Pingo drilling reveals sodium–chloride‐dominated massive ice in Grøndalen, Spitsbergen
Abstract Drilling of a 21.8‐m‐deep borehole on top of the 10.5‐m‐high Nori pingo that stands at 32 m asl in Grøndalen Valley (Spitsbergen) revealed a 16.1‐m‐thick massive ice enclosed by frozen sediments. The hydrochemical compositions of both the massive ice and the sediment extract show a prevalen...
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Online Access: | http://dx.doi.org/10.1002/ppp.2124 https://onlinelibrary.wiley.com/doi/pdf/10.1002/ppp.2124 https://onlinelibrary.wiley.com/doi/full-xml/10.1002/ppp.2124 |
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crwiley:10.1002/ppp.2124 2024-09-15T18:20:27+00:00 Pingo drilling reveals sodium–chloride‐dominated massive ice in Grøndalen, Spitsbergen Demidov, Vasiliy Wetterich, Sebastian Demidov, Nikita Schirrmeister, Lutz Verkulich, Sergey Koshurnikov, Andrey Gagarin, Vladimir Ekaykin, Aleksey Terekchov, Anton Veres, Arina Kozachek, Anna Deutsche Forschungsgemeinschaft Russian Science Foundation 2021 http://dx.doi.org/10.1002/ppp.2124 https://onlinelibrary.wiley.com/doi/pdf/10.1002/ppp.2124 https://onlinelibrary.wiley.com/doi/full-xml/10.1002/ppp.2124 en eng Wiley http://onlinelibrary.wiley.com/termsAndConditions#vor Permafrost and Periglacial Processes volume 32, issue 4, page 572-586 ISSN 1045-6740 1099-1530 journal-article 2021 crwiley https://doi.org/10.1002/ppp.2124 2024-09-03T04:23:38Z Abstract Drilling of a 21.8‐m‐deep borehole on top of the 10.5‐m‐high Nori pingo that stands at 32 m asl in Grøndalen Valley (Spitsbergen) revealed a 16.1‐m‐thick massive ice enclosed by frozen sediments. The hydrochemical compositions of both the massive ice and the sediment extract show a prevalence of Na + and Cl − ions throughout the core. The upper part of the massive ice (stage A) has low mineralization and shows an isotopically closed‐system trend in δ 18 O and δD isotopes decreasing down‐core. Stage B exhibits high mineralization and an isotopically semi‐open system. The crystallographic structure of Nori pingo’s massive ice provides evidence of several large groundwater intrusions that support the defined formation stages. Analysis of local aquifers leads to suggest that the pingo was hydraulically sourced through a local fault zone by low mineralized sodium–bicarbonate groundwater of a Paleogene strata aquifer. This groundwater was enriched by sodium and chloride ions while filtering through marine valley sediments with residual salinity. The comparison between the sodium–chloride‐dominated massive ice of the Nori pingo and the sodium–bicarbonate‐dominated ice of the adjacent Fili pingo that stands higher up the valley may serve as an indicator for groundwater source patterns of other Nordenskiöld Land pingos. Article in Journal/Newspaper Nordenskiöld Land Permafrost and Periglacial Processes Spitsbergen Wiley Online Library Permafrost and Periglacial Processes |
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Wiley Online Library |
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crwiley |
language |
English |
description |
Abstract Drilling of a 21.8‐m‐deep borehole on top of the 10.5‐m‐high Nori pingo that stands at 32 m asl in Grøndalen Valley (Spitsbergen) revealed a 16.1‐m‐thick massive ice enclosed by frozen sediments. The hydrochemical compositions of both the massive ice and the sediment extract show a prevalence of Na + and Cl − ions throughout the core. The upper part of the massive ice (stage A) has low mineralization and shows an isotopically closed‐system trend in δ 18 O and δD isotopes decreasing down‐core. Stage B exhibits high mineralization and an isotopically semi‐open system. The crystallographic structure of Nori pingo’s massive ice provides evidence of several large groundwater intrusions that support the defined formation stages. Analysis of local aquifers leads to suggest that the pingo was hydraulically sourced through a local fault zone by low mineralized sodium–bicarbonate groundwater of a Paleogene strata aquifer. This groundwater was enriched by sodium and chloride ions while filtering through marine valley sediments with residual salinity. The comparison between the sodium–chloride‐dominated massive ice of the Nori pingo and the sodium–bicarbonate‐dominated ice of the adjacent Fili pingo that stands higher up the valley may serve as an indicator for groundwater source patterns of other Nordenskiöld Land pingos. |
author2 |
Deutsche Forschungsgemeinschaft Russian Science Foundation |
format |
Article in Journal/Newspaper |
author |
Demidov, Vasiliy Wetterich, Sebastian Demidov, Nikita Schirrmeister, Lutz Verkulich, Sergey Koshurnikov, Andrey Gagarin, Vladimir Ekaykin, Aleksey Terekchov, Anton Veres, Arina Kozachek, Anna |
spellingShingle |
Demidov, Vasiliy Wetterich, Sebastian Demidov, Nikita Schirrmeister, Lutz Verkulich, Sergey Koshurnikov, Andrey Gagarin, Vladimir Ekaykin, Aleksey Terekchov, Anton Veres, Arina Kozachek, Anna Pingo drilling reveals sodium–chloride‐dominated massive ice in Grøndalen, Spitsbergen |
author_facet |
Demidov, Vasiliy Wetterich, Sebastian Demidov, Nikita Schirrmeister, Lutz Verkulich, Sergey Koshurnikov, Andrey Gagarin, Vladimir Ekaykin, Aleksey Terekchov, Anton Veres, Arina Kozachek, Anna |
author_sort |
Demidov, Vasiliy |
title |
Pingo drilling reveals sodium–chloride‐dominated massive ice in Grøndalen, Spitsbergen |
title_short |
Pingo drilling reveals sodium–chloride‐dominated massive ice in Grøndalen, Spitsbergen |
title_full |
Pingo drilling reveals sodium–chloride‐dominated massive ice in Grøndalen, Spitsbergen |
title_fullStr |
Pingo drilling reveals sodium–chloride‐dominated massive ice in Grøndalen, Spitsbergen |
title_full_unstemmed |
Pingo drilling reveals sodium–chloride‐dominated massive ice in Grøndalen, Spitsbergen |
title_sort |
pingo drilling reveals sodium–chloride‐dominated massive ice in grøndalen, spitsbergen |
publisher |
Wiley |
publishDate |
2021 |
url |
http://dx.doi.org/10.1002/ppp.2124 https://onlinelibrary.wiley.com/doi/pdf/10.1002/ppp.2124 https://onlinelibrary.wiley.com/doi/full-xml/10.1002/ppp.2124 |
genre |
Nordenskiöld Land Permafrost and Periglacial Processes Spitsbergen |
genre_facet |
Nordenskiöld Land Permafrost and Periglacial Processes Spitsbergen |
op_source |
Permafrost and Periglacial Processes volume 32, issue 4, page 572-586 ISSN 1045-6740 1099-1530 |
op_rights |
http://onlinelibrary.wiley.com/termsAndConditions#vor |
op_doi |
https://doi.org/10.1002/ppp.2124 |
container_title |
Permafrost and Periglacial Processes |
_version_ |
1810458838954934272 |