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Magnetoacoustic emission of natural pyrrhotite
Institution:1. Institute of Geophysics, Ural Branch of the Russian Academy of Sciences, ul. Amundsena 100, Yekaterinburg, 620016, Russia;2. Ural State Mining University, ul. Kuibysheva 30, Yekaterinburg, 620144, Russia;1. Mining Department, Faculty of Engineering, University of Kurdistan, Sanandaj, Iran;2. Geology Department, Faculty of Basic Sciences, Tarbiat Modares University, Tehran, Iran;3. Department of Earth and Environmental Sciences, Graduate School of Environmental Studies, Nagoya University, Nagoya, Japan;4. Department of Geological Sciences, Jackson School of Geosciences, University of Texas at Austin, TX 78712, USA;1. Department of Geosciences, University of Tübingen, Hölderlinstr. 12, 72074 Tübingen, Germany;2. Geologie, Technische Universität Bergakademie Freiberg, Bernhard-von-Cotta-Str. 2, 09599 Freiberg, Germany;3. Institute of Tibetan Plateau Research, Chinese Academy of Sciences, Lin Cui Lu 16 Hao Yuan, Beijing 100101, China;1. CARMA, State Key Laboratory of Continental Tectonics and Dynamics, Institute of Geology, Chinese Academy of Geological Sciences, Beijing 100037, China;2. Department of Geology and Env. Earth Science, Miami University, Oxford, OH 45056, USA;3. Faculty of Earth Sciences, China University of Geosciences, Wuhan 430071, China
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.
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