Radioecological and geochemical peculiarities of cryoconite on Novaya Zemlya glaciers
Abstract In recent years, cryoconite has received growing attention from a radioecological point of view, since several studies have shown that this material is extremely efficient in accumulating natural and anthropogenic radionuclides. The Novaya Zemlya Archipelago (Russian Arctic) hosts the secon...
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crspringernat:10.1038/s41598-021-02601-8 2023-05-15T14:54:21+02:00 Radioecological and geochemical peculiarities of cryoconite on Novaya Zemlya glaciers Miroshnikov, Alexey Flint, Mikhail Asadulin, Enver Aliev, Ramiz Shiryaev, Andrei Kudikov, Arsenii Khvostikov, Vladimir Российский фонд фундаментальных исследований Российский научный фонд , Россия 2021 http://dx.doi.org/10.1038/s41598-021-02601-8 https://www.nature.com/articles/s41598-021-02601-8.pdf https://www.nature.com/articles/s41598-021-02601-8 en eng Springer Science and Business Media LLC https://creativecommons.org/licenses/by/4.0 https://creativecommons.org/licenses/by/4.0 CC-BY Scientific Reports volume 11, issue 1 ISSN 2045-2322 Multidisciplinary journal-article 2021 crspringernat https://doi.org/10.1038/s41598-021-02601-8 2022-01-04T12:59:15Z Abstract In recent years, cryoconite has received growing attention from a radioecological point of view, since several studies have shown that this material is extremely efficient in accumulating natural and anthropogenic radionuclides. The Novaya Zemlya Archipelago (Russian Arctic) hosts the second largest glacial system in the Arctic. From 1957 to 1962, numerous atmospheric nuclear explosions were conducted at Novaya Zemlya, but to date, very little is known about the radioecology of its ice cap. Analysis of radionuclides and other chemical elements in cryoconite holes on Nalli Glacier reveals the presence of two main zones at different altitudes that present different radiological features. The first zone is 130–210 m above sea level (a.s.l.), has low radioactivity, high concentrations of lithophile elements and a chalcophile content close to that of upper continental crust clarkes. The second zone (220–370 m a.s.l.) is characterized by high activity levels of radionuclides and “inversion” of geochemical behaviour with lower concentrations of lithophiles and higher chalcophiles. In the upper part of this zone (350–370 m a.s.l.), 137 Cs activity reaches the record levels for Arctic cryoconite (5700–8100 Bq/kg). High levels of Sn, Sb, Bi and Ag, significantly exceeding those of upper continental crust clarkes, also appear here. We suggest that a buried layer of contaminated ice that formed during atmospheric nuclear tests serves as a local secondary source of radionuclide contamination. Its melting is responsible for the formation of this zone. Article in Journal/Newspaper Arctic Ice cap Novaya Zemlya Springer Nature (via Crossref) Arctic Scientific Reports 11 1 |
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Springer Nature (via Crossref) |
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English |
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Multidisciplinary Miroshnikov, Alexey Flint, Mikhail Asadulin, Enver Aliev, Ramiz Shiryaev, Andrei Kudikov, Arsenii Khvostikov, Vladimir Radioecological and geochemical peculiarities of cryoconite on Novaya Zemlya glaciers |
topic_facet |
Multidisciplinary |
description |
Abstract In recent years, cryoconite has received growing attention from a radioecological point of view, since several studies have shown that this material is extremely efficient in accumulating natural and anthropogenic radionuclides. The Novaya Zemlya Archipelago (Russian Arctic) hosts the second largest glacial system in the Arctic. From 1957 to 1962, numerous atmospheric nuclear explosions were conducted at Novaya Zemlya, but to date, very little is known about the radioecology of its ice cap. Analysis of radionuclides and other chemical elements in cryoconite holes on Nalli Glacier reveals the presence of two main zones at different altitudes that present different radiological features. The first zone is 130–210 m above sea level (a.s.l.), has low radioactivity, high concentrations of lithophile elements and a chalcophile content close to that of upper continental crust clarkes. The second zone (220–370 m a.s.l.) is characterized by high activity levels of radionuclides and “inversion” of geochemical behaviour with lower concentrations of lithophiles and higher chalcophiles. In the upper part of this zone (350–370 m a.s.l.), 137 Cs activity reaches the record levels for Arctic cryoconite (5700–8100 Bq/kg). High levels of Sn, Sb, Bi and Ag, significantly exceeding those of upper continental crust clarkes, also appear here. We suggest that a buried layer of contaminated ice that formed during atmospheric nuclear tests serves as a local secondary source of radionuclide contamination. Its melting is responsible for the formation of this zone. |
author2 |
Российский фонд фундаментальных исследований Российский научный фонд , Россия |
format |
Article in Journal/Newspaper |
author |
Miroshnikov, Alexey Flint, Mikhail Asadulin, Enver Aliev, Ramiz Shiryaev, Andrei Kudikov, Arsenii Khvostikov, Vladimir |
author_facet |
Miroshnikov, Alexey Flint, Mikhail Asadulin, Enver Aliev, Ramiz Shiryaev, Andrei Kudikov, Arsenii Khvostikov, Vladimir |
author_sort |
Miroshnikov, Alexey |
title |
Radioecological and geochemical peculiarities of cryoconite on Novaya Zemlya glaciers |
title_short |
Radioecological and geochemical peculiarities of cryoconite on Novaya Zemlya glaciers |
title_full |
Radioecological and geochemical peculiarities of cryoconite on Novaya Zemlya glaciers |
title_fullStr |
Radioecological and geochemical peculiarities of cryoconite on Novaya Zemlya glaciers |
title_full_unstemmed |
Radioecological and geochemical peculiarities of cryoconite on Novaya Zemlya glaciers |
title_sort |
radioecological and geochemical peculiarities of cryoconite on novaya zemlya glaciers |
publisher |
Springer Science and Business Media LLC |
publishDate |
2021 |
url |
http://dx.doi.org/10.1038/s41598-021-02601-8 https://www.nature.com/articles/s41598-021-02601-8.pdf https://www.nature.com/articles/s41598-021-02601-8 |
geographic |
Arctic |
geographic_facet |
Arctic |
genre |
Arctic Ice cap Novaya Zemlya |
genre_facet |
Arctic Ice cap Novaya Zemlya |
op_source |
Scientific Reports volume 11, issue 1 ISSN 2045-2322 |
op_rights |
https://creativecommons.org/licenses/by/4.0 https://creativecommons.org/licenses/by/4.0 |
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CC-BY |
op_doi |
https://doi.org/10.1038/s41598-021-02601-8 |
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Scientific Reports |
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