Deep Earth
Processes happening deep within the Earth can have major impacts on the Earth's surface. From the generation of the geomagnetic field in the core, which protects us from solar storms, to the rheology of the mantle, the study of how it undergoes solid state flow, influencing plate tectonics and the heights of topography in the continents.
We have a strong program of research into the deep earth processes ranging from characterization and modelling of the earth’s geodynamo that produces the geomagnetic field, protecting us from solar storms, to rheology and mineral changes in the mantle.
Research Highlights
Some of our recent projects involving the Deep Earth theme:
The DEEP team
Geomagnetic studies measure the direction and intensity of the Earth’s past magnetic field spanning timescales from human history to billions of years. This provides novel information on core dynamics and forcing and address such major questions as the timing of inner core formation. Our studies involve laboratory technique development, field campaigns targeting key time periods in Earth’s history, and theoretical developments to better understand magnetism at the grain scale.
Movements in the mantle
Movements in the mantle are driven by gravity and buoyancy variations from place to place. Those buoyancy variations are governed by mineral changes as well as temperature. A project begun in 2022 will address novel explanations for those mineral changes, including for the first time the effects of dynamic pressure variations and stress. The project will involve grain-scale and mantle-scale numerical models for the causes and consequences of those effects, work based mainly at Liverpool, together with seismological investigations based at Cambridge and high pressure experiments at Manchester.
https://news.liverpool.ac.uk/2022/07/20/3-3m-to-investigate-earths-mantle-convection/
Other activities in this theme: