Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
8916166 | Cretaceous Research | 2018 | 86 Pages |
Abstract
A high-resolution stratigraphic analysis of the Upper Cretaceous Gurpi Formation has been undertaken in the Shahneshin section (Zagros Basin, Iran). New results on calcareous nannofossils, planktic foraminifers, dinoflagellate cysts and high-resolution carbon and oxygen stable isotopes form the basis of a reference section for the eastern Tethys that spans the upper Coniacian to the late Danian. Carbon-isotope correlation to Gubbio, Italy and the NW German chalk allows for the identification of many isotopic events as well as for the definition of new events in the Campanian and Maastrichtian. Our results allow for a review of the accurate position of the Coniacian/Santonian, Santonian/Campanian, and Campanian/Maastrichtian stage boundaries relative to carbon isotopes and plankton bioevents. The reliability of Coniacian to Maastrichtian planktic foraminifer, dinoflagellate cysts and calcareous nannofossil biohorizons is assessed.
Keywords
Related Topics
Physical Sciences and Engineering
Earth and Planetary Sciences
Palaeontology
Authors
Mohammad J. Razmjooei, Nicolas Thibault, Anoshiravan Kani, Jaume Dinarès-Turell, Emmanuelle Pucéat, Samira Shahriari, WiesÅawa Radmacher, Amir Mohammad Jamali, Clemens V. Ullmann, Silke Voigt, Théophile Cocquerez,