Citylink Qing Lanping County, Yunnan Copper District High-frequency Magnetotelluric Method (EH4) Inference And Interpretation Of Abnormal Study

LianChengqing wellknown medium-sized copper mining area is located in the JinMan copper periphery, with the full deposit for the transform type copper deposits. As the mining resource consumption, resources crisis mines, urgent need depth prospecting breakthrough. High-frequency magnetotelluric method (EH4) accuracy, high resolution, detection of effective depth of1000m, reflects the obvious advantages of low resistance anomalies, EH4work in mining area, the purpose is looking for copper mine resources crisis.Lianchengqing wellknown mining high-frequency magnetotelluric method to complete1209wild EH4data collection, and160rock ore samples.Together in this paper, the regional ore-forming conditions and metallogenic prospect of wellknown copper mining area, around the known ore deposit geology, ore deposit geological characteristics, as well as summary, on the statistical analysis of the rock (ore) stone mining area geophysical characteristics. Use EMAGEM software do2D inversion of EH4data, using linear interpolation for1550m elevation plane anomaly map, according to the abnormal distribution situation judgment has three anomaly zone as a whole. In profile, in view of each anomaly zone, selection of EH4section and the anomaly characteristics of the geological profile analysis, according to the abnormal and abnormal wear of the cutting of the stratum, structure of distribution location in relation to the do to abnormal section or gas; On the plane, the comprehensive geological, tectonic and geochemical exploration, mining, tunnel, known mineralization points such as data analysis, made a decision, the abnormal high three zones for prospecting is expected.In this paper, comprehensive analysis of geological, geophysical, geological, surveying the measuring area geological map; According to the characters of the tendency of EH4abnormalities in profile, combined with the different elevation the occurrence in tunnel, revised predecessors thought ore body dip west incorrect views (revised to eastward tilt); Of EH4won three prospecting significance anomaly zone, to carry out field geological investigation, discovered the36copper (), copper (change) more points along the anomaly zone distribution, and the discovery of the copper mineralization points confirmed EH4method is effective. Three anomaly zone in the migration of anomaly zone2and3for new discoveries. Pointed out the direction for mining area the next step prospecting work.