Timing and drivers of Adria's independent motion: where do we stand?

The Adriatic microplate (Adria) is a key player in the geodynamics of the Alpine–Mediterranean area, representing a fragment of continental lithosphere caught between the converging Eurasian and African plates. Adria’s motion and deformation have shaped the evolution of the surrounding collisional and subduction systems, including the Alps to the north, the Apennines to the west, and the Dinarides-Hellenides to the east. This complex setting renders kinematic reconstructions of Adria’s past motion very challenging. While GNSS data clearly show that Adria currently undergoes independent counter-clockwise motion, the timing of onset of its independent motion and the processes driving this change remain debated.

Over the past decades, tectonic reconstructions, geodesy, geophysical imaging, and geodynamic modelling have shifted the view of Adria from a rigid promontory of Africa to an actively evolving microplate interacting with complex plate boundaries. This presentation reviews recent developments in our understanding of Adria's kinematic evolution, focusing especially on advances in high-resolution 3D thermo-mechanical modelling. These models, integrated with geological observations, provide new perspectives on the role of subduction dynamics and mantle flow in driving Adria’s motion, and highlight the links between Adria’s kinematics and major Neogene tectonic events.

The independence of the Adriatic microplate likely reflects a progressive geodynamic reorganisation driven by subduction dynamics, mantle flow, and crustal deformation, leading to mechanical decoupling between Adria and Africa. Understanding this transition and the underlying processes provides a unique opportunity to explore how microplates form and evolve, and how plate reorganisations influence the evolution of orogenic belts.