瞬变电磁在可可塔勒铅锌矿床中的应用  

Application of the Transient Electromagnetic (TEM) Technology to the Keketale Pb-Zn Deposit in Xinjiang

作　　者：于淼[1] 梁锋[2] 申茂德 郭正林 王铁军[4] 

机构地区：[1]中国地质大学(北京),北京100083 [2]中国地质科学院矿产资源研究所,北京100037 [3]新疆有色地质勘查局,新疆乌鲁木齐830000 [4]中钢集团天津地质研究院,天津300181

出　　处：《地质与勘探》2013年第4期723-730,共8页Geology and Exploration

基　　金：中央专项资金项目新疆可可塔勒铅锌矿及外围预普查(Zyzxyc2006-11)资助

摘　　要：可可塔勒铅锌矿床位于阿尔泰山南缘麦兹盆地,是新疆目前发现的最大的铅锌矿床之一。在该矿区部署了2条二维测线,开展了大回线源瞬变电磁数据采集和处理,试图根据所观测的电磁异常圈定深部矿体。对异常解释的钻探验证结果显示,反演结果的低阻异常与实际矿体对应很好,电阻率的空间分布特征与矿体在深部的延伸与地层倾向一致,为该矿区资源潜力评价提供了依据,也是在其它矿区开展类似深部勘探的借鉴。The Keketale Pb-Zn ore deposit, one of the largest Pb-Zn deposits in Xinjiang, is located in the Maizi basin on the southern margin of the Altai Mountains. This work has deployed two 2-D survey lines in this mine area for data collection and processing of the large-loop transient electromagnetie （TEM） sounding. Tile purpose is to delineate deep ore bodies in terms of electromagnetic anomalies observed. The drilling verification to anomaly inter- pretation shows that the low-resistivity anomalies from inversion results correspond well to the locations of real ore bodies in the subsurface. And spatial distribution of electric resistivity values coincides with extension of ore bodies at depth and stratum inclination direction. These results provide evidence for appraisal of resource potential of this deposit. And the trial survey using the TEM technique in this area can serve as a reference for similar work at other deposits.

关 键 词：瞬变电磁 铅锌矿 深部探测 大回线源 可可塔勒新疆 

分 类 号：P618[天文地球—矿床学]