The transport of manganese and iron from sediments to overlying water is governed by oxygen dynamics
- Vero Carignan
- Jan 1, 2019
- 1 min read
Academic Writing
Published in Aquatic Geochemistry, 2019.
Oldham, V.E., Siebecker, M.G., Jones, M.R. et al. The Speciation and Mobility of Mn and Fe in Estuarine Sediments. Aquatic Geochemistry: 25, 3–26 (2019). https://doi.org/10.1007/s10498-019-09351-0
Many elements have long term sinks, or storage, in marine sediments. Seawater conditions and dynamics impact how much those elements are added to or removed from those sediments. Manganese and iron are important elements for phytoplankton growth and play critical roles in photosynthesis. Their distribution in the global ocean is governed by a balance of sources and sinks, with the largest sink for both elements being marine sediments. In this work, we show how oxygen dynamics in waters above and in surface marine sediments governs the transport of different forms of manganese and iron, in the coastal sediments of the St. Lawrence Estuary (Canada).
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