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新疆鄯善县阿奇山铅锌(铜)矿床流体包裹体特征及成矿模式

夏冬, 罗照华, 王君良, 彭玉旋, 朱志新, 杨屹

夏冬, 罗照华, 王君良, 等. 新疆鄯善县阿奇山铅锌(铜)矿床流体包裹体特征及成矿模式[J]. 西北地质, 2020, 53(1): 76-90. DOI: 10.19751/j.cnki.61-1149/p.2020.01.008
引用本文: 夏冬, 罗照华, 王君良, 等. 新疆鄯善县阿奇山铅锌(铜)矿床流体包裹体特征及成矿模式[J]. 西北地质, 2020, 53(1): 76-90. DOI: 10.19751/j.cnki.61-1149/p.2020.01.008
XIA Dong, LUO Zhaohua, WANG Junliang, et al. Fluid Inclusion Characteristics and Metallogenic Model of the Aqishan Pb-Zn (Cu) Deposit, Shanshan County, Xinjiang[J]. Northwestern Geology, 2020, 53(1): 76-90. DOI: 10.19751/j.cnki.61-1149/p.2020.01.008
Citation: XIA Dong, LUO Zhaohua, WANG Junliang, et al. Fluid Inclusion Characteristics and Metallogenic Model of the Aqishan Pb-Zn (Cu) Deposit, Shanshan County, Xinjiang[J]. Northwestern Geology, 2020, 53(1): 76-90. DOI: 10.19751/j.cnki.61-1149/p.2020.01.008

新疆鄯善县阿奇山铅锌(铜)矿床流体包裹体特征及成矿模式

基金项目: 

中国地质调查局天山-北山成矿带地质矿产调查"新疆东天山阿奇山一带铜多金属矿调查评价"项目(12120114041401)

详细信息
    作者简介:

    夏冬(1981-),男,博士研究生,长期从事地质矿产勘查及研究工作。E-mail:agdl@163.com

    通讯作者:

    罗照华(1952-),男,教授,博士生导师,矿物岩石矿床学专业,火成岩岩石学、岩浆活动与成矿作用、区域岩石大地构造研究方向。E-mail:luozh@cugb.edu.cn

  • 中图分类号: P618.3

Fluid Inclusion Characteristics and Metallogenic Model of the Aqishan Pb-Zn (Cu) Deposit, Shanshan County, Xinjiang

  • 摘要: 阿奇山铅锌(铜)矿床是东天山觉罗塔格成矿带西段新发现的大型铅锌(铜)矿床,具有超大型矿床潜力。在分析矿床地质特征的基础上,对主成矿阶段的矿石矿物(闪锌矿、石英、方解石、石榴子石)进行流体包裹体测温和盐度测试。结果表明:包裹体以气液型两相为主,含子晶的三相包裹体少量,气液两相包裹体气液比为5%~10%,均一温度与盐度分别为94.8~440.1℃和4.8%~44.32%;其中闪锌矿明显分为高温闪锌矿(331℃)和低温闪锌矿(145~181℃),盐度主要分布在8%~14%和18%~22%。通过对流体包裹体的研究,结合矿床地质地球化学研究成果,显示阿奇山铅锌(铜)矿床主要存在早期硅酸岩热液和晚期碳酸盐热液2个成矿阶段,二者叠加部位为主成矿阶段,成矿流体具有低温、中盐度的特征,进而总结了矿床成矿模式。
    Abstract: The Aqishan Pb-Zn (Cu) deposit is a newly discovered large-scale Pb-Zn(Cu) deposit in the western section of the Jurassicta metallogenic belt in eastern Tianshan Mountains,with the potential of super-large deposits. Based on the analysis of the geological characteristics of the deposit,the ore minerals (sphalerite,quartz,calcite,garnet) in the main ore-forming stage were tested by fluid inclusion temperature and salinity. The results show that the inclusions are mainly two-phase of gas-liquid; three-phase inclusions containing seed crystals are few. The gas-liquid ratio in gas-liquid two-phase inclusions is 5%~10%,and the uniform temperature is 94.8~440.1°,the salinity is 4.8%~44.32% respectively. Sphalerite is obviously divided into high-temperature sphalerite (331℃) and low-temperature sphalerite (145~181℃). Salinity is mainly distributed in 8~14% and 18~22%.The study of fluid inclusions,combined with the geological and geochemical research of the deposits,shows that The Aqishan Pb-Zn (Cu) deposit mainly exists in the early stage of silicate hydrothermal fluid and in the late stage of carbonate hydrothermal fluid. The interacted part of the two is the main ore-forming stage, with the characteristics of low-temperature and medium salinity in the ore stage,and thus summarizing the ore-forming model of the deposit.
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  • 期刊类型引用(2)

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    2. 李湖,高科. 浅谈新疆鄯善县阿奇山铅锌铜矿地质成因及找矿方向. 世界有色金属. 2020(10): 84-85 . 百度学术

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  • 收稿日期:  2019-07-14
  • 修回日期:  2019-08-07
  • 网络出版日期:  2022-07-28
  • 发布日期:  2020-03-04

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