MAGNETOACOUSTIC EMISSION OF NATURAL PYRRHOTITE
V.S. Ivanchenko1, I.I. Glukhikh1, L.G. Strokina1, K.B. Aleshin2, V.F. Rudnitskii2
1Institute of Geophysics, Ural Branch of the Russian Academy of Sciences, ul. Amundsena 100, Yekaterinburg, 620016, Russia
2Ural State Mining University, ul. Kuibysheva 30, Yekaterinburg, 620144, Russia
Keywords: Magnetoacoustic emission, domain structure, movement of domain walls, pyrrhotite, magnetic field, ferrimagnetic material, antiferrimagnetic material
Abstract
We consider data of study of the parameters of magnetoacoustic emission performed on pyrrhotite from magnetite and pyrite ores from the deposits of the Urals. It is shown that the difference in signals is mainly due to different types of domain structure which forms during the crystallization of pyrrhotite as pinacoids or prisms. Five types of pyrrhotite are recognized depending on the parameters of magnetoacoustic emission. This information can be used as typomorphic features of pyrrhotite of different geneses.
DOI: http://dx.doi.org/10.1016/j.rgg.2014.10.010
|
