The Possibility of Obtaining nearby 3D Resistivity Structure from Magnetotelluric 2D Profile Data Using 3D Inversion

详细信息   

• 责任者：Lin Changhong (State Key Laboratory of Geological Processes and Mineral Resources ; China University of Geosciences ; Beijing 100083 ; China) ; Tan Handong
• 刊名：Chinese Journal of Geophysics
• 出版年：2011
• 卷期：54(1)
• 关键词：大地电磁法 ; magnetotelluric methods
• 页码：p.245-256
• 图表：12 illus., 1 table, 17 refs.
• 分类号：1600
• issnNo：ISSN0001-5733
• isbnNo：CN11-2074/P

摘要

 Based on the analysis of 3D tensor impedance response generated from the test models and on the study of the inversion results of synthetic data and field data, we discuss the possibility of obtaining nearby 3D resistivity structure from magnetotelluric 2D profile data using 3D inversion. The results show that it is possible to interpret 2D profile data using 3D inversion method. Not only a reasonable image beneath the profile but also reasonable pictures of nearby 3D structure which can not be got by 2D inversion can be obtained using all tensor elements of the 2D profile data in the 3D inversion.