Thermodiffusion of major and trace elements in dried aluminosilicate glass

Jiang, Zhihong; Ding, Xing; Song, Mo; Ling, Ming‐Xing

doi:10.1016/j.ceramint.2022.06.153

Cited by 4 publications

(3 citation statements)

References 29 publications

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“…Under specific conditions, some REEs can exhibit noticeable composition variations, such as significant negative anomalies observed in Eu and Ce under reduced and oxidized conditions, respectively [39][40][41][42][43], as well as REE fractionation driven by thermal diffusion [44][45][46]. REEs typically occur as trivalent cations.…”

Section: Geochemical Character Of Reesmentioning

confidence: 99%

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Complexation of REE in Hydrothermal Fluids and Its Significance on REE Mineralization

Di,

Ding

2024

Minerals

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Rare earth elements (REEs) have recently been classified as critical and strategic metals due to their importance in modern society. Research on the geochemical behaviors and mineralization of REEs not only provides essential guidance for mineral exploration but also holds great significance in enhancing our understanding of Earth’s origin and evolution. This paper reviews recent research on the occurrence characteristics, deposit types, and hydrothermal behaviors of REEs, with a particular focus on comparing the complexation and transport of REEs by F, Cl, S, C, P, OH, and organic ligands in fluids. Due to the very weak hydrolysis of REE ions, they predominantly exist as either hydrated ions or free ions in low-temperature and acidic to weakly basic fluids. As the ligand activity increases, the general order of transporting REEs is Cl− ≈ > F− ≈ > > OH− under acidic conditions or OH− > ≈ Cl− > F− under alkaline conditions. In acidic to neutral hydrothermal systems, the transport of REEs is primarily dominated by and Cl− ions while the deposition of REEs could be influenced by F−, , and ions. In neutral to alkaline hydrothermal systems, REEs mainly exist in fluids as hydroxyl complexes or other ligand-bearing hydroxyl complexes. Additionally suggested are further comprehensive investigations that will fill significant gaps in our understanding of mechanisms governing the transport and enrichment of REEs in hydrothermal fluids.

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Section: Geochemical Character Of Reesmentioning

confidence: 99%

“…Fluorine can decrease the solidus temperature and viscosity of silicate melts, as well as enhance ion diffusion rates [46,[158][159][160][161]. Additionally, it can increase the solubility of minerals such as zircon, monazite, ilmenite, and rutile in fluids or melts [162][163][164][165][166][167].…”

Section: Ree Fluoride Complexesmentioning

confidence: 99%

Complexation of REE in Hydrothermal Fluids and Its Significance on REE Mineralization

Di,

Ding

2024

Minerals

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“…This phenomenon was studied by Jiang et al who used 6 mm long capsules of dried aluminosilicate glass and a temperature gradient of 38 °C per mm with the cooler end being 1070 °C rising to 1300 °C at the hot end. 154 Analysis of the material was achieved using electron probe microanalysis and LA-ICP-MS. Analysis across the capsule ( i.e.…”

Section: Inorganic Chemicals and Materialsmentioning

confidence: 99%