New approach of solving Euler deconvolution relation for the automatic interpretation of magnetic data

Abstract

The conventional Euler deconvolution has 5 unknown parameters to be solve which are the location of source (x 0 , y 0 , and z 0 ), the background field and the structural index (SI). Among these 5 unknowns, the SI is to be manually selected by the interpreter. The manual input of SI into the Euler equation makes the technique to be semiautomated. A new technique based on Euler deconvolution that estimate background, horizontal coordinate (x 0 and y 0 ), depth and structural index (SI) of gridded magnetic data is presented. The theoretical and field model study over magnetic sources demonstrates the ability of the method to solve for the source location and nature of the target, the technique does not depend on magnetic latitude. An integrated automated filter which is based on convolution window, SI deviation, regression error and analytic signal is prepared and used for selecting valid solution. Finally, the technique is applied to real magnetic data of Sebarang Jaya, the clustered depth solutions coincided with the high amplitude/values of analytic signal and these are the possible positions of the target being sought. The technique is fast means of magnetic data interpretation and easy to implement as it involves first order derivatives of the field.

Integrated geophysical methods to constrain subsurface structures of Tulu Moye-Bora-Berecha axial volcanic complex, main Ethiopia rift: Implications for geothermal resources

“…The homogeneity equation of Thompson [ 84 ], referred also by Usman et al [ 85 ], serves as the foundation for the 2D Euler deconvolution solution. The following equation is used to compute the 2-D Euler deconvolution: where (x o , z o ) describe the depth and location of the point-analogous source along the profile, ΔT is the observed total field and N is the type of source that best characterizes the anomaly.…”

Automatic Detection of Near-Surface Targets for Unmanned Aerial Vehicle (UAV) Magnetic Survey

“…Furthermore, the result of SW-based Euler method depends on the attenuation of the magnetic field, has nothing to do with the strength of the magnetic field, resulting in a large number of false anomalies, leading to the rise in the number of false targets. Usman et al [28] proposed a few filter techniques to suppress the unreliable Euler solutions by constraining the amplitude of analytical signal after the SW-based Euler deconvolution.…”