Copper-nickel Mine. Funing Long House High-precision Magnetic Anomaly Inference And Interpretation Of Research

Copper and nickel are important nonferrous metals.FuNing was rich in copper-nickel ore.Previous results show that there were 15 copper-nickel ore,mineral occurrence and mineralized points deposited in the study area. It shows that prospecting perspective of copper-nickel in Funing is very good. Boxin Mining Industry Group of Yunnan entrusted Kunming University of Science and Technology with high precision magnetic survey for copper-nickel ore in the study area.Pyrrhotite,pentlandite and chalcopyrite are main mineral in Funing. The magnetic difference between mineral and surrounding rock is great which is indispensable conditions in carry out high precision magnetic survey.The magnetic survey have accomplished 80 survey line,the line space is 50 m, the dot pitch is 20 m, the total length is 102.2Km, the control area is 5.2Km2. The magnetic survey have collected 6080 magnetic data, collected 30 rock specimens and specimen of ore.On the basis of geological, geophysical and geochemical data, this paper summarized the geological characteristics of regional geology and survey area. This paper introduced field data collection of high precision magnetic survey and the quality of data, introduced characteristics of magnetic parameters and electrical parameters and anomalous character of known copper-nickel ore.This paper delineated 16 high precision magnetic anomaly and carried out 3-D transformation of magnetic anomaly in frequency domain,up continuation,multi-scale wavelet towards magnetic anomaly. According to magnetic anomaly characteristics selected 10 profile carring out tangent method to inversion burial depth of magnetic substance, selected 6 profile carring out 2.5-D forward fitting burial depth, extended downward depth and thickness of magnetic substance.This paper have proceed interpretation combining geological, geophysical and geochemical data,characteristics of magnetic parameters with anomalous character of copper-nickel ore. It deduced 2 known copper-nickel ore anomaly,5 anomaly which is hopfully caused by copper-nickel ore,1 anomaly which may be gabbro-diabase containing magnetite,2 anomaly which may be buried basic rock,4 anomaly which may be quick soil or interference and anomaly which is character unknown.Copper-nickel ore is founded in M18 anomaly after drilling inspection.This is show clearly direction for exploration of copper-nickel ore in study area. This paper is meanful to carry out high precision magnetic survey and explore copper-nickel ore.