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Magnetic-Doublet Theory in the Analysis of Total-Intensity Anomalies

By
Roland G. Henderson
Roland G. Henderson
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Isidore Zietz
Isidore Zietz
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Published:
January 01, 1967

Abstract

Analysis of horizontal- or vertical-intensity magnetic anomalies in terms of equivalent magnetic doublets has been extensively used for rough estimates of depth and depth extent of disturbing rocks. In this investigation, factors have been theoretically determined by which appropriate total-intensity anomalies can also be analyzed in terms of their magnetic-doublet equivalents. The effectiveness and limitations of the method have been checked by application to anomalies derived from model experi-ments and to observed anomalies. For satisfactory results the effective radius of the disturbing body must be less than its depth of burial. The calculation of doublet length is not so reliable as the calculation of depth; however, the former is better at low magnetic latitudes.

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Contents

Mining Geophysics Volume II, Theory

Don A. Hansen
Don A. Hansen
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Walter E. Heinrichs, Jr.
Walter E. Heinrichs, Jr.
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Ralph C. Holmer
Ralph C. Holmer
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Robert E. MacDougall
Robert E. MacDougall
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George R. Rogers
George R. Rogers
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John S. Sumner
John S. Sumner
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Stanley H. Ward
Stanley H. Ward
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Society of Exploration Geophysicists
ISBN electronic:
9781560802716
Publication date:
January 01, 1967

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