Microstructural evolution of silicate immiscible liquids in solidifying ferrobasalts

• Main Author: Honour, Victoria Claire
• Format: Thesis
• Language: English
• Published: Apollo - University of Cambridge Repository 2020
• Subjects: Fe-rich droplet; ferrobasalt; silicate liquid immiscibility; experimental petrology; heterogeneous nucleation; homogeneous nucleation; droplet coarsening; North-East England dykes; compositional boundary layers; atom probe tomography; igneous petrology; microstructures; Skaergaard; Skaergaard fieldwork; Laki; Iceland
• Online Access: https://dx.doi.org/10.17863/cam.50738; https://www.repository.cam.ac.uk/handle/1810/303661

Evidence of silicate liquid immiscibility in ferrobasalts is provided by co-existing Fe- and Si-rich melt inclusions and Fe-rich droplets dispersed in the Si-rich glassy mesostasis of rapidly cooled rocks. Crucially, the different physical properties of these unmixed liquids mean that they may migra...