Integrated Seismic and Magnetotelluric Imaging of Deep Geological Structures in Australia
Geological structures can be expressed by interpretation of a mix of geophysical data. The raw measured geophysical data have ambiguous structural information and the needs of understanding their data can be satisfied by the help of inversion approaches and their cooperative analyzed results. In our work, collocated seismic and magnetotelluric datasets are used for interpreting deep geological structures in Australia. The magnetotelluric method consisting of the interaction between electromagnetic fields' propagations can give hints of true electrical conductivity distribution underground through inverted results; meanwhile, the seismic method using mechanical vibrations' fields to earth can image its structures through the seismic reflectivity attributes. The interpretation approach is based on separate inversions of each geophysical dataset, followed by the overlay of their integrated images. Geological features such as layers, faults, and the Moho interface can be well interpreted by the combination of the two geophysical data. © 2026 Institute of Electrical Engineers of Japan and Wiley Periodicals LLC.