In recent years, with the discovery of many new deposits such as Chating copper-gold deposits, Nanling-Xuancheng area is expected to be a new ore district in the middle and lower reaches of the Yangtze river. Magushan copper deposit is developed in Magushan area of southern Nanling-Xuancheng, but due to the large quaternary strata coverage and shallow geological exploration, its deep geological structure is not clear, which has affected the deep exploration of hidden deposits in this area. Based on geophysical gravity and magnetic data, and constrained by known geological mapping and exploration data, this paper conducted 2.5D joint inversion and in-depth analysis of the deep geological structure of Magushan area. At the same time, the interpretation results are corrected and determined by combining the 3D geological modeling technology and the 3D geophysical forward modeling method. The results show that the 3D geological modeling technology and the 3D geophysical forward modeling method can provide the basis and means for correcting the 2.5D gravity and magnetic joint inversion results. The analytical results can better elucidate the deep geological structure of Magushan area, and combined with the analytical results and the ore-prospecting prediction conditions, it can delineate the hidden ore-prospecting prediction target area and provide more reference information for ore-prospecting work.
Ye Rui Li Xiaohui Yuan Feng Ding Wenxiang Zhang Mingming Lu Sanming Li Jianshe Zhou Yuzhang Lan Xueyi Guo Dong Tao Long. A study on deep geological structure analysis of Magushan area based on gravity and magnetic joint inversion[J]. Chinese Journal of Geology, 2019, 54(3): 876-892.