1887

Abstract

Summary

Accurate depth estimation of magnetic sources plays a crucial role in various geophysical applications, including mineral exploration, resource assessments, and geological mapping. Thus, this paper presents a fast and simple method of estimating the depth of a magnetic body using the TDX derivative of the total magnetic field. TDX is a first-order derivative of the magnetic field that, in addition to edge detection, is less affected by noise, allowing for better depth resolution. The reduced sensitivity to noise enables a clearer estimation of depth and enhances the accuracy of the depth determination process. The TDX, as a variant of the phase derivative, is independent of magnetization and can be used to identify the edge of a magnetic body. In this study, we explore the utilization of contour of the TDX derivative for estimating depth, assuming a vertical contact source. We demonstrate the effectiveness of the method using a two-prism block model and a simple bishop model with a uniform susceptibility of 0.001 cgs. The results agree with the known depth, providing evidence of the reliability of the method despite the restrictive nature of the assumption, especially for the Bishop model, where there are numerous fault structures.

© EAGE Publications BV
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/content/papers/10.3997/2214-4609.2024101566
2024-06-10
2026-02-08

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/content/papers/10.3997/2214-4609.2024101566
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Depth to Magnetic Source Estimation Using TDX Contour
Conference Proceedings 2024, 1 (2024); https://doi.org/10.3997/2214-4609.2024101566
/content/papers/10.3997/2214-4609.2024101566
/content/papers/10.3997/2214-4609.2024101566
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