低缓航磁异常提取技术在寻找隐伏岩体上的应用研究——以五台—恒山地区某隐伏岩体为例  

The application research of extraction technology of low aeromagnetic abnormaly to exploring hidden rock mass:A case study of hidden rock mass in Wutaishan-Hengshan region

作　　者：赵楠[1] 薛生升[1] 张双奎[1] ZHAO Nan;XUE Sheng-Sheng;ZHANG Shuang-Kui(Geophysical and Geochemical Exploration Institute of Shanxi Province,Yuncheng 044000,China)

机构地区：[1]山西省地球物理化学勘查院,山西运城044000

出　　处：《物探与化探》2018年第5期925-931,共7页Geophysical and Geochemical Exploration

基　　金：山西省五台-恒山地区区域资料二次处理与成矿预测研究项目(晋地设发[2013]4号)

摘　　要：五台—恒山地区是山西省重要的铜、金等多金属成矿带之一,与岩浆热液有关的矿床通常与燕山期岩体关系密切。以往主要研究对象为特征明显的航磁异常,并未对低缓异常引起足够的重视。本次利用滑动平均法对1∶5万航磁数据求取剩余异常,进行位场分离,提取出弱磁异常信息,结合地质、重力、化探等综合信息推断该异常可能为隐伏岩体的反映,并对其进行野外异常查证,为本区深入开展找矿或找矿突破指明方向。Wutaishan-Hengshan region is one of the impotant copper and gold polymetallogenic districts in Shanxi Province,the Yanshanian rock mass is closely related to ore deposits.In the past,the main object of the study was strong aeromagnetic anomalies,there is not enough attention to weak anomalies.In this area,by use of residual anomaly method of moving average,weak anomalies are extracted from 1 ∶50 000 aeromagnetic data,and combines with geological,gravityand geochemical exploration,the paper infers the presence of hidden rock mass by outdoor inspection of abnormities,and the prospecting targets and delineated for future geological prospecting work.

关 键 词：燕山期岩体 重磁 剩余异常 滑动平均法 正反演 

分 类 号：P631[天文地球—地质矿产勘探]