Abstract

Primary studies of the concentrations of rare elements in the sediments of two lakes on King George Island (Kitezh and Glubokoe) showed that their geochemistry reflects the geological features of the area. Compared to the composition of the upper part of the Earth’s crust, the studied sediments are enriched in Cu, Cd, V, Tl, Mn, Ti, and P. Similar patterns have been identified in the geochemistry of volcanic and sedimentary rocks of the Fildes Peninsula. Trends in REE changes generally follow their behavior in rocks, but the overall REE concentration in sediments of lakes is higher, which may be due to the presence of organic matter accumulating in sediments of water bodies. Unlike the aquatic environment, the chemical composition of sediments does not reflect the significant influence of the activities of polar stations. However, small increases in Pb and Sb concentrations in the upper sediments suggest the influence of long–range atmospheric transport of the contaminants.

中文翻译：

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南极洲乔治王岛湖泊沉积物核心中的微量元素

摘要

对乔治王岛两个湖泊（基捷日湖和格卢博科湖）沉积物中稀有元素浓度的初步研究表明，它们的地球化学反映了该地区的地质特征。与地壳上部的成分相比，所研究的沉积物富含铜、镉、钒、铊、锰、钛和磷。在菲尔德斯火山和沉积岩的地球化学中也发现了类似的模式半岛。稀土元素的变化趋势通常遵循其在岩石中的行为，但湖泊沉积物中的稀土元素总体浓度较高，这可能是由于水体沉积物中存在有机物积累所致。与水生环境不同，沉积物的化学成分并不反映极地站活动的显着影响。然而，上层沉积物中铅和锑浓度的小幅增加表明污染物的长距离大气迁移的影响。