A preliminary report on model studies of magnetic anomalies of three-dimensional bodies

Geophysics
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Abstract

Model experiments were made to devise a rapid method for calculating magnetic anomalies of three-dimensional structures. The magnetic fields of the models were determined using the equipment at the Naval Ordnance Laboratory, White Oaks, Md. An irregularly shaped mass was approximated by an array of prismatic rectangular slabs of constant thickness and varying horizontal dimensions. Contoured maps are being prepared for these magnetic models at different depths and for several magnetic inclinations. The fields of these three-dimensional structures are obtained by superimposing the appropriate contoured maps and adding numerically the effects at each point. The equipment and laboratory methods are described. Theoretical and practical examples are given.

Publication type Article
Publication Subtype Journal Article
Title A preliminary report on model studies of magnetic anomalies of three-dimensional bodies
Series title Geophysics
DOI 10.1190/1.1438277
Volume 21
Issue 3
Year Published 1956
Language English
Publisher Society of Exploration Geophysicists
Description 21 p.
First page 794
Last page 814
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