西昆仑乔尔天山一带铅锌矿床成矿模型及控矿要素  

Metallogenic model and ore-controlling factors of lead-zinc deposits in the Qiao′er-Tianshan area of western Kunlun Mountains

作　　者：蒋国鹏 李昊 田勇 张磊[1] Jiang Guopeng;Li Hao;Tian Yong;Zhang Lei(No.8 Geologcial Team,Xinjiang Bureau of Geo-Exploration and Mineral Development,Aksu 843000,Xinjiang,China;Institute of Geology and Geophysics,Chinese Academy of Sciences,Beijing 100029,China)

机构地区：[1]新疆维吾尔自治区地质矿产勘查开发局第八地质大队,新疆阿克苏843000 [2]中国科学院地质与地球物理研究所,北京100029

出　　处：《地质学刊》2024年第1期1-8,共8页Journal of Geology

基　　金：中央返还新疆两权价款资金科研项目“新疆西昆仑乔尔天山一带中生代沉积盆地铅锌矿控矿条件及矿床成因研究”(Y15-1-LQ07)。

摘　　要：近年来,在西昆仑乔尔天山一带发现了一批以火烧云铅锌矿床为首的超大型及大中型铅锌矿床,通过研究典型矿床的时空分布与形成机制,认为西昆仑乔尔天山一带中生代盆地铅锌矿床从成因方面可分为沉积-交代型、MVT型及岩浆热液型3种。通过Pb、S同位素分析,初步认为研究区铅锌硫化物具有深源特征,后期生物有机硫部分参与了成矿作用;通过C、O同位素分析,认为成矿热液属于原生成因。在总结成矿物质来源、控矿要素的基础上建立了区域成矿模型,认为沉积相与同生断层是沉积-交代型矿床的主要控矿要素,断裂构造是MVT型矿床的主要控矿要素,岩浆侵入与热液接触交代是岩浆热液型矿床的主要控矿要素。In recent years,a group of super large,large and medium lead-zinc deposits,led by Huoshaoyun Pb-Zn deposit,have been discovered in the Qiao′er-Tianshan area of western Kunlun Mountains.Through the study of the spatiotemporal distribution and formation mechanism of typical deposits,it is believed that the Mesozoic basin lead-zinc deposits in the Qiao′er-Tianshan area of western Kunlun Mountians can be divided into three types in terms of genesis:sedimentary metasomatic type,MVT type,and magmatic hydrothermal type.Pb and S isotope analysis shows that the lead-zinc sulfide in this area is featured with deep source,and the biological organic sulfur partly participated in the late mineralization.C and O isotope analysis reveals that the ore-forming hydrothermal solution belongs to the primary origin.A regional mineralization model was establised by summarizing the sources of ore-forming materials and ore-controlling elements.Sedimentary facies and contemporaneous faults are the main ore-controlling elements of sedimentary metasomatic deposits,fault structures are the main ore-controlling elements of MVT type deposits,and magma intrusion and hydrothermal contact metasomatism are the main ore-controlling elements of magmatic hydrothermal deposits.

关 键 词：矿床类型 成矿模型 控矿要素 铅锌矿 西昆仑乔尔天山 

分 类 号：P611[天文地球—矿床学] P618.4[天文地球—地质学]