基于重磁多尺度边缘检测的长江中下游成矿带构造格架研究

采用重磁多尺度边缘检测方法,对长江中下游成矿带区域重力和航磁数据进行了边缘检测,结合大地电磁剖面和地质资料,建立了长江中下游地区构造格架.根据重磁多尺度边缘检测结果,重新厘定了断裂系统的展布位置,确定了宁芜、庐枞等火山岩盆地的准确边界,划分了板块、火山岩盆地等横向结构的边界.认为长江深断裂沿安庆-铜陵北-芜湖-马鞍山-...

Tectonic Framework Research of the Lower and Middle Reach of the Yangtze River Metallogenic Belt Based on Gravity and Magnetic Multi-scale Edge Detection

Through the establishment of different depths and different physical properties (magnetic susceptibility, density) model of the body, forward of its gravity, ground magnetic response, compared to the current edge enhancement and several commonly used detection methods, multiscale edge detection method that the model Boundary Ability to identify the strongest. Using the method of the Yangtze River metallogenic belt of regional gravity and aeromagnetic data for the edge detection, combined with magnetotelluric profiles and geological data, to establish a structural framework structure of the Yangtze River, the initial determination of the Yangtze River deep fault, major fault Tanlu Distribution system such as fault location, dividing the plate, such as horizontal structure of the volcanic basin boundary. On this basis, analysis of the Yangtze River metallogenic belt of the main ore zone and tectonic framework of the relationship between the formation of the ore district deep background.