In order to make the new technology of geophysical to better service for prospecting in Qimantage area. Based on integrated consideration about the deposit type, method and technology advantages and disadvantages and so on, we select Xiarihamu copper nickel mine as experiment area.the methods including physical measurement, downhole TEM and ground TEM, The results show that the rock (ore) with "low resistivity, high polarization, high density, strong magnetic", it's also indicate that this area has the prerequisites for gravity, magnetic and electrical exploration. The downhole and ground TEM method experiments results are in good agreement with the actual drilling data and geological profile. Transient electromagnetic method validity test achieved the desired effect. It supplies an effective and practical geophysical method for copper nickel mine prospecting in Qimantage in future.
[1] 朴化荣.电磁测深原理[M].北京:地质出版社,1990.[2] 牛之琏.时间域电磁法原理[M].长沙:中南工业大学出版社,1992.[3] 蒋邦远.实用近区磁源瞬变电磁法勘探[M].北京:地质出版社,1998.[4] 孟庆鑫,潘和平.地—井瞬变电磁响应特征数值模拟分析[J].地球物理学报,2012,55(3):1046-1053.[5] 陈贵生.瞬变电磁法(TEM)勘察研究[D].长沙:中南大学,2001.[6] 杨庆华,张小路,王钟,等.物探方法寻找隐伏岩浆岩型铜镍矿床[J].桂林理工大学学报,2010,30(2):208-216.[7] West R C,Wardt S H.The borehole transient electromagnetic response of a three-dimensional fracture zone in a conductive half-space[J].Geophysics,1988,53(11):1469-1478.[8] McNill J D,Edwards R N,Levy G M.Approximate calculation of the transient electromagnetic response from buried conductors in a conductive half-space[J].Geophysics, 1984,49(7):918-924.[9] Lee S K,Buselli G.Underground and down─hole transient electromagnetic modeling[J].Exploration Geophysics,1987,18(2):130.[10] King A. Cindered coal detection using transient electromagnetic methods[J].Geoexploration, 1987,24:367-379.[11] Woods D V.A model study of the crone borehole pulse electromagnetic (PEM) system. M.Sc. Thesis, Queen's University, Kingston, Ont.1975.[12] Hughes N A,Ravenhurst W R.Three component DHEM surveying at Balcooma[J].Exploration Geophysics,1996,27:77-89.[13] Johnson D M, Sheppard S, Paggi J,et al.Discovery of the Moran massive nickel sulphide deposit using down-hole transient electromagnetic surveying[J].ASEG Extended Abstracts,2010,(1):1-4.
