Thorium isotopes in the water column in Amundsen Basin during POLARSTERN cruises PS70 (ARK-XXII/2) in 2007 and PS94 (ARK-XXIX/3) in 2015
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| Auteurs principaux: | , , , , , , , , , , , , |
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| Format: | Dataset Open Access |
| Langue: | en |
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PANGAEA
2019
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| _version_ | 1867171373900627968 |
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| author | Valk, Ole Rutgers van der Loeff, Michiel M Geibert, Walter Gdaniec, Sandra Moran, S Bradley Lepore, Kate Edwards, R Lawrence Lu, Y Puigcorbé, Viena Casacuberta, Nuria Paffrath, Ronja Smethie, William Roy-Barman, Matthieu |
| author_facet | Valk, Ole Rutgers van der Loeff, Michiel M Geibert, Walter Gdaniec, Sandra Moran, S Bradley Lepore, Kate Edwards, R Lawrence Lu, Y Puigcorbé, Viena Casacuberta, Nuria Paffrath, Ronja Smethie, William Roy-Barman, Matthieu |
| collection | Datos científicos de ciencias marinas y ambientales |
| contents | In this study we present dissolved ²³⁰Th and ²³²Th results, as well as amount of particulate ²³⁴Th from total ²³⁴Th. The data, obtained as part of the GEOTRACES central Arctic Ocean sections GN04 (2015) and IPY11 (2007). Samples were analyzed following GEOTRACES methods, and compared to previous results from 1991. We observe significant decreases in ²³⁰Th concentrations in the intermediate waters of the Amundsen Basin. This removal was explained by scavenging removal of dissolved ²³⁰Th on the Barents Sea Shelf and along Atlantic water inflow pathways. This finding shows that a far-field decrease of dissolved ²³⁰Th can be caused by changes in scavenging on inflow passages and highlights the importance of repeated GEOTRACES sections. |
| format | Dataset Open Access |
| id | pangaea_https___doi_org_10_1594_PANGAEA_908068 |
| institution | PANGAEA |
| language | en |
| publishDate | 2019 |
| publisher | PANGAEA |
| record_format | pangaea |
| spellingShingle | Thorium isotopes in the water column in Amundsen Basin during POLARSTERN cruises PS70 (ARK-XXII/2) in 2007 and PS94 (ARK-XXIX/3) in 2015 Valk, Ole Rutgers van der Loeff, Michiel M Geibert, Walter Gdaniec, Sandra Moran, S Bradley Lepore, Kate Edwards, R Lawrence Lu, Y Puigcorbé, Viena Casacuberta, Nuria Paffrath, Ronja Smethie, William Roy-Barman, Matthieu 230Th; Arctic Ocean; AWI_MarGeoChem; GEOTRACES; Global marine biogeochemical cycles of trace elements and their isotopes; Marine Geochemistry @ AWI; Time series In this study we present dissolved ²³⁰Th and ²³²Th results, as well as amount of particulate ²³⁴Th from total ²³⁴Th. The data, obtained as part of the GEOTRACES central Arctic Ocean sections GN04 (2015) and IPY11 (2007). Samples were analyzed following GEOTRACES methods, and compared to previous results from 1991. We observe significant decreases in ²³⁰Th concentrations in the intermediate waters of the Amundsen Basin. This removal was explained by scavenging removal of dissolved ²³⁰Th on the Barents Sea Shelf and along Atlantic water inflow pathways. This finding shows that a far-field decrease of dissolved ²³⁰Th can be caused by changes in scavenging on inflow passages and highlights the importance of repeated GEOTRACES sections. |
| title | Thorium isotopes in the water column in Amundsen Basin during POLARSTERN cruises PS70 (ARK-XXII/2) in 2007 and PS94 (ARK-XXIX/3) in 2015 |
| topic | 230Th; Arctic Ocean; AWI_MarGeoChem; GEOTRACES; Global marine biogeochemical cycles of trace elements and their isotopes; Marine Geochemistry @ AWI; Time series |
| url | https://doi.org/10.1594/PANGAEA.908068 |