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Dynamics of core and high pressure physics
Last Updated: 2026-02-05 15:29:05
Abstract
The core is believed to be the source of the magnetic field which is crucial for the maintenance of life on Earth. But how is the field generated, and what do we know about the conditions in the deep Earth. This course will explore these issues using a combination of seismological and mineral physics constraints together with electromagnetism and fluid dynamics approaches.
Objective
The objectives of this course fall into two categories: (i) The development of geophysical and sometimes mathematical strategies and methods needed to study the deepest parts of the Earth. (ii) The development of an understanding of the dynamics and physical constraints on the deepest parts of the Earth.
Content
(i) Structure and composition of the core: Seismological constraints, PREM, Adams-Williamson equation. Geochemical constraints. High Pressure mineral physics: Multi-anvil and diamond anvil cells, ab-initio methods, phase changes and discontinuities in the deep Earth. Thermal structure: Adiabatic temperature profiles, geotherms. Power sources for the Geodynamo. (ii) Observational geomagnetism: Spherical harmonics, global field models, westward drift, jerks, core surface field evolution, polarity excursions and reversals, time-averaged field. (iii) Theory of the Geodynamo: Review of Maxwell's equations, induction equation, kinematic dynamo concept. Core dynamics including Proudman-Taylor theorem, geostrophy and thermal winds. Self-consistent geodynamo models and experimental dynamos.
General Information
- Language
- English
- Levels
- MSC
- Frequency
- Yearly recurring
Examination
- Type
- end-of-semester examination
Course Components
| Type | Title | Time & Place | Hours |
|---|---|---|---|
| lecture with exercise | Dynamics of core and high pressure physics |
|
2 h weekly |