The DMR team deals with processes operating in 3 main geological environments: divergent systems, convergent systems and transforming systems.
Our efforts include understanding the functioning of oblique transformant systems (in extension or compression), the history of finite, recent and active deformation (with a focus on earthquake time series and inter-seismic loading). ), interactions with the “abnormal” mantle or the role of magmas and their spatio-temporal relationships with tectonic deformation. Our team is also developing a multidisciplinary land-sea study on the Brittany regional shipyard.
- from rifting to accretion, inversion to subduction: a continuum
- big questions: exhumation mechanisms, tectonic-magmatism interactions, seismogenesis, inversion, incipient subduction, arcs, rollback
3 main lines of work for the five-year period 2017-2021:
- divergent systems: transition to accretion, syn-magmatic rupture, deformation and seismogenesis of the dorsal, accretion vs exhumation, post-rupture evolution (breakup)
- convergent systems: inversion of margins, remobilization of the continent-ocean transition, arcuate subductions, rollback, obliquity in convergence: partitioning
- transforming systems: characterization of Transducer Transform Edge Propagator (STEP-margins), deformation and seismogenesis of transformants, origin marginal trays