Abstract
The calcareous nannofossil biostratigraphy of three wells (DB-1, DB-2 and DB-3) drilled along an approximate SWW–NEE trend in the eastern section of the Benin (Dahomey) Basin, Nigeria, has shown significant stratigraphic gaps in the sedimentary succession. In this study, we better constrained the presence and durations of four major hiatuses that occurred between the Late Cretaceous and late Miocene. Most conspicuous was an approximately 11.62 million-year hiatus spanning the Maastrichtian (Late Cretaceous, ~72.1 Ma) and Danian (Early Paleocene, ~60.48 Ma). The other unconformities identified occurred during the Eocene/Oligocene, Late Oligocene/early Miocene and middle/late Miocene. The presence of these unconformities across large areas of the basin is an indication of low sea levels and/or tilt in regional basin tectonics during the Late Cretaceous/Early Paleogene and has implication for stratigraphic trap styles for hydrocarbon exploration.
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
