The Geochemistry of Porous Water of Bottom Sediments in the Northeastern Shell of the Barents Sea

Kazak, E.S.; Korzun, A.V.; Akhmanov, G.G.; Bakai, E.A.

Информация о цитировании статьи получена из Scopus
Статья опубликована в журнале из перечня ВАК
Статья опубликована в журнале из списка Web of Science и/или Scopus
Дата последнего поиска статьи во внешних источниках: 16 марта 2022 г.

Авторы: Kazak E.S., Korzun A.V., Akhmanov G.G., Bakai E.A.
Журнал: Moscow University Geology Bulletin
Том: 76
Год издания: 2021
Издательство: Allerton Press Inc.
Местоположение издательства: United States
Первая страница: 624
Последняя страница: 638
DOI: 10.3103/S0145875221060041
Аннотация: The paper presents the pore waters composition's experimental results in the northeastern part of the Barents Sea. The pore water contains Cl-, Na+, SO42- and Mg2+ as dominant components and is quite similar to the Barents Seawater composition. For the first time, we measured the cation exchange capacity of (13.98-35.50 meq/100 g) and the exchanging cations composition (Na+>Mg2+>Ca2+>K+) of bottom sediments. We find that most of the sampled pore water (near 90%) have marine nature, and only near 10% is slightly transformed with sulfate reduction processes due to the diagenesis. We measure that the rare earth elements (REE) content in pore water is up to 1.589 μg/L with their content in sediments up to 144.051 mg/kg, negative cerium and positive europium anomalies are observed both in the pore waters and in bottom sediments. We calculated using PHREEQC that pore water undersaturated to gypsum and halite and supersaturated to calcite and dolomite, which may precipitate in deposits during diagenesis.
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The Geochemistry of Porous Water of Bottom Sediments in the Northeastern Shell of the Barents Seaстатья

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