激电中梯与激电测深法在多金属矿勘探中的物探响应特征研究与矿化异常圈定——以青海省都兰县沟里乡南多金属矿为例  

作　　者：潘语录 谢小虎 赵平 周钰邦 马常勇 

机构地区：[1]青海煤炭地质局,西宁810000 [2]青海煤炭地质勘查院,西宁810000

出　　处：《科技创新与应用》2024年第19期90-94,共5页Technology Innovation and Application

摘　　要：查明青海省都兰县沟里乡南多金属矿(化)体激电特征,可以为钻探布置提供依据。该研究首先采用激电中梯法对勘探区进行扫面工作,圈定5处(M1、M2、M3、M4、M5)低阻高极化异常,并在现有电物性特征和探槽揭露矿体地质资料的基础上,采用短极距激电测深进一步精细查明矿化异常区的空间展布和埋深情况等。研究发现,激电异常与探槽揭露具有良好的对应性,表明激电中梯和激电测深在多金属矿勘查中有较好的找矿效果。Finding out the IP characteristics of the poly metallic ore body in Gouli Township,Dulan County,Qinghai Province can provide a basis for drilling layout.Firstly,the IP medium ladder method is used to sweep the exploration area to delineate 5 medium-low resistivity and medium-high polarization mineralization anomalies(M1,M2,M3,M4,and M5).On the basis of the existing electrical and physical properties and the geological data of the ore body exposed by the exploration trough,the spatial distribution and burial depth of the mineralization anomaly area are further identified by using short pole distance IP sounding.It is found that there is a good correspondence between IP anomaly and trough exposure,indicating that IP ladder and IP sounding have a good prospecting effect in poly metallic ore exploration.

关 键 词：激电中梯 激电测深 多金属矿勘探 地质特征 电阻率 

分 类 号：TD85[矿业工程—金属矿开采]