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Can I read Mineralogy and Fluid Chemistry Controls on Lithium Isotope Fractionation During Clay Adsorption on EtoBox?
Mineralogy and Fluid Chemistry Controls on Lithium Isotope Fractionation During Clay Adsorption by Wenshuai Li; Xiao-Ming Liu is a Environmental Science article available to read on EtoBox.
What is Mineralogy and Fluid Chemistry Controls on Lithium Isotope Fractionation During Clay Adsorption about?
Our current understanding of controls on δ 7Li variability and fractionation mechanisms is limited, complicating the interpretation of chemical weathering. The role of clay adsorption in Li isotope fractionation during chemical weathering has been confirmed. However, clay assemblage and fluid chemistry are not simple and often variable in weathering settings, potentially modulating Li isotope fractionation on Earth's surface. Here, this research investigated the patterns and processes of Li isotope fractionation during adsorption on kaolinite and smectite with fluid chemistry of 0.001 M NaCl, 0.5 M NaCl, and 0.001 M Na2HPO4. Specifically, the time-dependent experiments with the reaction period up to 15 days revealed that the steady state can be achieved within one day under neutral conditions. The concentration-dependent (initial Li concentration of 2 to 1000 μM) experiments confirmed the accumulation of Li+ in smectite interlayers and adsorption of Li+ only at the external surfaces of kaolinite. Using 0.5 M NaCl solution and the desorption experiments, we hypothesize that outer-sphere Li may exist in the interlayer sites, which can be replaced by excess Na+. In comparison, inner-s
Who reads Mineralogy and Fluid Chemistry Controls on Lithium Isotope Fractionation During Clay Adsorption?
It is typically read by researchers, students, and practitioners in Environmental Science.
- Author
- Wenshuai Li; Xiao-Ming Liu
- Publisher
- Elsevier BV
- Published
- 2022
- Language
- EN
- Field
- Environmental Science (Physical Sciences)