Тип публикации: статья из журнала

Год издания: 2016

Идентификатор DOI: 10.1134/S1028334X16080067

Ключевые слова: Magnetic properties, Magnetite, Sediments, Biogenic magnetite, Bottom sediments, Geochemical characteristic, Local minimums, Magnetite particles, Magnetotactic Bacteria, Single domains, Ssbauer spectroscopies, Lakes

Аннотация: Magnetic properties were studied in bottom sediments of saline meromictic Shira Lake by the methods of static magnetometry and resonance Mossbauer spectroscopy for the first time. All layers of bottom sediments contain nanosized single-domain magnetite particles produced by magnetotactic bacteria. The concentration of magnetite in Показать полностьюbottom sediments decreased with depth, reaching a local minimum in the layer corresponding to the minimal level of the lake observed in 1910-1930. It is demonstrated that biogenic magnetite may indicate climate-related changes in the level of Shira Lake, in addition to the other biological and geochemical characteristics.

Журнал: DOKLADY EARTH SCIENCES

Выпуск журнала: Vol. 469, Is. 2

Номера страниц: 819-823

ISSN журнала: 1028334X

Место издания: NEW YORK

Издатель: MAIK NAUKA/INTERPERIODICA/SPRINGER

• Rogozin D.Y. (Siberian Federal University)
• Balaev D.A. (Kirenskii Institute of Physics,Siberian Branch,Russian Academy of Sciences)
• Semenov S.V. (Kirenskii Institute of Physics,Siberian Branch,Russian Academy of Sciences)
• Shaikhutdinov K.A. (Kirenskii Institute of Physics,Siberian Branch,Russian Academy of Sciences)
• Bayukov O.A. (Kirenskii Institute of Physics,Siberian Branch,Russian Academy of Sciences)

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