The application of AMT method to the electrical structure study:A case study of Suqian sector of Tan-Lu Fault Zone
TIAN Zhan-Feng1, MAO Xing1,2, LUO Xu1, JIN Sheng1,3, YE Gao-Feng1,3
1. Key Laboratory of Geo-detection, Ministry of Education, China University of Geosciences, Beijing 100083, China;
2. China Railway Fifth Survey and Design Institute Group Co., Ltd., Beijing 102600, China;
3. State Key Laboratory of Geological Processes and Mineral Resources, Beijing 100083, China
Audio magnetotelluric (AMT) method was employed to study the F2 and F5 branch concealed faults in Suqian sector of Tan-Lu fault zone. 4 AMT profiles were finished in the south of Suqian that included 176 AMT sites. By using advanced data processing and 2-D inversion called Non Linear Conjugate Gradients, the authors got reliable underground geoelectric models. In combination with the other geophysical data, the authors analyzed electrical structure and explained the location and attitude of F2 and F5 faults, and inferred that the activity of F5 faults is stronger than that of F2 faults. This result provides the basis of geological line selection and construction safety for Xusu-Huaiyan Railway.
田占峰, 毛星, 罗旭, 金胜, 叶高峰. 音频大地电磁测深法在电性结构研究中的应用——以郯庐断裂带宿迁段为例[J]. 物探与化探, 2016, 40(4): 732-736.
TIAN Zhan-Feng, MAO Xing, LUO Xu, JIN Sheng, YE Gao-Feng. The application of AMT method to the electrical structure study:A case study of Suqian sector of Tan-Lu Fault Zone. Geophysical and Geochemical Exploration, 2016, 40(4): 732-736.