摘要
研究区矿区矿床类型为构造控矿的热液脉型铅锌多金属矿.矿床类型及矿物组合决定了矿体具有"相对中低阻高极化"的物性特征,与围岩有明显的物性差异,这决定了激发极化法在本区探测铅锌多金属矿的有效性.五极纵轴测深法相比较于传统的视电阻率测深法,具有分辨力强、解释简便、探测深度大、工作效率高等优点.在研究区矿区寻找热液型铅锌多金属矿,采用五极纵轴测深法,根据对视极化率和视电阻率拟断面图的综合分析,结合物性资料和已有的钻孔资料,查明了铅锌矿体的空间分布特征,取得了较好的找矿效果.五极纵轴测深法对于该类铅锌多金属矿的勘查具有推广意义.
The deposit origin type is a lead-zinc polymetallic ore deposit of hydrothermal vein type.The deposit type and mineral assemblage determine the physical characteristics of the ore body with"relatively low resistance and high polarization",and have obvious physical difference with the surrounding rock,which determines the effectiveness of the method of excitation polarization in the exploration of lead-zinc polymetallic ore in this area.Compared with the traditional apparent resistivity sounding method,the five electrode longitudinal axis sounding method has the advantages of high resolution,simple interpretation,large detection depth and high efficiency.In the search for hydrothermal lead-zinc polymetallic deposits in this mining area,the electrode longitudinal axis sounding method is adopted.Based on the comprehensive analysis of the apparent polarization map,the apparent resistivity map,the physical property data and the drilling data,we have achieved good prospecting results.The five electrode longitudinal axis sounding method is of great significance to this exploration of lead-zinc polymetallic deposits.
作者
刘文伟
赵艳梅
黄元有
张小兵
李忠
张春晓
LIU Wen-wei;ZHAO Yan-mei;HUANG Yuan-you;ZHANG Xiao-bing;LI Zhong;ZHANG Chun-xiao(Yunnan Institute of Land Resources Planning and Design,Kunming 650216,China;Yunnan Institute of Geological Survey,Kunming 650216,China)
出处
《云南大学学报（自然科学版）》
CAS
CSCD
北大核心
2020年第S02期65-70,共6页
Journal of Yunnan University(Natural Sciences Edition)
基金
云南省地质勘查基金(K2013037).
关键词
五极纵轴测深
激发极化法
铅锌多金属矿
构造热液型
滇西南
five electrode longitudinal axis sounding
induced polarization method
lead-zinc polymetallic ore
tectonic hydrothermal type
Southwest Yunnan
作者简介
刘文伟(1987-),男,江西人,工程师,主要研究物化探工作.E-mail:745454365@qq.com.
