Influence of Global Climate Changes in Past Centuries on the Chemical Composition of Bottom Sediments in the Chukchi Sea

被引：0
|
作者：
A. S. Astakhov
E. G. Vologina
A. V. Dar’in
I. A. Kalugin
V. V. Plotnikov
机构：
[1] Russian Academy of Sciences,Il’ichev Pacific Oceanological Institute, Far Eastern Branch
[2] Russian Academy of Sciences,Institute of the Earth’s Crust, Siberian Branch
[3] Russian Academy of Sciences,Sobolev Institute of Geology and Mineralogy, Siberian Branch
来源：
Russian Meteorology and Hydrology | 2018年 / 43卷
关键词：
Bottom sediments; chemical composition; bioproductivity; redox conditions; ice conditions; paleoclimatology; Chukchi Sea; Little Ice Age;
D O I：
暂无
中图分类号：
学科分类号：
摘要：
The sedimentary cores from the southern and northern parts of the Chukchi Sea illustrate the influence of climate and environmental conditions on the chemical composition of bottom sediments accumulated at present and in the recent 500 years. The low concentration of biogenic (Ca, Br, Sr) and some redox-sensitive (Fe, Mn, Zn) elements is typical of the recent sediments accumulated in the areas with permanent ice cover and of the sediments accumulated during cold periods (Little Ice Age and especially the Maunder Minimum). The possibility is revealed of identifying cyclic changes in environmental conditions including sea ice extent in the concrete Arctic areas. This may be used to detail the regional forecast of future changes.
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页码：251 / 257
页数：6
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