Abstract
In order to improve the comprehensive prospecting effect, wide field electromagnetic instrument system is used in Liaoning Benxi ore concentration areafor large depth and high precision geological mapping experimental work, 2D inversion imaging work is conducted based on nonlinear conjugate gradient method, the true resistivity characteristics of geo-electrical section of the ore concentration area is obtained, the ore-body shape is clearly delineated, the strata distribution, structure patterns and fracture characteristics of the area are basically identified. The results show that the wide field electromagnetic method can be effectively applied in the research of geological mapping in the ore concentration area. Keywords—wide field electromagnetic method; geological mapping; strata; structure; fracture
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