Abstract
A causal relationship between collisional processes in the Permo-Triassic Gondwanide Orogen and intracratonic deformation of a compressional, strike-slip and extensional nature, was suggested in the literature. In this paper available data are reviewed to test this model. It appears that the balance of evidence favours a Gondwanide Orogeny produced in a compressional back-arc setting, rather than by major collision. A possible cause for the deformation under relatively low-grade metamorphic circumstances is flat slab subduction. An important dextral strike-slip component may result from oblique subduction. The contemporaneous intracratonic deformation with similar orientation of principal stress axes may be related to the same flat slab subduction processes and/or orogen parallel shear, but was probably not a direct consequence of collision.
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