Аннотация
The results of studying the structure and mineral composition of the Upper Holocene bottom sediments of Lake Onega are presented. It is established that there are two types of columns of bottom sediments, for which stratification of layers and formation of Fe–Mn crusts are determined by the diagenesis processes occurring under physicochemical conditions of sediment accumulation according to two scenarios. The distribution spectra of rare-earth elements (REEs) are different in the indicated types of columns, which is apparently attributed to the differences in the oxidation–reduction conditions at the water–sediment interface during the formation of REEs and possibly to the influence of hydrothermal processes.
Язык оригинала | английский |
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Страницы (с-по) | 988-992 |
Число страниц | 5 |
Журнал | Doklady Earth Sciences |
Том | 481 |
Номер выпуска | 2 |
DOI | |
Состояние | Опубликовано - 1 авг 2018 |
Опубликовано для внешнего пользования | Да |