Fig. 5 in Tectonic history and the biogeography of the freshwater fishes from the coastal drainages of eastern Brazil: an example of faunal evolution associated with a divergent continental margin

Fig. 5. Schematic diagram of origin and erosional SE-NW retreat of Serra do Mar coastal range in region between inland Paraná basin, and the Santos basin, coast of SE Brazil. 1- Eroded Senonian uplift, allowing deposition in both Santos and Paraná basins. Alkaline volcanism (A); Santos Fault (F). 2- Development of the Japi Erosional Surface at the end of Senonian. 3- Paleocene deformation of the Japi Surface (isostatic adjustment). Serra do Mar (SM) is generated at Santos Fault (F), system of continental rifts originated and continental platform formed in coast (P). 4- Erosional retreat (R) of Serra do Mar toward present position. The approximate position of Depressão Periférica is indicated (DP). Alkaline intrusions represent islands. Conventions: 1. Santos formation deposits, 2. Phanerozoic cover beneath the Serra Geral basalt, 3. Serra Geral Formation, 4. Alkaline bodies, 5. Bauru Group, 6. Faults (fromAlmeida & Carneiro, 1998).