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Mineralogical and Technological Features of the Titanium-bearing Sandstones of the Pizhemskoye Depositстатья
Информация о цитировании статьи получена из
Web of Science,
Scopus
Статья опубликована в журнале из списка Web of Science и/или Scopus
Дата последнего поиска статьи во внешних источниках: 6 октября 2021 г.
- Авторы: Sadykhov G.B., Makeyev A.B., Kopyev D.Y., Anisonyan K.G., Zablotskaya Ju V., Olyunina T.V., Balmaev B.G.
- Журнал: Russian Metallurgy (Metally)
- Номер: 9
- Год издания: 2021
- Издательство: Allerton Press Inc.
- Местоположение издательства: United States
- Первая страница: 1143
- Последняя страница: 1154
- DOI: 10.1134/S0036029521090147
- Аннотация: The material composition of pseudorutile-leucoxene sandstones of the Pizhemskoye deposit isinvestigated. It is shown that the formation of minerals of this deposit occurred as a result of metamorphismof primary ilmenite under oxidative hydrothermal conditions with the participation of carbon dioxide, whichproceeded with the removal of iron in the form of iron bicarbonate, followed by its transformation into siderite. The main titanium-containing phases formed during the weathering of ilmenite are pseudorutile(Fe2+,Fe3+)2 – nTi3O9 (modified ilmenite) and leucoxene. As the iron was removed, the voids formed in theore grains of ilmenite were filled with ultrafine quartz, which crystallized from the silica brought by hydrothermal solutions. The products of ilmenite alteration (siderite and iron oxides), as well as clay minerals,could be filtered by meteoric waters through quartz sand (or sandstone) into the lower layers, as a result ofwhich the Pizhemskoye deposit acquired a layered structure. The upper layer is represented by gray-coloredsandstones, characterized by a low content of ferrous minerals. The lower layer is red-colored ferruginoussandstones, and the intermediate layer is red-colored siltstones with a high content of clay and ferruginousminerals. Siderite, crystallizing from hydrothermal solutions in the form of a cementing bond, densely filledall the space and pores between the grains of mineral phases, as a result of which it is very difficult to open theore phases even with fine grinding (<0.2 mm) of sandstones. In addition, siderite has magnetic properties.Therefore, its presence in the form of inclusions or growths on the surface of mineral phase grains affects theirmagnetic susceptibility and other physical properties. The combination of these factors complicates the application of physical methods for the enrichment of pseudorutile-leucoxene sandstones of the Pizhemskoyedeposit
- Добавил в систему: Макеев Александр Борисович
Прикрепленные файлы
| № | Имя | Описание | Имя файла | Размер | Добавлен |
|---|---|---|---|---|---|
| 1. | Полный текст | 2021-5_Metallyi_Sadyihov_Makeev.pdf | 10,5 МБ | 4 ноября 2021 [abmakeev] | |
| 2. | Полный текст | 2021-9_Metally_RMT1143.pdf | 3,2 МБ | 4 октября 2021 [abmakeev] |