Abstract
Three exposed Upper Coniacian-Lower Campanian stratigraphic sections (Jbil, Fguira Salah and Jebel Ejehaf) have been subjected to biostratigraphic study based on planktonic foraminifera in northern Tunisia. The interval of deposits studied belongs to the upper part of the Kef Formation, which consist of alternation of marl, indurate marl and limestone and the lower part of the Abiod Formation, which consists mainly of limestone. Three hundred eighteen samples were collected and examined. Assemblages of planktonic foraminifera are well preserved and composed mainly of Witheinella, Marginotruncana, Dicarinella, Contusotruncana, Globigerinelloides, Globotruncanita, Globotruncana, Heterohelix, Sigalia, Planoglobulina, and Ventilabrella.Several bioevents are recorded in these (interval) deposits including the last occurrence (LO) and the highest occurrence (HO) of Dicarinella asymetrica, LO of Costellagerina pilula, LO and HO of Sigalia deflaensis, Sigalia carpatica, Ventilabrella decoratissima, last occurrence (LO) of Ventilabrella eggeri, Sigalia bejaouensis, Planoglobulina manuelensis, Globotruncanita elevata, and Globotruncana arca. The thickness variation of the Upper Coniacian-Lower Campanian interval deposits in the present study areas reflects synsedimentary tectonism.
Sign-in/Register to access full text options 
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.
