Mg/Ca Ratios in Synthetic Low-Magnesium Calcite: An Experimental Investigation
The work presented sought to determine the effects of Mg/Ca ratios in solution have on Mg partitioning (K<sup>Mg</sup>) between precipitated abiotic low-Mg calcite and solution. Experiments were set up so that Mg/Ca in precipitated abiotic calcite would match the Mg/Ca in planktonic fora...
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| Autores principales: | , , , , , , , |
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| Formato: | article |
| Lenguaje: | EN |
| Publicado: |
MDPI AG
2021
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| Materias: | |
| Acceso en línea: | https://doaj.org/article/dafba7472e4d4da98507121eb52aaf02 |
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| Sumario: | The work presented sought to determine the effects of Mg/Ca ratios in solution have on Mg partitioning (K<sup>Mg</sup>) between precipitated abiotic low-Mg calcite and solution. Experiments were set up so that Mg/Ca in precipitated abiotic calcite would match the Mg/Ca in planktonic foraminifera. This research intended to investigate the effect of Mg/Ca<sub>(Fluid)</sub> on K<sup>Mg</sup> when the molar value of Mg/Ca<sub>(Fluid)</sub> was below 0.5, which is below the previously reported Mg/Ca range. The values of pH, salinity, and aqueous Mg/Ca were monitored during calcite precipitation, and Mg/Ca of calcite was determined at the end of experiments. Partition coefficients of Mg were evaluated as a ratio of Mg/Ca in calcite to the averaged ratio of aqueous Mg/Ca for each experiment. |
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