博罗科努古生代复合岛弧带西段多金属矿的磁电特征与找矿模式  

Magneto-electrical characteristics of polymetallic deposits in western section of Boluokenu Paleozoic composite island-arc belt and its prospecting model

作　　者：杜化宇 刘建军[1,2] 李晓禄 伍显红[1,2] 杨玉勤 宋振涛[1,2] DU huayu;LIU Jianjun;LI Xiaolu;WU Xianhong;YANG Yuqin;SONG Zhentao(Airborne Survey and Remote Sensing Center of Nuclear Industry,Shijiazhuang 050002,Hebei,China;Key Laboratory for Geophysical Exploration Technology Center of Uranium Resource,CNNC,Shijiazhuang 050002,Hebei,China)

机构地区：[1]核工业航测遥感中心,河北省石家庄050002 [2]中核集团铀资源地球物理勘查技术中心(重点实验室),河北省石家庄050002

出　　处：《矿产与地质》2017年第6期1147-1152,共6页Mineral Resources and Geology

基　　金：中国地质大调查项目"秦岭及天山等重点成矿区带航空物探调查"项目之子项目"新疆博乐-新源地区航空物探(磁;放)调查"(编号:121201203000160006-27)资助

摘　　要：博罗科努古生代复合岛弧带是铜金和铅锌多金属矿产的主要成矿带,成矿类型有矽卡岩型和斑岩型。通过桦木沟界兰得萨依矽卡岩型铜锌金矿和喀拉布拉克铜金矿的磁电特征研究,认为"岩体附近的正磁异常和相对低阻高极化激电异常"成为识别多金属矿床的间接定位标志。依据磁电特征,建立了地质-地球物理找矿模型。Boluokenu Paleozoic composite island-arc belt is a main metallogenic belt of copper-gold and leadzinc polymetallic mineral resources,and it is featured by skarn type and porphyry type mineralization.After studying magneto-electrical characteristics of Jielandesa skarn type Pb-Zn-Au deposit in Huamugou and Kalabulake Cu-Au deposit,the authors believed that"the positive magnetic anomalies and induced polarization anomalies with relatively low resistance and high polarization in the vicinity of rock bodies"became indirect location clues for polymetallic deposits.This paper set up the geological-geophysical prospecting model based on the magnetic characteristics.

关 键 词：矽卡岩型多金属矿 斑岩型多金属矿 航磁异常 激电异常 地质-地球物理找矿模型 博罗科努古生代复合岛弧带 

分 类 号：P632[天文地球—地质矿产勘探]