“…A dominant Cenozoic dextral strike-slip kinematics, evolving to transtensional in the Ross Sea, has been documented by field data (Capponi et al, 1999;Rossetti et al, 2002Rossetti et al, , 2003Rossetti et al, , 2006Storti et al, 2001Storti et al, , 2006Storti et al, , 2008. The regional pattern of strike-slip and extensional fault systems has been well constrained by seismic profile interpretation (Salvini et al, 1997), magnetic anomaly maps (e.g., Ferraccioli et al, 2000Ferraccioli et al, , 2009, and GPS measurements (Dubbini et al, 2010), revealing a complex tectonic framework of crustal-scale NW-SE dextral faults interacting with major N-S-striking extensional faults. This tectonic regime accommodated crustal extension and development of sedimentary basins (e.g., the Adare Trough, the Northern Basin and the Terror Rift) during Cenozoic oblique rifting in the WARS (e.g.…”