The structure, dynamics and composition of the Earth’s core

Project Description:

A fundamental requirement of modelling the Earth’s core is that results from computer simulations and experimental studies of material properties should match the available seismic data. Yet results from many experiments and simulations show that there is a mismatch between mineral physics data and the seismological observations.

If we are to understand the dynamics and evolution of the Earth as a whole, we must be able to determine accurately the properties of core phases under extreme pressure/temperature conditions. In this PhD project, the student will determine the physical properties of core-forming phases with a view to better understanding the structure, dynamics and evolution of the Earth’s core.

Policy Impact of Research:

A better understanding of the evolution of our planet

Research Relating to this Project:

1. Martorell et al. 2013 Strong Premelting Effect in the Elastic Properties of hcp-Fe Under Inner-Core Conditions. Science 342. 466-468
2. Vočadlo et al. 2003 The properties of iron under core conditions from first principles calculations. Phys. Earth Planet. Int., 140, 101-125.
3. Vočadlo 2007 Ab initio calculations of the elasticity of iron and iron alloys at inner core conditions: evidence for a partially molten inner core? Earth Plan. Sci. Lett., 254, 227-232.