Magnetic susceptibility is the ratio of induced magnetization to the strength of the magnetic field causing the magnetization. Magnetic (susceptibility) anisotropy , in minerals with low crystal symmetry or in rocks with planar or linear fabric, refers to magnetic susceptibility that is not perfectly parallel with the inducing magnetic field because it depends on direction and induced magnetization. Ferromagnetism is a type of magnetic order in which all magnetic atoms in a domain have their moments aligned in the same direction. Ferrimagnetism , another type of magnetic order, macroscopically resembles ferromagnetism. Magnetic ions at different crystal sites are opposed, that is, antiferromagnetically coupled. There is nevertheless a net magnetization because of inequality in the number or magnitude of atomic magnetic moments at the two sites. This type of magnetic order occurs in magnetite. ParamagneticMinerals—those having a small positive magnetic susceptibility, for example,...
This is a preview of subscription content, log in via an institution to check access.
Access this chapter
Tax calculation will be finalised at checkout
Purchases are for personal use only
References
Bates, L. F., 1951. Modern Magnetism, 3rd ed. Cambridge, England: Cambridge University Press.
Davy, N., 1942. The design of pole pieces of electromagnets and the forces acting on small bodies placed in their magnetic field, London, Edinburgh and Dublin Phil. Mag. and Jour. Sci., Series 7. 33, 575.
El-Ashry, M. T., and Nejib, U. R., 1972. Magnetic susceptibility studies of shales from Northern Anthracite Field of Pennsylvania. Am. Assoc. Petroleum Geologists Bull. 56(3), 616–617.
Faraday, R. A., 1931. An improved method for the comparison of small magnetic susceptibilities. Phys. Soc. [London] Proc. 43, 383.
Gouy, L. G., 1889. Compte Rendus Hebdomadaires des Séances de l'Academie des Sciences. Paris, 109, 935p.
King, R. F., and Rees, A. I., 1962. The measurement of the anisotropy of magnetic susceptibility of rocks by the Torque Method. Jour. Geophys. Research 67 (4), 1565.
Lindsley, D. H.: Anderson, G. E.; and Balsley, J. R., 1966. Magnetic properties of rocks and minerals, in S. P. Clark, Jr. (ed.), Handbook of Physical Constants. Geol. Soc. America Mem. 97, 543–552.
Mooney, H. M., and Bleifuss, R., 1953. Magnetic susceptibility measurements in Minnesota—Pt. II: analysis of field results, Geophysics 18, 383–393.
Nagata, T., 1953. Rock Magnetism. Tokyo: Maruzen & Co., 230p.
Nagata, T., 1966. Magnetic properties of rocks and minerals, in Handbuch der Physik [Encyclopedia of Physics], Vol. III. Berlin: Springer-Verlag, 248.
Nejib, U. R., and Anderson, J., 1972. Magnetic characteristics of multi-colored shales from northeastern Pennsylvania, Pennsylvania Acad. Sci. Proc. 46, 123–126.
Pascal, P., 1910. Comptes Rendus Hebdomadaires des Séances de l'Academie des Sciences. Paris, 150, 1054p.
Polushkina, A. P., and Sharkov, A. A., 1974. Nature of magnetic susceptibility of fish fossils. Internat. Geol. Review 16(11), 1214–1219.
Rees, A. I., 1965. The use of anisotropy of magnetic susceptibility in the estimation of sedimentary fabric, Sedimentology 4, 257.
Runcorn, S. K., 1956. Magnetization of rocks, in Handbuch der Physik [Encyclopedia of Physics], Vol. I. Berlin: Springer-Verlag, Berlin, 470–497.
Slichter, L. B., 1942. Magnetic properties of rocks, in Handbook of Physical Constants. Geol. Soc. America Spec. Paper 36, 293–298.
Stacey, F. D., 1960. Magnetic anisotropy of igneous rocks, Jour. Geophys. Research 65(2), 2429.
Van Krevelen, D. W., and Schuyer, J., 1957. Coal Science: Aspects of Coal Constitution. Amsterdam: Elsevier, 257.
Wooster, W. A., and Wooster, N., 1944. Extra-Fine Structure of Coals and Cokes Conf. Proc., 322p.
Editor information
Editors and Affiliations
Rights and permissions
Copyright information
© 1984 Van Nostrand Reinhold Company Inc.
About this entry
Cite this entry
El-Ashry, M.T., Nejib, U.R. (1984). Magnetic susceptibility, earth materials . In: Finkl, C. (eds) Applied Geology. Encyclopedia of Earth Sciences Series, vol 3. Springer, Boston, MA. https://doi.org/10.1007/0-387-30842-3_39
Download citation
DOI: https://doi.org/10.1007/0-387-30842-3_39
Publisher Name: Springer, Boston, MA
Print ISBN: 978-0-442-22537-7
Online ISBN: 978-0-387-30842-5
eBook Packages: Springer Book Archive