UCLA

High pressure and temperature equations of state are powerful tools for probing the behavior of matter at extreme conditions. The recent deployment of third generation synchrotron light sources combined with stable, reproducible laser heating has allowed the measurement of high pressure and temperature equations of state in the diamond anvil cell. In this document I leverage this new capability to address several types of questions in the Earth sciences. Measurements of osmium metal are used to investigate different formulations of the equation of state and the measurement of very incompressible materials. Measurements of iron ringwoodite are used to examine trade-offs in seismic observables with thermal and compositional anomalies. Finally, the equation of state of cobalt oxide is used to make predictions about redox relations in the early Earth during core formation.