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Fig. 9


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Transatlantic Eburnean-Transamazonian correlation (in today’s Africa reference frame): (a) configuration at the end of the Paleozoic based on the Africa − South America pre-rift fit of the Equatorial Atlantic Ocean of Ye et al. (2017). The shear zone pattern in South America has been compiled mostly after Gibbs and Baron (1993), Delor et al. (2003b) and Cordani et al. (2006). The inset shows the relative position of cratons and the Panafrican mobile belt; (b) reconstruction of the Eburnean-Transamazonian orogen before Neoproterozoic formation of the Rokelides − Paraguay mobile belt (see text for further explanation). The reconstruction implies chisel-like closure of a Panafrican ocean accompanying clockwise rotation of the Guiana shield and limited (< 300 km) right-lateral movement along the mobile belt during Panafrican collision. Chisel-like closure of a “Rokelides ocean” would explain why a suture zone is imaged along the NNE-trending segment of the orogen (South of Labé; Ponsard et al., 1988), whereas such a suture is disputed further to the SE (Monrovia area; Williams and Culver, 1988).

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