新疆小于赞金矿流体包裹体分析及与加曼特,阿希金矿的比较研究

Analysis of Fluid Inclusions in the Xiaoyuzan Gold Deposit and Comparison with the Jiamante and Asif Deposits in Xinjiang

新疆小于赞金矿床石英中存在富液相气液两相包裹体、富气相气液两相包裹体和纯液相包裹体。包裹体均一温度为108~237℃,主要集中在130~180℃。测得的冰点温度范围为-0.1^-6℃,对应的盐度为0.18~9.21 wt%Na Cleqv,密度范围在0.82~1.04 g/cm3,在分析的过程中所测得的数据包括均一温度、冰点温度以及密度都在较低值区域分布。通过阿希金矿、加曼特金矿进行了系统的比较分析,认为小于赞金矿可能属于中低温低盐度低密度热液型矿床。

We discovered that there exist gas-liquid two-phase liquid-rich,gas-liquid two-phase vapor-rich and pure liquid inclusions in the quartz of the Xiaoyuzan gold deposit in Xinjiang. These inclusions have homogenization temperature ranging from 108℃ to 237℃,mostly concentrating in 130 ~180 ℃. The measured freezing temperature is between-0. 1 ^-6 ℃,corresponding to salinity 0. 18 ~ 9. 21 Wt% NaC l and the density range of 0. 82~ 1. 04 g / cm3. In the analysis process,the measured data comprising uniform temperature,freezing temperature and density are all in a low-value range.Comparison with the Asif and Jiamante gold deposits suggests that the Xiaoyuzan gold deposit can be classified as a hydrothermal deposit with moderate temperature,low salinity and low-density.