Chemically and geographically distinct solid-phase iron pools in the Southern Ocean
Copyright: The Authors. Iron is a limiting nutrient in many parts of the oceans, including the unproductive regions of the Southern Ocean. Although the dominant fraction of the marine iron pool occurs in the form of solid-phase particles, its chemical speciation and mineralogy are challenging to cha...
Published in: | Science |
---|---|
Main Author: | |
Format: | Article in Journal/Newspaper |
Language: | English |
Published: |
The American Association for the Advancement of Science (AAAS)
2012
|
Subjects: | |
Online Access: | http://hdl.handle.net/10204/10136 https://doi.org/10.1126/science.1227504 http://science.sciencemag.org/content/338/6111/1199 http://science.sciencemag.org/content/338/6111/1199.full |
id |
ftcsir:oai:researchspace.csir.co.za:10204/10136 |
---|---|
record_format |
openpolar |
spelling |
ftcsir:oai:researchspace.csir.co.za:10204/10136 2023-05-15T13:35:51+02:00 Chemically and geographically distinct solid-phase iron pools in the Southern Ocean Mtshali, Thato N 2012-11 application/pdf http://hdl.handle.net/10204/10136 https://doi.org/10.1126/science.1227504 http://science.sciencemag.org/content/338/6111/1199 http://science.sciencemag.org/content/338/6111/1199.full en eng The American Association for the Advancement of Science (AAAS) Worklist;8646 Von der Heyden, B.P. et al. 2012. Chemically and geographically distinct solid-phase iron pools in the Southern Ocean. Science, vol. 338(6111): 1199-1201 0036-8075 1095-9203 doi:10.1126/science.1227504 http://science.sciencemag.org/content/338/6111/1199 http://science.sciencemag.org/content/338/6111/1199.full http://hdl.handle.net/10204/10136 Iron particles Phytoplankton growth Iron colloids Southern Ocean iron particles Iron pools Article 2012 ftcsir https://doi.org/10.1126/science.1227504 2022-05-19T06:13:18Z Copyright: The Authors. Iron is a limiting nutrient in many parts of the oceans, including the unproductive regions of the Southern Ocean. Although the dominant fraction of the marine iron pool occurs in the form of solid-phase particles, its chemical speciation and mineralogy are challenging to characterize on a regional scale. We describe a diverse array of iron particles, ranging from 20 to 700 nanometers in diameter, in the waters of the Southern Ocean euphotic zone. Distinct variations in the oxidation state and composition of these iron particles exist between the coasts of South Africa and Antarctica, with different iron pools occurring in different frontal zones. These speciation variations can result in solubility differences that may affect the production of bioavailable dissolved iron. Article in Journal/Newspaper Antarc* Antarctica Southern Ocean Council for Scientific and Industrial Research (South Africa): CSIR Research Space Southern Ocean Science 338 6111 1199 1201 |
institution |
Open Polar |
collection |
Council for Scientific and Industrial Research (South Africa): CSIR Research Space |
op_collection_id |
ftcsir |
language |
English |
topic |
Iron particles Phytoplankton growth Iron colloids Southern Ocean iron particles Iron pools |
spellingShingle |
Iron particles Phytoplankton growth Iron colloids Southern Ocean iron particles Iron pools Mtshali, Thato N Chemically and geographically distinct solid-phase iron pools in the Southern Ocean |
topic_facet |
Iron particles Phytoplankton growth Iron colloids Southern Ocean iron particles Iron pools |
description |
Copyright: The Authors. Iron is a limiting nutrient in many parts of the oceans, including the unproductive regions of the Southern Ocean. Although the dominant fraction of the marine iron pool occurs in the form of solid-phase particles, its chemical speciation and mineralogy are challenging to characterize on a regional scale. We describe a diverse array of iron particles, ranging from 20 to 700 nanometers in diameter, in the waters of the Southern Ocean euphotic zone. Distinct variations in the oxidation state and composition of these iron particles exist between the coasts of South Africa and Antarctica, with different iron pools occurring in different frontal zones. These speciation variations can result in solubility differences that may affect the production of bioavailable dissolved iron. |
format |
Article in Journal/Newspaper |
author |
Mtshali, Thato N |
author_facet |
Mtshali, Thato N |
author_sort |
Mtshali, Thato N |
title |
Chemically and geographically distinct solid-phase iron pools in the Southern Ocean |
title_short |
Chemically and geographically distinct solid-phase iron pools in the Southern Ocean |
title_full |
Chemically and geographically distinct solid-phase iron pools in the Southern Ocean |
title_fullStr |
Chemically and geographically distinct solid-phase iron pools in the Southern Ocean |
title_full_unstemmed |
Chemically and geographically distinct solid-phase iron pools in the Southern Ocean |
title_sort |
chemically and geographically distinct solid-phase iron pools in the southern ocean |
publisher |
The American Association for the Advancement of Science (AAAS) |
publishDate |
2012 |
url |
http://hdl.handle.net/10204/10136 https://doi.org/10.1126/science.1227504 http://science.sciencemag.org/content/338/6111/1199 http://science.sciencemag.org/content/338/6111/1199.full |
geographic |
Southern Ocean |
geographic_facet |
Southern Ocean |
genre |
Antarc* Antarctica Southern Ocean |
genre_facet |
Antarc* Antarctica Southern Ocean |
op_relation |
Worklist;8646 Von der Heyden, B.P. et al. 2012. Chemically and geographically distinct solid-phase iron pools in the Southern Ocean. Science, vol. 338(6111): 1199-1201 0036-8075 1095-9203 doi:10.1126/science.1227504 http://science.sciencemag.org/content/338/6111/1199 http://science.sciencemag.org/content/338/6111/1199.full http://hdl.handle.net/10204/10136 |
op_doi |
https://doi.org/10.1126/science.1227504 |
container_title |
Science |
container_volume |
338 |
container_issue |
6111 |
container_start_page |
1199 |
op_container_end_page |
1201 |
_version_ |
1766071237683970048 |