An understanding of the early syn-rift basin evolution is fundamental for hydrocarbon exploration in the South Atlantic, and yet outcrops of early syn-rift sediments are rare. Syn-rift to early post-rift exposures in the Sergipe-Alagoas Basin were used as an analogue for early depositional sequences in offshore African and South American marginal basins.
Map of Region
Two field campaigns in the Sergipe-Alagoas Basin were carried out in 2000 and 2001, in collaboration with Unisinos (Porto Alegre, Brazil) and the University of Brasilia. Emphasis was placed on understanding sediment provenance during the rift to early post-rift phase of basin evolution and on establishing a new depositional model for the Maceio Formation, which includes the main source rock in the basin. The results have implications for the hydrocarbon plays in adjacent basins of Brazil and for the conjugate Gabon and Rio Muni basins of western Africa.
Most Recent Reports
- Paleontology of the Maceió Fm (Alagoas, NE Brazil): New depositional model and its implications for source rock distribution CASP.SAP.30
- Appendices to the rift evolution of NE Brazil project syn-rift evolution of the Sergipe Alagoas Basin. Summary report, GIS and PDF files, amendments and complete references CASP.SAP.31
- Petrological study of rift sediments from the Sergipe-Alagoas Basin: Implications for reservoir geology and hydrocarbon exploration CASP.SAP.29
- Provenance of Cretaceous sandstones in the Sergipe-Alagoas Basin, Brazil: A pilot heavy mineral study CASP.SAP.28
- The rift-transitional system of the South Atlantic margins: An analogue from the Sergipe Alagoas Basin. Sedimentology, paleogeography and hydrocarbon systems of the Maceió formation CASP.SAP.27