Preview

Russian Journal of Geophysical Technologies

Advanced search

Mathematical modeling of impulse response of viscous remanent magnetization

https://doi.org/10.18303/2619-1563-2022-2-118

Abstract

TEM survey under objects that containing superparamagnetic particles, the effects of magnetic viscosity can have a significant impact on the received signal. At present, such effects of magnetic viscosity are considered a nuisance, while some researchers point out that they contain useful information.

The article presents a mathematical modeling of impulse response of viscous remanent magnetization. Using the lognormal particle distribution model, various impulse responses of the magnetization were modeled. The results of attempts to restore the distribution parameters  and   of model impulse responses are presented. An estimate of the effectiveness of the inversion of synthetic impulse responses is given.

About the Authors

Ya. K. Leopold
http://www.ipgg.sbras.ru/ru/institute/staff/leopoldyak
Trofimuk Institute of Petroleum Geology and Geophysics SB RAS
Koptyug Ave., 3, Novosibirsk, 630090
Russian Federation


N. O. Kozhevnikov
http://www.ipgg.sbras.ru/ru/institute/staff/kozhevnikovno
Trofimuk Institute of Petroleum Geology and Geophysics SB RAS
Koptyug Ave., 3, Novosibirsk, 630090
Russian Federation


E. Yu. Antonov
http://www.ipgg.sbras.ru/ru/institute/staff/antonovey
Trofimuk Institute of Petroleum Geology and Geophysics SB RAS
Koptyug Ave., 3, Novosibirsk, 630090
Russian Federation


References

1. Buselli G. The effect of near surface superparamagnetic material on electromagnetic transients // Geophysics. – 1982. – Vol. 47 (9). – P. 1315–1324, doi: 10.1190/1.1441392.

2. Dormann J.L., Fiorani D., Tronc E. Magnetic relaxation in fine‐particle systems // Advances in chemical physics, Vol. 48. – John Willey & Sons, Inc., 1997. – P. 283–494, doi: 10.1002/9780470141571.ch4.

3. Dunlop D.J. Özdemir Ö. Rock Magnetism: Fundamentals and Frontiers. – Cambridge University Press, 1997. – 573 p.

4. Kamnev Ya.K., Kozhevnikov N.O., Kazansky A.Yu., Stefanenko S.M. Impulse response of viscous remanent magnetization: laboratory measurements by a pulse induction system // Russian Geology and Geophysics. – 2015. – Vol. 56 (11). – P. 1642–1651, doi: 10.1016/j.rgg.2015.10.010.

5. Kodama K. Application of broadband alternating current magnetic susceptibility to the characterization of magnetic nanoparticles in natural materials // Journal of Geophysical Research: Solid Earth. – 2013. – Vol. 118 (1). – P. 1–12, doi: 10.1029/2012JB009502.

6. Kozhevnikov N.O., Kharinsky A.V., Kozhevnikov O.K. An accidental geophysical discovery of an Iron Age archaeological site on the western shore of Lake Baikal // Journal of Applied Geophysics. – 2001. – Vol. 47 (2). – P. 107–122, doi: 10.1016/S0926-9851(01)00051-9.

7. Néel L. Théorie du trainage magnétique des ferromagnétiques en grains fin avec application aux terres cuites // Annales de Géophysique. – 1949. – Vol. 5. – P. 99–136.

8. Nelder J.A., Mead R. A simplex method for function minimization // Computer Journal. – 1965. – Vol. 7. – P. 308–313.

9. Pasion L.R., Billings S.D., Oldenburg D.W. Evaluating the effects of magnetic soils on TEM measurements for UXO detection // Expanded Abstracts. – Society of Exploration Geophysicists, Tulsa, OK, 2002. – P. 1428–1431.

10. Wang X., Løvlie R., Zhao X., Yang Z., Jiang F., Wang S. Quantifying ultrafine pedogenic magnetic particles in Chinese loess by monitoring viscous decay of superparamagnetism // Geochemistry, Geophysics, Geosystems. – 2010. – Vol. 11 (10). – Q10008, doi: 10.1029/2010GC003194.

11. Worm H.‐U. Time‐dependent IRM: A new technique for magnetic granulometry // Geophysical Research Letter. – 1999. – Vol. 26 (16). – P. 2557–2560, doi: 10.1029/1999GL008360.


Review

For citations:


Leopold Ya.K., Kozhevnikov N.O., Antonov E.Yu. Mathematical modeling of impulse response of viscous remanent magnetization. Russian Journal of Geophysical Technologies. 2022;(2):118-128. (In Russ.) https://doi.org/10.18303/2619-1563-2022-2-118

Views: 228


Creative Commons License
This work is licensed under a Creative Commons Attribution 4.0 License.


ISSN 2619-1563 (Online)