Prof. Dr. Marcel Thielmann

Avatar Thielmann

Prof. Dr. Marcel Thielmann

Geophysics - Professorship of Geodynamics and head of WG Geodynamics

Consultation hours: Monday–Friday by appointment

2.020

Meckenheimer Allee 176

53115 Bonn

Functions and Responsibilities

Prof. Dr. Thielmann is head of the Geodynamics Research Group within the Geophysics Division of the Institute of Earth Sciences, as well as head of the Emmy Noether Research Group QuakeID at the Bavarian Research Institute of Experimental Geochemistry and Geophysics (BGI) at the University of Bayreuth.

His research interests include deep earthquakes, flow of complex fluids through porous media and the rheology of Earth's lower mantle. He pursues an interdisciplinary approach to those subjects, his main tool being numerical modelling, combined with laboratory and field data. He is particularly interested in the interplay between different microscale processes and their impact on macroscale deformation. Understanding these feedback loops in the context of ductile failure in the mantle and lithosphere is crucial to better understand the seismic hazard originating from both deep earthquakes and shallow slow slip events, the formation of plate boundaries, but also to decipher the Earth's deep water cycle. 

Teaching

Master Physics of the Earth and Atmosphere

  • pea734 Tectonophysics (since WiSe 2025): BASIS, eCampus
  • pea820 Geodynamics (since SoSe 2025): BASIS, eCampus
  • pea834 Numerical Methods in Geophysics (since SoSe 2026): BASIS, eCampus

Further Information

QuakeID

The Emmy Noether Research Group QuakeID  aims at deciphering the rupture processes of deep earthquakes which occur at depths larger than 60 km. The first observations of these events go back to 1928 (by Kiyoo Wadati), yet there is no consensus on what processes cause them. To solve this long-standing problem, we employ an interdisciplinary approach where numerical simulations will be combined with novel high pressure laboratory experiments and seismological observations.

QuakeID_GraphicalAbstract_hu0406331e7e515d96678a1b5003d75837_512309_1200x0_resize_lanczos_3.png
© 2024 Marcel Thielmann. This work is licensed under CC BY NC ND 4.0
News from the Geophysics Department
Christmas lecture in module PEA735 – Electrical Imaging
The module “Electrical Imaging” (Master’s program PEA https://www.ifgeo.uni-bonn.de/en/study/study-mug/master-pea) covers the theoretical fundamentals of geoelectrical methods in geophysics. While the emphasis is on the mathematical description of the underlying physics, we turned to a hands‑on activity just before Christmas.
Presentation on meteorology and geophysics at the 25th Schnupper-Uni – join in!
The University of Bonn invites all female students in grades 10 to 13 to attend the 25th Schnupper-Uni for Female Students on Tuesday, 10 February 2026, offering exciting insights into the worlds of astronomy, biology, chemistry, geodesy and geoinformation, geosciences, computer science, mathematics, meteorology and geophysics, molecular biomedicine, pharmacy and physics.
Inaugural lecture on deep earthquakes as a mystery from the depths by Prof. Marcel
At the Dies Academicus of the 2025/26 winter semester, Prof. Marcel Thielmann presented the current theories and hypotheses on deep earthquakes in his lecture and explained how modern computer simulations can help to understand the physical processes responsible for these phenomena.
Field days in the module ‘Geophysical Data Evaluation and Field Exercise’, WS 25/26
In beautiful November weather, the Environmental Geophysics Working Group successfully held this year's field days for the bachelor's module ‘Geophysical Data Analysis and Field Exercise’. As part of the event, prospective geophysicists from the University of Bonn gained their first practical experience with the various geophysical measurement methods used for non-invasive exploration of the subsurface.

Contact

Prof. Dr. Marcel Thielmann

Geophysics - Professorship of Geodynamics and head of WG Geodynamics

Consultation hours: Monday–Friday by appointment

2.020

Meckenheimer Allee 176

53115 Bonn

Wird geladen