GD
Geodynamics

tomography

The Tectonic Memory of the Mantle

and December 7, 2022
The Tectonic Memory of the Mantle
A cross section through the optimised mantle convection model of Müller et al. 2022, showing non-dimensional temperature anomalies through the mantle underneath South America along the 10° south parallel.

The study of the mantle aids in our understanding of the Earth’s tectonic evolution. In this week’s news and views, honours student Mr. Robert Marks shares his thoughts. Mr. Marks received his Bachelors (Hons) degree from the University of Wollongong under the supervision of Dr Nicolas Flament. The Earth’s mantle is filled with subducted slabs, which are remnants of tectonic plates tha ...[Read More]

On the resolution of seismic tomography models and the connection to geodynamic modelling (Is blue/red the new cold/hot?) (How many pixels in an Earth??)

June 5, 2019
What do the blobs mean?
What do the blobs mean?

Seismologists work hard to provide the best snapshots of the Earth’s mantle. Yet tomographic models based on different approaches or using different data sets sometimes obtain quite different details. It is hard to know for a non specialist if small scale anomalies can be trusted and why. This week Maria Koroni and Daniel Bowden, both postdocs in the Seismology and Wave Physics group in ETH ...[Read More]