Mineral Element Stocks in the Yedoma Domain: A Novel Method Applied to Ice-Rich Permafrost Regions
With permafrost thaw, significant amounts of organic carbon (OC) previously stored in frozen deposits are unlocked and become potentially available for microbial mineralization. This is particularly the case in ice-rich regions such as the Yedoma domain. Excess ground ice degradation exposes deep se...
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Online Access: | http://dx.doi.org/10.3389/feart.2021.703304 https://www.frontiersin.org/articles/10.3389/feart.2021.703304/full |
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crfrontiers:10.3389/feart.2021.703304 2024-03-03T08:45:16+00:00 Mineral Element Stocks in the Yedoma Domain: A Novel Method Applied to Ice-Rich Permafrost Regions Monhonval, Arthur Mauclet, Elisabeth Pereira, Benoît Vandeuren, Aubry Strauss, Jens Grosse, Guido Schirrmeister, Lutz Fuchs, Matthias Kuhry, Peter Opfergelt, Sophie Horizon 2020 2021 http://dx.doi.org/10.3389/feart.2021.703304 https://www.frontiersin.org/articles/10.3389/feart.2021.703304/full unknown Frontiers Media SA https://creativecommons.org/licenses/by/4.0/ Frontiers in Earth Science volume 9 ISSN 2296-6463 General Earth and Planetary Sciences journal-article 2021 crfrontiers https://doi.org/10.3389/feart.2021.703304 2024-02-03T23:18:10Z With permafrost thaw, significant amounts of organic carbon (OC) previously stored in frozen deposits are unlocked and become potentially available for microbial mineralization. This is particularly the case in ice-rich regions such as the Yedoma domain. Excess ground ice degradation exposes deep sediments and their OC stocks, but also mineral elements, to biogeochemical processes. Interactions of mineral elements and OC play a crucial role for OC stabilization and the fate of OC upon thaw, and thus regulate carbon dioxide and methane emissions. In addition, some mineral elements are limiting nutrients for plant growth or microbial metabolic activity. A large ongoing effort is to quantify OC stocks and their lability in permafrost regions, but the influence of mineral elements on the fate of OC or on biogeochemical nutrient cycles has received less attention and there is an overall lack of mineral element content analyses for permafrost sediments. Here, we combine portable X-ray fluorescence (pXRF) with a bootstrapping technique to provide i) the first large-scale Yedoma domain Mineral Concentrations Assessment (YMCA) dataset, and ii) estimates of mineral element stocks in never thawed (since deposition) ice-rich Yedoma permafrost and previously thawed and partly refrozen Alas deposits. The pXRF method for mineral element quantification is non-destructive and offers a complement to the classical dissolution and measurement by optical emission spectrometry (ICP-OES) in solution. Using this method, mineral element concentrations (Si, Al, Fe, Ca, K, Ti, Mn, Zn, Sr and Zr) were assessed on 1,292 sediment samples from the Yedoma domain with lower analytical effort and lower costs relative to the ICP-OES method. The pXRF measured concentrations were calibrated using alkaline fusion and ICP-OES measurements on a subset of 144 samples ( R 2 from 0.725 to 0.996). The results highlight that i) the mineral element stock in sediments of the Yedoma domain (1,387,000 km 2 ) is higher for Si, followed by Al, Fe, K, Ca, Ti, Mn, ... Article in Journal/Newspaper Ice permafrost Frontiers (Publisher) Frontiers in Earth Science 9 |
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Open Polar |
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Frontiers (Publisher) |
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crfrontiers |
language |
unknown |
topic |
General Earth and Planetary Sciences |
spellingShingle |
General Earth and Planetary Sciences Monhonval, Arthur Mauclet, Elisabeth Pereira, Benoît Vandeuren, Aubry Strauss, Jens Grosse, Guido Schirrmeister, Lutz Fuchs, Matthias Kuhry, Peter Opfergelt, Sophie Mineral Element Stocks in the Yedoma Domain: A Novel Method Applied to Ice-Rich Permafrost Regions |
topic_facet |
General Earth and Planetary Sciences |
description |
With permafrost thaw, significant amounts of organic carbon (OC) previously stored in frozen deposits are unlocked and become potentially available for microbial mineralization. This is particularly the case in ice-rich regions such as the Yedoma domain. Excess ground ice degradation exposes deep sediments and their OC stocks, but also mineral elements, to biogeochemical processes. Interactions of mineral elements and OC play a crucial role for OC stabilization and the fate of OC upon thaw, and thus regulate carbon dioxide and methane emissions. In addition, some mineral elements are limiting nutrients for plant growth or microbial metabolic activity. A large ongoing effort is to quantify OC stocks and their lability in permafrost regions, but the influence of mineral elements on the fate of OC or on biogeochemical nutrient cycles has received less attention and there is an overall lack of mineral element content analyses for permafrost sediments. Here, we combine portable X-ray fluorescence (pXRF) with a bootstrapping technique to provide i) the first large-scale Yedoma domain Mineral Concentrations Assessment (YMCA) dataset, and ii) estimates of mineral element stocks in never thawed (since deposition) ice-rich Yedoma permafrost and previously thawed and partly refrozen Alas deposits. The pXRF method for mineral element quantification is non-destructive and offers a complement to the classical dissolution and measurement by optical emission spectrometry (ICP-OES) in solution. Using this method, mineral element concentrations (Si, Al, Fe, Ca, K, Ti, Mn, Zn, Sr and Zr) were assessed on 1,292 sediment samples from the Yedoma domain with lower analytical effort and lower costs relative to the ICP-OES method. The pXRF measured concentrations were calibrated using alkaline fusion and ICP-OES measurements on a subset of 144 samples ( R 2 from 0.725 to 0.996). The results highlight that i) the mineral element stock in sediments of the Yedoma domain (1,387,000 km 2 ) is higher for Si, followed by Al, Fe, K, Ca, Ti, Mn, ... |
author2 |
Horizon 2020 |
format |
Article in Journal/Newspaper |
author |
Monhonval, Arthur Mauclet, Elisabeth Pereira, Benoît Vandeuren, Aubry Strauss, Jens Grosse, Guido Schirrmeister, Lutz Fuchs, Matthias Kuhry, Peter Opfergelt, Sophie |
author_facet |
Monhonval, Arthur Mauclet, Elisabeth Pereira, Benoît Vandeuren, Aubry Strauss, Jens Grosse, Guido Schirrmeister, Lutz Fuchs, Matthias Kuhry, Peter Opfergelt, Sophie |
author_sort |
Monhonval, Arthur |
title |
Mineral Element Stocks in the Yedoma Domain: A Novel Method Applied to Ice-Rich Permafrost Regions |
title_short |
Mineral Element Stocks in the Yedoma Domain: A Novel Method Applied to Ice-Rich Permafrost Regions |
title_full |
Mineral Element Stocks in the Yedoma Domain: A Novel Method Applied to Ice-Rich Permafrost Regions |
title_fullStr |
Mineral Element Stocks in the Yedoma Domain: A Novel Method Applied to Ice-Rich Permafrost Regions |
title_full_unstemmed |
Mineral Element Stocks in the Yedoma Domain: A Novel Method Applied to Ice-Rich Permafrost Regions |
title_sort |
mineral element stocks in the yedoma domain: a novel method applied to ice-rich permafrost regions |
publisher |
Frontiers Media SA |
publishDate |
2021 |
url |
http://dx.doi.org/10.3389/feart.2021.703304 https://www.frontiersin.org/articles/10.3389/feart.2021.703304/full |
genre |
Ice permafrost |
genre_facet |
Ice permafrost |
op_source |
Frontiers in Earth Science volume 9 ISSN 2296-6463 |
op_rights |
https://creativecommons.org/licenses/by/4.0/ |
op_doi |
https://doi.org/10.3389/feart.2021.703304 |
container_title |
Frontiers in Earth Science |
container_volume |
9 |
_version_ |
1792500807491387392 |