Mantle dynamics is a branch of geophysics that focuses on the study of the movement and behavior of the Earth's mantle, which is the layer of rock located between the Earth's crust and core. This field of research seeks to understand the processes that drive the movement of material within the mantle, such as convection currents, and how these processes impact the surface of the Earth, including plate tectonics, volcanism, and earthquakes. Mantle dynamics research often utilizes techniques such as seismic imaging, geodynamic modeling, and mineral physics to gain insights into the complex interactions and behaviors of the Earth's mantle. By studying mantle dynamics, scientists can better understand the internal workings of the Earth and how they influence the planet's geological processes and evolution.