Constraining the composition of Earth's interior with mineral elasticity

The composition and temperature of the Earth's interior are fundamental for understanding the Earth's interior and dynamics. Because it's impossible to directly access most areas of the Earth's interior, the combination of the elasticity of minerals at high pressure and temperature (PT) and seismic results is one of most practical ways to constrain the temperature and chemical composition of Earth's interior. This is done by determining what kinds of mineral aggregates have the same sound veloci