Academic Journal
Microstructural evolution of silicate immiscible liquids in ferrobasalts
| العنوان: | Microstructural evolution of silicate immiscible liquids in ferrobasalts |
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| المؤلفون: | Honour, Victoria C., Holness, Marian B., Partridge, Jamie L., Charlier, Bernard |
| بيانات النشر: | Springer Berlin Heidelberg Contributions to Mineralogy and Petrology |
| سنة النشر: | 2020 |
| المجموعة: | Apollo - University of Cambridge Repository |
| مصطلحات موضوعية: | Original Paper, Immiscibility, Nucleation kinetics, Droplet size distributions, Wetting angle, Ferrobasalt, Binodal |
| الوصف: | An experimental study of the microstructural evolution of an immiscible basaltic emulsion shows that the Fe-rich liquid forms homogeneously nucleated droplets dispersed in a continuous Si-rich liquid, together with droplets heterogeneously nucleated on plagioclase, magnetite, and pyroxene. Heterogeneous nucleation is likely promoted by localised compositional heterogeneities around growing crystals. The wetting angle of Fe-rich droplets on both plagioclase and magnetite increases with decreasing temperature. Droplet coarsening occurs by a combination of diffusion-controlled growth and Ostwald ripening, with an insignificant contribution from coalescence. Characteristic microstructures resulting from the interaction of immiscible Fe-rich liquid with crystal grains during crystal growth can potentially be used as an indicator of liquid unmixing in fully crystallised natural samples. In magma bodies < ~ 10 m in size, gravitationally driven segregation of immiscible Fe-rich droplets is unlikely to be significant. |
| نوع الوثيقة: | article in journal/newspaper |
| وصف الملف: | application/pdf; application/zip; text/xml |
| اللغة: | English |
| Relation: | https://www.repository.cam.ac.uk/handle/1810/309601 |
| DOI: | 10.17863/CAM.56696 |
| الاتاحة: | https://www.repository.cam.ac.uk/handle/1810/309601 https://doi.org/10.17863/CAM.56696 |
| Rights: | Attribution 4.0 International (CC BY 4.0) ; https://creativecommons.org/licenses/by/4.0/ |
| رقم الانضمام: | edsbas.D5BBBAC7 |
| قاعدة البيانات: | BASE |
| DOI: | 10.17863/CAM.56696 |
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