General Seminar : Dr. Vasilije Dobrosavljevic
Abstract: Earth’s core-mantle boundary features a complex landscape of multi-scale structures whose heterogeneous compositions and physical properties likely influence key phenomena in Earth’s interior. Interdisciplinary advances in the past decade have shown that mountain-scale structures discovered at roots of mantle plumes may be strongly enriched in solid FeO, a material exhibiting various unique but poorly constrained properties at deep Earth conditions.
Here, Dr. Dobrosavljevic will share his recent experimental results on the melting of FeO, as well as theoretical work on the material’s insulator-metal transition at these extreme conditions. These findings suggest the presence of solid FeO-rich regions at Earth’s mantle base can explain independent observations from multiple geophysical probes.
Abstract
Earth’s core-mantle boundary features a complex landscape of multi-scale structures whose heterogeneous compositions and physical properties likely influence key phenomena in Earth’s interior. Interdisciplinary advances in the past decade have shown that mountain-scale structures discovered at roots of mantle plumes may be strongly enriched in solid FeO, a material exhibiting various unique but poorly constrained properties at deep Earth conditions.
Here, Dr. Dobrosavljevic will share his recent experimental results on the melting of FeO, as well as theoretical work on the material’s insulator-metal transition at these extreme conditions. These findings suggest the presence of solid FeO-rich regions at Earth’s mantle base can explain independent observations from multiple geophysical probes.