Burial and origin of permafrost derived carbon in the nearshore zone of the southern Canadian Beaufort Sea
Fuente:
PANGAEA
Guardado en:
| Autores principales: | , , , , , , , , , |
|---|---|
| Formato: | Dataset Open Access |
| Lenguaje: | en |
| Publicado: |
PANGAEA
2019
|
| Materias: | |
| Acceso en línea: | |
| Etiquetas: |
Agregar Etiqueta
Sin Etiquetas, Sea el primero en etiquetar este registro!
|
| _version_ | 1867167677528670208 |
|---|---|
| author | Grotheer, Hendrik Meyer, Vera D Riedel, Torsten Pfalz, Gregor Mathieu, Laura Hefter, Jens Gentz, Torben Lantuit, Hugues Mollenhauer, Gesine Fritz, Michael |
| author_facet | Grotheer, Hendrik Meyer, Vera D Riedel, Torsten Pfalz, Gregor Mathieu, Laura Hefter, Jens Gentz, Torben Lantuit, Hugues Mollenhauer, Gesine Fritz, Michael |
| collection | Datos científicos de ciencias marinas y ambientales |
| contents | Detailed organic geochemical and carbon isotopic (d13C and D14C) 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 36 % 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 | Dataset Open Access |
| id | pangaea_https___doi_org_10_1594_PANGAEA_910013 |
| institution | PANGAEA |
| language | en |
| publishDate | 2019 |
| publisher | PANGAEA |
| record_format | pangaea |
| spellingShingle | Burial and origin of permafrost derived carbon in the nearshore zone of the southern Canadian Beaufort Sea Grotheer, Hendrik Meyer, Vera D Riedel, Torsten Pfalz, Gregor Mathieu, Laura Hefter, Jens Gentz, Torben Lantuit, Hugues Mollenhauer, Gesine Fritz, Michael Arctic; AWI_Envi; AWI_PerDyn; Carbon cycling; coastal erosion; Permafrost; Permafrost Research (Periglacial Dynamics) @ AWI; Polar Terrestrial Environmental Systems @ AWI Detailed organic geochemical and carbon isotopic (d13C and D14C) 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 36 % 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. |
| title | Burial and origin of permafrost derived carbon in the nearshore zone of the southern Canadian Beaufort Sea |
| topic | Arctic; AWI_Envi; AWI_PerDyn; Carbon cycling; coastal erosion; Permafrost; Permafrost Research (Periglacial Dynamics) @ AWI; Polar Terrestrial Environmental Systems @ AWI |
| url | https://doi.org/10.1594/PANGAEA.910013 |