Abstract:South Atlantic opening has been typically modelled as being related to symmetric and static thermal upwelling and seafloor spreading that drive divergent continental drift of South America and Africa. Comparative analyses, however, show that South Atlantic opening is asymmetric and non-uniform. For neither asymmetric nor non-uniform opening are the underlying mechanisms clear. Here I use geological and geophysical data to inform analytical modelling, revealing that westward drifting and southward tapering of t… Show more
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