![]() The results support a hypothesis that during the breakup of Africa and South America, the Gulf of Guinea cul-de-sac consisted of several microplates, generated from brittle deformation of continental crust in response to mantle convection stresses from below, as well as torsional stresses from the northward of the South Atlantic rip into the Brasilo-West African region. ![]() Seismic stratigraphic and structural analysis more ยป illustrate tectonic control of clastic and carbonate sedimentation, and the interplay of basinal subsidence with eustatic sea-level changes. ![]() Depth-to-basement data from exploratory wells in the basins were evaluated with thermo-mechanical subsidence models, to make geodynamic estimates of lithospheric extension. Data interpretation reveal discordant fracture zones beneath the Niger Delta region, indicating the Gulf of Guinea basins originated as a series of pull-apart basins, that favorable maturation estimates, migration pathways to good source-rocks, and trapping stratigraphic and structural configurations exist for the accumulation of hydrocarbons in several parts of the basin. ![]() ![]() The assembled aeromagnetic, reflection-seismic, well-log, and gravity data, eliminate the large, problematic gaps in published geophysical data over the shallow-marine and coastal onshore. ![]()
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