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By S?rgio R. Dillenburg;Patrick A. Hesp
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17 × 10 t/yr) (Syvitski et al. 2005). L. Dominguez Fig. 5 The high relief coast of Southeastern Brazil characteristics typical of river deltas and such designation could result in misinterpretations (Dominguez 1996; Bhattacharya and Giosan 2003). During construction of these beach/dune-ridge strandplains (prograded barriers), changes in patterns of coastwise sediment dispersion, modulated by changes in atmospheric circulation, and river discharge have resulted in dramatic changes in coastline orientation and shoreline erosion which bears no resemblance to the classical strike-fed, autocyclic deltaic sedimentation models (Dominguez and Wanless 1991; Dominguez et al.
2001). g. Reconcavo, Camamu and Almada basins in the state of Bahia, and Potiguar basin in the Rio Grande do Norte State) (Fig. 1). On the southeastern coast of Brazil, the coastline is bordered by a high-relief area comprising high grade metamorphic rocks. This high relief area is interpreted by some authors to result from a Late Cretaceous uplift, followed by gravitational collapse along faulted blocks (Zalan and Oliveira 2005). Along the remainder of the coastal zone the basement rocks have been covered by Tertiary sediments of Miocene-Pliocene age, collectively named the Barreiras Formation, which gave origin to the coastal tablelands of eastern-northeastern-northern Brazil.
1992), which groups coastal environments using relative wave/tide energy and fluvial discharge in a temporal framework including transgression and progradation. As Cowell et al. (2003a, b) have pointed out, these traditional approaches have tended to promote a reductionist view involving separate analysis of the classical morphologies. These authors have also stated that this approach has proved incapable of solving or even properly addressing, large-scale coastal problems. The classification schemes using the relative energy of waves and tides superficially aspire to provide a mechanistic explanation to the origin of different coastal environments.