基于广域电磁法的准南山前带砾石层勘探攻关试验
张光大, 古志文, 邹忠平

The key test of gravel exploration in the piedmont area of Zhunan Mountain based on the wide field electromagnetic method
ZHANG Guang-Da, GU Zhi-Wen, ZOU Zhong-Ping
图6 1线广域电磁法反演电阻率二次导数高分辨率成图
Fig.6 High resolution mapping of second derivative of resistivity by WFEM in line 1