-2427
- isbnNo：CN22-1099/P
摘要
The Sidaogou gold deposit is an important altered-rock type deposit that lies in the southeastern Liaoning Province.Its spatial occurrence were jointly controlled by structure metamorphic strata of the Gaixian Formation and magmatic activities in this region.The mineralization can be classified into three types and four metallogentic stages.Studies on fluid inclusions show that the fluids that were responsible for the formation of gold-poor quartz veins of metallogenic stage in the mining district are medium temperature low salinity and rich CO2 and CH4 hydrothermal solution.The fluids that were responsible for the major metallogenic stage are characterized by medium temperature and high salinity.Based on comprehensive analysis,the conclusion were made that Sidaogou gold deposit was the result of the superimposed mineralization of two kinds of different sourced fluids with different characteristics,it is of superimposition origin ore deposit.