Radiation-Geochemical Characteristics of Cryoconite Sediments on the Witte Glacier (Novaya Zemlya Archipelago)

IF 1.3 4区 地球科学 Q4 OCEANOGRAPHY
A. Yu. Miroshnikov, En. E. Asadulin, A. V. Kudikov, R. A. Aliev, V. Yu. Fedulov, V. A. Khvostikov, M. V. Flint
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引用次数: 0

Abstract

The article presents the results of studying specific organomineral formations—cryoconite sediments—samples of which were taken on the surface of the Witte Glacier (Medvezhiy Bay, Novaya Zemlya) on cruise 76 of the R/V Akademik Mstislav Keldysh. The specific activities of 137Cs, 241Am, 207Bi, 210Pb, and 7Be were measured in 14 samples. Analysis of the materials suggests that cryoconite contains radioactive contamination deposited in the glacier in the period from September 1957 to December 1962 as a result of atmospheric nuclear explosions at the Sukhoy Nos test site, located 100 km from the glacier. Extremely high Bi, Ag, Sb, Mo, Pb, Sn contents and a strong correlation with anthropogenic radionuclides may indicate the technogenic emission of these elements during the destructive impact of nuclear explosions on bedrock, the metallogenic specialization of which corresponds to rich polymetallic mineralization.

Abstract Image

维特冰川(新泽姆利亚群岛)冰川沉积物的辐射地球化学特征
摘要 本文介绍了对特定有机矿层--冰晶石沉积物--的研究结果,这些样品是在 Akademik Mstislav Keldysh 号考察船第 76 次航行期间在维特冰川(新泽姆利亚梅德韦日湾)表面采集的。在 14 个样本中测量了 137Cs、241Am、207Bi、210Pb 和 7Be 的比活度。对这些材料的分析表明,冰晶石中含有 1957 年 9 月至 1962 年 12 月期间沉积在冰川中的放射性污染,这是位于冰川 100 公里处的苏霍伊诺斯试验场进行大气层核爆炸的结果。Bi、Ag、Sb、Mo、Pb、Sn 含量极高,而且与人为放射性核素密切相关,这可能表明这些元素是在核爆对基岩造成破坏性影响期间由技术原因释放出来的,而基岩的金属成矿专业化与丰富的多金属矿化相对应。
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来源期刊
Oceanology
Oceanology 地学-海洋学
CiteScore
2.00
自引率
20.00%
发文量
83
审稿时长
6-12 weeks
期刊介绍: Oceanology, founded in 1961, is the leading journal in all areas of the marine sciences. It publishes original papers in all fields of theoretical and experimental research in physical, chemical, biological, geological, and technical oceanology. The journal also offers reviews and information about conferences, symposia, cruises, and other events of interest to the oceanographic community.
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