Preliminary analysis of environment dimensionality by using quick 3 D visualization of magnetotelluric invariants

Abstract

Magnetotelluric method could express Earth structures through images of electrically resistivity distribution in 1D, 2D and 3D views. Although it is affected by non - unique of solutions, it is one of the great methods to investigate the Earth in the big dep th. Magnetotelluric inversion is one effecting way to recover resistivity information of the measured area. However, it is time consuming in computing and labour resource efforts. We would like to suggest on workflow in which we can interpret the magnetote lluric data quickly and efficiently. Normally, raw data is hardly interpreted but existence of the Earth parameter as resistivity could relate to invariants of magnetotelluric data. We suggest Zs - Zp invariants to image the Earth briefly by taking use of th eir Zs - Zp structural images. We apply the workflow into 3D modelling data and real data measured in Australia. We compare the Zs - Zp invariants structures with the correct boundary information of the 3D model. For the real data, we use seismic data and seis mic attributes to have correct boundary and geology structures to valid the correction of the Zs - Zp with the seismic information.