摘要
内蒙古东部处于得尔布干成矿带上,寻找以钼铅锌矿化为主的热液型隐伏多金属矿体具有广阔的前景,但一直没有实现大型-超大型矿床的突破。本文在某多金属矿区从事多年综合方法找矿的基础上,结合该区地质矿产及其地球化学特征,基于综合物探方法找矿的实践,总结出了一套地质-地球物理综合找矿模型,即:利用高精度磁测查明断裂构造,圈定矿体和矿化体异常带,利用电法对成矿有利地段的地球化学异常开展激发极化法异常查证,配合电测深和电磁测深法查明异常体的地下展布,合理布置钻探工作。利用该模型取得了较好的找矿效果,对指导本区找多金属矿具有广阔的应用前景。
Eastern Inner Mongolia lies in Derbugan belt with molybdenum.There,it has a great prospect of exploring lead-zinc-based hydrothermal buried with polymetallic ore body,but it has not made a breakthrough in setting up large or super large-sized deposits.This paper,on the basis of integrated geophysical exploration in a polymetallic area for many years,combining the area of geology and geochemical characteristics and the practice of integrated geophysical prospecting method,sums up a set of geological-geophysical prospecting model： using high resolution magnetic survey to identify faults,ore body and ore bodies anomaly zone and using electrical sections of the ore favorable to carry out geochemical anomalies induced polarization anomaly inspection,the drilling work is rationally arranged with the sounding and electromagnetic sounding detection methods to explore the abnormal body underground distribution.The model has got a good result and has a broad prospect in exploring polymetallic deposits in this area.
出处
《工程地球物理学报》
2011年第1期55-60,共6页
Chinese Journal of Engineering Geophysics
关键词
内蒙古东部
多金属矿
综合物探
地质—地球物理模型
Eastern Inner Mongolia
polymetallic deposit
integrated geophysical exploration
geology-geophysics model
