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...
Published in: | Geophysical Research Letters |
---|---|
Main Authors: | , , , , , , , , , |
Format: | Article in Journal/Newspaper |
Language: | English |
Published: |
2020
|
Subjects: | |
Online Access: | https://doi.org/10.1029/2019GL085897 http://resolver.sub.uni-goettingen.de/purl?gldocs-11858/9484 |
id |
ftsubggeo:oai:e-docs.geo-leo.de:11858/9484 |
---|---|
record_format |
openpolar |
spelling |
ftsubggeo:oai:e-docs.geo-leo.de:11858/9484 2023-05-15T15:02:59+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://doi.org/10.1029/2019GL085897 http://resolver.sub.uni-goettingen.de/purl?gldocs-11858/9484 eng eng doi:10.1029/2019GL085897 http://resolver.sub.uni-goettingen.de/purl?gldocs-11858/9484 This is an open access article under the terms of the Creative Commons Attribution License, which permits use, distribution and reproduction in any medium, provided the original work is properly cited. CC-BY ddc:551 permafrost coastal erosion biomarker radiocarbon carbon flux carbon burial doc-type:article 2020 ftsubggeo https://doi.org/10.1029/2019GL085897 2022-11-09T06:51:40Z 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. Article in Journal/Newspaper Arctic Beaufort Sea Herschel Island permafrost GEO-LEOe-docs (FID GEO) Arctic Herschel Island ENVELOPE(-139.089,-139.089,69.583,69.583) Geophysical Research Letters 47 3 |
institution |
Open Polar |
collection |
GEO-LEOe-docs (FID GEO) |
op_collection_id |
ftsubggeo |
language |
English |
topic |
ddc:551 permafrost coastal erosion biomarker radiocarbon carbon flux carbon burial |
spellingShingle |
ddc:551 permafrost coastal erosion biomarker radiocarbon carbon flux carbon burial 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 |
topic_facet |
ddc:551 permafrost coastal erosion biomarker radiocarbon carbon flux carbon burial |
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 |
Article in Journal/Newspaper |
author |
Grotheer, H. Meyer, V. Riedel, T. Pfalz, G. Mathieu, L. Hefter, J. Gentz, T. Lantuit, H. Mollenhauer, G. Fritz, M. |
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 |
publishDate |
2020 |
url |
https://doi.org/10.1029/2019GL085897 http://resolver.sub.uni-goettingen.de/purl?gldocs-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_relation |
doi:10.1029/2019GL085897 http://resolver.sub.uni-goettingen.de/purl?gldocs-11858/9484 |
op_rights |
This is an open access article under the terms of the Creative Commons Attribution License, which permits use, distribution and reproduction in any medium, provided the original work is properly cited. |
op_rightsnorm |
CC-BY |
op_doi |
https://doi.org/10.1029/2019GL085897 |
container_title |
Geophysical Research Letters |
container_volume |
47 |
container_issue |
3 |
_version_ |
1766334905876217856 |