%0 Journal Article
%T Structures and petroleum prospects of the Saramaguac¨¢n basin, Cuba, from 3D inversion of gravimetric data
%A Batista Rodr¨ªguez
%A Jos¨¦
%A Blanco Moreno
%A Jes¨²s
%A P¨¦rez-Flores
%A Marco
%A Rodr¨ªguez Infante
%A Alina
%J Geof¨ªsica internacional
%D 2012
%I Universidad Nacional Aut¨®noma de M¨¦xico
%X new structural details of the saramaguac¨¢n basin in central cuba are presented, based on 3d inversion of gravimetric data constrained by wells and surface geology information. the basin shows complex tectonics of the overthrust process. a probable structural analysis of the basin suggests structures of ramp and shelf, as well as the location and geometry of the basin and several sub-basins. known location and behavior of fault depth suggests some possible new or unknown faults. geometry variation, depth and thickness were determined for different rock formations. this has great importance for the sedimentary (oil-bearing) and paleomargin (oil-source) rocks, because it is the basis for future research to select the best sites for drilling, as well as a broad estimate calculation of hydrocarbon volume that can be stored in the oil-collector rocks. both groups of rocks are potential targets for oil prospecting. the oil-source rocks of the cuban system were found to be around 4 km depth. they are associated with carbonated rocks of the paleomargin. the oil-bearing rocks reache a depth of 10 km. the 3d model obtained supports the hypothesis that the ophiolites and the cretaceous volcanic arc rocks were tectonically emplaced from south to north, on top of carbonate-terrigenous sequences from the bahamas paleomargin. the model shows elements of the compressive tectonics that originated the saramaguac¨¢n basin in the mesozoic-tertiary. it also suggests that the saramaguac¨¢n basin presents favorable geologic conditions for oil deposits.
%K inverse theory
%K gravity anomalies and earth structure.
%U http://www.scielo.org.mx/scielo.php?script=sci_abstract&pid=S0016-71692012000100004&lng=en&nrm=iso&tlng=en