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| 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 |
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Abstract 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.
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Received: 15 August 2015
Published: 10 August 2016
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