The Benagerie Shear Zone: 1100 Myr of reactivation history and control over continental lithospheric deformation

Strength variations of the Australian continent: Effects of temperature, strain rate, and rheological changes

“…These thermal anomalies are associated with the Mesozoic rifting of the Tasman Sea and Southern Ocean, and also with the Cenozoic volcanoes. We can further notice that the high temperatures of the upper mantle of the Gawler craton are related to the intense reworking and refertilization occurred during the plate reorganization in the Mesoproterozoic (e.g., Aitken et al, 2016;Betts et al, 2016) and the Neoproterozoic orogenic events, which lead to the formation of the contiguous Delamerian Orogen (e.g., Williams and Betts, 2009). However, the sharp boundary observed in the surface heat flow map and crustal temperatures, which divides the Gawler craton into two parts (Figs.…”

Thermal and Compositional Anomalies of the Australian Upper Mantle From Seismic and Gravity Data

“…This reorganization was associated with intense reworking of the Gawler and Curnamona regions, including oroclinal bending, arc-like magmatism and the Hiltaba magmatic event, perhaps plume associated (Betts et al, 2009(Betts et al, , 2016. Furthermore, the late Neoproterozoic Delamerian Orogeny has had a pervasive influence on the SAC (Hand et al, 2007;Williams & Betts, 2009). Our model suggests quite a different lithospheric structure of the SAC with respect to the NAC, being dominated by high temperatures, moderate density, and an undepleted composition 10.1029/2020GC009305 (Mg# < 89.5).…”

Datação 40 Ar/ 39 Ar em zonas de cisalhamento ao longo do Lineamento Transbrasiliano : evolução e reativação

“…Extensas zonas de cisalhamentos transcorrentes se desenvolvem em limites de blocos litosféricos, podendo atingir profundidades mantélicas e ser submetidas a diferentes episódios de reativação (Bezerra et al, 2014;Vauchez et al, 2012;Williams and Betts 2009).…”