MAGNETIC AND STRUCTURAL PROPERTIES OF THE NORILSK TYPE ORES CONTAINING COPPER, NICKEL, COBALT

Описание

Тип публикации: доклад, тезисы доклада, статья из сборника материалов конференций

Конференция: International Multidisciplinary Scientific Geoconference (SGEM); Albena, BULGARIA; Albena, BULGARIA

Год издания: 2015

Ключевые слова: ores of the Norilsk type, X-ray, Mossbauer spectroscopy, scanning electron microscopy, Ores of the Norilsk type, Scanning electron microscopy, Electron microscopy, Iron ores, Iron research, Nickel, Ores, X rays, Demagnetizing factors, High temperature crystallization, Mechanical mixtures, Ore formation process, Remanent magnetization, Ssbauer spectroscopies, Thermomagnetic curves, Wide temperature ranges, Solid solutions

Аннотация: Using the magnetic methods, X-ray and Mossbauer spectroscopy, scanning electron microscopy, there were studied the samples of Norilsk type ores in order to identify compounds containing Cu, Ni, Co. The samples have a complex and diverse composition of a wide range of values having the remanent magnetization and its resistance to vaПоказать полностьюrious demagnetizing factors. The presence of steps and peaks on thermomagnetic curves indicates the presence of a mechanical mixture of two or more ferrimagnetic phases. It is confirmed by the discrepancy of the Curie temperature in the "heating-cooling" cycle. The research showed that iron and sulfur are spread irregularly over the scanned area. There are areas, strongly enriched by Cu. The presence of the native elements and the characteristic structures of the solid solutions decomposition testify to the reducing mode of ore formation processes in a wide temperature range. The presence of characteristic structures of solid solutions "pyrrhotite-pentlantide", "pyrrhotite-chalcopyrite" indicates the nature of high-temperature crystallization of sulfide ore in a wide range of temperatures.

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Издание

Журнал: SCIENCE AND TECHNOLOGIES IN GEOLOGY, EXPLORATION AND MINING, SGEM 2015, VOL I

Номера страниц: 269-274

ISSN журнала: 13142704

Место издания: SOFIA

Издатель: STEF92 TECHNOLOGY LTD

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