|Barium uptake into the shells of the common mussel (Mytilus edulis) and the potential for estuarine paleo-chemistry reconstruction|Gillikin, D.P.; Dehairs, F.A.; Lorrain, A.; Steenmans, D.; Baeyens, W.F.J.; André, L. (2006). Barium uptake into the shells of the common mussel (Mytilus edulis) and the potential for estuarine paleo-chemistry reconstruction. Geochim. Cosmochim. Acta 70(2): 395-407. dx.doi.org/10.1016/j.gca.2005.09.015
In: Geochimica et Cosmochimica Acta. Elsevier: Oxford. ISSN 0016-7037, more
|Also published as |
- Gillikin, D.P.; Dehairs, F.A.; Lorrain, A.; Steenmans, D.; Baeyens, W.F.J.; André, L. (2005). Barium uptake into the shells of the common mussel (Mytilus edulis) and the potential for estuarine paleo-chemistry reconstruction, in: Gillikin, D.P. (2005). Geochemistry of marine bivalve shells: the potential for paleoenvironmental reconstruction. pp. 183-207, more
Barium; Estuarine chemistry; Palaeoenvironments; Shells; Uptake; Mytilus edulis Linnaeus, 1758 [WoRMS]; ANE, Netherlands, Oosterschelde [Marine Regions]; ANE, Netherlands, Westerschelde [Marine Regions]; Marine
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- Validation of alternative marine calcareous skeletons as recorders of global climate change, more
|Authors|| || Top |
- Gillikin, D.P., more
- Dehairs, F.A., more
- Lorrain, A.
In this study we test if calcite shells of the common mussel, Mytilus edulis, contain barium in proportion to the water in which they grew. Similar to all bivalves analyzed to date, the [Ba/Ca]shell profiles are characterized by a relatively flat background [Ba/Ca]shell, interrupted by sharp [Ba/Ca]shell peaks. Previous studies have focused on these [Ba/Ca]shell peaks, but not on the background [Ba/Ca]shell. We show that in both laboratory and field experiments, there is a direct relationship between the background [Ba/Ca]shell and [Ba/Ca]water in M. edulis shells. The laboratory and field data provided background Ba/Ca partition coefficients (DBa) of 0.10 ± 0.02 and 0.071 ± 0.001, respectively. This range is slightly higher than the DBa previously determined for inorganic calcite, and slightly lower than foraminiferal calcite. These data suggest that M. edulis shells can be used as an indicator of [Ba/Ca]water, and therefore, fossil or archaeological M. edulis shells could be used to extend knowledge of estuarine dissolved Ba throughputs back in time. Moreover, considering the inverse relationship between [Ba/Ca]water and salinity, background [Ba/Ca]shell data could be used as an estuary specific indicator of salinity. The cause of the [Ba/Ca]shell peaks is more confusing, both the laboratory and field experiments indicate that they cannot be used as a direct proxy of [Ba/Ca]water or phytoplankton production, but may possibly be caused by barite ingestion.