The strata and rock masses in Baoyintu area show obvious magnetic and electrical differences.In order to understand geological and geophysical characteristics of the aeromagnetic anomaly,the authors delineated the areas of ground magnetic anomaly and composite aeromagnetic anomaly by 1:10000 precision ground magnetic survey.The aeromagnetic data processed with methods of reduction to the pole and upward continuation could obtain the magnetic anomaly features such as shape,size and buried depth.The IP sounding could be used to invert the size and extension of the deep orebody or mineralization in the area where there were obvious mineralization characteristics.Then drilling engineering could validate the result of the IP sounding.Finally,combined with the information of geology,IP sounding and drill verification,the authors used Oasis Montaj software to perform human-machine joint constrained inversion for 2.75D magnetic profile data,fitted out the morphological characteristics,and drew relative depth,width and thickness of the anomaly body, thus providing reliable geophysical basis for ore prospecting.
王少帅, 邓国武, 汪冰, 牛海威, 马密堂. 高精度磁测与激电测深在航磁异常查证中的应用[J]. 物探与化探, 2016, 40(5): 916-922.
WANG Shao-Shuai, DENG Guo-Wu, WANG Bing, NIU Hai-Wei, MA Mi-Tang. The application of high precision magnetic survey and IP sounding to the aeromagnetic anomaly verification. Geophysical and Geochemical Exploration, 2016, 40(5): 916-922.
