新疆西昆仑红黄岭一带铅锌矿地质特征及矿床成因  

Geological Characteristics and Deposit Origin of Lead-Zinc Deposits in the Honghuangling Area of West Kunlun,Xinjiang

作　　者：拓步瑞 张文璟 李磊佳 王星 张义斌[2] 钱焕亭 吴天奇 叶康华 王志罡 Ta Burui;ZhangWenjing;Li Leijia;Wang Xing;Zhang Yibin;Qian Huanting;Wu Tianqi;Ye Kanghua;Wang Zhigang(Northwest Geological Exploration Institute of China Metallurgical Geology administration,Xi’an,Shaanxi,710119,China;Northwest Bureau of China Metallurgical Geology Bureau,Xi’an,Shaanxi,710119,China)

机构地区：[1]中国冶金地质总局西北地质勘查院,陕西西安710119 [2]中国冶金地质总局西北局,陕西西安710119

出　　处：《新疆地质》2025年第1期44-53,共10页Xinjiang Geology

基　　金：新疆地质勘查基金(K17-3-XJ025);陕西省自然科学基金(2024JC-YBQN-0352)共同资助。

摘　　要：红黄岭一带铅锌矿位于火烧云铅锌矿带东侧,赋存于上三叠统克勒青河组碎屑岩中,受NE向构造控制。铅锌矿体呈脉状产出,主要赋存于构造破碎带中,少量赋存于张性裂隙带中。应力分析显示NW向应力时间早,挤压性质,成矿作用弱。NE向应力时间晚,张扭性质,成矿作用强。流体包裹体研究显示:主成矿期包裹体均一温度平均值为290.4℃,盐度平均值为3.7%,为中温低盐度流体,区别于MVT型铅锌矿低温高盐度流体。方铅矿中δ^(34)S_(V-CDT)平均值为4.1,硫主要来源为深部岩浆,有地层硫的代入。铅同位素指示成矿物质来自下地壳。红黄岭一带铅锌矿为受河尾滩深大断裂次级断裂控制的中温热液脉型铅锌矿。The lead-zinc deposits in the Honghuangling area are located on the eastern side of the Huoshan Yun lead-zinc deposit belt,occurring within the clastic rocks of the Kelerqinghe Formation of the Upper Triassic System,and are controlled by northeast-trending structures.The lead-zinc ore bodies occur as veins,primarily in faulted zones,with secondary occurrences in tensional fracture zones.Stress analysis indicates that northwesterly stress occurred earlier,characterized by compression,resulting in weak mineralization.Northeastward stress occurred later,characterized by tension and torsion,leading to strong mineralization.Fluid inclusion studies show that during the main mineralization period,the average temperature of the inclusions is 290.4℃,and the average salinity is 3.7wt.%NaCl equiv,indicating medium-temperature low-salinity fluids,distinct from the low-temperature high-salinity fluids found in MVT-type lead-zinc deposits.Lead sulfide containsδ^(34)S_(V-CDT)The average value is 4.1,with sulfur mainly originating from deep magma and the substitution of strata sulfur.Lead isotopes indicate that the ore minerals come from the lower crust.In summary,it is believed that the lead-zinc deposits in the Honghuangling area are controlled by medium-temperature hydrothermal veins of the secondary fault of the Heyuotan major fault.

关 键 词：铅锌矿 流体包裹体 地质特征 矿床成因 红黄岭 

分 类 号：TF812[冶金工程—有色金属冶金] O614.241[理学—无机化学]