Abstract

Summary The paper proposes the approach to 3D modeling and 3D inversion in which the observed data are the second and third invariants of the magnetic gradient tensor. This enables not only to detect the bodies with abnormal magnetic properties but also the magnetization vector direction. This, provides additional opportunities for further geological interpretation. In order to calculate the abnormal magnetic field, we propose to use two approaches: analytical and numerical. The analytical approach is used in the case when the abnormal magnetic bodies are characterized by only remanence and/or magnetic permeability differing from the vacuum magnetic permeability not more than 10%. We present the results of comparison of the numerical and analytical methods and results of 3D inversion on the synthetic magnetic gradiometry data, which are obtained for the complex model containing two bodies with remainence; same direction as the Earth’s magnetic field and the distributed structure with remanence in the opposite direction to the Earth’s magnetic field. The approach proposed for mathematical processing the magnetic gradiometry data allows not only the general detection of the abnormal magnetic structures but also the delineation of local bodies the magnetization vector direction which is different from the magnetized surrounding structure.

Full Text

Published Version

Talk to us

Join us for a 30 min session where you can share your feedback and ask us any queries you have

Schedule a call

Disclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.