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• W3048449595 abstract "Germanium is a useful tracer of silicate weathering and secondary mineral formation in the Critical Zone because Ge/Si ratios are fractionated during incongruent weathering of silicates. We develop an estimate of the equilibrium fractionation coefficient between germanium and silicon for the precipitation of kaolinite using a solid-solution model. Thermodynamic properties and distribution coefficient were estimated using observations from natural systems, experimental data from analog phyllo-germanate minerals (Shtenberg et al., 2017) and a parametric method based on a sum of oxides approach with site-specific interaction parameters (Blanc et al., 2015). The estimated logDGe-Si' for the incorporation of Ge into kaolinite at 25 °C and 0.1 MPa is equal to −3.4 ± 1.5. The estimated ΔGf° for a fully Ge substituted kaolinite (Ge2Al2O5(OH)4) equals −3130 ± 15 (kJ/mol) and the estimated logKsp for Ge-kaolinite = 3.1 ± 1.5. We further develop a series of batch reaction models using a geochemical reactive transport code to test the estimated range of the Ge-Si equilibrium fractionation coefficient. In these series of models, we also investigate how precipitation dynamics can impact the Ge/Si ratios observed both in streams and soils. These models show that both precipitation kinetics and re-equilibration of the precipitated solid control the behavior of Ge/Si ratios at far-from-equilibrium timescales. While the actual length of these timescales remains to be determined by better constraints on kaolinite precipitation rates at environmental conditions; our models suggest that the lowest groundwater measured Ge/Si ratios should represent this equilibrium timescale." @default.
• W3048449595 created "2020-08-18" @default.
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• W3048449595 date "2020-11-01" @default.
• W3048449595 modified "2023-10-06" @default.
• W3048449595 title "A model for germanium-silicon equilibrium fractionation in kaolinite" @default.
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• W3048449595 cites W1966906614 @default.
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• W3048449595 doi "https://doi.org/10.1016/j.gca.2020.07.046" @default.
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