吊舱式直升机频率域电磁系统 在广东龙门地区的勘查效果

以2005年广东龙门地区1:5万比例尺的直升机航空电磁、磁综合测量资料为基础,并结合地质矿产资料,对广东龙门地区的航磁异常特征、航空电磁异常特征与矿产的关系进行了分析与研究.尤其是利用本次工作研究的电磁异常特征分类法对该区的航空电磁局部异常进行了分类,有效地识别了电磁干扰异常,优选了对找矿有意义的电磁异常.经过对优选的3处局部异常进行地面查证,空地异常对应良好,并指出了多处对找矿有意义的地下良导体.

THE EXPLORATION EFFICIENCY OF THE HELICOPTER ELECTROMAGNETIC SYSTEM IN LONGMEN, GUANGDONG PROVINCE

Based on the data of 1:50 000 helicopter electromagnetic and magnetic comprehensive survey in Longmen, Guangdong Province in 2005, in combination with the geological and mineral sources data, the authors analyzed and studied the relationship between the mineral resources and the aeromagnetic or aeroelectromagnetic anomaly characteristics in Longmen area. The local aeroelectromagnetic anomalies were classified by using the classification method for electromagnetic anomaly characteristics, and the anomalies resulting from electromagnetic interference were identified. Based on field inspection of three optimized local anomalies, the authors found that the air and ground anomalies are well consistent with each other. In addition, some significant good underground conductors were detected.