“…The deposition of the Itaiacoca Group has been interpreted as related with different tectonic settings, including deposits of tidal plain environment close to the coast (Petri and Suguio, 1969), grabens and rifts with formation of elongated and restricted basins (Hasui et al, 1984b(Hasui et al, , 1986, aulacogen basins (Chiodi Filho, 1983, 1984, continental shelf developed in a rifted continental margin basin (Takahashi et al, 1984Souza, 1990Souza, , 1992Campanha, 1991;Frascá, 1992;Sallun Filho, 1999), sedimentation in a relatively deep depositional setting, sub-coast and below fair-weather wave base (Sallun Filho and Fairchild, 2000, 2005, intra arc basin (Soares, 1987a, Andean type (Campanha et al, 1987) and B type subduction settings , delta systems (Trein et al, 1985), arc island (Campanha, 2002) and passive margin developed on a stable region (Reis Neto, 1994;Campanha and Sadowski, 1999).…”