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.

中文翻译：

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盘古大陆分裂期间巴西东北部的反复构造活动：U-Pb碳酸盐测年的约束

来自巴西东北部 Borborema 省陆内盆地裂谷边界断层样品的碳酸盐 U-Pb 测年表明，Pangea 分裂期间从晚三叠世到古新世持续 > 150 米的反复构造活动，重新激活了继承的走滑新元古代–寒武系剪切带。三叠纪时代表明脆性变形开始于先前已知的大约 80 米，很可能与沿初始中大西洋的裂谷有关。随后的南大西洋白垩纪的张开在裂谷和盆地发育过程中引起了新的断层活动。此外，表明沿裂谷边界断层的新生代反复构造活动，