| This paper takes "General survey of Jiazhangzi gold mine in Chaoyang County,LiaoningProvince"project, the purpose is through technology of geophysical exploration methodanalysis research to gold as the main direction, porphyry type gold deposit subvolcanichydrothermal type gold deposit, as the main target, the relationship between research on theorigin of gold orebody and geophysical data, thus sum up relevant rules and calculationmethod is of guiding significance to the practical work experience.Distribution of work area of gold mineralization is closely related with the distribution ofthe main body of the time the volcano rock, and there is a direct link between volcano hydrothermal activity and invasion and volcano activity time volcano rock strength.Another important factor is the N-N-E structure, because the formation of the census area of geophysical and geochemical anomaly, mineralization body and mineralization bodies once volcano rock genetic relationship, always along the N-N-E trending tectonic belt (Jia Zhang Zi-Sun Jia Dong Gou) distribution, mineralized bodies also exist in the NNE structural fracture zone. Therefore, the census area of gold mineralization formed, mainly with the NNE structure and sub volcanorock emplacement carry up ore bearing hydrothermal relevant, size and activity intensity in the ore bearing hydrothermal ore, gold or not depends on the degree of. Polymetallic mineralization in gold deposits formed at the same time, often formed by silicification, sericitization, epidotization, chloritization and carbonatization altered the composition of the alteration assemblages, the most obvious visible mineralization mainly pyritization and later secondary change limonitization, this is also an important symbol of district census gold mineralization. The metallogenic type should be a continental sub volcano hydrothermal type.In this paper, on the basis of fully utilizing the project achievement, according to the areaof rock (ore) differences stone, combined with the geological background, metallogenic characteristics of the region, the use of high density magnetic method, IP intermediate gradient andIP sounding to several methods of exploration. Using the geophysical high-precision magneticsurvey, bowel ladder method of electric in the delineation of strata and rock mass, the favorable ore-forming place, preferably and reduce prospecting target areas, macro division of the zone of fracture tectonic framework, enrichment area delineated area metal sulfide, Au, Ag etc. for multi metal sulfide ore bed (body) to provide geophysical information; electrical soundingof induced polarization method to determine the cause of the abnormal polarization of geological body depth and occurrence features, provide geophysical basis for the lower tunnel, drilling deep validated.Through the analysis of geophysical, geological information survey area, and makes a comprehensive study on tight, discovered and delineated the sensing area with many anomalies. |
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