Remanence correction in magnetic interpretation with the infinitely deep plate model |
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Authors: | S E Hjelt E Hallila |
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Institution: | (1) Research Council for Techn. Sciences, Finnish Academy, Finland;(2) Present address: Outokumpu Co., Box 27, SF-02101 Tapiola, Finland;(3) Department of Mining and Metallurgy, Helsinki University of Technology, Otaniemi, Finland |
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Abstract: | Summary Conditions are given under which two thick plates, differing in dip, apparent susceptibility, and remanence, will produce similar magnetic anomalies. From these conditions correction formulae are developed. Using these formulae the dip and susceptibility of a plate with remanent magnetization can be obtained from those of non-remanent plate. An interpretation procedure is suggested where the magnetic anomaly is first interpreted by means of a plate without remanence, dip and apparent susceptibility are then estimated by using the correction formulae developed. Thickness, position and depth of the plate are unaffected by the remanence correction procedure. The procedure is independent of the field component measured. |
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