Articles | Volume 20, issue 14
https://doi.org/10.5194/bg-20-3053-2023
https://doi.org/10.5194/bg-20-3053-2023
Research article
 | 
31 Jul 2023
Research article |  | 31 Jul 2023

Influence of manganese cycling on alkalinity in the redox stratified water column of Chesapeake Bay

Aubin Thibault de Chanvalon, George W. Luther, Emily R. Estes, Jennifer Necker, Bradley M. Tebo, Jianzhong Su, and Wei-Jun Cai

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Cited articles

Abril, G., Etcheber, H., Delille, B., Frankignoulle, M., and Borges, A. V.: Carbonate dissolution in the turbid and eutrophic Loire estuary, Mar. Ecol. Prog. Ser., 259, 129–138, 2003. 
Abril, G., Commarieu, M.-V., Maro, D., Fontugne, M., Guérin, F., and Etcheber, H.: A massive dissolved inorganic carbon release at spring tide in a highly turbid estuary: DIC at spring tide in a estuary, Geophys. Res. Lett., 31, L09316, https://doi.org/10.1029/2004GL019714, 2004. 
Aller, R. C.: 8.11 – Sedimentary Diagenesis, Depositional Environments, and Benthic Fluxes, in: Treatise on Geochemistry, 2nd edn., edited by: Turekian, H. D. H. K., Elsevier, Oxford, 293–334, ISBN 9780128182345, 2014. 
Alshameri, A., He, H., Zhu, J., Xi, Y., Zhu, R., Ma, L., and Tao, Q.: Adsorption of ammonium by different natural clay minerals: Characterization, kinetics and adsorption isotherms, Appl. Clay Sci., 159, 83–93, https://doi.org/10.1016/j.clay.2017.11.007, 2018. 
Avetisyan, K., Zweig, I., Luther, G. W., and Kamyshny, A.: Kinetics and mechanism of polysulfides and elemental sulfur formation by a reaction between hydrogen sulfide and δ-MnO2, Geochim. Cosmochim. Ac., 313, 21–37, https://doi.org/10.1016/j.gca.2021.08.022, 2021. 
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Short summary
The intensity of the oceanic trap of CO2 released by anthropogenic activities depends on the alkalinity brought by continental weathering. Between ocean and continent, coastal water and estuaries can limit or favour the alkalinity transfer. This study investigate new interactions between dissolved metals and alkalinity in the oxygen-depleted zone of estuaries.
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