新疆西昆仑晚霞山铅锌矿地质特征及找矿标志  

Geological Characteristics and Prospecting Indicator of the Wanxiashan Lead-zinc Deposit in West Kunlun,Xinjiang

作　　者：周晓颖 屈李华 赵芳 Zhou Xiaoying;Qu Lihua;Zhao Fang(The Geophysical Teamof Xinjiang Geology Mineral Explorationand Development,Changji,Xinjiang,831100,China)

机构地区：[1]新疆吾尔自治区地质矿产勘查开发局地球物理化学探矿大队,新疆昌吉831100

出　　处：《新疆地质》2018年第3期342-346,共5页Xinjiang Geology

基　　金：新疆和田县晚霞山一带铅多金属调查评价项目(K15-2-LQ44)

摘　　要：结合区域成矿背景,详细分析了矿区及矿床地质特征、地球物理化学特征、矿石矿物特征及围岩蚀变特征。研究表明:(1)晚霞山铅锌矿属于碳酸盐岩-层控型矿床。矿体受细晶灰岩-碎屑岩接触层位及构造裂隙带控制,呈层状产出,与地层走向一致,主要由方铅矿与闪锌矿组成,矿石类型以浸染状、块状为主。围岩蚀变见硅化、孔雀石化、褐铁矿化、黄铁矿化、方解石化。(2)矿区地层、岩性组合、围岩蚀变、地球物理异常及地球化学异常为有利的找矿标志。To further identify the genetic type of the Wanxiashan lead-zinc ore deposits and summarize the prospecting indicators of the mining area.Based on the regional geological background, the geological characteristics of the deposit, the geophysical-geochemical characteristics, the ore assemblage characteristics and the characteristics of wall rock altera- tion are analyzed in detail. The results show that： First, The Pb-Zn deposits of the Wanxiashan are carbonate rocks-strata bound ore deposits. The orebodies are controlled by the finely crystalline limestone- detrital rock exposed layer and the inter-formational zones and are present parallel to strata, mainly consisted of galena and sphalerite, and massive and dis- seminated structures.Wall rock alterations such as silicification,malachitization,limonition,pyritization and calcitiza- tion are well developed. Second, the favorable prospecting indicators of the mining area are strata lithology,wall rock al- teration and geophysical-geochemical anomalies. The above analysis results related to the metallogenic geological char- acteristics and prospecting indicators of the mining area can provide some reference for the further prospecting and ex- ploration work of lead-zinc deposit in this area.

关 键 词：铅锌矿床 地质特征 矿床成因 找矿标志 西昆仑 

分 类 号：P618.42[天文地球—矿床学] P618.43[天文地球—地质学]