The track of South Atlantic hotspots on oceanic crust is well known. However, the possible hotspot trails of Tristan-Gough (TG) and St. Helena (SH) plume heads on continental crust have not been clearly defined. The occurrence of a large igneous province in Northeast Brazil, previously named EQUAMP, is reviewed, enlarged in time and space, and renamed as the Borborema Large Igneous Province, or BOR-LIP (135-104 Ma). There is strong evidence of an active dual plume system during the South America breakup: The BOR-LIP, in Northeast Brazil, and the Paraná-Etendeka Magmatic Province – PEMP-LIP (135-131 Ma), in SE Brazil and SW Africa. As widely accepted, the post-breakup trajectories of the SH, TG, and Sierra Leone (SL) hotspot trails (on oceanic crust) illustrate how the South American and African plates drifted away from each other. Regarding the pre-breakup trajectories, coherent and robust evidence of the migration path of the TG and SH plume heads on continental crust within the Brazilian side of the margin is presented here. They are remarkable consistent with the northwestward movement of Africa and South America, during Early Cretaceous, when referred to a deeper lithospheric reference frame, not necessarily rooted in the core-mantle boundary. The migration paths on oceanic and continental crust of the SH and TG plumes, are consistent with an intense interplay between deep-sourced mantle plumes and the relative rotation between the South American and African plates, as illustrated by the non-linear TG hotspot trail within the extremely stretched continental crust of the Santos Basin. The expressive magmatism observed in the Santos Basin, stretched during the 130-114 Ma interval, is interpreted as a direct consequence of the change in the magma budget due to the arrival of the TG plume head beneath the basin, when decompression-driven may have released melting of plume material. Large volumes of CO₂, sourced by the mantle and found in petroleum accumulations within the Santos Basin, may be also genetically related to the TG plume accelerating the exhumation processes in hyper-extended terrains.

在洋壳上的南大西洋热点的轨迹是众所周知的。但是，尚未明确在大陆壳上的Tristan-Gough（TG）和St. Helena（SH）羽状喷头可能出现的热点轨迹。对巴西东北部一个大型火成岩省的发生进行了回顾，并在时间和空间上扩大了其名称，并将其更名为Borborema大火成岩省或BOR-LIP（135-104 Ma）。有强有力的证据表明，在南美解体期间有活跃的双羽系统：巴西东北部的BOR-LIP，巴西东南部和非洲西南部的Paraná-Etendeka岩浆省– PEMP-LIP（135-131 Ma）。被广泛接受的是，SH，TG和塞拉利昂（SL）热点的分手后轨迹（在大洋地壳上））说明南美板块和非洲板块如何彼此远离。关于破裂前的轨迹，陆壳上TG和SH羽状喷头迁移路径的连贯而有力的证据。此处显示了巴西边距的范围。当涉及到较深的岩石圈参考系时，它们与非洲和南美的西北向运动是显着的，并不一定植根于地幔边界。SH和TG羽流在海洋和大陆地壳上的迁移路径与深源地幔羽之间的强烈相互作用以及南美和非洲板块之间的相对旋转一致，如其中的非线性TG热点轨迹所示。桑托斯盆地极度伸展的大陆壳。在桑托斯盆地观察到的富有表现力的岩浆作用在130-114 Ma的时间段内伸展，这被解释为是由于TG羽状喷头到达盆地下方而导致的岩浆预算变化的直接结果，当减压驱动时，可能已释放出羽状物。大量的一氧化碳由地幔来源并在桑托斯盆地内的石油聚集中发现的图₂也可能与TG羽流在遗传上相关，这些羽流加速了超伸展地形中的掘尸过程。