Study On Abnormal Interpretation Of High Precision Magnetic Measurement In Shanxinzhuang Iron Mine, Fanshi County, Shanxi Province

Iron is a metal of the most demand in the China’s national economic development. Wutai mountain region is China’s major iron ore production and iron ore prospect areas. Shanxinzhuang iron ore district of Shanxi Province Fanzhi County is located in the wutai mountain region. There exist aeromagnetic anomalies and magnetite mineralization in Shanxinzhuang iron ore district of Shanxi Province Fanzhi County, it has a good ore prospecting potential. Therefore, it carries out the exploration work of the high precision magnetic survey in Shanxinzhuang iron ore district to look for magnetite.Within the mining area to carry out the 1:5000 high-precision magnetic measurement, completed the network 50x10(line spacexpoint space)of high precision magnetic survey area of 21.23 square kilometers, line 151,42619 point of the magnetic measurement, anomalies and mineralization districts encryption to 5 meters. Each of the exploration layout 1:2000 high precision magnetic survey in section profile, anomalies and mineralization districts encryption to 5 meters. The total workload of 40 km.Based on the measured magnetic AT data to deal with field transformation 、 reduction to the pole、upward continuation the interpolation of cutting、the wavelet transform and trend analysis. Finally extract the magnetic forces vertical component is changed accordingly local Zai_J abnormalities, A total of 63, and some Suggestions are put forth regarding the inference and interpretation. Through comprehensive analysis think M26、M27、M31、M32、M34andM47 of six local anomalies they are caused by the ore body M21、M22 of twenty-one local anomalies have Prospecting significance.The remaining thirty-six abnormal properties no prospecting significance.According to the plane feature of the magnetic anomaly, it selected 6 typical profiles and used the man-machine two degrees half inversion, infer the tendency angle, the top buried depth, thickness and decurrent depth of the source body. To provide magnetic survey information for the next step prospecting work.