济南流海庄铁矿床综合物探特征与分析

摘要

采用可控源大地电磁测深(CSAMT)与高精度磁测相结合的综合研究手段，通过对前期高磁资料的常规数据处理，结合此次综合研究剖面资料，以及对已知验证孔的对比研究综合分析，认为高磁性、低电阻为济南流海庄铁矿床隐伏磁铁矿的异常反映。认为该区铁矿体沿闪长岩体与奥陶世灰岩的上下接触界面分布，矿体主体沿接触带向NE缓倾，异常中心可划分为走向近南北，近平行排列的东西2个主矿段，第一矿段位于异常北西部，南东侧为第二矿段。%Inthispaper,byusingthecontrolledsourceaudio frequencymagnetotellurics(CSAMT)and highprecisionmagneticsurveymethods,throughconventionaldataprocessingoftheearlyhighmagnetic data,combiningwithcomprehensivestudyofprofiledata,comparativestudyandcomprehensiveanalysis onwellknownverificationholes,itisregardedthathighmagnetismandlowresistancereflecthiddenmagnetiteanomalyofLiuhaiirondepositinJinancity.Ironorebodiesdistributedalongtheupperandlower contactinterfaceofdioriteandOrdovicianlimestones.Mainorebodyinclinedtonortheastalongthecontactzones,andabnormalcentercanbedividedintotwomainoresectionswiththetrendofSNandEWin parallel.Thefirstsectionlocatedinthenorthwestpartofanomaly,andthesecondonelocatedinthe southeastpart.