| High-precision Magnetic Method is an important method of mineral prediction method, which is mainly used to find non-ferrous minerals, and can be used for dividing construction, delineation of rock and so on.Research area of Au-Cu polymetallic ore deposits and basic rock of gabbro, pyroxenite has a close relationship. Au-Cu ore deposits are mainly located in hornblende norite gabbro tension fracture filling quartz veins and contact zone. In this paper, obvious physical differences between gabbro, pyroxenite rock and country rock as a precondition. Using the method of high precision magnetic survey technology delineation of concealed rock body and division of tectonic. By optimizing precision magnetic survey data processing and interpretation, include gridding, smoothing, reduced to the pole, filtering, extension and other data processing and inversion methods, then block out the prediction region. Through the interpretation of magnetic survey results for validation combining the IP interpretation, geochemical exploration, trenching and drilling engineering, It confirmed the analysis method of magnetic survey in indirect search for the important role of tectonic altered rock type Au-Cu ore deposits. |
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