Burial and Origin of Permafrost-Derived Carbon in the Nearshore Zone of the Southern Canadian Beaufort Sea
Detailed organic geochemical and carbon isotopic (δ13C and Δ14C) analyses are performed on permafrost deposits affected by coastal erosion (Herschel Island, Canadian Beaufort Sea) and adjacent marine sediments (Herschel Basin) to understand the fate of organic carbon in Arctic nearshore environments...
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ftdatacite:10.23689/fidgeo-5138 2023-05-15T15:02:30+02:00 Burial and Origin of Permafrost-Derived Carbon in the Nearshore Zone of the Southern Canadian Beaufort Sea Grotheer, H. Meyer, V. Riedel, T. Pfalz, G. Mathieu, L. Hefter, J. Gentz, T. Lantuit, H. Mollenhauer, G. Fritz, M. 2020 https://dx.doi.org/10.23689/fidgeo-5138 https://e-docs.geo-leo.de/handle/11858/9484 en eng FID GEO Text Article article-journal ScholarlyArticle 2020 ftdatacite https://doi.org/10.23689/fidgeo-5138 2021-11-05T12:55:41Z Detailed organic geochemical and carbon isotopic (δ13C and Δ14C) analyses are performed on permafrost deposits affected by coastal erosion (Herschel Island, Canadian Beaufort Sea) and adjacent marine sediments (Herschel Basin) to understand the fate of organic carbon in Arctic nearshore environments. We use an end-member model based on the carbon isotopic composition of bulk organic matter to identify sources of organic carbon. Monte Carlo simulations are applied to quantify the contribution of coastal permafrost erosion to the sedimentary carbon budget. The models suggest that ~40% of all carbon released by local coastal permafrost erosion is efficiently trapped and sequestered in the nearshore zone. This highlights the importance of sedimentary traps in environments such as basins, lagoons, troughs, and canyons for the carbon sequestration in previously poorly investigated, nearshore areas. Text Arctic Beaufort Sea Herschel Island permafrost DataCite Metadata Store (German National Library of Science and Technology) Arctic Herschel Island ENVELOPE(-139.089,-139.089,69.583,69.583) |
institution |
Open Polar |
collection |
DataCite Metadata Store (German National Library of Science and Technology) |
op_collection_id |
ftdatacite |
language |
English |
description |
Detailed organic geochemical and carbon isotopic (δ13C and Δ14C) analyses are performed on permafrost deposits affected by coastal erosion (Herschel Island, Canadian Beaufort Sea) and adjacent marine sediments (Herschel Basin) to understand the fate of organic carbon in Arctic nearshore environments. We use an end-member model based on the carbon isotopic composition of bulk organic matter to identify sources of organic carbon. Monte Carlo simulations are applied to quantify the contribution of coastal permafrost erosion to the sedimentary carbon budget. The models suggest that ~40% of all carbon released by local coastal permafrost erosion is efficiently trapped and sequestered in the nearshore zone. This highlights the importance of sedimentary traps in environments such as basins, lagoons, troughs, and canyons for the carbon sequestration in previously poorly investigated, nearshore areas. |
format |
Text |
author |
Grotheer, H. Meyer, V. Riedel, T. Pfalz, G. Mathieu, L. Hefter, J. Gentz, T. Lantuit, H. Mollenhauer, G. Fritz, M. |
spellingShingle |
Grotheer, H. Meyer, V. Riedel, T. Pfalz, G. Mathieu, L. Hefter, J. Gentz, T. Lantuit, H. Mollenhauer, G. Fritz, M. Burial and Origin of Permafrost-Derived Carbon in the Nearshore Zone of the Southern Canadian Beaufort Sea |
author_facet |
Grotheer, H. Meyer, V. Riedel, T. Pfalz, G. Mathieu, L. Hefter, J. Gentz, T. Lantuit, H. Mollenhauer, G. Fritz, M. |
author_sort |
Grotheer, H. |
title |
Burial and Origin of Permafrost-Derived Carbon in the Nearshore Zone of the Southern Canadian Beaufort Sea |
title_short |
Burial and Origin of Permafrost-Derived Carbon in the Nearshore Zone of the Southern Canadian Beaufort Sea |
title_full |
Burial and Origin of Permafrost-Derived Carbon in the Nearshore Zone of the Southern Canadian Beaufort Sea |
title_fullStr |
Burial and Origin of Permafrost-Derived Carbon in the Nearshore Zone of the Southern Canadian Beaufort Sea |
title_full_unstemmed |
Burial and Origin of Permafrost-Derived Carbon in the Nearshore Zone of the Southern Canadian Beaufort Sea |
title_sort |
burial and origin of permafrost-derived carbon in the nearshore zone of the southern canadian beaufort sea |
publisher |
FID GEO |
publishDate |
2020 |
url |
https://dx.doi.org/10.23689/fidgeo-5138 https://e-docs.geo-leo.de/handle/11858/9484 |
long_lat |
ENVELOPE(-139.089,-139.089,69.583,69.583) |
geographic |
Arctic Herschel Island |
geographic_facet |
Arctic Herschel Island |
genre |
Arctic Beaufort Sea Herschel Island permafrost |
genre_facet |
Arctic Beaufort Sea Herschel Island permafrost |
op_doi |
https://doi.org/10.23689/fidgeo-5138 |
_version_ |
1766334454255583232 |