We performed a study using forward basin modeling in the southeastward Caribbean region in order to evaluate the effect of active volcanic arcs and oblique convergence on the evolution of petroleum systems in the adjacent sedimentary basins. The study is done along a geologic profile based on the interpretation of a regional 2D seismic line across the Lesser Antilles island arc, oriented NW-SE with a length of ~650 Km and covers the SE corner of the Caribbean region. The Grenada and Tobago basins are the backarc and forearc of the Lesser Antilles island arc respectively, and record sedimentation since the early Eocene-recent with more than 14 km of thickness. Our interpretation suggests that both basins were a large basin during the Eocene and that were split by the impinging Lesser Antilles arc during the middle Miocene which remains as an active volcanic island arc until present. Basin modeling results of paleo- heat flow, temperature history and simple shear restorations shows that the impinging Lesser Antilles arc in the middle Miocene was key on the maturation of possible Paleogene source rocks in the Grenada and Tobago basins.


Article metrics loading...

Loading full text...

Full text loading...

This is a required field
Please enter a valid email address
Approval was a Success
Invalid data
An Error Occurred
Approval was partially successful, following selected items could not be processed due to error