物探化探计算技术2025，Vol.47Issue(4)：508-516,9.DOI:10.12474/wthtjs.20240422-0001
二连盆地锡林浩特地区地空电磁法响应特征试验研究
Experimental study on response characteristics of surface-to-air transient electromagnetic method in Xilinhot area of Erlian Basin
摘要
Abstract
The actual application effects of surface-to-air transient electromagnetic exploration are influenced by factors such as flight speed,flight altitude,and offset distance.This paper starts with experimental data from the Xilinhote area in the Erlian Basin,analyzing the response patterns of the surface-to-air electromagnetic system under different observation system parameters.The experimental analysis primarily compares the dBz/dt response curves at the same point or the multi-time track voltage response curves along the measurement line at different flight altitudes,speeds,and offset distances.The experimental results indicate that in this region when arranging the measurement line with parallel transmitting dipoles and with a dipole distance of 1.8 km and a current of 7.5 A,the maximum offset distance in the experimental area should not exceed 1,000 m.Subjecting the experimental flight data of this paper to one-dimensional inversion,the results are essentially consistent with the known geophysical exploration results in the area,demonstrating the reliability of the experimental data.The experimental results presented in this paper can serve as a reference for selecting key parameters for surface-to-air transient electromagnetic observation systems in similar regions.关键词
地空电磁系统/电磁响应/二连盆地Key words
surface-to-air transient electromagnetic system/electromagnetic response/Erlian Basin分类
天文与地球科学引用本文复制引用
张伟盟,陈志财,祁平,骆燕,陈伟,程莎莎..二连盆地锡林浩特地区地空电磁法响应特征试验研究[J].物探化探计算技术,2025,47(4):508-516,9.基金项目
中国核工业地质局基础地质项目(202242-5) （202242-5）
