Kinematics of Deformable Blocks: Application to the Opening of the Tyrrhenian Basin and the Formation of the Apennine Chain

摘要: We describe the opening of back-arc basins and associated formation accretionary wedges through application techniques deformable plate kinematics. These methods have proven to be suitable complex tectonic processes, such as those that are observed along Africa–Europe collision belt. In central Mediterranean area, these processes result from passive subduction lithosphere belonging Alpine Tethys Ionian Ocean. particular, we focus on Tyrrhenian basin contemporary Apennine chain. divide area Chain into polygons identified basis sets extensional structures coherent with unique Euler pole grids. The boundaries between coincide large lineaments characterize Tyrrhenian–Apennine area. style reflects variability relative velocity vectors two adjacent blocks. deformation elements is accomplished, allowing different rotation velocities lines compose blocks about same stable stage poles. angular extension determined stratigraphic records syn-rift sequences, while angles obtained by crustal balancing.