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Biofilms and Biominerals in the Lateritic Weathering Crust as Exemplified by the Central Bauxite Deposit (Siberian Platform, Russia)статья
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: 15 декабря 2021 г.
- Авторы: Boeva N., Bortnikov N., Slukin A., Shipilova E., Makarova M., Melnikov P.
- Журнал: Minerals
- Том: 11
- Номер: 11
- Год издания: 2021
- Первая страница: 1184
- DOI: 10.3390/min11111184
- Аннотация: The study of lateritic bauxite by electron microscopy revealed abundant products ofinteraction between organic matter and minerals. Abundant biomineral films of different genesis andcomposition were found, including Al, Fe, Al-Fe, Al-Si, Al-Fe-Si, sorbed rare and rare-earth elements(REE). The evolution of these films from amorphous to crystallized and the conversion into drusecrystals of gibbsite, hematite, kaolinite etc. was traced. New data were obtained on mineralizationof deposits of wood, roots, biofilms and bacteria in tropical conditions. Mono- and multilayer filmswere identified. Different composition biofilms occurred before and after seasonal monsoon rains.The mineral composition of the films is influenced by micro-local conditions and the introductionof chemical elements, including rare and rare-earth elements, with capillary water during the dryseasons. The products of biomineralization are microscopic in size, but are of universal and globalimportance to all weathered rocks and associated bauxite deposits.
- Добавил в систему: Макарова Марина Александровна