Lithium diffusion in silicate melts
| Autor: | J. Nolan, S.J.B. Reed, G.J. Cunningham, R.K. Lowry, Paul Henderson, J.V.P. Long |
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| Rok vydání: | 1983 |
| Předmět: |
Ionic radius
Diffusion Thermodynamics chemistry.chemical_element Mineralogy Atmospheric temperature range Arrhenius plot Silicate Ion chemistry.chemical_compound Geophysics Pitchstone chemistry Space and Planetary Science Geochemistry and Petrology Earth and Planetary Sciences (miscellaneous) Lithium Geology |
| Zdroj: | Earth and Planetary Science Letters. 65:203-205 |
| ISSN: | 0012-821X |
| DOI: | 10.1016/0012-821x(83)90199-1 |
| Popis: | The diffusion properties of Li in an andesitic and pitchstone melt have been determined over the temperature range 1300–1400°C. The diffusion data have been fitted to an Arrhenius relationship between log D0 and 1/T, and give relatively small activation energies of diffusion: 21.4±5.8 kcal mol−1 in the andesite and 20.1±2.8 kcal mol−1 in the pitchstone. Li+, unlike several other cations, shows similar diffusivities in these melt compositions to that in a basaltic melt. Despite the similar ionic radius of Li+ to that of Co2+, the diffusion properties of the two ions are very different from each other. |
| Databáze: | OpenAIRE |
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