Interpretação Aeromagnetométrica Da Região Da Bacia Do Rio Almada - Ilhéus, Bahia

In Campos' basin, in the state of Rio de Janeiro,<br>the success index in the hydrocarbon exploration<br>in tertiary reservoirs has been high. That is largely<br>related to the several techniques of geophysical<br>search, with prominence in the seismic 3D,<br>applied during the phases of exploration<br>development and production. There is, however, a<br>great potential no explored in turbidictics deeper<br>Cretaceous, on which the seismic data are not<br>shown conclusive, being needed, therefore, of<br>researches more deepened.<br>This work seeks to accomplish detailed<br>geophysical studies of the turbidictics deposits<br>that surface in the part emerged of the Basin of<br>Almada, considered similar to the turbidictics<br>reservoirs of Campos' Basin, focusing the<br>magnetometric method, with the main objective,<br>the understanding of the structural outline of the<br>basin and of Rio Almada's canyon.<br>The sedimentary basin of the river Almada is<br>incrusted in a small lowered strip, with area of<br>approximately 200 km2, in the south coastal<br>margin southern of Bahia, among the parallel of<br>14° 30' and 15° 00' and the meridians of 39° 00'<br>and 39° 14'. The basin is divided in two portions,<br>a continental one and other oceanic one. In the<br>continental portion it is delimited N and S by the<br>High of Itacaré and Islanders, respectively. The<br>sea portion penetrates for the continental platform<br>for more 1300 km2, where it reaches thickness of<br>until 6000 m in bathymetric cots of 200 m (Brurn<br>et al., 1989). Committees the basins of Camamu-<br>Almada, Jequitinhonha and Cumuruxatiba<br>understand it denominated basin of the south of<br>Bahia and they are classified as rifts that<br>developed for pull-aparts. (Figueiredo et al.,<br>1986).