Magnetic properties of bottom sediments from Meromectic Shira Lake (Siberia, Russia)

被引：0
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作者：
D. Yu. Rogozin
D. A. Balaev
S. V. Semenov
K. A. Shaikhutdinov
O. A. Bayukov
机构：
[1] Russian Academy of Sciences,Institute of Biophysics, Siberian Branch
[2] Siberian Federal University,Kirenskii Institute of Physics, Siberian Branch
[3] Russian Academy of Sciences,undefined
来源：
Doklady Earth Sciences | 2016年 / 469卷
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摘要：
Magnetic properties were studied in bottom sediments of saline meromictic Shira Lake by the methods of static magnetometry and resonance Mössbauer 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 bottom 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.
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页码：819 / 823
页数：4
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