Importance of hydrothermal vents in scavenging removal of 230Th in the Nansen Basin
In this study we present dissolved and particulate 230Th and 232Th results, as well as particulate 234Th 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....
Published in: | Geophysical Research Letters |
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Online Access: | https://epic.awi.de/id/eprint/48073/ https://hdl.handle.net/10013/epic.10601e77-dddd-4329-8dc9-18406f9dc7f9 |
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ftawi:oai:epic.awi.de:48073 2024-09-15T17:53:32+00:00 Importance of hydrothermal vents in scavenging removal of 230Th in the Nansen Basin Valk, Ole Rutgers v. d. Loeff, Michiel Geibert, Walter Gdaniec, Sandra Rijkenberg, Micha J.A. Moran, S. Bradley Lepore, Kate Edwards, Robert Lu, Yanbin Puigcorbe Lacueva, Viena 2018-09-17 https://epic.awi.de/id/eprint/48073/ https://hdl.handle.net/10013/epic.10601e77-dddd-4329-8dc9-18406f9dc7f9 unknown Wiley Valk, O. , Rutgers v. d. Loeff, M. orcid:0000-0003-1393-3742 , Geibert, W. orcid:0000-0001-8646-2334 , Gdaniec, S. , Rijkenberg, M. J. , Moran, S. B. , Lepore, K. , Edwards, R. , Lu, Y. and Puigcorbe Lacueva, V. (2018) Importance of hydrothermal vents in scavenging removal of 230Th in the Nansen Basin , Geophysical Research Letters . doi:10.1029/2018GL079829 <https://doi.org/10.1029/2018GL079829> , hdl:10013/epic.10601e77-dddd-4329-8dc9-18406f9dc7f9 EPIC3Geophysical Research Letters, Wiley, ISSN: 0094-8276 Article isiRev 2018 ftawi https://doi.org/10.1029/2018GL079829 2024-06-24T04:21:00Z In this study we present dissolved and particulate 230Th and 232Th results, as well as particulate 234Th 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 deep waters of the Nansen Basin. We ascribe this non-steady state removal process to a variable release and scavenging of trace metals near an ultra-slow spreading ridge. This finding demonstrates that hydrothermal scavenging in the deep-sea may vary on annual time scales and highlights the importance of repeated GEOTRACES sections Article in Journal/Newspaper Arctic Ocean Nansen Basin Alfred Wegener Institute for Polar- and Marine Research (AWI): ePIC (electronic Publication Information Center) Geophysical Research Letters 45 19 10,539 10,548 |
institution |
Open Polar |
collection |
Alfred Wegener Institute for Polar- and Marine Research (AWI): ePIC (electronic Publication Information Center) |
op_collection_id |
ftawi |
language |
unknown |
description |
In this study we present dissolved and particulate 230Th and 232Th results, as well as particulate 234Th 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 deep waters of the Nansen Basin. We ascribe this non-steady state removal process to a variable release and scavenging of trace metals near an ultra-slow spreading ridge. This finding demonstrates that hydrothermal scavenging in the deep-sea may vary on annual time scales and highlights the importance of repeated GEOTRACES sections |
format |
Article in Journal/Newspaper |
author |
Valk, Ole Rutgers v. d. Loeff, Michiel Geibert, Walter Gdaniec, Sandra Rijkenberg, Micha J.A. Moran, S. Bradley Lepore, Kate Edwards, Robert Lu, Yanbin Puigcorbe Lacueva, Viena |
spellingShingle |
Valk, Ole Rutgers v. d. Loeff, Michiel Geibert, Walter Gdaniec, Sandra Rijkenberg, Micha J.A. Moran, S. Bradley Lepore, Kate Edwards, Robert Lu, Yanbin Puigcorbe Lacueva, Viena Importance of hydrothermal vents in scavenging removal of 230Th in the Nansen Basin |
author_facet |
Valk, Ole Rutgers v. d. Loeff, Michiel Geibert, Walter Gdaniec, Sandra Rijkenberg, Micha J.A. Moran, S. Bradley Lepore, Kate Edwards, Robert Lu, Yanbin Puigcorbe Lacueva, Viena |
author_sort |
Valk, Ole |
title |
Importance of hydrothermal vents in scavenging removal of 230Th in the Nansen Basin |
title_short |
Importance of hydrothermal vents in scavenging removal of 230Th in the Nansen Basin |
title_full |
Importance of hydrothermal vents in scavenging removal of 230Th in the Nansen Basin |
title_fullStr |
Importance of hydrothermal vents in scavenging removal of 230Th in the Nansen Basin |
title_full_unstemmed |
Importance of hydrothermal vents in scavenging removal of 230Th in the Nansen Basin |
title_sort |
importance of hydrothermal vents in scavenging removal of 230th in the nansen basin |
publisher |
Wiley |
publishDate |
2018 |
url |
https://epic.awi.de/id/eprint/48073/ https://hdl.handle.net/10013/epic.10601e77-dddd-4329-8dc9-18406f9dc7f9 |
genre |
Arctic Ocean Nansen Basin |
genre_facet |
Arctic Ocean Nansen Basin |
op_source |
EPIC3Geophysical Research Letters, Wiley, ISSN: 0094-8276 |
op_relation |
Valk, O. , Rutgers v. d. Loeff, M. orcid:0000-0003-1393-3742 , Geibert, W. orcid:0000-0001-8646-2334 , Gdaniec, S. , Rijkenberg, M. J. , Moran, S. B. , Lepore, K. , Edwards, R. , Lu, Y. and Puigcorbe Lacueva, V. (2018) Importance of hydrothermal vents in scavenging removal of 230Th in the Nansen Basin , Geophysical Research Letters . doi:10.1029/2018GL079829 <https://doi.org/10.1029/2018GL079829> , hdl:10013/epic.10601e77-dddd-4329-8dc9-18406f9dc7f9 |
op_doi |
https://doi.org/10.1029/2018GL079829 |
container_title |
Geophysical Research Letters |
container_volume |
45 |
container_issue |
19 |
container_start_page |
10,539 |
op_container_end_page |
10,548 |
_version_ |
1810429409334657024 |