常规物探方法在内蒙莫若格钦多金属矿调查中的应用  

pplication of Conventional Geophysical Prospecting Methods in Morgqin Polymetallic Ore Investigation, Inner Mongolia

作　　者：李荣光[1] 赵希正[2] 徐新学[1] 

机构地区：[1]天津华北地质勘查局519大队,河北保定071051 [2]中国煤炭地质总局信息中心,河北涿州072750

出　　处：《中国煤炭地质》2009年第A02期103-107,共5页Coal Geology of China

摘　　要：野外地质调查和研究结果表明,莫若格钦地区地处二连一东乌珠穆沁旗铜多金属成矿带的核心部位,区内古生代地层分布广泛,中生代花岗岩十分发育,NE向断裂构造复杂,各类物化探异常星罗棋布,是寻找铜多金属矿床的理想地域。搜集整理研究区物性参数发现,本区矿化岩石的高视极化率、低电阻率、高磁化异常为使用大功率激电探测和高精度磁测提供了依据。通过本次勘探,在莫若格钦测区内发现激电异常6处,磁异常3处。经验证,在P1、P2、P3异常地段发现具一定规模的铅锌银矿体,在P4异常地段发现铅锌银和铜银矿化带。Field geological investigation and research results demonstrated that, the Morgqin area is situated at the nucleus of the Erenhot-East Ujimqin Banner copper polymetallic metallogenic belt. Paleozoic strata are vastly distributed in the area, Mesozoic granite well developed, NE oriented fault structures are complicated, star-studded anomalies found out by geophysical and geochemical prospecting are ideal area to look for copper polymetallic ore. Studies on research area physical parameters have found that, the high apparent polarizability, low resistivity and high anomaly of magnetization of mineralized rocks in the area have provided bases to use heavy duty induced polarization method and precision magnetic surveying. Through this prospecting, 6 anomalies of induced polarization and 3 magnetic anomalies have found in Morgqin area. After verification, in P1, P2 and P3 anomalous sectors have found lead-zinc-silver orebodies with certain scopes, in P4 anomalous sector have found lead-zinc-silver and copper-silver mineralized belts.

关 键 词：内蒙莫若格钦 铜多金属矿 大功率激电 高精度磁测 

分 类 号：P631.2[天文地球—地质矿产勘探] P631.3[天文地球—地质学]