矿产普查中航空电磁异常的查证综合解释  

Comprehensive interpretation of airborne electromagnetic anomaly verification in mineral prospecting

作　　者：丁志强[1] 李飞[1] 袁桂琴[1] DING Zhi-qiang;LI Fei;YUAN Gui-qin(Institute of Geophysical and Geochemical Exploration,Chinese Academy of Geological Sciences,Langfang 065000,China)

机构地区：[1]中国地质科学院地球物理地球化学勘查研究所,河北廊坊065000

出　　处：《桂林理工大学学报》2018年第4期726-731,共6页Journal of Guilin University of Technology

基　　金：中国地质调查局项目(1212010610324)

摘　　要：根据航电异常以多金属矿为预测目标,通过对地质、航空物探和地球化学等找矿标志的研究,利用多元地矿信息综合评价,建立了航空电磁异常-地物化分析-地检查证层次分析的综合解释模型;以二连浩特-东乌旗成矿带航空电磁异常为例进行综合解释分析。利用空地多种方法组合多元地矿信息综合解释,降低了单一方法的多解性和不确定性,可提高航空电磁异常解释的科学性和精确性,是快速识别矿化蚀变等有意义异常的有效方法。According to airborne electromagnetic anomaly,polymetallic ore deposits are taken as the prediction target,and ore prospecting markers such as geology.Aeronautical geophysical exploration and geochemistry are studied.A comprehensive interpretation model by airborne electromagnetic anomaly,geophysical and chemical analysis,and anomaly verification step analysis is established in comprehensive evaluation of multivariate geological and mineral information.In addition,the airborne electromagnetic anomaly in Erenhot-Dong Ujimqin banner metallogenic belt is taken as an example for research.The comprehensive interpretation of multivariate geologic and mineral information are used for reducing the multi-explanation and uncertainty of one single method.It is an effective method for identifying the mineralization anomaly.

关 键 词：航空电磁异常 层次分析综合解释 异常查证 二连浩特-东乌旗成矿带 

分 类 号：P631.222[天文地球—地质矿产勘探]