Pathways and timescales of Southern Ocean hydrothermal iron and manganese transport
Abstract Scarcity of iron and manganese limits the efficiency of the biological carbon pump over large areas of the Southern Ocean. The importance of hydrothermal vents as a source of these micronutrients to the euphotic zone of the Southern Ocean is debated. Here we present full depth profiles of d...
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ftdoajarticles:oai:doaj.org/article:fe64e351a2074de7a6906bcfd285e0a7 2024-09-15T17:48:14+00:00 Pathways and timescales of Southern Ocean hydrothermal iron and manganese transport Antony J. Birchill Chelsey A. Baker Neil J. Wyatt Katsiaryna Pabortsava Hugh J. Venables C. Mark Moore Isobel Turnbull Angela Milne Simon J. Ussher Sophy Oliver Adrian P. Martin 2024-08-01T00:00:00Z https://doi.org/10.1038/s43247-024-01564-8 https://doaj.org/article/fe64e351a2074de7a6906bcfd285e0a7 EN eng Nature Portfolio https://doi.org/10.1038/s43247-024-01564-8 https://doaj.org/toc/2662-4435 doi:10.1038/s43247-024-01564-8 2662-4435 https://doaj.org/article/fe64e351a2074de7a6906bcfd285e0a7 Communications Earth & Environment, Vol 5, Iss 1, Pp 1-10 (2024) Geology QE1-996.5 Environmental sciences GE1-350 article 2024 ftdoajarticles https://doi.org/10.1038/s43247-024-01564-8 2024-08-05T17:50:07Z Abstract Scarcity of iron and manganese limits the efficiency of the biological carbon pump over large areas of the Southern Ocean. The importance of hydrothermal vents as a source of these micronutrients to the euphotic zone of the Southern Ocean is debated. Here we present full depth profiles of dissolved and total dissolvable trace metals in the remote eastern Pacific sector of the Southern Ocean (55–60° S, 89.1° W), providing evidence of enrichment of iron and manganese at depths of 2000–4000 m. These enhanced micronutrient concentrations were co-located with 3He enrichment, an indicator of hydrothermal fluid originating from ocean ridges. Modelled water trajectories revealed the understudied South East Pacific Rise and the Pacific Antarctic Ridge as likely source regions. Additionally, the trajectories demonstrate pathways for these Southern Ocean hydrothermal ridge-derived trace metals to reach the Southern Ocean surface mixed layer within two decades, potentially supporting a regular supply of micronutrients to fuel Southern Ocean primary production. Article in Journal/Newspaper Antarc* Antarctic Southern Ocean Directory of Open Access Journals: DOAJ Articles Communications Earth & Environment 5 1 |
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Open Polar |
collection |
Directory of Open Access Journals: DOAJ Articles |
op_collection_id |
ftdoajarticles |
language |
English |
topic |
Geology QE1-996.5 Environmental sciences GE1-350 |
spellingShingle |
Geology QE1-996.5 Environmental sciences GE1-350 Antony J. Birchill Chelsey A. Baker Neil J. Wyatt Katsiaryna Pabortsava Hugh J. Venables C. Mark Moore Isobel Turnbull Angela Milne Simon J. Ussher Sophy Oliver Adrian P. Martin Pathways and timescales of Southern Ocean hydrothermal iron and manganese transport |
topic_facet |
Geology QE1-996.5 Environmental sciences GE1-350 |
description |
Abstract Scarcity of iron and manganese limits the efficiency of the biological carbon pump over large areas of the Southern Ocean. The importance of hydrothermal vents as a source of these micronutrients to the euphotic zone of the Southern Ocean is debated. Here we present full depth profiles of dissolved and total dissolvable trace metals in the remote eastern Pacific sector of the Southern Ocean (55–60° S, 89.1° W), providing evidence of enrichment of iron and manganese at depths of 2000–4000 m. These enhanced micronutrient concentrations were co-located with 3He enrichment, an indicator of hydrothermal fluid originating from ocean ridges. Modelled water trajectories revealed the understudied South East Pacific Rise and the Pacific Antarctic Ridge as likely source regions. Additionally, the trajectories demonstrate pathways for these Southern Ocean hydrothermal ridge-derived trace metals to reach the Southern Ocean surface mixed layer within two decades, potentially supporting a regular supply of micronutrients to fuel Southern Ocean primary production. |
format |
Article in Journal/Newspaper |
author |
Antony J. Birchill Chelsey A. Baker Neil J. Wyatt Katsiaryna Pabortsava Hugh J. Venables C. Mark Moore Isobel Turnbull Angela Milne Simon J. Ussher Sophy Oliver Adrian P. Martin |
author_facet |
Antony J. Birchill Chelsey A. Baker Neil J. Wyatt Katsiaryna Pabortsava Hugh J. Venables C. Mark Moore Isobel Turnbull Angela Milne Simon J. Ussher Sophy Oliver Adrian P. Martin |
author_sort |
Antony J. Birchill |
title |
Pathways and timescales of Southern Ocean hydrothermal iron and manganese transport |
title_short |
Pathways and timescales of Southern Ocean hydrothermal iron and manganese transport |
title_full |
Pathways and timescales of Southern Ocean hydrothermal iron and manganese transport |
title_fullStr |
Pathways and timescales of Southern Ocean hydrothermal iron and manganese transport |
title_full_unstemmed |
Pathways and timescales of Southern Ocean hydrothermal iron and manganese transport |
title_sort |
pathways and timescales of southern ocean hydrothermal iron and manganese transport |
publisher |
Nature Portfolio |
publishDate |
2024 |
url |
https://doi.org/10.1038/s43247-024-01564-8 https://doaj.org/article/fe64e351a2074de7a6906bcfd285e0a7 |
genre |
Antarc* Antarctic Southern Ocean |
genre_facet |
Antarc* Antarctic Southern Ocean |
op_source |
Communications Earth & Environment, Vol 5, Iss 1, Pp 1-10 (2024) |
op_relation |
https://doi.org/10.1038/s43247-024-01564-8 https://doaj.org/toc/2662-4435 doi:10.1038/s43247-024-01564-8 2662-4435 https://doaj.org/article/fe64e351a2074de7a6906bcfd285e0a7 |
op_doi |
https://doi.org/10.1038/s43247-024-01564-8 |
container_title |
Communications Earth & Environment |
container_volume |
5 |
container_issue |
1 |
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1810289397252227072 |