The Gravity And Magnetic Date Processing And Interpretation Of The Multi-metal Mining In Daolang And Duge Of Inner Mongolia

In this paper,the study area is the multi-metal mining in Daolangheduge of Inner Mongolia.The area is high latitude cold area in Inner Mongolia, and weathering rock types is physical weathering. In the area, for serious coverage and less outcrop, the main metallic mineral exploration method is gravel tracing method in the past. So prospecting quality is lower.In recent years,some units study on geophysical prospecting method in the area, and got some research results. But because the geophysical data collection limit in study area and its surroundin, the comprehensive research and utilization degree is not enough. Through the gravity and magnetic date processing and interpretation of study area, hope to improve the application effect on research for metallic ore with the integrated geophysical methods. The main working conten:A. Gravity and magnetic data processing method research and preliminary explanation.1. Gravity data processing and preliminary explanation:usual dataprocessing(including analytical continuation, delamination residual gravity anomaly, matched filter separation deep with shallow source field, different continuation height of vertical and horizontal second derivative), three dimensional Euler deconvolution inversion, large depth downward continuation, split calculating of great depth potential field downward continuation three dimensional multiple interpolation cut method, gravity anomaly separation method comparison, apparent density inversion.2. Magnetic data processing and preliminary explanation:polarization, upward continuation comparison, three dimensional Euler deconvolution inversion, large depth downward continuation, split calculating of great depth potential field downward continuation three dimensional multiple interpolation cut method, magnetic anomaly separation method comparison.3. Comprehensive gravity data and magnetic data to explain.B. The target prediction of magnetic prospective.In this paper, by the analysis of the force of gravity and magnetic anomaly data processing, comprehensive research and the geological characteristics, there are5larger fracture structure,5magnetic prospective area and5non magnetic ore prospect areas out.Roughly calculate the size and depth of mineralization commercial target. There will be value to search for multi-metal ores.C. Discuss tungsten ore prospecting and gives recommendations for further work.