Abstract
We start by recalling some elements of magnetism. In a bar magnet each pole is regarded as being concentrated at a point near, but not at, the end of the magnet. The line joining the poles is called the magnetic axis and the distance between them is called the magnetic length 2ℓ. For a simple bar magnet the magnetic length is usually 5/6 the length of the bar.
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Suggestions for Further Reading
Carmichael, CM., 1964. The magnetization of a rock containing magnetite and hemoilmenite, Geophysics, 29, 87–92.
Cook, K.L., 1957. Quantitative interpretation of vertical magnetic anomalies over veins, Geophysics, 15, 667–686.
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© 1981 A. E. Beck
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Beck, A.E. (1981). Magnetic methods. In: Physical Principles of Exploration Methods. Palgrave, London. https://doi.org/10.1007/978-1-349-16605-3_6
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DOI: https://doi.org/10.1007/978-1-349-16605-3_6
Publisher Name: Palgrave, London
Print ISBN: 978-0-333-26394-5
Online ISBN: 978-1-349-16605-3
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