Magnetic interpretation in three dimensions using Euler deconvolution

TLDR

Euler deconvolution can rapidly locate magnetic source positions and depths from grid data. The technique uses measured or calculated magnetic gradients, does not require pole reduction, and incorporates a structural index to impose geological constraints. Model studies and a British field example demonstrate that the method accurately locates confined sources, vertical pipes, dikes, contacts, and faults, providing depth‑labeled trends with good precision.

Abstract

Magnetic‐survey data in grid form may be interpreted rapidly for source positions and depths by deconvolution using Euler’s homogeneity relation. The method employs gradients, either measured or calculated. Data need not be pole‐reduced, so that remanence is not an interfering factor. Geologic constraints are imposed by use of a structural index. Model studies show that the method can locate or outline confined sources, vertical pipes, dikes, and contacts with remarkable accuracy. A field example using data from an intensively studied area of onshore Britain shows that the method works well on real data from structurally complex areas and provides a series of depth‐labeled Euler trends which mark magnetic edges, notably faults, with good precision.