Role of Inherited Tectonic Structures on Gravity-Induced Slope Deformations: Inference from Numerical Modeling on the Luco dei Marsi DSGSD (Central Apennines)

A pre-existing and inherited geostructural setting plays a fundamental role in preparing developing large-scale slope deformational processes. These structures affect the kinematics of process, geometrical characteristics, geomorphological evolution. In Apennine Belt, several deep-seated gravitational deformations (DSGSDs) that have evolved under clear structural control been recognized during last decades, but none with continuous well-defined basal shear zone (BSZ). The structurally-controlled DSGSD Luco dei Marsi represents first case Belt BSZ. Starting from detailed study process reconstruction morpho-evolutionary model slope, series numerical modelings were performed for DSGSD. analyses allowed us to reconstruct: (i) mechanism (ii) rheological behavior rock mass, (iii) main predisposing factors deformation. Numerical modeling has demonstrated significant played by on and, particular, importance an intensely jointed stratigraphic level development