Details of the Abstract
| Title of paper | Two-dimensional magnetotelluric inversion with coupled seismic information revealing deep resistive structure in the hinterland of Junggar Basin |
| List of authors | Author Luolei Zhang, Co-Author Chongjin Zhao, Co-Author Peng Yu, Co-Author Zuwei Huang, Co-Author Han Song |
| Affiliation(s) | State Key Laboratory of Marine Geology, Tongji University, Shanghai, China;State Key Laboratory of Marine Geology, Tongji University, Shanghai, China;State Key Laboratory of Marine Geology, Tongji University, Shanghai, China;State Key Laboratory of Marine Geology, Tongji University, Shanghai, China;State Key Laboratory of Marine Geology, Tongji University, Shanghai, China |
| Summary | The Junggar Basin, located between the Tarim Plate, the Kazakhstan Plate, and the Siberian Plate, preserves significant geological records of important tectonic movements and hosts rich oil and gas resources, making it a key area for research. To better understand the deep electrical structure of the Junggar Basin and its formation mechanisms, this study conducts inversions of two magnetotelluric profiles in the hinterland of the basin. The goal is to reveal the deep electrical structure of the basin's hinterland. To achieve a more accurate deep resistivity structure of the study area, this paper introduces a regularization inversion method for two-dimensional magnetotelluric data constrained by seismic information. This is achieved by using regional cosine similarity constraints of model residual vectors or model gradient vectors. The advantages and effectiveness of the new method are demonstrated through complex theoretical models. Subsequently, through the inversion of actual data from two profiles in the study area, we obtained high-resolution deep electrical structures in the hinterland of the Junggar Basin. Based on these results, we inferred the main formation mechanisms of the Junggar Basin. |
| Session Keyword | 2.0 EM theory, modelling and Inversion |
| File upload |
2.0_two-dimensional_magnetote_zhang.pdf
|