GD
Geodynamics

Geodynamics 101

Don’t Stop Me Now: A Fracture Mechanics Perspective on Earthquake Nucleation

Schematic for a possible earthquake nucleation scenario. Inset figure adapted after Lebihain et al. (2021) and McLaskey (2019).

How do earthquakes start? Earthquakes occur when a block of rock rapidly slides past another along an interface or a discontinuity in the medium and release energy in the form of seismic waves. Turns out, the surface of the earth is riddled with a lot of these discontinuities, which we call “faults”. If we plot the locations of earthquakes on a world map (Figure 1a), we will see that they highligh ...[Read More]

The Geodynamics Division @ EGU25

The Geodynamics Division @ EGU25

With the EGU General Assembly (GA) less than a month away, attendees should start planning their schedules to get the most out of the week. In today’s blog, Geodynamics (GD) Division Early Career Scientist (ECS) representative Garima Shukla highlights the GD Division’s networking events and provides an overview of key events at the GA.  Networking Events: Geodynamics Division What: ECS ...[Read More]

Halokinesis: the effect and importance of the most “liquid” rocks in geodynamics

Halokinesis: the effect and importance of the most “liquid” rocks in geodynamics

Evaporitic rocks possess unique properties that enable them to form crucial structures for petroleum systems. Salt basins are globally distributed, particularly along the Atlantic margins. Their thermal and mechanical properties can influence the Earth’s crust, altering structural styles and basin architecture, with significant implications for hydrocarbon exploration and geodynamic processes. How ...[Read More]

Coexisting Forces in Geodynamic Modelling: Pros, Cons, and Synergies of Analogue and Numerical Modelling

Coexisting Forces in Geodynamic Modelling: Pros, Cons, and Synergies of Analogue and Numerical Modelling

Geodynamic modelling helps us understand Earth’s internal processes by providing a framework to test hypotheses. Analogue modelling uses physical models governed by the laws of nature, with resolution down to Planck’s length. In contrast, numerical modelling employs mathematical methods to approximate solutions to the physical laws governing Earth’s processes. Each modelling approach comes with it ...[Read More]