GD
Geodynamics

edited by Pauline Gayrin

Pauline is a doctoral researcher working in GFZ Potsdam, Germany. She is working on the development of new techniques to map and characterise the fault networks in continental rifts allowing a better global understanding of regional dynamics. She likes to study motion in general (of plates, of faults, etc.) using different approaches such as analogue modelling, satellite imagery.

What’s blobbing inside the Earth? – insights from numerical modelling

What’s blobbing inside the Earth? – insights from numerical modelling

Seismic waves tell us that something unusual is happening in the lowermost few hundred kilometers of Earth’s mantle. Beneath Africa and the Pacific lie two enormous thermochemical structures known as Large Low-Shear-Velocity Provinces (LLSVPs). These “large blobs” are slower to transmit shear waves, but beyond that, their physical nature remains one of the biggest open questions …[Read More]

Bored by the Lower Mantle? Think Again!

Bored by the Lower Mantle? Think Again!

Is the lower mantle boring? For a long time, the lower mantle was thought to be relatively featureless and uniform compared to the more dynamic upper mantle. But recent seismic observations are challenging that idea, especially when we look near the base of the mantle. Recent studies from Maureen Long’s group (Creasy et al. 2017, …[Read More]