冀北郭家屯铅锌矿多元异常信息找矿预测  

Prospecting prediction based on multiplex abnormal information of Guojiatun Pb-Zn deposit in northern Hebei

作　　者：王慧 刘庚寅[2] 杨斌[2] 钱进 席振铢[2] 陈燕[2] 梁琴琴[2] 

机构地区：[1]山东招金集团,山东招远265400 [2]中南大学"有色金属成矿预测"教育部重点实验室地球科学与信息物理学院,长沙410083

出　　处：《矿产与地质》2013年第2期158-161,共4页Mineral Resources and Geology

基　　金：国家科技支撑计划资助项目(2006BAB01B07);973计划前期研究专项课题(2007CB416608)

摘　　要：文章详细阐述了冀北郭家屯铅锌矿矿床地质特征、成矿条件与成矿规律,依据围岩蚀变信息、控矿构造信息及岩性接触带信息等针对隐伏矿找矿的地质异常信息及地表构造地球化学晕的空间分布,结合多元统计分析,厘定该测区构造地球化学法找矿元素组合异常标志为Pb-Zn-Ag-Cu。针对Ⅶ-1矿体和Ⅶ-3、Ⅶ-4矿体的深边部区段开展了大地电磁测深,根据电阻率异常圈出控矿断裂空间展布及有利找矿部位。结合地质异常信息、构造地球化学异常信息及大地电磁法测深异常信息的综合分析,圈定找矿靶位7处。This paper elaborates on deposit geological characteristics, metallogenic conditions and ore-forming rules of Guojiatun Pb-Zn deposit. Pb-Zn-Ag-Cu are determined to be element association anomaly clues for prospecting by tectonic geochemical method based on geological anomaly information about prospecting for hidden ore （such as information of wall rock alteration, ore-controlling and lithological contact zone） and distribution of surficial tectonic geochemical halo and multivariate statistical analysis. At the deep part and the edges of Ⅶ-1,Ⅶ-3 and Ⅶ-4 orebodies, magnetotelluric sounding is carried out. The distribution of ore-con- trolling faults and favorable positions for prospecting were delineated according to resistivity anomaly. Seven ore-prospecting targets were delineated according to the comprehensive analysis of geological abnormal infor- mation, tectonic geochemical information and magnetotellurie sounding information.

关 键 词：铅锌矿 地质异常信息 构造地球化学 高频大地电磁测深 找矿预测 郭家屯 冀北 

分 类 号：P618.4[天文地球—矿床学]