The final inverse model of each sample can be found below. Final models were run with all data available for the sample, as indicated in each figure. Black line represents the expected model, that is, a weighted mean model, where the weighting is provided by the posterior probability for each model. The expected model is the one displayed in figures 6 and 7 of the paper. Confidence intervals represent a 95% probability range. Black dots placed according the AFT central age of the sample. For further information see Gallagher (2009Gallagher ( , 2012 and QTQt User Guide v5.7.

Carbonate U-Pb dating of samples from rift-bounding faults of intracontinental basins in the Borborema province, northeastern Brazil, indicate recurrent tectonic activity during Pangea breakup lasting for >150 m.y. from the Late Triassic to the Paleocene, reactivating inherited strike-slip Neoproterozoic–Cambrian shear zones. Triassic ages indicate that brittle deformation started some 80 m.y. before previously known, most likely related to rifting along the incipient Central Atlantic. The subsequent Cretaceous opening of the South Atlantic caused renewed fault activity during rifting and basin development. Furthermore, recurrent Cenozoic tectonic activity along the rift-bounding faults is indicated, suggesting that structural inheritance of the Neoproterozoic–Cambrian continental-scale Borborema shear zone system has been responsible for accommodation of recurrent tectonic stress from Mesozoic rifting to the present day.

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