Home
Thomas Theunissen's picture

Thomas Theunissen

Researcher , Post-doc

I am Postdoc at UiB for 4 years in the Geodynamics group of the Department of Earth Science. My today's research at UiB is based on 2-D and 3-D numerical modelling at lithospheric scale. Data and observations from the North and South Atlantic  (seismic reflexion profiles, stratigraphy, paleo-environments...) are used as perfect natural cases to assess fundamantal processes of rifting. This work is funded by TOTAL through the COLORS project.

The aim of my research is to understand the impact of geodynamic processes on continental rifted margin formation and in particular feedback with surface processes. I investigate crustal tectonic, sedimentary, heat transfer and upper-mantle processes during rift evolution to understand rheological and thermal controls on extensional rift and passive margin geometry and to understand feedbacks with surface processes.

I also work(ed) in seismology (absolute earthquake location, seismic tomography, focal mechanisms) on previous projects to understand the geodynamics of the transition from subduction to collision at the southernmost part of the Ryukyu subduction (PhD work) and the geodynamics of the Pyrenean mountain range SW of France (1st Postdoc).

Selected publications
  • Gutscher, Marc-André; Klingelhoefer, Frauke; Theunissen, Thomas; Spakman, Willem; Berthet, Theo; Wang, Tanking; Lee, Chao-Shing. 2016. Thermal modeling of the SW Ryukyu forearc (Taiwan) : Implications for the seismogenic zone and the age of the subducting Philippine Sea Plate (Huatung Basin). Tectonophysics. 692: 131-142. doi: 10.1016/j.tecto.2016.03.029
  • Theunissen, Thomas; Huismans, Ritske S. 2016. Frictional strain weakening in long-term numerical modeling during rifting.
  • Theunissen, Thomas; Huismans, Ritske S. 2016. Long-term coupling and feedbacks between surface processes and tectonics during rifting.
  • Theunissen, Thomas; Huismans, Ritske S. 2016. Long-term coupling and feedbacks between surface processes and tectonics during rifting.
  • Theunissen, Thomas; Huismans, Ritske S. 2015. Long-term coupling and feedbacks between surface processes and tectonics during rifting.
  • Theunissen, Thomas; Huismans, Ritske S. 2015. Coupling and feedback between tectonics and surface processes during rifted margin formation.
  • Bethoux, Nicole; Theunissen, Thomas; Beslier, Marie-Odile; Font, Yvonne; Thouvenot, Francois; Dessa, Jean-Xavier; Simon, Soazig; Courrioux, Gabriel; Guillen, Antonio. 2016. Earthquake relocation using a 3D a-priori geological velocity model from the western Alps to Corsica: Implication for seismic hazard. Tectonophysics. 670: 82-100. doi: 10.1016/j.tecto.2015.12.016
  • Theunissen, Thomas; Huismans, Ritske S. 2014. Coupling and feedback between tectonics and surface processes during rifted margin formation.
  • Theunissen, Thomas; Chevrot, Sébastien; Sylvandeur, Matthieu; Monteiller, Vadim; Calvet, Marie; Villaseñor, Antonio; Benahmed, Sébastien; Pauchet, Hélène; Grimaud, Frank. 2017. Absolute earthquake locations using 3-D versus 1-D velocity models below a local seismic network: example from the Pyrenees. Geophysical Journal International. 212: 1806-1828. doi: 10.1093/gji/ggx472
  • Bethoux, Nicole; Theunissen, Thomas; Beslier, Marie-Odile; Font, Yvonne; Thouvenot, Francois; Dessa, Jean-Xavier; Simon, Soazig; Courrioux, Gabriel; Guillen, Antonio. 2016. Earthquake relocation using a 3D a-priori geological velocity model from the western Alps to Corsica: Implication for seismic hazard. Tectonophysics. 670: 82-100. doi: 10.1016/j.tecto.2015.12.016
  • Gutscher, Marc-André; Klingelhoefer, Frauke; Theunissen, Thomas; Spakman, Willem; Berthet, Theo; Wang, Tanking; Lee, Chao-Shing. 2016. Thermal modeling of the SW Ryukyu forearc (Taiwan) : Implications for the seismogenic zone and the age of the subducting Philippine Sea Plate (Huatung Basin). Tectonophysics. 692: 131-142. doi: 10.1016/j.tecto.2016.03.029

More information in national current research information system (CRIStin)