Tools
Tools
Pyle, Kimberley M., Hendry, Katharine R., Sherrell, Robert M., Legge, Oliver, Hind, Andrew J., Bakker, Dorothee C. E. 
ORCID: https://orcid.org/0000-0001-9234-5337, Venables, Hugh and Meredith, Michael P.
(2018)
Oceanic fronts control the distribution of dissolved barium in the Southern Ocean.
Marine Chemistry, 204.
pp. 95-106.
ISSN 0304-4203
Preview |
PDF (Accepted manuscript)
- Accepted Version
Available under License Creative Commons Attribution Non-commercial No Derivatives. Download (12MB) | Preview |
Abstract
The globally-observed relationship between oceanic barium and the macronutrient silicic acid results from the shared influence of large-scale ocean circulation and mixing on the two elements, and the inherent link between barium and organic matter formation and dissolution. A detailed examination of deviations from barium-silicon correlations can reveal variations in non-conservative processes within the marine barium cycle. Here, we present a high-resolution dataset of dissolved barium and macronutrients from the Drake Passage and the Scotia and Weddell Seas. Our new results highlight the influence of Southern Ocean frontal zones on barium cycling and the deviations of barium and macronutrient distributions as a result of spatial variations in phytoplankton assemblages and in barite formation processes. These new data also reinforce findings that water mass mixing and ocean circulation, in particular the location of oxygen minima, play a key role in barium distribution. Our findings have implications for the use of sedimentary barium as a proxy for export production, which may be complicated by physical water circulation changes or shifts in plankton community structure. Corrigendum: https://doi.org/10.1016/j.marchem.2018.09.004
| Item Type: | Article |
|---|---|
| Additional Information: | Corrigendum: https://doi.org/10.1016/j.marchem.2018.09.004 |
| Uncontrolled Keywords: | sdg 14 - life below water ,/dk/atira/pure/sustainabledevelopmentgoals/life_below_water |
| Faculty \ School: | Faculty of Science > School of Environmental Sciences Faculty of Science University of East Anglia Research Groups/Centres > Theme - ClimateUEA |
| UEA Research Groups: | Faculty of Science > Research Groups > Centre for Ocean and Atmospheric Sciences |
| Related URLs: | |
| Depositing User: | LivePure Connector |
| Date Deposited: | 06 Jul 2018 10:30 |
| Last Modified: | 09 Mar 2024 01:04 |
| URI: | https://ueaeprints.uea.ac.uk/id/eprint/67533 |
| DOI: | 10.1016/j.marchem.2018.07.002 |
Downloads
Downloads per month over past year
Actions (login required)
 |
View Item |