Enhanced trace element mobilization by Earth’s ice sheets
Trace elements are integral to biogeochemical processes at the Earth’s surface and play an important role in the carbon cycle as micronutrients to support biological productivity. We present data from the Greenland and Antarctic ice sheets to demonstrate the importance of subglacial biogeochemical p...
Published in: | Proceedings of the National Academy of Sciences |
---|---|
Main Authors: | , , , , , , , , , , , , , , , , |
Format: | Article in Journal/Newspaper |
Language: | English |
Published: |
2020
|
Subjects: | |
Online Access: | https://hdl.handle.net/1983/b0a1d1b3-6ff9-4c19-8c90-0abaacc55b01 https://research-information.bris.ac.uk/en/publications/b0a1d1b3-6ff9-4c19-8c90-0abaacc55b01 https://doi.org/10.1073/pnas.2014378117 |
id |
ftubristolcris:oai:research-information.bris.ac.uk:publications/b0a1d1b3-6ff9-4c19-8c90-0abaacc55b01 |
---|---|
record_format |
openpolar |
spelling |
ftubristolcris:oai:research-information.bris.ac.uk:publications/b0a1d1b3-6ff9-4c19-8c90-0abaacc55b01 2024-04-28T08:02:15+00:00 Enhanced trace element mobilization by Earth’s ice sheets Hawkings, Jon R. Skidmore, Mark Wadham, Jemma L. Priscu, John C. Morton, Peter L. Hatton, Jade Gardner, Christopher B. Kohler, Tyler J. Stibal, Marek Bagshaw, Elizabeth A. Steigmeyer, August Barker, Joel Dore, John Lyons, W. Berry Tranter, Martyn Spencer, Robert G. M. Team, the SALSA Science 2020-12-15 https://hdl.handle.net/1983/b0a1d1b3-6ff9-4c19-8c90-0abaacc55b01 https://research-information.bris.ac.uk/en/publications/b0a1d1b3-6ff9-4c19-8c90-0abaacc55b01 https://doi.org/10.1073/pnas.2014378117 eng eng https://research-information.bris.ac.uk/en/publications/b0a1d1b3-6ff9-4c19-8c90-0abaacc55b01 info:eu-repo/semantics/restrictedAccess Hawkings , J R , Skidmore , M , Wadham , J L , Priscu , J C , Morton , P L , Hatton , J , Gardner , C B , Kohler , T J , Stibal , M , Bagshaw , E A , Steigmeyer , A , Barker , J , Dore , J , Lyons , W B , Tranter , M , Spencer , R G M & Team , T SALSA S 2020 , ' Enhanced trace element mobilization by Earth’s ice sheets ' , Proceedings of the National Academy of Sciences . https://doi.org/10.1073/pnas.2014378117 article 2020 ftubristolcris https://doi.org/10.1073/pnas.2014378117 2024-04-10T00:17:48Z Trace elements are integral to biogeochemical processes at the Earth’s surface and play an important role in the carbon cycle as micronutrients to support biological productivity. We present data from the Greenland and Antarctic ice sheets to demonstrate the importance of subglacial biogeochemical processes in mobilizing substantial quantities of these elements. Usually immobile elements are found in subglacial meltwaters at elevated concentrations compared with typical rivers, with most exhibiting distinctive size fractionation due to adsorption onto nanoparticles. Our findings suggest that ice sheets need to be included in models of global biogeochemical cycles of trace elements and studies of the fertilization of adjacent marine systems, especially the Southern Ocean, due to large export fluxes of micronutrients, most notably iron. Article in Journal/Newspaper Antarc* Antarctic Greenland Southern Ocean University of Bristol: Bristol Research Proceedings of the National Academy of Sciences 117 50 31648 31659 |
institution |
Open Polar |
collection |
University of Bristol: Bristol Research |
op_collection_id |
ftubristolcris |
language |
English |
description |
Trace elements are integral to biogeochemical processes at the Earth’s surface and play an important role in the carbon cycle as micronutrients to support biological productivity. We present data from the Greenland and Antarctic ice sheets to demonstrate the importance of subglacial biogeochemical processes in mobilizing substantial quantities of these elements. Usually immobile elements are found in subglacial meltwaters at elevated concentrations compared with typical rivers, with most exhibiting distinctive size fractionation due to adsorption onto nanoparticles. Our findings suggest that ice sheets need to be included in models of global biogeochemical cycles of trace elements and studies of the fertilization of adjacent marine systems, especially the Southern Ocean, due to large export fluxes of micronutrients, most notably iron. |
format |
Article in Journal/Newspaper |
author |
Hawkings, Jon R. Skidmore, Mark Wadham, Jemma L. Priscu, John C. Morton, Peter L. Hatton, Jade Gardner, Christopher B. Kohler, Tyler J. Stibal, Marek Bagshaw, Elizabeth A. Steigmeyer, August Barker, Joel Dore, John Lyons, W. Berry Tranter, Martyn Spencer, Robert G. M. Team, the SALSA Science |
spellingShingle |
Hawkings, Jon R. Skidmore, Mark Wadham, Jemma L. Priscu, John C. Morton, Peter L. Hatton, Jade Gardner, Christopher B. Kohler, Tyler J. Stibal, Marek Bagshaw, Elizabeth A. Steigmeyer, August Barker, Joel Dore, John Lyons, W. Berry Tranter, Martyn Spencer, Robert G. M. Team, the SALSA Science Enhanced trace element mobilization by Earth’s ice sheets |
author_facet |
Hawkings, Jon R. Skidmore, Mark Wadham, Jemma L. Priscu, John C. Morton, Peter L. Hatton, Jade Gardner, Christopher B. Kohler, Tyler J. Stibal, Marek Bagshaw, Elizabeth A. Steigmeyer, August Barker, Joel Dore, John Lyons, W. Berry Tranter, Martyn Spencer, Robert G. M. Team, the SALSA Science |
author_sort |
Hawkings, Jon R. |
title |
Enhanced trace element mobilization by Earth’s ice sheets |
title_short |
Enhanced trace element mobilization by Earth’s ice sheets |
title_full |
Enhanced trace element mobilization by Earth’s ice sheets |
title_fullStr |
Enhanced trace element mobilization by Earth’s ice sheets |
title_full_unstemmed |
Enhanced trace element mobilization by Earth’s ice sheets |
title_sort |
enhanced trace element mobilization by earth’s ice sheets |
publishDate |
2020 |
url |
https://hdl.handle.net/1983/b0a1d1b3-6ff9-4c19-8c90-0abaacc55b01 https://research-information.bris.ac.uk/en/publications/b0a1d1b3-6ff9-4c19-8c90-0abaacc55b01 https://doi.org/10.1073/pnas.2014378117 |
genre |
Antarc* Antarctic Greenland Southern Ocean |
genre_facet |
Antarc* Antarctic Greenland Southern Ocean |
op_source |
Hawkings , J R , Skidmore , M , Wadham , J L , Priscu , J C , Morton , P L , Hatton , J , Gardner , C B , Kohler , T J , Stibal , M , Bagshaw , E A , Steigmeyer , A , Barker , J , Dore , J , Lyons , W B , Tranter , M , Spencer , R G M & Team , T SALSA S 2020 , ' Enhanced trace element mobilization by Earth’s ice sheets ' , Proceedings of the National Academy of Sciences . https://doi.org/10.1073/pnas.2014378117 |
op_relation |
https://research-information.bris.ac.uk/en/publications/b0a1d1b3-6ff9-4c19-8c90-0abaacc55b01 |
op_rights |
info:eu-repo/semantics/restrictedAccess |
op_doi |
https://doi.org/10.1073/pnas.2014378117 |
container_title |
Proceedings of the National Academy of Sciences |
container_volume |
117 |
container_issue |
50 |
container_start_page |
31648 |
op_container_end_page |
31659 |
_version_ |
1797573663133794304 |